diff --git a/LICENSE.txt b/LICENSE.txt
index c30fe2b3d32a..d81488489b97 100755
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -639,3 +639,37 @@ under a '2-clause BSD' license.
   LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   SUCH DAMAGE.
+
+----
+This project bundles a copy of the Vega minified javascript library version
+5.19.1, the Vega-Lite minified javascript library version 5.0.0, and the
+Vega-Embed minified javascript library version 6.15.1. All three are
+available under the following '3-clause BSD' license.
+
+Copyright (c) 2015-2018, University of Washington Interactive Data Lab
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors
+  may be used to endorse or promote products derived from this software
+  without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/hbase-assembly/pom.xml b/hbase-assembly/pom.xml
index 795f832d97c6..c808b71d5eb2 100644
--- a/hbase-assembly/pom.xml
+++ b/hbase-assembly/pom.xml
@@ -53,6 +53,7 @@
                 <debug-print-included-work-info>${license.debug.print.included}</debug-print-included-work-info>
                 <bundled-dependencies>${license.bundles.dependencies}</bundled-dependencies>
                 <bundled-jquery>${license.bundles.jquery}</bundled-jquery>
+                <bundled-vega>${license.bundles.vega}</bundled-vega>
                 <bundled-logo>${license.bundles.logo}</bundled-logo>
                 <bundled-bootstrap>${license.bundles.bootstrap}</bundled-bootstrap>
               </properties>
diff --git a/hbase-http/pom.xml b/hbase-http/pom.xml
index f42e3244f528..e36989ba83ef 100644
--- a/hbase-http/pom.xml
+++ b/hbase-http/pom.xml
@@ -65,6 +65,7 @@
                 <debug-print-included-work-info>${license.debug.print.included}</debug-print-included-work-info>
                 <bundled-dependencies>${license.bundles.dependencies}</bundled-dependencies>
                 <bundled-jquery>${license.bundles.jquery}</bundled-jquery>
+                <bundled-vega>${license.bundles.vega}</bundled-vega>
                 <bundled-logo>${license.bundles.logo}</bundled-logo>
                 <bundled-bootstrap>${license.bundles.bootstrap}</bundled-bootstrap>
               </properties>
diff --git a/hbase-resource-bundle/src/main/resources/META-INF/LICENSE.vm b/hbase-resource-bundle/src/main/resources/META-INF/LICENSE.vm
index 760208f4b863..afbf0b8842c3 100644
--- a/hbase-resource-bundle/src/main/resources/META-INF/LICENSE.vm
+++ b/hbase-resource-bundle/src/main/resources/META-INF/LICENSE.vm
@@ -222,9 +222,10 @@ under the License.
 
 ## Special cases, for e.g. ASL2.0 licensed works that bundle additional third party works
 #set($bundled-jquery = ${bundled-jquery.equalsIgnoreCase("true")})
+#set($bundled-vega = ${bundled-vega.equalsIgnoreCase("true")})
 #set($bundled-logo = ${bundled-logo.equalsIgnoreCase("true")})
 #set($bundled-dependencies = ${bundled-dependencies.equalsIgnoreCase("true")})
-#if($bundled-jquery || $bundled-logo || $bundled-dependencies)
+#if($bundled-jquery || $bundled-vega || $bundled-logo || $bundled-dependencies)
 ====
 ${project.name} contained works
 
@@ -260,6 +261,40 @@ This project bundles a copy of the JQuery minified javascript library version
     OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
+#end
+#macro(vega_license)
+This project bundles a copy of the Vega minified javascript library version
+5.19.1, the Vega-Lite minified javascript library version 5.0.0, and the
+Vega-Embed minified javascript library version 6.15.1. All three are
+available under the following '3-clause BSD' license.
+
+Copyright (c) 2015-2018, University of Washington Interactive Data Lab
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors
+may be used to endorse or promote products derived from this software
+without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #end
 #macro(orca_logo_license)
 ----
@@ -1309,6 +1344,9 @@ You can redistribute it and/or modify it under either the terms of the
 #if(${bundled-jquery})
 #jquery_license()
 #end
+#if(${bundled-vega})
+#vega_license()
+#end
 #if(${bundled-logo})
 #orca_logo_license()
 #end
diff --git a/hbase-server/pom.xml b/hbase-server/pom.xml
index 619ae146e425..e2f16df0809e 100644
--- a/hbase-server/pom.xml
+++ b/hbase-server/pom.xml
@@ -34,6 +34,7 @@
     <license.bundles.logo>true</license.bundles.logo>
     <license.bundles.bootstrap>true</license.bundles.bootstrap>
     <license.bundles.jquery>true</license.bundles.jquery>
+    <license.bundles.vega>true</license.bundles.vega>
   </properties>
   <build>
     <!-- Make sure resources get added before they are processed by placing this first
@@ -100,6 +101,7 @@
                 <debug-print-included-work-info>${license.debug.print.included}</debug-print-included-work-info>
                 <bundled-dependencies>${license.bundles.dependencies}</bundled-dependencies>
                 <bundled-jquery>${license.bundles.jquery}</bundled-jquery>
+                <bundled-vega>${license.bundles.vega}</bundled-vega>
                 <bundled-logo>${license.bundles.logo}</bundled-logo>
                 <bundled-bootstrap>${license.bundles.bootstrap}</bundled-bootstrap>
               </properties>
diff --git a/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon b/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon
index 87b8289692c9..65c9e0b66c66 100644
--- a/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon
+++ b/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon
@@ -276,6 +276,10 @@ AssignmentManager assignmentManager = master.getAssignmentManager();
                 </div>
             </div>
         </section>
+        <section>
+            <h2><a name="region_visualizer"></a>Region Visualizer</h2>
+            <& RegionVisualizerTmpl &>
+        </section>
         <section>
             <h2><a name="peers">Peers</a></h2>
             <& peerConfigs &>
diff --git a/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/RegionVisualizerTmpl.jamon b/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/RegionVisualizerTmpl.jamon
new file mode 100644
index 000000000000..e04a81147c08
--- /dev/null
+++ b/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/RegionVisualizerTmpl.jamon
@@ -0,0 +1,119 @@
+<%doc>
+
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+</%doc>
+
+    <script type="text/javascript" src="/static/js/vega@5.19.1.min.js"></script>
+    <script type="text/javascript" src="/static/js/vega-lite@5.0.0.min.js"></script>
+    <script type="text/javascript" src="/static/js/vega-embed@6.15.1.min.js"></script>
+
+    <div id="vis" style="width:80%;"></div>
+    <script type="text/javascript">
+      vega.expressionFunction('values', function(obj) { return Object.values(obj); });
+      var vlSpec = {
+          $schema: 'https://vega.github.io/schema/vega-lite/v5.json',
+          description: 'Total `storefileSize` per Region Server',
+          data: {
+            name: 'region_info',
+            url: 'http://localhost:16010/api/v1/admin/cluster_metrics/live_servers',
+            format: { type: 'json', property: 'data' }
+          },
+          transform: [
+            { calculate: "split(datum.server_name.servername, ',', 1)[0]", as: 'server_name' },
+            { calculate: 'values(datum.region_status)', as: 'region_status' },
+            { flatten: ['region_status'] },
+            { calculate: "split(datum.region_status.name, ',', 1)[0]", as: 'table_name' },
+            { calculate: "split(datum.region_status.name, ',', 3)[2]", as: 'region_id' },
+          ],
+          vconcat: [{
+              title: {
+                text: 'Total `storefileSize` per Region Server',
+                align: 'center'
+              },
+              height: 250,
+              width: 'container',
+              mark: { type: 'bar', tooltip: true },
+              params: [{
+                name: 'legend_selection',
+                select: { type: 'point', fields: ['table_name'] },
+                bind: 'legend'
+              }],
+              encoding: {
+                x: {
+                  title:'Region Server',
+                  field: 'server_name',
+                  type: 'nominal',
+                  axis: {
+                    labelAngle: 90,
+                    labelOverlap: 'greedy'
+                  },
+                  scale: { domain: { param: 'brush' } },
+                  sort: '-y'
+                },
+                y: {
+                  title: 'Total StoreFileSize',
+                  field: 'region_status.store_file_size',
+                  type: 'quantitative',
+                  aggregate: 'sum',
+                  format: '.4s',
+                  axis: { format: '.2s' },
+                  scale: { domainMin: 0 }
+                },
+                color: {
+                  field: 'table_name',
+                  type: 'nominal',
+                  title: 'Table'
+                },
+                opacity: {
+                  condition: { param: 'legend_selection', value: 0.9 },
+                  value: 0.2
+                }
+              }
+            }, {
+              mark: 'bar',
+              height: 50,
+              width: 'container',
+              params: [{
+                name: 'brush',
+                select: { type: 'interval', encodings: ['x'] }
+              }],
+              encoding: {
+                x: {
+                  field: 'server_name',
+                  type: 'nominal',
+                  axis: null,
+                  sort: '-y'
+                },
+                y: {
+                  field: 'region_status.store_file_size',
+                  aggregate: 'sum',
+                  axis: null
+                },
+                color: {
+                  field: 'table_name',
+                  title: 'Table'
+                }
+              }
+            }]
+      };
+      vegaEmbed('#vis', vlSpec)
+        .then(function(result) {
+          //result.view.logger(vega.Debug);
+          //console.log(result.view.data('region_info'));
+        })
+        .catch(console.Error);
+    </script>
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/http/RegionVisualizer.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/http/RegionVisualizer.java
new file mode 100644
index 000000000000..9297043627de
--- /dev/null
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/http/RegionVisualizer.java
@@ -0,0 +1,256 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.hbase.master.http;
+
+import java.io.IOException;
+import java.lang.reflect.Type;
+import java.util.Collections;
+import java.util.List;
+import java.util.concurrent.ExecutionException;
+import java.util.stream.Collectors;
+import org.apache.commons.lang3.builder.EqualsBuilder;
+import org.apache.commons.lang3.builder.HashCodeBuilder;
+import org.apache.commons.lang3.builder.ToStringBuilder;
+import org.apache.commons.lang3.builder.ToStringStyle;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hbase.ClusterMetrics;
+import org.apache.hadoop.hbase.HBaseConfiguration;
+import org.apache.hadoop.hbase.RegionMetrics;
+import org.apache.hadoop.hbase.ServerMetrics;
+import org.apache.hadoop.hbase.ServerName;
+import org.apache.hadoop.hbase.Size;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.client.Admin;
+import org.apache.hadoop.hbase.client.AsyncAdmin;
+import org.apache.hadoop.hbase.client.AsyncConnection;
+import org.apache.hadoop.hbase.client.ConnectionFactory;
+import org.apache.hadoop.hbase.client.RegionInfo;
+import org.apache.hadoop.hbase.util.AbstractHBaseTool;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.yetus.audience.InterfaceAudience;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.apache.hbase.thirdparty.com.google.gson.FieldNamingPolicy;
+import org.apache.hbase.thirdparty.com.google.gson.Gson;
+import org.apache.hbase.thirdparty.com.google.gson.GsonBuilder;
+import org.apache.hbase.thirdparty.com.google.gson.JsonElement;
+import org.apache.hbase.thirdparty.com.google.gson.JsonObject;
+import org.apache.hbase.thirdparty.com.google.gson.JsonPrimitive;
+import org.apache.hbase.thirdparty.com.google.gson.JsonSerializationContext;
+import org.apache.hbase.thirdparty.com.google.gson.JsonSerializer;
+import org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;
+
+/**
+ * Support class for the "Region Visualizer" rendered out of
+ * {@code src/main/jamon/org/apache/hadoop/hbase/tmpl/master/RegionVisualizerTmpl.jamon}
+ */
+@InterfaceAudience.Private
+public class RegionVisualizer extends AbstractHBaseTool {
+  private static final Logger LOG = LoggerFactory.getLogger(RegionVisualizer.class);
+
+  private final Admin admin;
+  private final AsyncAdmin asyncAdmin;
+  private final Gson gson;
+
+  public RegionVisualizer() {
+    admin = null;
+    asyncAdmin = null;
+    gson = null;
+  }
+
+  public RegionVisualizer(final Admin admin) {
+    this.admin = admin;
+    this.asyncAdmin = null;
+    this.gson = buildGson();
+  }
+
+  public RegionVisualizer(final AsyncAdmin asyncAdmin) {
+    this.admin = null;
+    this.asyncAdmin = asyncAdmin;
+    this.gson = buildGson();
+  }
+
+  public String renderRegionDetails() {
+    return gson.toJson(clusterStatusToRegionDetails());
+  }
+
+  public static void main(final String[] argv) {
+    new RegionVisualizer().doStaticMain(argv);
+  }
+
+  static Gson buildGson() {
+    return new GsonBuilder()
+      .setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
+      .enableComplexMapKeySerialization()
+      .registerTypeAdapter(byte[].class, new ByteArraySerializer())
+      .registerTypeAdapter(Size.class, new SizeAsBytesSerializer())
+      .registerTypeAdapter(RegionDetails.class, new RegionDetailsSerializer())
+      .create();
+  }
+
+  private ClusterMetrics getClusterMetrics()
+    throws ExecutionException, InterruptedException, IOException {
+    if (admin != null) {
+      return admin.getClusterMetrics();
+    }
+    if (asyncAdmin != null) {
+      return asyncAdmin.getClusterMetrics().get();
+    }
+    throw new RuntimeException("should not happen");
+  }
+
+  private List<RegionDetails> clusterStatusToRegionDetails() {
+    final ClusterMetrics clusterMetrics;
+    try {
+      clusterMetrics = getClusterMetrics();
+    } catch (Exception e) {
+      LOG.warn("Failed to retrieve cluster metrics.", e);
+      return Collections.emptyList();
+    }
+
+    return clusterMetrics.getLiveServerMetrics().entrySet().stream()
+      .flatMap(serverEntry -> {
+        final ServerName serverName = serverEntry.getKey();
+        final ServerMetrics serverMetrics = serverEntry.getValue();
+        return serverMetrics.getRegionMetrics().values().stream()
+          .map(regionMetrics -> {
+            final TableName tableName = RegionInfo.getTable(regionMetrics.getRegionName());
+            return new RegionDetails(serverName, tableName, regionMetrics);
+          });
+      })
+      .collect(Collectors.toList());
+  }
+
+  @Override protected void addOptions() {
+
+  }
+
+  @Override protected void processOptions(CommandLine cmd) {
+
+  }
+
+  @Override protected int doWork() throws Exception {
+    final Configuration conf = HBaseConfiguration.create(getConf());
+    final AsyncConnection conn = ConnectionFactory.createAsyncConnection(conf).get();
+    final RegionVisualizer viz = new RegionVisualizer(conn.getAdmin());
+    System.out.println(viz.renderRegionDetails());
+    return 0;
+  }
+
+  private static final class ByteArraySerializer implements JsonSerializer<byte[]> {
+
+    @Override
+    public JsonElement serialize(byte[] src, Type typeOfSrc, JsonSerializationContext context) {
+      return new JsonPrimitive(Bytes.toString(src));
+    }
+  }
+
+  /**
+   * Simplify representation of a {@link Size} instance by converting to bytes.
+   */
+  private static final class SizeAsBytesSerializer implements JsonSerializer<Size> {
+
+    @Override
+    public JsonElement serialize(Size src, Type typeOfSrc, JsonSerializationContext context) {
+      return new JsonPrimitive(src.get(Size.Unit.BYTE));
+    }
+  }
+
+  /**
+   * "Flatten" the serialized representation of a {@link RegionDetails}.
+   */
+  private static final class RegionDetailsSerializer implements JsonSerializer<RegionDetails> {
+    @Override
+    public JsonElement serialize(RegionDetails src, Type typeOfSrc,
+      JsonSerializationContext context) {
+      final JsonObject jobj = (JsonObject) context.serialize(src.getRegionMetrics());
+      jobj.addProperty("server_name", src.getServerName().toShortString());
+      jobj.addProperty("table_name", src.getTableName().getNameAsString());
+      return jobj;
+    }
+  }
+
+  /**
+   * POJO carrying detailed information about a region for use in visualizations. Intended to be
+   * serialized to JSON and consumed from JavaScript.
+   */
+  public static final class RegionDetails {
+    private final ServerName serverName;
+    private final TableName tableName;
+    private final RegionMetrics regionMetrics;
+
+    RegionDetails(
+      final ServerName serverName,
+      final TableName tableName,
+      final RegionMetrics regionMetrics
+    ) {
+      this.serverName = serverName;
+      this.tableName = tableName;
+      this.regionMetrics = regionMetrics;
+    }
+
+    public ServerName getServerName() {
+      return serverName;
+    }
+
+    public TableName getTableName() {
+      return tableName;
+    }
+
+    public RegionMetrics getRegionMetrics() {
+      return regionMetrics;
+    }
+
+    @Override
+    public String toString() {
+      return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE)
+        .append("serverName", serverName)
+        .append("tableName", tableName)
+        .append("regionMetrics", regionMetrics)
+        .toString();
+    }
+
+    @Override
+    public boolean equals(Object o) {
+      if (this == o) {
+        return true;
+      }
+
+      if (o == null || getClass() != o.getClass()) {
+        return false;
+      }
+
+      RegionDetails that = (RegionDetails) o;
+
+      return new EqualsBuilder()
+        .append(serverName, that.serverName)
+        .append(tableName, that.tableName)
+        .append(regionMetrics, that.regionMetrics)
+        .isEquals();
+    }
+
+    @Override
+    public int hashCode() {
+      return new HashCodeBuilder(17, 37)
+        .append(serverName)
+        .append(tableName)
+        .append(regionMetrics)
+        .toHashCode();
+    }
+  }
+}
diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/http/api_v1/cluster_metrics/resource/ClusterMetricsResource.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/http/api_v1/cluster_metrics/resource/ClusterMetricsResource.java
index 5c3129c22a7d..fb7450f4c13b 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/http/api_v1/cluster_metrics/resource/ClusterMetricsResource.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/http/api_v1/cluster_metrics/resource/ClusterMetricsResource.java
@@ -38,7 +38,7 @@
  * The root object exposing a subset of {@link org.apache.hadoop.hbase.ClusterMetrics}.
  */
 @InterfaceAudience.Private
-@Path("cluster_metrics")
+@Path("admin/cluster_metrics")
 @Produces({ MediaType.APPLICATION_JSON })
 public class ClusterMetricsResource {
 
diff --git a/hbase-server/src/main/resources/hbase-webapps/static/js/vega-embed@6.15.1.min.js b/hbase-server/src/main/resources/hbase-webapps/static/js/vega-embed@6.15.1.min.js
new file mode 100644
index 000000000000..254cc0af5109
--- /dev/null
+++ b/hbase-server/src/main/resources/hbase-webapps/static/js/vega-embed@6.15.1.min.js
@@ -0,0 +1,27 @@
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r=0;r<e.length;r++)if(!e[r].test(t))return!1;if(t.prerelease.length&&!r.includePrerelease){for(let r=0;r<e.length;r++)if(B(e[r].semver),e[r].semver!==It.ANY&&e[r].semver.prerelease.length>0){const n=e[r].semver;if(n.major===t.major&&n.minor===t.minor&&n.patch===t.patch)return!0}return!1}return!0},Ot=Symbol("SemVer ANY");class At{static get ANY(){return Ot}constructor(e,t){if(t=X(t),e instanceof At){if(e.loose===!!t.loose)return e;e=e.value}B("comparator",e,t),this.options=t,this.loose=!!t.loose,this.parse(e),this.semver===Ot?this.value="":this.value=this.operator+this.semver.version,B("comp",this)}parse(e){const t=this.options.loose?Rt[Nt.COMPARATORLOOSE]:Rt[Nt.COMPARATOR],r=e.match(t);if(!r)throw new TypeError(`Invalid comparator: ${e}`);this.operator=void 0!==r[1]?r[1]:"","="===this.operator&&(this.operator=""),r[2]?this.semver=new ee(r[2],this.options.loose):this.semver=Ot}toString(){return 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diff --git a/hbase-server/src/main/resources/hbase-webapps/static/js/vega-lite@5.0.0.min.js b/hbase-server/src/main/resources/hbase-webapps/static/js/vega-lite@5.0.0.min.js
new file mode 100644
index 000000000000..adfbb71f65ba
--- /dev/null
+++ b/hbase-server/src/main/resources/hbase-webapps/static/js/vega-lite@5.0.0.min.js
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tp(e,t){return"".concat(Jt(e),"_").concat(t)}function np(e,t,n){var i;const r=tp(null!==(i=sa(n,void 0))&&void 0!==i?i:{},t);return e.getName("".concat(r,"_bins"))}function ip(e,n,i){let r,o;r=function(e){return"as"in e}(e)?t.isString(e.as)?[e.as,"".concat(e.as,"_end")]:[e.as[0],e.as[1]]:[Yo(e,{forAs:!0}),Yo(e,{binSuffix:"end",forAs:!0})];const a={...sa(n,void 0)},s=tp(a,e.field),{signal:c,extentSignal:u}=function(e,t){return{signal:e.getName("".concat(t,"_bins")),extentSignal:e.getName("".concat(t,"_extent"))}}(i,s);if(Zt(a.extent)){const e=a.extent;o=Yf(i,e.param,e),delete a.extent}return{key:s,binComponent:{bin:a,field:e.field,as:[r],...c?{signal:c}:{},...u?{extentSignal:u}:{},...o?{span:o}:{}}}}class rp extends uu{clone(){return new rp(null,d(this.bins))}constructor(e,t){super(e),this.bins=t}static makeFromEncoding(e,t){const n=t.reduceFieldDef(((e,n,i)=>{if(Ro(n)&&Qt(n.bin)){const{key:r,binComponent:o}=ip(n,n.bin,t);e[r]={...o,...e[r],...ep(t,n,i,t.config)}}return e}),{});return E(n)?null:new rp(e,n)}static makeFromTransform(e,t,n){const{key:i,binComponent:r}=ip(t,t.bin,n);return new rp(e,{[i]:r})}merge(e,t){for(const n of B(e.bins))n in this.bins?(t(e.bins[n].signal,this.bins[n].signal),this.bins[n].as=D([...this.bins[n].as,...e.bins[n].as],h)):this.bins[n]=e.bins[n];for(const t of e.children)e.removeChild(t),t.parent=this;e.remove()}producedFields(){return new Set(_(this.bins).map((e=>e.as)).flat(2))}dependentFields(){return new Set(_(this.bins).map((e=>e.field)))}hash(){return"Bin ".concat(h(this.bins))}assemble(){return _(this.bins).flatMap((e=>{const t=[],[n,...i]=e.as,{extent:r,...o}=e.bin,a={type:"bin",field:R(e.field),as:n,signal:e.signal,...Zt(r)?{extent:null}:{extent:r},...e.span?{span:{signal:"span(".concat(e.span,")")}}:{},...o};!r&&e.extentSignal&&(t.push({type:"extent",field:R(e.field),signal:e.extentSignal}),a.extent={signal:e.extentSignal}),t.push(a);for(const e of i)for(let i=0;i<2;i++)t.push({type:"formula",expr:Yo({field:n[i]},{expr:"datum"}),as:e[i]});return e.formula&&t.push({type:"formula",expr:e.formula,as:e.formulaAs}),t}))}}function op(e,t,n,i){const r=ym(i)?i.encoding[et(t)]:void 0;if(Ro(n)&&ym(i)&&_o(n,r,i.markDef,i.config))e.add(Yo(n,{})),e.add(Yo(n,{suffix:"end"})),n.bin&&da(n,t)&&e.add(Yo(n,{binSuffix:"range"}));else if(t in Pe){const n=function(e){switch(e){case ce:return"y";case le:return"y2";case ue:return"x";case fe:return"x2"}}(t);e.add(i.getName(n))}else e.add(Yo(n));return e}class ap extends uu{clone(){return new ap(null,new Set(this.dimensions),d(this.measures))}constructor(e,t,n){super(e),this.dimensions=t,this.measures=n}get groupBy(){return this.dimensions}static makeFromEncoding(e,t){let n=!1;t.forEachFieldDef((e=>{e.aggregate&&(n=!0)}));const i={},r=new Set;return n?(t.forEachFieldDef(((e,n)=>{const{aggregate:o,field:a}=e;if(o)if("count"===o){var s;null!==(s=i["*"])&&void 0!==s||(i["*"]={}),i["*"].count=new Set([Yo(e,{forAs:!0})])}else{if(Ut(o)||Ht(o)){var c;const e=Ut(o)?"argmin":"argmax",t=o[e];null!==(c=i[t])&&void 0!==c||(i[t]={}),i[t][e]=new Set([Yo({op:e,field:t},{forAs:!0})])}else{var u;null!==(u=i[a])&&void 0!==u||(i[a]={}),i[a][o]=new Set([Yo(e,{forAs:!0})])}var l;if(Nt(n)&&"unaggregated"===t.scaleDomain(n))null!==(l=i[a])&&void 0!==l||(i[a]={}),i[a].min=new Set([Yo({field:a,aggregate:"min"},{forAs:!0})]),i[a].max=new Set([Yo({field:a,aggregate:"max"},{forAs:!0})])}else op(r,n,e,t)})),r.size+B(i).length===0?null:new ap(e,r,i)):null}static makeFromTransform(e,t){const n=new Set,i={};for(const e of t.aggregate){const{op:t,field:n,as:a}=e;var r,o;if(t)if("count"===t)null!==(r=i["*"])&&void 0!==r||(i["*"]={}),i["*"].count=new Set([a||Yo(e,{forAs:!0})]);else null!==(o=i[n])&&void 0!==o||(i[n]={}),i[n][t]=new Set([a||Yo(e,{forAs:!0})])}for(const e of null!==(a=t.groupby)&&void 0!==a?a:[]){var a;n.add(e)}return n.size+B(i).length===0?null:new ap(e,n,i)}merge(e){return F(this.dimensions,e.dimensions)?(function(e,t){for(const i of B(t)){const r=t[i];for(const t of B(r)){var n;i in e?e[i][t]=new Set([...null!==(n=e[i][t])&&void 0!==n?n:[],...r[t]]):e[i]={[t]:r[t]}}}}(this.measures,e.measures),!0):(function(...e){ai.debug(...e)}("different dimensions, cannot merge"),!1)}addDimensions(e){e.forEach(this.dimensions.add,this.dimensions)}dependentFields(){return new Set([...this.dimensions,...B(this.measures)])}producedFields(){const e=new Set;for(const t of B(this.measures))for(const n of B(this.measures[t])){const i=this.measures[t][n];0===i.size?e.add("".concat(n,"_").concat(t)):i.forEach(e.add,e)}return e}hash(){return"Aggregate ".concat(h({dimensions:this.dimensions,measures:this.measures}))}assemble(){const e=[],t=[],n=[];for(const i of B(this.measures))for(const r of B(this.measures[i]))for(const o of this.measures[i][r])n.push(o),e.push(r),t.push("*"===i?null:R(i));return{type:"aggregate",groupby:[...this.dimensions].map(R),ops:e,fields:t,as:n}}}class sp extends uu{constructor(e,n,i,r){super(e),this.model=n,this.name=i,this.data=r,En(this,"column",void 0),En(this,"row",void 0),En(this,"facet",void 0),En(this,"childModel",void 0);for(const e of Le){const i=n.facet[e];if(i){const{bin:r,sort:o}=i;this[e]={name:n.getName("".concat(e,"_domain")),fields:[Yo(i),...Qt(r)?[Yo(i,{binSuffix:"end"})]:[]],...wo(o)?{sortField:o}:t.isArray(o)?{sortIndexField:cd(i,e)}:{}}}}this.childModel=n.child}hash(){let e="Facet";for(const t of Le)this[t]&&(e+=" ".concat(t.charAt(0),":").concat(h(this[t])));return e}get fields(){const e=[];for(const n of Le){var t;null!==(t=this[n])&&void 0!==t&&t.fields&&e.push(...this[n].fields)}return e}dependentFields(){const e=new Set(this.fields);for(const t of Le)this[t]&&(this[t].sortField&&e.add(this[t].sortField.field),this[t].sortIndexField&&e.add(this[t].sortIndexField));return e}producedFields(){return new Set}getSource(){return this.name}getChildIndependentFieldsWithStep(){const e={};for(const t of vt){const n=this.childModel.component.scales[t];if(n&&!n.merged){const i=n.get("type"),r=n.get("range");if(lr(i)&&sn(r)){const n=$p(Kp(this.childModel,t));n?e[t]=n:si(jn(t))}}}return e}assembleRowColumnHeaderData(e,t,n){const i={row:"y",column:"x",facet:void 0}[e],r=[],o=[],a=[];i&&n&&n[i]&&(t?(r.push("distinct_".concat(n[i])),o.push("max")):(r.push(n[i]),o.push("distinct")),a.push("distinct_".concat(n[i])));const{sortField:s,sortIndexField:c}=this[e];if(s){const{op:e=vo,field:t}=s;r.push(t),o.push(e),a.push(Yo(s,{forAs:!0}))}else c&&(r.push(c),o.push("max"),a.push(c));return{name:this[e].name,source:null!=t?t:this.data,transform:[{type:"aggregate",groupby:this[e].fields,...r.length?{fields:r,ops:o,as:a}:{}}]}}assembleFacetHeaderData(e){const{columns:t}=this.model.layout,{layoutHeaders:n}=this.model.component,i=[],r={};for(const e of dd){for(const t of pd){var o;const i=null!==(o=n[e]&&n[e][t])&&void 0!==o?o:[];for(const t of i){var a;if((null===(a=t.axes)||void 0===a?void 0:a.length)>0){r[e]=!0;break}}}if(r[e]){const n='length(data("'.concat(this.facet.name,'"))'),r="row"===e?t?{signal:"ceil(".concat(n," / ").concat(t,")")}:1:t?{signal:"min(".concat(n,", ").concat(t,")")}:{signal:n};i.push({name:"".concat(this.facet.name,"_").concat(e),transform:[{type:"sequence",start:0,stop:r}]})}}const{row:s,column:c}=r;return(s||c)&&i.unshift(this.assembleRowColumnHeaderData("facet",null,e)),i}assemble(){const e=[];let t=null;const n=this.getChildIndependentFieldsWithStep(),{column:i,row:r,facet:o}=this;if(i&&r&&(n.x||n.y)){var a,s;t="cross_".concat(this.column.name,"_").concat(this.row.name);const i=[].concat(null!==(a=n.x)&&void 0!==a?a:[],null!==(s=n.y)&&void 0!==s?s:[]),r=i.map((()=>"distinct"));e.push({name:t,source:this.data,transform:[{type:"aggregate",groupby:this.fields,fields:i,ops:r}]})}for(const i of[K,$])this[i]&&e.push(this.assembleRowColumnHeaderData(i,t,n));if(o){const t=this.assembleFacetHeaderData(n);t&&e.push(...t)}return e}}function cp(e){return"'"===e[0]&&"'"===e[e.length-1]||'"'===e[0]&&'"'===e[e.length-1]?e.slice(1,-1):e}function up(e){const n={};return u(e.filter,(e=>{if(zi(e)){let r=null;if(Fi(e))r=pn(e.equal);else if(Ci(e))r=pn(e.lte);else if(ki(e))r=pn(e.lt);else if(Si(e))r=pn(e.gt);else if(Ei(e))r=pn(e.gte);else if(Bi(e))r=e.range[0];else if(_i(e)){var i;r=(null!==(i=e.oneOf)&&void 0!==i?i:e.in)[0]}r&&(ci(r)?n[e.field]="date":t.isNumber(r)?n[e.field]="number":t.isString(r)&&(n[e.field]="string")),e.timeUnit&&(n[e.field]="date")}})),n}function lp(e){const n={};function i(e){var i;ua(e)?n[e.field]="date":"quantitative"===e.type&&(i=e.aggregate,t.isString(i)&&y(["min","max"],i))?n[e.field]="number":H(e.field)>1?e.field in n||(n[e.field]="flatten"):Uo(e)&&wo(e.sort)&&H(e.sort.field)>1&&(e.sort.field in n||(n[e.sort.field]="flatten"))}if((ym(e)||bm(e))&&e.forEachFieldDef(((t,n)=>{if(Ro(t))i(t);else{const r=Ke(n),o=e.fieldDef(r);i({...t,type:o.type})}})),ym(e)){const{mark:t,markDef:i,encoding:r}=e;if(Rr(t)&&!e.encoding.order){const e=r["horizontal"===i.orient?"y":"x"];No(e)&&"quantitative"===e.type&&!(e.field in n)&&(n[e.field]="number")}}return n}class fp extends uu{clone(){return new fp(null,d(this._parse))}constructor(e,t){super(e),En(this,"_parse",void 0),this._parse=t}hash(){return"Parse ".concat(h(this._parse))}static makeExplicit(e,t,n){let i={};const r=t.data;return!Hc(r)&&r&&r.format&&r.format.parse&&(i=r.format.parse),this.makeWithAncestors(e,i,{},n)}static makeWithAncestors(e,t,n,i){for(const e of B(n)){const t=i.getWithExplicit(e);void 0!==t.value&&(t.explicit||t.value===n[e]||"derived"===t.value||"flatten"===n[e]?delete n[e]:si(Wn(e,n[e],t.value)))}for(const e of B(t)){const n=i.get(e);void 0!==n&&(n===t[e]?delete t[e]:si(Wn(e,t[e],n)))}const r=new Pc(t,n);i.copyAll(r);const o={};for(const e of B(r.combine())){const t=r.get(e);null!==t&&(o[e]=t)}return 0===B(o).length||i.parseNothing?null:new fp(e,o)}get parse(){return this._parse}merge(e){this._parse={...this._parse,...e.parse},e.remove()}assembleFormatParse(){const e={};for(const t of B(this._parse)){const n=this._parse[t];1===H(t)&&(e[t]=n)}return e}producedFields(){return new Set(B(this._parse))}dependentFields(){return new Set(B(this._parse))}assembleTransforms(e=!1){return B(this._parse).filter((t=>!e||H(t)>1)).map((e=>{const t=function(e,t){const n=T(e);if("number"===t)return"toNumber(".concat(n,")");if("boolean"===t)return"toBoolean(".concat(n,")");if("string"===t)return"toString(".concat(n,")");if("date"===t)return"toDate(".concat(n,")");if("flatten"===t)return n;if(t.startsWith("date:")){const e=cp(t.slice(5,t.length));return"timeParse(".concat(n,",'").concat(e,"')")}if(t.startsWith("utc:")){const e=cp(t.slice(4,t.length));return"utcParse(".concat(n,",'").concat(e,"')")}return si('Unrecognized parse "'.concat(t,'".')),null}(e,this._parse[e]);if(!t)return null;return{type:"formula",expr:t,as:U(e)}})).filter((e=>null!==e))}}class dp extends uu{clone(){return new dp(null)}constructor(e){super(e)}dependentFields(){return new Set}producedFields(){return new Set([as])}hash(){return"Identifier"}assemble(){return{type:"identifier",as:as}}}class pp extends uu{clone(){return new pp(null,this.params)}constructor(e,t){super(e),this.params=t}dependentFields(){return new Set}producedFields(){}hash(){return"Graticule ".concat(h(this.params))}assemble(){return{type:"graticule",...!0===this.params?{}:this.params}}}class mp extends uu{clone(){return new mp(null,this.params)}constructor(e,t){super(e),this.params=t}dependentFields(){return new Set}producedFields(){var e;return new Set([null!==(e=this.params.as)&&void 0!==e?e:"data"])}hash(){return"Hash ".concat(h(this.params))}assemble(){return{type:"sequence",...this.params}}}class gp extends uu{constructor(e){var t;let n;if(super(null),En(this,"_data",void 0),En(this,"_name",void 0),En(this,"_generator",void 0),null!==(t=e)&&void 0!==t||(e={name:"source"}),Hc(e)||(n=e.format?{...m(e.format,["parse"])}:{}),Wc(e))this._data={values:e.values};else if(Rc(e)){if(this._data={url:e.url},!n.type){let t=/(?:\.([^.]+))?$/.exec(e.url)[1];y(["json","csv","tsv","dsv","topojson"],t)||(t="json"),n.type=t}}else Vc(e)?this._data={values:[{type:"Sphere"}]}:(Uc(e)||Hc(e))&&(this._data={});this._generator=Hc(e),e.name&&(this._name=e.name),n&&!E(n)&&(this._data.format=n)}dependentFields(){return new Set}producedFields(){}get data(){return this._data}hasName(){return!!this._name}get isGenerator(){return this._generator}get dataName(){return this._name}set dataName(e){this._name=e}set parent(e){throw new Error("Source nodes have to be roots.")}remove(){throw new Error("Source nodes are roots and cannot be removed.")}hash(){throw new Error("Cannot hash sources")}assemble(){return{name:this._name,...this._data,transform:[]}}}function hp(e){return e instanceof gp||e instanceof pp||e instanceof mp}var vp=new WeakMap;class yp{constructor(){vp.set(this,{writable:!0,value:void 0}),Bn(this,vp,!1)}setModified(){Bn(this,vp,!0)}get modifiedFlag(){return function(e,t){var n=t.get(e);if(!n)throw new TypeError("attempted to get private field on non-instance");return n.get?n.get.call(e):n.value}(this,vp)}}class bp extends yp{getNodeDepths(e,t,n){n.set(e,t);for(const i of e.children)this.getNodeDepths(i,t+1,n);return n}optimize(e){const t=[...this.getNodeDepths(e,0,new Map).entries()].sort(((e,t)=>t[1]-e[1]));for(const e of t)this.run(e[0]);return this.modifiedFlag}}class xp extends yp{optimize(e){this.run(e);for(const t of e.children)this.optimize(t);return this.modifiedFlag}}class wp extends xp{mergeNodes(e,t){const n=t.shift();for(const i of t)e.removeChild(i),i.parent=n,i.remove()}run(e){const t=e.children.map((e=>e.hash())),n={};for(let i=0;i<t.length;i++)void 0===n[t[i]]?n[t[i]]=[e.children[i]]:n[t[i]].push(e.children[i]);for(const t of B(n))n[t].length>1&&(this.setModified(),this.mergeNodes(e,n[t]))}}class Ap extends xp{constructor(e){super(),En(this,"requiresSelectionId",void 0),this.requiresSelectionId=e&&wl(e)}run(e){e instanceof dp&&(this.requiresSelectionId&&(hp(e.parent)||e.parent instanceof ap||e.parent instanceof fp)||(this.setModified(),e.remove()))}}class Dp extends yp{optimize(e){return this.run(e,new Set),this.modifiedFlag}run(e,t){let n=new Set;e instanceof fu&&(n=e.producedFields(),k(n,t)&&(this.setModified(),e.removeFormulas(t),0===e.producedFields.length&&e.remove()));for(const i of e.children)this.run(i,new Set([...t,...n]))}}class Fp extends xp{constructor(){super()}run(e){e instanceof lu&&!e.isRequired()&&(this.setModified(),e.remove())}}class kp extends bp{run(e){if(!(hp(e)||e.numChildren()>1))for(const t of e.children)if(t instanceof fp)if(e instanceof fp)this.setModified(),e.merge(t);else{if(S(e.producedFields(),t.dependentFields()))continue;this.setModified(),t.swapWithParent()}}}class Cp extends bp{run(e){const t=[...e.children],n=e.children.filter((e=>e instanceof fp));if(e.numChildren()>1&&n.length>=1){const i={},r=new Set;for(const e of n){const t=e.parse;for(const e of B(t))e in i?i[e]!==t[e]&&r.add(e):i[e]=t[e]}for(const e of r)delete i[e];if(!E(i)){this.setModified();const n=new fp(e,i);for(const r of t){if(r instanceof fp)for(const e of B(i))delete r.parse[e];e.removeChild(r),r.parent=n,r instanceof fp&&0===B(r.parse).length&&r.remove()}}}}}class Sp extends bp{run(e){e instanceof lu||e.numChildren()>0||e instanceof sp||e instanceof gp||(this.setModified(),e.remove())}}class Ep extends bp{run(e){const t=e.children.filter((e=>e instanceof fu)),n=t.pop();for(const e of t)this.setModified(),n.merge(e)}}class Bp extends bp{run(e){const t=e.children.filter((e=>e instanceof ap)),n={};for(const e of t){const t=h(e.groupBy);t in n||(n[t]=[]),n[t].push(e)}for(const t of B(n)){const i=n[t];if(i.length>1){const t=i.pop();for(const n of i)t.merge(n)&&(e.removeChild(n),n.parent=t,n.remove(),this.setModified())}}}}class _p extends bp{constructor(e){super(),this.model=e}run(e){const t=!(hp(e)||e instanceof Vf||e instanceof fp||e instanceof dp),n=[],i=[];for(const r of e.children)r instanceof rp&&(t&&!S(e.producedFields(),r.dependentFields())?n.push(r):i.push(r));if(n.length>0){const t=n.pop();for(const e of n)t.merge(e,this.model.renameSignal.bind(this.model));this.setModified(),e instanceof rp?e.merge(t,this.model.renameSignal.bind(this.model)):t.swapWithParent()}if(i.length>1){const e=i.pop();for(const t of i)e.merge(t,this.model.renameSignal.bind(this.model));this.setModified()}}}class zp extends bp{run(e){const t=[...e.children];if(!b(t,(e=>e instanceof lu))||e.numChildren()<=1)return;const n=[];let i;for(const r of t)if(r instanceof lu){let t=r;for(;1===t.numChildren();){const[e]=t.children;if(!(e instanceof lu))break;t=e}n.push(...t.children),i?(e.removeChild(r),r.parent=i.parent,i.parent.removeChild(i),i.parent=t,this.setModified()):i=t}else n.push(r);if(n.length){this.setModified();for(const e of n)e.parent.removeChild(e),e.parent=i}}}class Op extends uu{clone(){return new Op(null,d(this.transform))}constructor(e,t){super(e),this.transform=t}addDimensions(e){this.transform.groupby=D(this.transform.groupby.concat(e),(e=>e))}dependentFields(){const e=new Set;return this.transform.groupby&&this.transform.groupby.forEach(e.add,e),this.transform.joinaggregate.map((e=>e.field)).filter((e=>void 0!==e)).forEach(e.add,e),e}producedFields(){return new Set(this.transform.joinaggregate.map(this.getDefaultName))}getDefaultName(e){var t;return null!==(t=e.as)&&void 0!==t?t:Yo(e)}hash(){return"JoinAggregateTransform ".concat(h(this.transform))}assemble(){const e=[],t=[],n=[];for(const i of this.transform.joinaggregate)t.push(i.op),n.push(this.getDefaultName(i)),e.push(void 0===i.field?null:i.field);const i=this.transform.groupby;return{type:"joinaggregate",as:n,ops:t,fields:e,...void 0!==i?{groupby:i}:{}}}}class Pp extends uu{clone(){return new Pp(null,d(this._stack))}constructor(e,t){super(e),En(this,"_stack",void 0),this._stack=t}static makeFromTransform(e,n){const{stack:i,groupby:r,as:o,offset:a="zero"}=n,s=[],c=[];if(void 0!==n.sort)for(const e of n.sort)s.push(e.field),c.push(I(e.order,"ascending"));const u={field:s,order:c};let l;return l=function(e){return t.isArray(e)&&e.every((e=>t.isString(e)))&&e.length>1}(o)?o:t.isString(o)?[o,"".concat(o,"_end")]:["".concat(n.stack,"_start"),"".concat(n.stack,"_end")],new Pp(e,{stackField:i,groupby:r,offset:a,sort:u,facetby:[],as:l})}static makeFromEncoding(e,n){const i=n.stack,{encoding:r}=n;if(!i)return null;const{groupbyChannel:o,fieldChannel:a,offset:s,impute:c}=i;let u;if(o){u=na(r[o])}const l=function(e){return e.stack.stackBy.reduce(((e,t)=>{const n=Yo(t.fieldDef);return n&&e.push(n),e}),[])}(n),f=n.encoding.order;let d;return d=t.isArray(f)||No(f)?Fn(f):l.reduce(((e,t)=>(e.field.push(t),e.order.push("y"===a?"descending":"ascending"),e)),{field:[],order:[]}),new Pp(e,{dimensionFieldDef:u,stackField:n.vgField(a),facetby:[],stackby:l,sort:d,offset:s,impute:c,as:[n.vgField(a,{suffix:"start",forAs:!0}),n.vgField(a,{suffix:"end",forAs:!0})]})}get stack(){return this._stack}addDimensions(e){this._stack.facetby.push(...e)}dependentFields(){const e=new Set;return e.add(this._stack.stackField),this.getGroupbyFields().forEach(e.add,e),this._stack.facetby.forEach(e.add,e),this._stack.sort.field.forEach(e.add,e),e}producedFields(){return new Set(this._stack.as)}hash(){return"Stack ".concat(h(this._stack))}getGroupbyFields(){const{dimensionFieldDef:e,impute:t,groupby:n}=this._stack;return e?e.bin?t?[Yo(e,{binSuffix:"mid"})]:[Yo(e,{}),Yo(e,{binSuffix:"end"})]:[Yo(e)]:null!=n?n:[]}assemble(){const e=[],{facetby:t,dimensionFieldDef:n,stackField:i,stackby:r,sort:o,offset:a,impute:s,as:c}=this._stack;if(s&&n){const{bandPosition:o=.5,bin:a}=n;a&&e.push({type:"formula",expr:"".concat(o,"*")+Yo(n,{expr:"datum"})+"+".concat(1-o,"*")+Yo(n,{expr:"datum",binSuffix:"end"}),as:Yo(n,{binSuffix:"mid",forAs:!0})}),e.push({type:"impute",field:i,groupby:[...r,...t],key:Yo(n,{binSuffix:"mid"}),method:"value",value:0})}return e.push({type:"stack",groupby:[...this.getGroupbyFields(),...t],field:i,sort:o,as:c,offset:a}),e}}class Np extends uu{clone(){return new Np(null,d(this.transform))}constructor(e,t){super(e),this.transform=t}addDimensions(e){this.transform.groupby=D(this.transform.groupby.concat(e),(e=>e))}dependentFields(){var e,t;const n=new Set;return(null!==(e=this.transform.groupby)&&void 0!==e?e:[]).forEach(n.add,n),(null!==(t=this.transform.sort)&&void 0!==t?t:[]).forEach((e=>n.add(e.field))),this.transform.window.map((e=>e.field)).filter((e=>void 0!==e)).forEach(n.add,n),n}producedFields(){return new Set(this.transform.window.map(this.getDefaultName))}getDefaultName(e){var t;return null!==(t=e.as)&&void 0!==t?t:Yo(e)}hash(){return"WindowTransform ".concat(h(this.transform))}assemble(){const e=[],t=[],n=[],i=[];for(const r of this.transform.window)t.push(r.op),n.push(this.getDefaultName(r)),i.push(void 0===r.param?null:r.param),e.push(void 0===r.field?null:r.field);const r=this.transform.frame,o=this.transform.groupby;if(r&&null===r[0]&&null===r[1]&&t.every((e=>It(e))))return{type:"joinaggregate",as:n,ops:t,fields:e,...void 0!==o?{groupby:o}:{}};const a=[],s=[];if(void 0!==this.transform.sort)for(const e of this.transform.sort){var c;a.push(e.field),s.push(null!==(c=e.order)&&void 0!==c?c:"ascending")}const u={field:a,order:s},l=this.transform.ignorePeers;return{type:"window",params:i,as:n,ops:t,fields:e,sort:u,...void 0!==l?{ignorePeers:l}:{},...void 0!==o?{groupby:o}:{},...void 0!==r?{frame:r}:{}}}}function jp(e){if(e instanceof sp)if(1!==e.numChildren()||e.children[0]instanceof lu){const n=e.model.component.data.main;Mp(n);const i=(t=e,function e(n){if(!(n instanceof sp)){const i=n.clone();if(i instanceof lu){const e=Tp+i.getSource();i.setSource(e),t.model.component.data.outputNodes[e]=i}else(i instanceof ap||i instanceof Pp||i instanceof Np||i instanceof Op)&&i.addDimensions(t.fields);for(const t of n.children.flatMap(e))t.parent=i;return[i]}return n.children.flatMap(e)}),r=e.children.map(i).flat();for(const e of r)e.parent=n}else{const t=e.children[0];(t instanceof ap||t instanceof Pp||t instanceof Np||t instanceof Op)&&t.addDimensions(e.fields),t.swapWithParent(),jp(e)}else e.children.map(jp);var t}function Mp(e){if(e instanceof lu&&e.type===Yc.Main&&1===e.numChildren()){const t=e.children[0];t instanceof sp||(t.swapWithParent(),Mp(e))}}const Tp="scale_";function Lp(e){for(const t of e){for(const e of t.children)if(e.parent!==t)return!1;if(!Lp(t.children))return!1}return!0}function qp(e,t){let n=!1;for(const i of t)n=e.optimize(i)||n;return n}function Rp(e,t,n){let i=e.sources,r=!1;return r=qp(new Fp,i)||r,r=qp(new Ap(t),i)||r,i=i.filter((e=>e.numChildren()>0)),r=qp(new Sp,i)||r,i=i.filter((e=>e.numChildren()>0)),n||(r=qp(new kp,i)||r,r=qp(new _p(t),i)||r,r=qp(new Dp,i)||r,r=qp(new Cp,i)||r,r=qp(new Bp,i)||r,r=qp(new Ep,i)||r,r=qp(new wp,i)||r,r=qp(new zp,i)||r),e.sources=i,r}class Wp{constructor(e){En(this,"signal",void 0),Object.defineProperty(this,"signal",{enumerable:!0,get:e})}static fromName(e,t){return new Wp((()=>e(t)))}}function Up(e){ym(e)?function(e){const t=e.component.scales;for(const n of B(t)){const i=Hp(e,n);if(t[n].setWithExplicit("domains",i),Yp(e,n),e.component.data.isFaceted){let t=e;for(;!bm(t)&&t.parent;)t=t.parent;if("shared"===t.component.resolve.scale[n])for(const e of i.value)cn(e)&&(e.data=Tp+e.data.replace(Tp,""))}}}(e):function(e){for(const t of e.children)Up(t);const t=e.component.scales;for(const n of B(t)){let i,r=null;for(const t of e.children){const e=t.component.scales[n];if(e){i=void 0===i?e.getWithExplicit("domains"):Lc(i,e.getWithExplicit("domains"),"domains","scale",Jp);const t=e.get("selectionExtent");r&&t&&r.param!==t.param&&si(qn),r=t}}t[n].setWithExplicit("domains",i),r&&t[n].set("selectionExtent",r,!0)}}(e)}function Hp(e,t){const n=e.getScaleComponent(t).get("type"),{encoding:i}=e,r=function(e,t,n,i){if("unaggregated"===e){const{valid:e,reason:i}=Xp(t,n);if(!e)return void si(i)}else if(void 0===e&&i.useUnaggregatedDomain){const{valid:e}=Xp(t,n);if(e)return"unaggregated"}return e}(e.scaleDomain(t),e.typedFieldDef(t),n,e.config.scale);return r!==e.scaleDomain(t)&&(e.specifiedScales[t]={...e.specifiedScales[t],domain:r}),"x"===t&&ia(i.x2)?ia(i.x)?Lc(Vp(n,r,e,"x"),Vp(n,r,e,"x2"),"domain","scale",Jp):Vp(n,r,e,"x2"):"y"===t&&ia(i.y2)?ia(i.y)?Lc(Vp(n,r,e,"y"),Vp(n,r,e,"y2"),"domain","scale",Jp):Vp(n,r,e,"y2"):Vp(n,r,e,t)}function Ip(e,t,n){var i;const r=null===(i=Di(n))||void 0===i?void 0:i.unit;return"temporal"===t||r?function(e,t,n){return e.map((e=>{const i=la(e,{timeUnit:n,type:t});return{signal:"{data: ".concat(i,"}")}}))}(e,t,r):[e]}function Vp(e,n,i,r){const{encoding:o}=i,a=ia(o[r]),{type:s}=a,c=a.timeUnit;if(function(e){return e&&e.unionWith}(n)){const t=Vp(e,void 0,i,r),o=Ip(n.unionWith,s,c);return Nc([...t.value,...o])}if(an(n))return Nc([n]);if(n&&"unaggregated"!==n&&!mr(n))return Nc(Ip(n,s,c));const u=i.stack;if(u&&r===u.fieldChannel){if("normalize"===u.offset)return jc([[0,1]]);const e=i.requestDataName(Yc.Main);return 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extends Pc{constructor(e,t){super({},{name:e}),En(this,"merged",!1),this.setWithExplicit("type",t)}domainDefinitelyIncludesZero(){return!1!==this.get("zero")||b(this.get("domains"),(e=>t.isArray(e)&&2===e.length&&e[0]<=0&&e[1]>=0))}}const nm=["range","scheme"];function im(e){return"x"===e?"width":"y"===e?"height":void 0}function rm(e,n){const i=e.fieldDef(n);if(null!=i&&i.bin){const{bin:r,field:o}=i,a=im(n),s=e.getName(a);if(t.isObject(r)&&r.binned&&void 0!==r.step)return new Wp((()=>{const t=e.scaleName(n),i='(domain("'.concat(t,'")[1] - domain("').concat(t,'")[0]) / ').concat(r.step);return"".concat(e.getSignalName(s)," / (").concat(i,")")}));if(Qt(r)){const t=np(e,o,r);return new Wp((()=>{const n=e.getSignalName(t),i="(".concat(n,".stop - ").concat(n,".start) / ").concat(n,".step");return"".concat(e.getSignalName(s)," / (").concat(i,")")}))}}}function om(e,n){const i=n.specifiedScales[e],{size:r}=n,o=n.getScaleComponent(e).get("type");for(const r of nm)if(void 0!==i[r]){const a=Dr(o,r),s=Fr(e,r);if(a)if(s)si(s);else switch(r){case"range":{const r=i.range;if(t.isArray(r)){if(yt(e))return Nc(r.map((e=>{if("width"===e||"height"===e){const t=n.getName(e),i=n.getSignalName.bind(n);return Wp.fromName(i,t)}return e})))}else if(t.isObject(r))return Nc({data:n.requestDataName(Yc.Main),field:r.field,sort:{op:"min",field:n.vgField(e)}});return Nc(r)}case"scheme":return Nc(am(i[r]))}else si(Zn(o,r,e))}if(e===ee||e===te){const t=e===ee?"width":"height",n=r[t];if(vs(n)){if(lr(o))return Nc({step:n.step});si(ei(t))}}const{rangeMin:a,rangeMax:s}=i,c=function(e,n){const{size:i,config:r,mark:o,encoding:a}=n,s=n.getSignalName.bind(n),{type:c}=ia(a[e]),u=n.getScaleComponent(e).get("type"),{domain:l,domainMid:f}=n.specifiedScales[e];switch(e){case ee:case te:{if(y(["point","band"],u))if(e!==ee||i.width){if(e===te&&!i.height){const e=As(r.view,"height");if(vs(e))return e}}else{const e=As(r.view,"width");if(vs(e))return e}const t=im(e),o=n.getName(t);return 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0),En(this,"children",[]),En(this,"correctDataNames",(e=>(e.from&&e.from.data&&(e.from.data=this.lookupDataSource(e.from.data)),e.from&&e.from.facet&&e.from.facet.data&&(e.from.facet.data=this.lookupDataSource(e.from.facet.data)),e))),this.parent=i,this.config=o,this.view=nn(s),this.name=null!==(c=e.name)&&void 0!==c?c:r,this.title=on(e.title)?{text:e.title}:e.title?nn(e.title):void 0,this.scaleNameMap=i?i.scaleNameMap:new vm,this.projectionNameMap=i?i.projectionNameMap:new vm,this.signalNameMap=i?i.signalNameMap:new vm,this.data=e.data,this.description=e.description,this.transforms=(null!==(u=e.transform)&&void 0!==u?u:[]).map((e=>rc(e)?{filter:l(e.filter,ji)}:e)),this.layout="layer"===n||"unit"===n?{}:function(e,n,i){const r=i[n],o={},{spacing:a,columns:s}=r;void 0!==a&&(o.spacing=a),void 0!==s&&(ko(e)&&!Do(e.facet)||ds(e))&&(o.columns=s),ps(e)&&(o.columns=1);for(const n of bs)if(void 0!==e[n])if("spacing"===n){var c,u;const i=e[n];o[n]=t.isNumber(i)?i:{row:null!==(c=i.row)&&void 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0:t}assembleLayout(){if(!this.layout)return;const{spacing:e,...t}=this.layout,{component:n,config:i}=this,r=function(e,t){const n={};for(const i of Le){const r=e[i];if(null!=r&&r.facetFieldDef){const{titleAnchor:e,titleOrient:o}=fd(["titleAnchor","titleOrient"],r.facetFieldDef.header,t,i),a=ud(i,o),s=Ad(e,a);void 0!==s&&(n[a]=s)}}return E(n)?void 0:n}(n.layoutHeaders,i);return{padding:e,...this.assembleDefaultLayout(),...t,...r?{titleBand:r}:{}}}assembleDefaultLayout(){return{}}assembleHeaderMarks(){const{layoutHeaders:e}=this.component;let t=[];for(const n of Le)e[n].title&&t.push(md(this,n));for(const e of dd)t=t.concat(vd(this,e));return t}assembleAxes(){return function(e,t){const{x:n=[],y:i=[]}=e;return[...n.map((e=>Qf(e,"grid",t))),...i.map((e=>Qf(e,"grid",t))),...n.map((e=>Qf(e,"main",t))),...i.map((e=>Qf(e,"main",t)))].filter((e=>e))}(this.component.axes,this.config)}assembleLegends(){return Xd(this)}assembleProjections(){return Jd(this)}assembleTitle(){var e;const{encoding:t,...n}=null!==(e=this.title)&&void 0!==e?e:{},i={...rn(this.config.title).nonMark,...n,...t?{encode:{update:t}}:{}};if(i.text){var r,o;if(y(["unit","layer"],this.type)){if(y(["middle",void 0],i.anchor))null!==(r=i.frame)&&void 0!==r||(i.frame="group")}else null!==(o=i.anchor)&&void 0!==o||(i.anchor="start");return E(i)?void 0:i}}assembleGroup(e=[]){const t={};(e=e.concat(this.assembleSignals())).length>0&&(t.signals=e);const n=this.assembleLayout();n&&(t.layout=n),t.marks=[].concat(this.assembleHeaderMarks(),this.assembleMarks());const i=!this.parent||bm(this.parent)?Zp(this):[];i.length>0&&(t.scales=i);const r=this.assembleAxes();r.length>0&&(t.axes=r);const o=this.assembleLegends();return o.length>0&&(t.legends=o),t}getName(e){return P((this.name?"".concat(this.name,"_"):"")+e)}getDataName(e){return this.getName(Yc[e].toLowerCase())}requestDataName(e){const t=this.getDataName(e),n=this.component.data.outputNodeRefCounts;return n[t]=(n[t]||0)+1,t}getSizeSignalRef(e){if(bm(this.parent)){const t=wt(Ed(e)),n=this.component.scales[t];if(n&&!n.merged){const e=n.get("type"),i=n.get("range");if(lr(e)&&sn(i)){const e=n.get("name"),i=$p(Kp(this,t));if(i){return{signal:Sd(e,n,Yo({aggregate:"distinct",field:i},{expr:"datum"}))}}return si(jn(t)),null}}}return{signal:this.signalNameMap.get(this.getName(e))}}lookupDataSource(e){const t=this.component.data.outputNodes[e];return t?t.getSource():e}getSignalName(e){return this.signalNameMap.get(e)}renameSignal(e,t){this.signalNameMap.rename(e,t)}renameScale(e,t){this.scaleNameMap.rename(e,t)}renameProjection(e,t){this.projectionNameMap.rename(e,t)}scaleName(e,t){return t?this.getName(e):Je(e)&&Nt(e)&&this.component.scales[e]||this.scaleNameMap.has(this.getName(e))?this.scaleNameMap.get(this.getName(e)):void 0}projectionName(e){return e?this.getName("projection"):this.component.projection&&!this.component.projection.merged||this.projectionNameMap.has(this.getName("projection"))?this.projectionNameMap.get(this.getName("projection")):void 0}getScaleComponent(e){if(!this.component.scales)throw new Error("getScaleComponent cannot be called before parseScale(). Make sure you have called parseScale or use parseUnitModelWithScale().");const t=this.component.scales[e];return t&&!t.merged?t:this.parent?this.parent.getScaleComponent(e):void 0}getSelectionComponent(e,t){let n=this.component.selection[e];if(!n&&this.parent&&(n=this.parent.getSelectionComponent(e,t)),!n)throw new Error(function(e){return'Cannot find a selection named "'.concat(e,'".')}(t));return n}hasAxisOrientSignalRef(){var e,t;return(null===(e=this.component.axes.x)||void 0===e?void 0:e.some((e=>e.hasOrientSignalRef())))||(null===(t=this.component.axes.y)||void 0===t?void 0:t.some((e=>e.hasOrientSignalRef())))}}class Dm extends Am{vgField(e,t={}){const n=this.fieldDef(e);if(n)return Yo(n,t)}reduceFieldDef(e,n){return function(e,n,i,r){return e?B(e).reduce(((i,o)=>{const a=e[o];return t.isArray(a)?a.reduce(((e,t)=>n.call(r,e,t,o)),i):n.call(r,i,a,o)}),i):i}(this.getMapping(),((t,n,i)=>{const r=na(n);return r?e(t,r,i):t}),n)}forEachFieldDef(e,t){Ea(this.getMapping(),((t,n)=>{const i=na(t);i&&e(i,n)}),t)}}class Fm extends uu{clone(){return new Fm(null,d(this.transform))}constructor(e,t){var n,i,r;super(e),this.transform=t,this.transform=d(t);const o=null!==(n=this.transform.as)&&void 0!==n?n:[void 0,void 0];this.transform.as=[null!==(i=o[0])&&void 0!==i?i:"value",null!==(r=o[1])&&void 0!==r?r:"density"]}dependentFields(){var e;return new Set([this.transform.density,...null!==(e=this.transform.groupby)&&void 0!==e?e:[]])}producedFields(){return new Set(this.transform.as)}hash(){return"DensityTransform ".concat(h(this.transform))}assemble(){const{density:e,...t}=this.transform;return{type:"kde",field:e,...t}}}class km extends uu{clone(){return new km(null,{...this.filter})}constructor(e,t){super(e),this.filter=t}static make(e,t){const{config:n,mark:i,markDef:r}=t;if("filter"!==xn("invalid",r,n))return null;const o=t.reduceFieldDef(((e,n,r)=>{const o=Nt(r)&&t.getScaleComponent(r);if(o){fr(o.get("type"))&&"count"!==n.aggregate&&!Rr(i)&&(e[n.field]=n)}return e}),{});return B(o).length?new km(e,o):null}dependentFields(){return new Set(B(this.filter))}producedFields(){return new Set}hash(){return"FilterInvalid ".concat(h(this.filter))}assemble(){const e=B(this.filter).reduce(((e,t)=>{const n=this.filter[t],i=Yo(n,{expr:"datum"});return null!==n&&("temporal"===n.type?e.push("(isDate(".concat(i,") || (isValid(").concat(i,") && isFinite(+").concat(i,")))")):"quantitative"===n.type&&(e.push("isValid(".concat(i,")")),e.push("isFinite(+".concat(i,")")))),e}),[]);return e.length>0?{type:"filter",expr:e.join(" && ")}:null}}class Cm extends uu{clone(){return new Cm(this.parent,d(this.transform))}constructor(e,t){super(e),this.transform=t,this.transform=d(t);const{flatten:n,as:i=[]}=this.transform;this.transform.as=n.map(((e,t)=>{var n;return null!==(n=i[t])&&void 0!==n?n:e}))}dependentFields(){return new Set(this.transform.flatten)}producedFields(){return new Set(this.transform.as)}hash(){return"FlattenTransform ".concat(h(this.transform))}assemble(){const{flatten:e,as:t}=this.transform;return{type:"flatten",fields:e,as:t}}}class Sm extends uu{clone(){return new Sm(null,d(this.transform))}constructor(e,t){var n,i,r;super(e),this.transform=t,this.transform=d(t);const o=null!==(n=this.transform.as)&&void 0!==n?n:[void 0,void 0];this.transform.as=[null!==(i=o[0])&&void 0!==i?i:"key",null!==(r=o[1])&&void 0!==r?r:"value"]}dependentFields(){return new Set(this.transform.fold)}producedFields(){return new Set(this.transform.as)}hash(){return"FoldTransform ".concat(h(this.transform))}assemble(){const{fold:e,as:t}=this.transform;return{type:"fold",fields:e,as:t}}}class Em extends uu{clone(){return new Em(null,d(this.fields),this.geojson,this.signal)}static parseAll(e,t){if(t.component.projection&&!t.component.projection.isFit)return e;let n=0;for(const i of[[ue,ce],[fe,le]]){const r=i.map((e=>{const n=ia(t.encoding[e]);return No(n)?n.field:Mo(n)?{expr:"".concat(n.datum)}:Wo(n)?{expr:"".concat(n.value)}:void 0}));(r[0]||r[1])&&(e=new Em(e,r,null,t.getName("geojson_".concat(n++))))}if(t.channelHasField(ge)){const i=t.typedFieldDef(ge);i.type===Ri&&(e=new Em(e,null,i.field,t.getName("geojson_".concat(n++))))}return e}constructor(e,t,n,i){super(e),this.fields=t,this.geojson=n,this.signal=i}dependentFields(){var e;const n=(null!==(e=this.fields)&&void 0!==e?e:[]).filter(t.isString);return new Set([...this.geojson?[this.geojson]:[],...n])}producedFields(){return new Set}hash(){return"GeoJSON ".concat(this.geojson," ").concat(this.signal," ").concat(h(this.fields))}assemble(){return[...this.geojson?[{type:"filter",expr:'isValid(datum["'.concat(this.geojson,'"])')}]:[],{type:"geojson",...this.fields?{fields:this.fields}:{},...this.geojson?{geojson:this.geojson}:{},signal:this.signal}]}}class Bm extends uu{clone(){return new Bm(null,this.projection,d(this.fields),d(this.as))}constructor(e,t,n,i){super(e),this.projection=t,this.fields=n,this.as=i}static parseAll(e,t){if(!t.projectionName())return e;for(const n of[[ue,ce],[fe,le]]){const i=n.map((e=>{const n=ia(t.encoding[e]);return No(n)?n.field:Mo(n)?{expr:"".concat(n.datum)}:Wo(n)?{expr:"".concat(n.value)}:void 0})),r=n[0]===fe?"2":"";(i[0]||i[1])&&(e=new Bm(e,t.projectionName(),i,[t.getName("x".concat(r)),t.getName("y".concat(r))]))}return e}dependentFields(){return new Set(this.fields.filter(t.isString))}producedFields(){return new Set(this.as)}hash(){return"Geopoint ".concat(this.projection," ").concat(h(this.fields)," ").concat(h(this.as))}assemble(){return{type:"geopoint",projection:this.projection,fields:this.fields,as:this.as}}}class _m extends uu{clone(){return new _m(null,d(this.transform))}constructor(e,t){super(e),this.transform=t}dependentFields(){var e;return new Set([this.transform.impute,this.transform.key,...null!==(e=this.transform.groupby)&&void 0!==e?e:[]])}producedFields(){return new Set([this.transform.impute])}processSequence(e){const{start:t=0,stop:n,step:i}=e,r=[t,n,...i?[i]:[]].join(",");return{signal:"sequence(".concat(r,")")}}static makeFromTransform(e,t){return new _m(e,t)}static makeFromEncoding(e,t){const n=t.encoding,i=n.x,r=n.y;if(No(i)&&No(r)){const o=i.impute?i:r.impute?r:void 0;if(void 0===o)return;const a=i.impute?r:r.impute?i:void 0,{method:s,value:c,frame:u,keyvals:l}=o.impute,f=Ba(t.mark,n);return new _m(e,{impute:o.field,key:a.field,...s?{method:s}:{},...void 0!==c?{value:c}:{},...u?{frame:u}:{},...void 0!==l?{keyvals:l}:{},...f.length?{groupby:f}:{}})}return null}hash(){return"Impute ".concat(h(this.transform))}assemble(){const{impute:e,key:t,keyvals:n,method:i,groupby:r,value:o,frame:a=[null,null]}=this.transform,s={type:"impute",field:e,key:t,...n?{keyvals:(c=n,void 0!==(null==c?void 0:c.stop)?this.processSequence(n):n)}:{},method:"value",...r?{groupby:r}:{},value:i&&"value"!==i?null:o};var c;if(i&&"value"!==i){return[s,{type:"window",as:["imputed_".concat(e,"_value")],ops:[i],fields:[e],frame:a,ignorePeers:!1,...r?{groupby:r}:{}},{type:"formula",expr:"datum.".concat(e," === null ? datum.imputed_").concat(e,"_value : datum.").concat(e),as:e}]}return[s]}}class zm extends uu{clone(){return new zm(null,d(this.transform))}constructor(e,t){var n,i,r;super(e),this.transform=t,this.transform=d(t);const o=null!==(n=this.transform.as)&&void 0!==n?n:[void 0,void 0];this.transform.as=[null!==(i=o[0])&&void 0!==i?i:t.on,null!==(r=o[1])&&void 0!==r?r:t.loess]}dependentFields(){var e;return new Set([this.transform.loess,this.transform.on,...null!==(e=this.transform.groupby)&&void 0!==e?e:[]])}producedFields(){return new Set(this.transform.as)}hash(){return"LoessTransform ".concat(h(this.transform))}assemble(){const{loess:e,on:t,...n}=this.transform;return{type:"loess",x:t,y:e,...n}}}class Om extends uu{clone(){return new Om(null,d(this.transform),this.secondary)}constructor(e,t,n){super(e),this.transform=t,this.secondary=n}static make(e,t,n,i){const r=t.component.data.sources,{from:o}=n;let a=null;if(function(e){return"data"in e}(o)){let e=Ym(o.data,r);e||(e=new gp(o.data),r.push(e));const n=t.getName("lookup_".concat(i));a=new lu(e,n,Yc.Lookup,t.component.data.outputNodeRefCounts),t.component.data.outputNodes[n]=a}else if(function(e){return"param"in e}(o)){const e=o.param;let i;n={as:e,...n};try{i=t.getSelectionComponent(P(e),e)}catch(t){throw new Error(function(e){return'Lookups can only be performed on selection parameters. "'.concat(e,'" is a variable parameter.')}(e))}if(a=i.materialized,!a)throw new Error(function(e){return'Cannot define and lookup the "'.concat(e,'" selection in the same view. ')+"Try moving the lookup into a second, layered view?"}(e))}return new Om(e,n,a.getSource())}dependentFields(){return new Set([this.transform.lookup])}producedFields(){return new Set(this.transform.as?t.array(this.transform.as):this.transform.from.fields)}hash(){return"Lookup ".concat(h({transform:this.transform,secondary:this.secondary}))}assemble(){let e;if(this.transform.from.fields)e={values:this.transform.from.fields,...this.transform.as?{as:t.array(this.transform.as)}:{}};else{let n=this.transform.as;t.isString(n)||(si('If "from.fields" is not specified, "as" has to be a string that specifies the key to be used for the data from the secondary source.'),n="_lookup"),e={as:[n]}}return{type:"lookup",from:this.secondary,key:this.transform.from.key,fields:[this.transform.lookup],...e,...this.transform.default?{default:this.transform.default}:{}}}}class Pm extends uu{clone(){return new Pm(null,d(this.transform))}constructor(e,t){var n,i,r;super(e),this.transform=t,this.transform=d(t);const o=null!==(n=this.transform.as)&&void 0!==n?n:[void 0,void 0];this.transform.as=[null!==(i=o[0])&&void 0!==i?i:"prob",null!==(r=o[1])&&void 0!==r?r:"value"]}dependentFields(){var e;return new Set([this.transform.quantile,...null!==(e=this.transform.groupby)&&void 0!==e?e:[]])}producedFields(){return new Set(this.transform.as)}hash(){return"QuantileTransform ".concat(h(this.transform))}assemble(){const{quantile:e,...t}=this.transform;return{type:"quantile",field:e,...t}}}class Nm extends uu{clone(){return new Nm(null,d(this.transform))}constructor(e,t){var n,i,r;super(e),this.transform=t,this.transform=d(t);const o=null!==(n=this.transform.as)&&void 0!==n?n:[void 0,void 0];this.transform.as=[null!==(i=o[0])&&void 0!==i?i:t.on,null!==(r=o[1])&&void 0!==r?r:t.regression]}dependentFields(){var e;return new Set([this.transform.regression,this.transform.on,...null!==(e=this.transform.groupby)&&void 0!==e?e:[]])}producedFields(){return new Set(this.transform.as)}hash(){return"RegressionTransform ".concat(h(this.transform))}assemble(){const{regression:e,on:t,...n}=this.transform;return{type:"regression",x:t,y:e,...n}}}class jm extends uu{clone(){return new jm(null,d(this.transform))}constructor(e,t){super(e),this.transform=t}addDimensions(e){var t;this.transform.groupby=D((null!==(t=this.transform.groupby)&&void 0!==t?t:[]).concat(e),(e=>e))}producedFields(){}dependentFields(){var e;return new Set([this.transform.pivot,this.transform.value,...null!==(e=this.transform.groupby)&&void 0!==e?e:[]])}hash(){return"PivotTransform ".concat(h(this.transform))}assemble(){const{pivot:e,value:t,groupby:n,limit:i,op:r}=this.transform;return{type:"pivot",field:e,value:t,...void 0!==i?{limit:i}:{},...void 0!==r?{op:r}:{},...void 0!==n?{groupby:n}:{}}}}class Mm extends uu{clone(){return new Mm(null,d(this.transform))}constructor(e,t){super(e),this.transform=t}dependentFields(){return new Set}producedFields(){return new Set}hash(){return"SampleTransform ".concat(h(this.transform))}assemble(){return{type:"sample",size:this.transform.sample}}}function Tm(e){let t=0;return function n(i,r){if(i instanceof gp&&!i.isGenerator&&!Rc(i.data)){e.push(r);r={name:null,source:r.name,transform:[]}}var o;if(i instanceof fp&&(i.parent instanceof gp&&!r.source?(r.format={...null!==(o=r.format)&&void 0!==o?o:{},parse:i.assembleFormatParse()},r.transform.push(...i.assembleTransforms(!0))):r.transform.push(...i.assembleTransforms())),i instanceof sp)return r.name||(r.name="data_".concat(t++)),!r.source||r.transform.length>0?(e.push(r),i.data=r.name):i.data=r.source,void e.push(...i.assemble());if((i instanceof pp||i instanceof mp||i instanceof km||i instanceof Vf||i instanceof sd||i instanceof Bm||i instanceof ap||i instanceof Om||i instanceof Np||i instanceof Op||i instanceof Sm||i instanceof Cm||i instanceof Fm||i instanceof zm||i instanceof Pm||i instanceof Nm||i instanceof dp||i instanceof Mm||i instanceof jm)&&r.transform.push(i.assemble()),(i instanceof rp||i instanceof fu||i instanceof _m||i instanceof Pp||i instanceof Em)&&r.transform.push(...i.assemble()),i instanceof lu)if(r.source&&0===r.transform.length)i.setSource(r.source);else if(i.parent instanceof lu)i.setSource(r.name);else if(r.name||(r.name="data_".concat(t++)),i.setSource(r.name),1===i.numChildren()){e.push(r);r={name:null,source:r.name,transform:[]}}switch(i.numChildren()){case 0:i instanceof lu&&(!r.source||r.transform.length>0)&&e.push(r);break;case 1:n(i.children[0],r);break;default:{r.name||(r.name="data_".concat(t++));let o=r.name;!r.source||r.transform.length>0?e.push(r):o=r.source;for(const e of i.children){n(e,{name:null,source:o,transform:[]})}break}}}}function Lm(e){return"top"===e||"left"===e||an(e)?"header":"footer"}function qm(e,n){const{facet:i,config:r,child:o,component:a}=e;if(e.channelHasField(n)){var s;const c=i[n],u=ld("title",null,r,n);let l=Ko(c,r,{allowDisabling:!0,includeDefault:void 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vs(e)?e.step:e}}function Vm(e,t,n){return Yo(t,{suffix:"by_".concat(Yo(e)),...null!=n?n:{}})}class Gm extends Dm{constructor(e,t,n,i){super(e,"facet",t,n,i,e.resolve),En(this,"facet",void 0),En(this,"child",void 0),En(this,"children",void 0),this.child=yg(e.spec,this,this.getName("child"),void 0,i),this.children=[this.child],this.facet=this.initFacet(e.facet)}initFacet(e){if(!Do(e))return{facet:this.initFacetFieldDef(e,"facet")};const t=B(e),n={};for(const i of t){if(![$,K].includes(i)){si(Gn(i,"facet"));break}const t=e[i];if(void 0===t.field){si(Vn(t,i));break}n[i]=this.initFacetFieldDef(t,i)}return n}initFacetFieldDef(e,t){const n=aa(e,t);return n.header?n.header=nn(n.header):null===n.header&&(n.header=null),n}channelHasField(e){return!!this.facet[e]}fieldDef(e){return this.facet[e]}parseData(){this.component.data=Xm(this),this.child.parseData()}parseLayoutSize(){Um(this)}parseSelections(){this.child.parseSelections(),this.component.selection=this.child.component.selection}parseMarkGroup(){this.child.parseMarkGroup()}parseAxesAndHeaders(){this.child.parseAxesAndHeaders(),function(e){for(const t of Le)qm(e,t);Wm(e,"x"),Wm(e,"y")}(this)}assembleSelectionTopLevelSignals(e){return this.child.assembleSelectionTopLevelSignals(e)}assembleSignals(){return this.child.assembleSignals(),[]}assembleSelectionData(e){return this.child.assembleSelectionData(e)}getHeaderLayoutMixins(){const e={};for(const r of Le)for(const o of pd){const a=this.component.layoutHeaders[r],s=a[o],{facetFieldDef:c}=a;if(c){const n=ld("titleOrient",c.header,this.config,r);if(["right","bottom"].includes(n)){var t;const i=ud(r,n);null!==(t=e.titleAnchor)&&void 0!==t||(e.titleAnchor={}),e.titleAnchor[i]="end"}}if(null!=s&&s[0]){const t="row"===r?"height":"width",s="header"===o?"headerBand":"footerBand";var n,i;if("facet"!==r&&!this.child.component.layoutSize.get(t))null!==(n=e[s])&&void 0!==n||(e[s]={}),e[s][r]=.5;if(a.title)null!==(i=e.offset)&&void 0!==i||(e.offset={}),e.offset["row"===r?"rowTitle":"columnTitle"]=10}}return e}assembleDefaultLayout(){const{column:e,row:t}=this.facet,n=e?this.columnDistinctSignal():t?1:void 0;let i="all";return(t||"independent"!==this.component.resolve.scale.x)&&(e||"independent"!==this.component.resolve.scale.y)||(i="none"),{...this.getHeaderLayoutMixins(),...n?{columns:n}:{},bounds:"full",align:i}}assembleLayoutSignals(){return this.child.assembleLayoutSignals()}columnDistinctSignal(){if(!(this.parent&&this.parent instanceof Gm)){const e=this.getName("column_domain");return{signal:"length(data('".concat(e,"'))")}}}assembleGroup(e){return this.parent&&this.parent instanceof Gm?{...this.channelHasField("column")?{encode:{update:{columns:{field:Yo(this.facet.column,{prefix:"distinct"})}}}}:{},...super.assembleGroup(e)}:super.assembleGroup(e)}getCardinalityAggregateForChild(){const e=[],t=[],n=[];if(this.child instanceof Gm){if(this.child.channelHasField("column")){const i=Yo(this.child.facet.column);e.push(i),t.push("distinct"),n.push("distinct_".concat(i))}}else for(const i of vt){const r=this.child.component.scales[i];if(r&&!r.merged){const o=r.get("type"),a=r.get("range");if(lr(o)&&sn(a)){const r=$p(Kp(this.child,i));r?(e.push(r),t.push("distinct"),n.push("distinct_".concat(r))):si(jn(i))}}}return{fields:e,ops:t,as:n}}assembleFacet(){const{name:e,data:n}=this.component.data.facetRoot,{row:i,column:r}=this.facet,{fields:o,ops:a,as:s}=this.getCardinalityAggregateForChild(),c=[];for(const e of Le){const n=this.facet[e];if(n){c.push(Yo(n));const{bin:u,sort:l}=n;if(Qt(u)&&c.push(Yo(n,{binSuffix:"end"})),wo(l)){const{field:e,op:t=vo}=l,c=Vm(n,l);i&&r?(o.push(c),a.push("max"),s.push(c)):(o.push(e),a.push(t),s.push(c))}else if(t.isArray(l)){const t=cd(n,e);o.push(t),a.push("max"),s.push(t)}}}const u=!!i&&!!r;return{name:e,data:n,groupby:c,...u||o.length>0?{aggregate:{...u?{cross:u}:{},...o.length?{fields:o,ops:a,as:s}:{}}}:{}}}facetSortFields(e){const{facet:n}=this,i=n[e];return i?wo(i.sort)?[Vm(i,i.sort,{expr:"datum"})]:t.isArray(i.sort)?[cd(i,e,{expr:"datum"})]:[Yo(i,{expr:"datum"})]:[]}facetSortOrder(e){const{facet:n}=this,i=n[e];if(i){const{sort:e}=i;return[(wo(e)?e.order:!t.isArray(e)&&e)||"ascending"]}return[]}assembleLabelTitle(){const{facet:e,config:t}=this;if(e.facet)return bd(e.facet,"facet",t);const n={row:["top","bottom"],column:["left","right"]};for(const r of dd)if(e[r]){var i;const o=ld("labelOrient",null===(i=e[r])||void 0===i?void 0:i.header,t,r);if(n[r].includes(o))return bd(e[r],r,t)}}assembleMarks(){const{child:e}=this,t=function(e){const t=[],n=Tm(t);for(const t of e.children)n(t,{source:e.name,name:null,transform:[]});return t}(this.component.data.facetRoot),n=e.assembleGroupEncodeEntry(!1),i=this.assembleLabelTitle()||e.assembleTitle(),r=e.assembleGroupStyle();return[{name:this.getName("cell"),type:"group",...i?{title:i}:{},...r?{style:r}:{},from:{facet:this.assembleFacet()},sort:{field:Le.map((e=>this.facetSortFields(e))).flat(),order:Le.map((e=>this.facetSortOrder(e))).flat()},...t.length>0?{data:t}:{},...n?{encode:{update:n}}:{},...e.assembleGroup(au(this,[]))}]}getMapping(){return this.facet}}function Ym(e,t){for(const a of t){var n,i,r,o;const t=a.data;if(e.name&&a.hasName()&&e.name!==a.dataName)continue;const s=null===(n=e.format)||void 0===n?void 0:n.mesh,c=null===(i=t.format)||void 0===i?void 0:i.feature;if(s&&c)continue;const u=null===(r=e.format)||void 0===r?void 0:r.feature;if((u||c)&&u!==c)continue;const l=null===(o=t.format)||void 0===o?void 0:o.mesh;if(!s&&!l||s===l)if(Wc(e)&&Wc(t)){if(f(e.values,t.values))return a}else if(Rc(e)&&Rc(t)){if(e.url===t.url)return a}else if(Uc(e)&&e.name===a.dataName)return a}return null}function Xm(e){var t,n,i;let r=function(e,t){if(e.data||!e.parent){if(null===e.data){const e=new gp({values:[]});return t.push(e),e}const n=Ym(e.data,t);if(n)return Hc(e.data)||(n.data.format=w({},e.data.format,n.data.format)),!n.hasName()&&e.data.name&&(n.dataName=e.data.name),n;{const n=new gp(e.data);return t.push(n),n}}return e.parent.component.data.facetRoot?e.parent.component.data.facetRoot:e.parent.component.data.main}(e,e.component.data.sources);const{outputNodes:o,outputNodeRefCounts:a}=e.component.data,s=e.parent?e.parent.component.data.ancestorParse.clone():new qc,c=e.data;Hc(c)?(Ic(c)?r=new mp(r,c.sequence):Gc(c)&&(r=new pp(r,c.graticule)),s.parseNothing=!0):null===(null==c||null===(t=c.format)||void 0===t?void 0:t.parse)&&(s.parseNothing=!0),r=null!==(n=fp.makeExplicit(r,e,s))&&void 0!==n?n:r,r=new dp(r);const u=e.parent&&wm(e.parent);var l;(ym(e)||bm(e))&&(u&&(r=null!==(l=rp.makeFromEncoding(r,e))&&void 0!==l?l:r));e.transforms.length>0&&(r=function(e,t,n){let i=0;for(const a of t.transforms){let s,c;if(gc(a))c=e=new sd(e,a),s="derived";else if(rc(a)){var r;const i=up(a);c=e=null!==(r=fp.makeWithAncestors(e,{},i,n))&&void 0!==r?r:e,e=new Vf(e,t,a.filter)}else if(hc(a))c=e=rp.makeFromTransform(e,a,t),s="number";else if(yc(a))s="date",void 0===n.getWithExplicit(a.field).value&&(e=new fp(e,{[a.field]:s}),n.set(a.field,s,!1)),c=e=fu.makeFromTransform(e,a);else if(bc(a))c=e=ap.makeFromTransform(e,a),s="number",wl(t)&&(e=new dp(e));else if(oc(a))c=e=Om.make(e,t,a,i++),s="derived";else if(dc(a))c=e=new Np(e,a),s="number";else if(pc(a))c=e=new Op(e,a),s="number";else if(xc(a))c=e=Pp.makeFromTransform(e,a),s="derived";else if(wc(a))c=e=new Sm(e,a),s="derived";else if(mc(a))c=e=new Cm(e,a),s="derived";else if(ac(a))c=e=new jm(e,a),s="derived";else if(fc(a))e=new Mm(e,a);else if(vc(a))c=e=_m.makeFromTransform(e,a),s="derived";else if(sc(a))c=e=new Fm(e,a),s="derived";else if(cc(a))c=e=new Pm(e,a),s="derived";else if(uc(a))c=e=new Nm(e,a),s="derived";else{if(!lc(a)){si("Ignoring an invalid transform: ".concat(g(a),"."));continue}c=e=new zm(e,a),s="derived"}if(c&&void 0!==s)for(const e of null!==(o=c.producedFields())&&void 0!==o?o:[]){var o;n.set(e,s,!1)}}return e}(r,e,s));const f=function(e){const t={};if(ym(e)&&e.component.selection)for(const n of B(e.component.selection)){const i=e.component.selection[n];for(const e of i.project.items)!e.channel&&H(e.field)>1&&(t[e.field]="flatten")}return t}(e),d=lp(e);if(r=null!==(i=fp.makeWithAncestors(r,{},{...f,...d},s))&&void 0!==i?i:r,ym(e)&&(r=Em.parseAll(r,e),r=Bm.parseAll(r,e)),ym(e)||bm(e)){var p,m;if(!u)r=null!==(m=rp.makeFromEncoding(r,e))&&void 0!==m?m:r;r=null!==(p=fu.makeFromEncoding(r,e))&&void 0!==p?p:r,r=sd.parseAllForSortIndex(r,e)}const h=e.getDataName(Yc.Raw),v=new lu(r,h,Yc.Raw,a);if(o[h]=v,r=v,ym(e)){var y,b;const t=ap.makeFromEncoding(r,e);t&&(r=t,wl(e)&&(r=new dp(r))),r=null!==(y=_m.makeFromEncoding(r,e))&&void 0!==y?y:r,r=null!==(b=Pp.makeFromEncoding(r,e))&&void 0!==b?b:r}var x;ym(e)&&(r=null!==(x=km.make(r,e))&&void 0!==x?x:r);const A=e.getDataName(Yc.Main),D=new lu(r,A,Yc.Main,a);o[A]=D,r=D,ym(e)&&function(e,t){for(const[i,r]of z(null!==(n=e.component.selection)&&void 0!==n?n:{})){var n;const o=e.getName("lookup_".concat(i));e.component.data.outputNodes[o]=r.materialized=new lu(new Vf(t,e,{param:i}),o,Yc.Lookup,e.component.data.outputNodeRefCounts)}}(e,D);let F=null;if(bm(e)){var k;const t=e.getName("facet");r=null!==(k=function(e,t){const{row:n,column:i}=t;if(n&&i){let t=null;for(const r of[n,i])if(wo(r.sort)){const{field:n,op:i=vo}=r.sort;e=t=new Op(e,{joinaggregate:[{op:i,field:n,as:Vm(r,r.sort,{forAs:!0})}],groupby:[Yo(r)]})}return t}return null}(r,e.facet))&&void 0!==k?k:r,F=new sp(r,e,t,D.getSource()),o[t]=F}return{...e.component.data,outputNodes:o,outputNodeRefCounts:a,raw:v,main:D,facetRoot:F,ancestorParse:s}}class Jm extends Am{constructor(e,t,n,i){var r,o,a,s;super(e,"concat",t,n,i,e.resolve),En(this,"children",void 0),"shared"!==(null===(r=e.resolve)||void 0===r||null===(o=r.axis)||void 0===o?void 0:o.x)&&"shared"!==(null===(a=e.resolve)||void 0===a||null===(s=a.axis)||void 0===s?void 0:s.y)||si("Axes cannot be shared in concatenated or repeated views yet (https://github.com/vega/vega-lite/issues/2415)."),this.children=this.getChildren(e).map(((e,t)=>yg(e,this,this.getName("concat_".concat(t)),void 0,i)))}parseData(){this.component.data=Xm(this);for(const e of this.children)e.parseData()}parseSelections(){this.component.selection={};for(const e of this.children){e.parseSelections();for(const t of B(e.component.selection))this.component.selection[t]=e.component.selection[t]}}parseMarkGroup(){for(const e of this.children)e.parseMarkGroup()}parseAxesAndHeaders(){for(const e of this.children)e.parseAxesAndHeaders()}getChildren(e){return ps(e)?e.vconcat:ms(e)?e.hconcat:e.concat}parseLayoutSize(){!function(e){Um(e);const t=1===e.layout.columns?"width":"childWidth",n=void 0===e.layout.columns?"height":"childHeight";Hm(e,t),Hm(e,n)}(this)}parseAxisGroup(){return null}assembleSelectionTopLevelSignals(e){return this.children.reduce(((e,t)=>t.assembleSelectionTopLevelSignals(e)),e)}assembleSignals(){return this.children.forEach((e=>e.assembleSignals())),[]}assembleLayoutSignals(){const e=Fd(this);for(const t of this.children)e.push(...t.assembleLayoutSignals());return e}assembleSelectionData(e){return this.children.reduce(((e,t)=>t.assembleSelectionData(e)),e)}assembleMarks(){return this.children.map((e=>{const t=e.assembleTitle(),n=e.assembleGroupStyle(),i=e.assembleGroupEncodeEntry(!1);return{type:"group",name:e.getName("group"),...t?{title:t}:{},...n?{style:n}:{},...i?{encode:{update:i}}:{},...e.assembleGroup()}}))}assembleDefaultLayout(){const e=this.layout.columns;return{...null!=e?{columns:e}:{},bounds:"full",align:"each"}}}const Qm={disable:1,gridScale:1,scale:1,...va,labelExpr:1,encode:1},$m=B(Qm);class Km extends Pc{constructor(e={},t={},n=!1){super(),this.explicit=e,this.implicit=t,this.mainExtracted=n}clone(){return new Km(d(this.explicit),d(this.implicit),this.mainExtracted)}hasAxisPart(e){return"axis"===e||("grid"===e||"title"===e?!!this.get(e):!(!1===(t=this.get(e))||null===t));var t}hasOrientSignalRef(){return an(this.explicit.orient)}}const Zm={bottom:"top",top:"bottom",left:"right",right:"left"};function eg(e,t){if(!e)return t.map((e=>e.clone()));{if(e.length!==t.length)return;const n=e.length;for(let i=0;i<n;i++){const n=e[i],r=t[i];if(!!n!=!!r)return;if(n&&r){const 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0:n.orient)||(null===(i=f["x"===e?"axisX":"axisY"])||void 0===i?void 0:i.orient)||(null===(r=f.axis)||void 0===r?void 0:r.orient)||function(e){return"x"===e?"bottom":"left"}(e),p=t.getScaleComponent(e).get("type"),m=Zf(e,p,d,t.config),g=void 0!==s?!s:td("disable",f.style,null===(o=s)||void 0===o?void 0:o.style,m).configValue;if(c.set("disable",g,void 0!==s),g)return c;s=s||{};const h=function(e,t,n,i,r){const o=null==t?void 0:t.labelAngle;if(void 0!==o)return an(o)?o:J(o);{const{configValue:o}=td("labelAngle",i,null==t?void 0:t.style,r);return void 0!==o?J(o):n!==ee||!y([qi,Ti],e.type)||No(e)&&e.timeUnit?void 0:270}}(u,s,e,f.style,m),v={fieldOrDatumDef:u,axis:s,channel:e,model:t,scaleType:p,orient:d,labelAngle:h,mark:l,config:f};for(const n of $m){const i=n in nd?nd[n](v):ba(n)?s[n]:void 0,r=void 0!==i,o=ng(i,n,s,t,e);if(r&&o)c.set(n,i,o);else{const{configValue:e,configFrom:t}=ba(n)&&"values"!==n?td(n,f.style,s.style,m):{},a=void 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t=e.getScaleComponent("x"),n=e.getScaleComponent("y");return!!(t&&t.get("selectionExtent")||n&&n.get("selectionExtent"))||void 0}(e),function(e){const t=e.component.projection;return!(!t||t.isFit)||void 0}(e)),c=bn(r),u=o.key,l=function(e){const{encoding:n,stack:i,mark:r,markDef:o,config:a}=e,s=n.order;if(!(!t.isArray(s)&&Wo(s)&&v(s.value)||!s&&v(xn("order",o,a)))){if((t.isArray(s)||No(s))&&!i)return Fn(s,{expr:"datum"});if(Rr(r)){const i="horizontal"===o.orient?"y":"x",r=n[i];if(No(r)){const n=r.sort;return t.isArray(n)?{field:Yo(r,{prefix:i,suffix:"sort_index",expr:"datum"})}:wo(n)?{field:Yo({aggregate:Fa(e.encoding)?n.op:void 0,field:n.field},{expr:"datum"})}:xo(n)?{field:Yo(e.fieldDef(n.encoding),{expr:"datum"}),order:n.order}:null===n?void 0:{field:Yo(r,{binSuffix:e.stack&&e.stack.impute?"mid":void 0,expr:"datum"})}}}}}(e),f=function(e){if(!e.component.selection)return null;const t=B(e.component.selection).length;let n=t,i=e.parent;for(;i&&0===n;)n=B(i.component.selection).length,i=i.parent;return n?{interactive:t>0||!!e.encoding.tooltip}:null}(e),d=xn("aria",r,a),p=fg[i].postEncodingTransform?fg[i].postEncodingTransform(e):null;return[{name:e.getName("marks"),type:fg[i].vgMark,...s?{clip:!0}:{},...c?{style:c}:{},...u?{key:u.field}:{},...l?{sort:l}:{},...f||{},...!1===d?{aria:d}:{},from:{data:n.fromPrefix+e.requestDataName(Yc.Main)},encode:{update:fg[i].encodeEntry(e)},...p?{transform:p}:{}}]}class hg extends Dm{constructor(e,t,n,i={},r){var o;super(e,"unit",t,n,r,void 0,ys(e)?e.view:void 0),En(this,"markDef",void 0),En(this,"encoding",void 0),En(this,"specifiedScales",{}),En(this,"stack",void 0),En(this,"specifiedAxes",{}),En(this,"specifiedLegends",{}),En(this,"specifiedProjection",{}),En(this,"selection",[]),En(this,"children",[]);const a=Hr(e.mark)?{...e.mark}:{type:e.mark},s=a.type;void 0===a.filled&&(a.filled=function(e,t,{graticule:n}){if(n)return!1;const i=wn("filled",e,t),r=e.type;return I(i,r!==zr&&r!==_r&&r!==Pr)}(a,r,{graticule:e.data&&Gc(e.data)}));const c=this.encoding=Ca(e.encoding||{},s,a.filled,r);this.markDef=og(a,c,r),this.size=function({encoding:e,size:t}){for(const n of vt){const i=tt(n);vs(t[i])&&To(e[n])&&(delete t[i],si(ei(i)))}return t}({encoding:c,size:ys(e)?{...i,...e.width?{width:e.width}:{},...e.height?{height:e.height}:{}}:i}),this.stack=Us(s,c),this.specifiedScales=this.initScales(s,c),this.specifiedAxes=this.initAxes(c),this.specifiedLegends=this.initLegends(c),this.specifiedProjection=e.projection,this.selection=(null!==(o=e.params)&&void 0!==o?o:[]).filter((e=>ls(e)))}get hasProjection(){const{encoding:e}=this,t=this.mark===qr,n=e&&Ne.some((t=>qo(e[t])));return t||n}scaleDomain(e){const t=this.specifiedScales[e];return t?t.domain:void 0}axis(e){return this.specifiedAxes[e]}legend(e){return this.specifiedLegends[e]}initScales(e,t){return Pt.reduce(((e,n)=>{const i=ia(t[n]);var r;i&&(e[n]=this.initScale(null!==(r=i.scale)&&void 0!==r?r:{}));return e}),{})}initScale(e){const{domain:n,range:i}=e,r=nn(e);return t.isArray(n)&&(r.domain=n.map(pn)),t.isArray(i)&&(r.range=i.map(pn)),r}initAxes(e){return vt.reduce(((t,n)=>{const i=e[n];if(qo(i)||n===ee&&qo(e.x2)||n===te&&qo(e.y2)){const e=qo(i)?i.axis:void 0;t[n]=e?this.initAxis({...e}):e}return t}),{})}initAxis(e){const t=B(e),n={};for(const i of t){const t=e[i];n[i]=ma(t)?dn(t):pn(t)}return n}initLegends(e){return zt.reduce(((t,n)=>{const i=ia(e[n]);if(i&&function(e){switch(e){case de:case pe:case me:case he:case ge:case ye:case we:case Ae:return!0;case be:case xe:case ve:return!1}}(n)){const e=i.legend;t[n]=e?nn(e):e}return t}),{})}parseData(){this.component.data=Xm(this)}parseLayoutSize(){!function(e){const{size:t,component:n}=e;for(const i of vt){const r=tt(i);if(t[r]){const e=t[r];n.layoutSize.set(r,vs(e)?"step":e,!0)}else{const t=Im(e,r);n.layoutSize.set(r,t,!1)}}}(this)}parseSelections(){this.component.selection=function(e,n){const i={},r=e.config.selection;if(!n||!n.length)return i;for(const a of n){const n=P(a.name),s=a.select,c=t.isString(s)?s:s.type,u=t.isObject(s)?d(s):{type:c},{fields:l,encodings:f,...p}=r[c];for(const e in p){var o;"mark"===e&&(u[e]={...p[e],...u[e]}),(void 0===u[e]||!0===u[e])&&(u[e]=null!==(o=p[e])&&void 0!==o?o:u[e])}const m=i[n]={...u,name:n,type:c,init:a.value,bind:a.bind,events:t.isString(u.on)?eu(u.on,"scope"):t.array(d(u.on))};for(const t of bl)t.defined(m)&&t.parse&&t.parse(e,m,a)}return i}(this,this.selection)}parseMarkGroup(){this.component.mark=dg(this)}parseAxesAndHeaders(){var e;this.component.axes=(e=this,vt.reduce(((t,n)=>(e.component.scales[n]&&(t[n]=[rg(n,e)]),t)),{}))}assembleSelectionTopLevelSignals(e){return function(e,n){let i=!1;for(const o of _(null!==(r=e.component.selection)&&void 0!==r?r:{})){var r;const a=o.name,s=t.stringValue(a+gl);if(0===n.filter((e=>e.name===a)).length){const e="global"===o.resolve?"union":o.resolve,i="point"===o.type?", true, 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new file mode 100644
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from(t,e=nC,n=rC){const r=t.length,i=new Float64Array(2*r);for(let o=0;o<r;o++){const r=t[o];i[2*o]=e(r),i[2*o+1]=n(r)}return new GD(i)}constructor(t){const e=t.length>>1;if(e>0&&"number"!=typeof t[0])throw new Error("Expected coords to contain numbers.");this.coords=t;const n=Math.max(2*e-5,0);this._triangles=new Uint32Array(3*n),this._halfedges=new Int32Array(3*n),this._hashSize=Math.ceil(Math.sqrt(e)),this._hullPrev=new Uint32Array(e),this._hullNext=new Uint32Array(e),this._hullTri=new Uint32Array(e),this._hullHash=new Int32Array(this._hashSize).fill(-1),this._ids=new Uint32Array(e),this._dists=new Float64Array(e),this.update()}update(){const{coords:t,_hullPrev:e,_hullNext:n,_hullTri:r,_hullHash:i}=this,o=t.length>>1;let a=1/0,u=1/0,s=-1/0,l=-1/0;for(let e=0;e<o;e++){const n=t[2*e],r=t[2*e+1];n<a&&(a=n),r<u&&(u=r),n>s&&(s=n),r>l&&(l=r),this._ids[e]=e}const c=(a+s)/2,f=(u+l)/2;let h,d,p,g=1/0;for(let e=0;e<o;e++){const n=XD(c,f,t[2*e],t[2*e+1]);n<g&&(h=e,g=n)}const m=t[2*h],y=t[2*h+1];g=1/0;for(let e=0;e<o;e++){if(e===h)continue;const n=XD(m,y,t[2*e],t[2*e+1]);n<g&&n>0&&(d=e,g=n)}let v=t[2*d],_=t[2*d+1],x=1/0;for(let e=0;e<o;e++){if(e===h||e===d)continue;const n=KD(m,y,v,_,t[2*e],t[2*e+1]);n<x&&(p=e,x=n)}let b=t[2*p],w=t[2*p+1];if(x===1/0){for(let e=0;e<o;e++)this._dists[e]=t[2*e]-t[0]||t[2*e+1]-t[1];tC(this._ids,this._dists,0,o-1);const e=new Uint32Array(o);let n=0;for(let t=0,r=-1/0;t<o;t++){const i=this._ids[t];this._dists[i]>r&&(e[n++]=i,r=this._dists[i])}return this.hull=e.subarray(0,n),this.triangles=new Uint32Array(0),void(this.halfedges=new Uint32Array(0))}if(ZD(m,y,v,_,b,w)){const t=d,e=v,n=_;d=p,v=b,_=w,p=t,b=e,w=n}const k=function(t,e,n,r,i,o){const a=n-t,u=r-e,s=i-t,l=o-e,c=a*a+u*u,f=s*s+l*l,h=.5/(a*l-u*s);return{x:t+(l*c-u*f)*h,y:e+(a*f-s*c)*h}}(m,y,v,_,b,w);this._cx=k.x,this._cy=k.y;for(let e=0;e<o;e++)this._dists[e]=XD(t[2*e],t[2*e+1],k.x,k.y);tC(this._ids,this._dists,0,o-1),this._hullStart=h;let A=3;n[h]=e[p]=d,n[d]=e[h]=p,n[p]=e[d]=h,r[h]=0,r[d]=1,r[p]=2,i.fill(-1),i[this._hashKey(m,y)]=h,i[this._hashKey(v,_)]=d,i[this._hashKey(b,w)]=p,this.trianglesLen=0,this._addTriangle(h,d,p,-1,-1,-1);for(let o,a,u=0;u<this._ids.length;u++){const s=this._ids[u],l=t[2*s],c=t[2*s+1];if(u>0&&Math.abs(l-o)<=YD&&Math.abs(c-a)<=YD)continue;if(o=l,a=c,s===h||s===d||s===p)continue;let f=0;for(let t=0,e=this._hashKey(l,c);t<this._hashSize&&(f=i[(e+t)%this._hashSize],-1===f||f===n[f]);t++);f=e[f];let g,m=f;for(;g=n[m],!ZD(l,c,t[2*m],t[2*m+1],t[2*g],t[2*g+1]);)if(m=g,m===f){m=-1;break}if(-1===m)continue;let y=this._addTriangle(m,s,n[m],-1,-1,r[m]);r[s]=this._legalize(y+2),r[m]=y,A++;let v=n[m];for(;g=n[v],ZD(l,c,t[2*v],t[2*v+1],t[2*g],t[2*g+1]);)y=this._addTriangle(v,s,g,r[s],-1,r[v]),r[s]=this._legalize(y+2),n[v]=v,A--,v=g;if(m===f)for(;g=e[m],ZD(l,c,t[2*g],t[2*g+1],t[2*m],t[2*m+1]);)y=this._addTriangle(g,s,m,-1,r[m],r[g]),this._legalize(y+2),r[g]=y,n[m]=m,A--,m=g;this._hullStart=e[s]=m,n[m]=e[v]=s,n[s]=v,i[this._hashKey(l,c)]=s,i[this._hashKey(t[2*m],t[2*m+1])]=m}this.hull=new Uint32Array(A);for(let t=0,e=this._hullStart;t<A;t++)this.hull[t]=e,e=n[e];this.triangles=this._triangles.subarray(0,this.trianglesLen),this.halfedges=this._halfedges.subarray(0,this.trianglesLen)}_hashKey(t,e){return Math.floor(function(t,e){const n=t/(Math.abs(t)+Math.abs(e));return(e>0?3-n:1+n)/4}(t-this._cx,e-this._cy)*this._hashSize)%this._hashSize}_legalize(t){const{_triangles:e,_halfedges:n,coords:r}=this;let i=0,o=0;for(;;){const a=n[t],u=t-t%3;if(o=u+(t+2)%3,-1===a){if(0===i)break;t=VD[--i];continue}const s=a-a%3,l=u+(t+1)%3,c=s+(a+2)%3,f=e[o],h=e[t],d=e[l],p=e[c];if(QD(r[2*f],r[2*f+1],r[2*h],r[2*h+1],r[2*d],r[2*d+1],r[2*p],r[2*p+1])){e[t]=p,e[a]=f;const r=n[c];if(-1===r){let e=this._hullStart;do{if(this._hullTri[e]===c){this._hullTri[e]=t;break}e=this._hullPrev[e]}while(e!==this._hullStart)}this._link(t,r),this._link(a,n[o]),this._link(o,c);const u=s+(a+1)%3;i<VD.length&&(VD[i++]=u)}else{if(0===i)break;t=VD[--i]}}return o}_link(t,e){this._halfedges[t]=e,-1!==e&&(this._halfedges[e]=t)}_addTriangle(t,e,n,r,i,o){const a=this.trianglesLen;return this._triangles[a]=t,this._triangles[a+1]=e,this._triangles[a+2]=n,this._link(a,r),this._link(a+1,i),this._link(a+2,o),this.trianglesLen+=3,a}}function XD(t,e,n,r){const i=t-n,o=e-r;return i*i+o*o}function JD(t,e,n,r,i,o){const a=(r-e)*(i-t),u=(n-t)*(o-e);return Math.abs(a-u)>=33306690738754716e-32*Math.abs(a+u)?a-u:0}function ZD(t,e,n,r,i,o){return(JD(i,o,t,e,n,r)||JD(t,e,n,r,i,o)||JD(n,r,i,o,t,e))<0}function QD(t,e,n,r,i,o,a,u){const s=t-a,l=e-u,c=n-a,f=r-u,h=i-a,d=o-u,p=c*c+f*f,g=h*h+d*d;return s*(f*g-p*d)-l*(c*g-p*h)+(s*s+l*l)*(c*d-f*h)<0}function KD(t,e,n,r,i,o){const a=n-t,u=r-e,s=i-t,l=o-e,c=a*a+u*u,f=s*s+l*l,h=.5/(a*l-u*s),d=(l*c-u*f)*h,p=(a*f-s*c)*h;return d*d+p*p}function tC(t,e,n,r){if(r-n<=20)for(let i=n+1;i<=r;i++){const r=t[i],o=e[r];let a=i-1;for(;a>=n&&e[t[a]]>o;)t[a+1]=t[a--];t[a+1]=r}else{let i=n+1,o=r;eC(t,n+r>>1,i),e[t[n]]>e[t[r]]&&eC(t,n,r),e[t[i]]>e[t[r]]&&eC(t,i,r),e[t[n]]>e[t[i]]&&eC(t,n,i);const a=t[i],u=e[a];for(;;){do{i++}while(e[t[i]]<u);do{o--}while(e[t[o]]>u);if(o<i)break;eC(t,i,o)}t[n+1]=t[o],t[o]=a,r-i+1>=o-n?(tC(t,e,i,r),tC(t,e,n,o-1)):(tC(t,e,n,o-1),tC(t,e,i,r))}}function eC(t,e,n){const r=t[e];t[e]=t[n],t[n]=r}function nC(t){return t[0]}function rC(t){return t[1]}const iC=1e-6;class oC{constructor(){this._x0=this._y0=this._x1=this._y1=null,this._=""}moveTo(t,e){this._+="M".concat(this._x0=this._x1=+t,",").concat(this._y0=this._y1=+e)}closePath(){null!==this._x1&&(this._x1=this._x0,this._y1=this._y0,this._+="Z")}lineTo(t,e){this._+="L".concat(this._x1=+t,",").concat(this._y1=+e)}arc(t,e,n){const r=(t=+t)+(n=+n),i=e=+e;if(n<0)throw new Error("negative radius");null===this._x1?this._+="M".concat(r,",").concat(i):(Math.abs(this._x1-r)>iC||Math.abs(this._y1-i)>iC)&&(this._+="L"+r+","+i),n&&(this._+="A".concat(n,",").concat(n,",0,1,1,").concat(t-n,",").concat(e,"A").concat(n,",").concat(n,",0,1,1,").concat(this._x1=r,",").concat(this._y1=i))}rect(t,e,n,r){this._+="M".concat(this._x0=this._x1=+t,",").concat(this._y0=this._y1=+e,"h").concat(+n,"v").concat(+r,"h").concat(-n,"Z")}value(){return this._||null}}class aC{constructor(){this._=[]}moveTo(t,e){this._.push([t,e])}closePath(){this._.push(this._[0].slice())}lineTo(t,e){this._.push([t,e])}value(){return this._.length?this._:null}}class uC{constructor(t,[e,n,r,i]=[0,0,960,500]){if(!((r=+r)>=(e=+e)&&(i=+i)>=(n=+n)))throw new Error("invalid bounds");this.delaunay=t,this._circumcenters=new Float64Array(2*t.points.length),this.vectors=new Float64Array(2*t.points.length),this.xmax=r,this.xmin=e,this.ymax=i,this.ymin=n,this._init()}update(){return this.delaunay.update(),this._init(),this}_init(){const{delaunay:{points:t,hull:e,triangles:n},vectors:r}=this,i=this.circumcenters=this._circumcenters.subarray(0,n.length/3*2);for(let e,r,o=0,a=0,u=n.length;o<u;o+=3,a+=2){const u=2*n[o],s=2*n[o+1],l=2*n[o+2],c=t[u],f=t[u+1],h=t[s],d=t[s+1],p=t[l],g=t[l+1],m=h-c,y=d-f,v=p-c,_=g-f,x=m*m+y*y,b=v*v+_*_,w=2*(m*_-y*v);if(w)if(Math.abs(w)<1e-8)e=(c+p)/2,r=(f+g)/2;else{const t=1/w;e=c+(_*x-y*b)*t,r=f+(m*b-v*x)*t}else e=(c+p)/2-1e8*_,r=(f+g)/2+1e8*v;i[a]=e,i[a+1]=r}let o,a,u,s=e[e.length-1],l=4*s,c=t[2*s],f=t[2*s+1];r.fill(0);for(let n=0;n<e.length;++n)s=e[n],o=l,a=c,u=f,l=4*s,c=t[2*s],f=t[2*s+1],r[o+2]=r[l]=u-f,r[o+3]=r[l+1]=c-a}render(t){const e=null==t?t=new oC:void 0,{delaunay:{halfedges:n,inedges:r,hull:i},circumcenters:o,vectors:a}=this;if(i.length<=1)return null;for(let e=0,r=n.length;e<r;++e){const r=n[e];if(r<e)continue;const i=2*Math.floor(e/3),a=2*Math.floor(r/3),u=o[i],s=o[i+1],l=o[a],c=o[a+1];this._renderSegment(u,s,l,c,t)}let u,s=i[i.length-1];for(let e=0;e<i.length;++e){u=s,s=i[e];const n=2*Math.floor(r[s]/3),l=o[n],c=o[n+1],f=4*u,h=this._project(l,c,a[f+2],a[f+3]);h&&this._renderSegment(l,c,h[0],h[1],t)}return e&&e.value()}renderBounds(t){const e=null==t?t=new oC:void 0;return t.rect(this.xmin,this.ymin,this.xmax-this.xmin,this.ymax-this.ymin),e&&e.value()}renderCell(t,e){const n=null==e?e=new oC:void 0,r=this._clip(t);if(null===r||!r.length)return;e.moveTo(r[0],r[1]);let i=r.length;for(;r[0]===r[i-2]&&r[1]===r[i-1]&&i>1;)i-=2;for(let t=2;t<i;t+=2)r[t]===r[t-2]&&r[t+1]===r[t-1]||e.lineTo(r[t],r[t+1]);return e.closePath(),n&&n.value()}*cellPolygons(){const{delaunay:{points:t}}=this;for(let e=0,n=t.length/2;e<n;++e){const t=this.cellPolygon(e);t&&(t.index=e,yield t)}}cellPolygon(t){const e=new aC;return this.renderCell(t,e),e.value()}_renderSegment(t,e,n,r,i){let o;const a=this._regioncode(t,e),u=this._regioncode(n,r);0===a&&0===u?(i.moveTo(t,e),i.lineTo(n,r)):(o=this._clipSegment(t,e,n,r,a,u))&&(i.moveTo(o[0],o[1]),i.lineTo(o[2],o[3]))}contains(t,e,n){return(e=+e)==e&&(n=+n)==n&&this.delaunay._step(t,e,n)===t}*neighbors(t){const e=this._clip(t);if(e)for(const n of this.delaunay.neighbors(t)){const t=this._clip(n);if(t)t:for(let r=0,i=e.length;r<i;r+=2)for(let o=0,a=t.length;o<a;o+=2)if(e[r]==t[o]&&e[r+1]==t[o+1]&&e[(r+2)%i]==t[(o+a-2)%a]&&e[(r+3)%i]==t[(o+a-1)%a]){yield n;break t}}}_cell(t){const{circumcenters:e,delaunay:{inedges:n,halfedges:r,triangles:i}}=this,o=n[t];if(-1===o)return null;const a=[];let u=o;do{const n=Math.floor(u/3);if(a.push(e[2*n],e[2*n+1]),u=u%3==2?u-2:u+1,i[u]!==t)break;u=r[u]}while(u!==o&&-1!==u);return a}_clip(t){if(0===t&&1===this.delaunay.hull.length)return[this.xmax,this.ymin,this.xmax,this.ymax,this.xmin,this.ymax,this.xmin,this.ymin];const e=this._cell(t);if(null===e)return null;const{vectors:n}=this,r=4*t;return n[r]||n[r+1]?this._clipInfinite(t,e,n[r],n[r+1],n[r+2],n[r+3]):this._clipFinite(t,e)}_clipFinite(t,e){const n=e.length;let r,i,o,a,u,s=null,l=e[n-2],c=e[n-1],f=this._regioncode(l,c);for(let h=0;h<n;h+=2)if(r=l,i=c,l=e[h],c=e[h+1],o=f,f=this._regioncode(l,c),0===o&&0===f)a=u,u=0,s?s.push(l,c):s=[l,c];else{let e,n,h,d,p;if(0===o){if(null===(e=this._clipSegment(r,i,l,c,o,f)))continue;[n,h,d,p]=e}else{if(null===(e=this._clipSegment(l,c,r,i,f,o)))continue;[d,p,n,h]=e,a=u,u=this._edgecode(n,h),a&&u&&this._edge(t,a,u,s,s.length),s?s.push(n,h):s=[n,h]}a=u,u=this._edgecode(d,p),a&&u&&this._edge(t,a,u,s,s.length),s?s.push(d,p):s=[d,p]}if(s)a=u,u=this._edgecode(s[0],s[1]),a&&u&&this._edge(t,a,u,s,s.length);else if(this.contains(t,(this.xmin+this.xmax)/2,(this.ymin+this.ymax)/2))return[this.xmax,this.ymin,this.xmax,this.ymax,this.xmin,this.ymax,this.xmin,this.ymin];return s}_clipSegment(t,e,n,r,i,o){for(;;){if(0===i&&0===o)return[t,e,n,r];if(i&o)return null;let a,u,s=i||o;8&s?(a=t+(n-t)*(this.ymax-e)/(r-e),u=this.ymax):4&s?(a=t+(n-t)*(this.ymin-e)/(r-e),u=this.ymin):2&s?(u=e+(r-e)*(this.xmax-t)/(n-t),a=this.xmax):(u=e+(r-e)*(this.xmin-t)/(n-t),a=this.xmin),i?(t=a,e=u,i=this._regioncode(t,e)):(n=a,r=u,o=this._regioncode(n,r))}}_clipInfinite(t,e,n,r,i,o){let 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e=t[r];n+=(r>0?",":"")+(x(e)?e.signal||rR(e):kt(e))}return n+"]"}function oR(t){let e,n,r="{",i=0;for(e in t)n=t[e],r+=(++i>1?",":"")+kt(e)+":"+(x(n)?n.signal||rR(n):kt(n));return r+"}"}eR.prototype=nR.prototype={parse(t){return QO(t,this)},fork(){return new nR(this)},isSubscope(){return this._subid>0},toRuntime(){return this.finish(),{description:this.description,operators:this.operators,streams:this.streams,updates:this.updates,bindings:this.bindings,eventConfig:this.eventConfig,locale:this.locale}},id(){return(this._subid?this._subid+":":0)+this._id++},add(t){return this.operators.push(t),t.id=this.id(),t.refs&&(t.refs.forEach((e=>{e.$ref=t.id})),t.refs=null),t},proxy(t){const e=t instanceof jT?WT(t):t;return this.add(Bz({value:e}))},addStream(t){return this.streams.push(t),t.id=this.id(),t},addUpdate(t){return this.updates.push(t),t},finish(){let t,e;for(t in this.root&&(this.root.root=!0),this.signals)this.signals[t].signal=t;for(t in this.scales)this.scales[t].scale=t;function n(t,e,n){let r,i;t&&(r=t.data||(t.data={}),i=r[e]||(r[e]=[]),i.push(n))}for(t in this.data){e=this.data[t],n(e.input,t,"input"),n(e.output,t,"output"),n(e.values,t,"values");for(const r in e.index)n(e.index[r],t,"index:"+r)}return this},pushState(t,e,n){this._encode.push(WT(this.add(Oz({pulse:t})))),this._parent.push(e),this._lookup.push(n?WT(this.proxy(n)):null),this._markpath.push(-1)},popState(){this._encode.pop(),this._parent.pop(),this._lookup.pop(),this._markpath.pop()},parent(){return M(this._parent)},encode(){return M(this._encode)},lookup(){return M(this._lookup)},markpath(){const t=this._markpath;return++t[t.length-1]},fieldRef(t,e){if(gt(t))return HT(t,e);t.signal||s("Unsupported field reference: "+kt(t));const n=t.signal;let r=this.field[n];if(!r){const t={name:this.signalRef(n)};e&&(t.as=e),this.field[n]=r=WT(this.add(xz(t)))}return r},compareRef(t){let e=!1;const n=t=>ZT(t)?(e=!0,this.signalRef(t.signal)):function(t){return t&&t.expr}(t)?(e=!0,this.exprRef(t.expr)):t,r=W(t.field).map(n),i=W(t.order).map(n);return e?WT(this.add(gz({fields:r,orders:i}))):VT(r,i)},keyRef(t,e){let n=!1;const r=this.signals;return t=W(t).map((t=>ZT(t)?(n=!0,WT(r[t.signal])):t)),n?WT(this.add(bz({fields:t,flat:e}))):function(t,e){const n={$key:t};return e&&(n.$flat=!0),n}(t,e)},sortRef(t){if(!t)return t;const e=GT(t.op,t.field),n=t.order||"ascending";return n.signal?WT(this.add(gz({fields:e,orders:this.signalRef(n.signal)}))):VT(e,n)},event(t,e){const n=t+":"+e;if(!this.events[n]){const r=this.id();this.streams.push({id:r,source:t,type:e}),this.events[n]=r}return this.events[n]},hasOwnSignal(t){return it(this.signals,t)},addSignal(t,e){this.hasOwnSignal(t)&&s("Duplicate signal name: "+kt(t));const n=e instanceof jT?e:this.add($T(e));return this.signals[t]=n},getSignal(t){return this.signals[t]||s("Unrecognized signal name: "+kt(t)),this.signals[t]},signalRef(t){return this.signals[t]?WT(this.signals[t]):(it(this.lambdas,t)||(this.lambdas[t]=this.add($T(null))),WT(this.lambdas[t]))},parseLambdas(){const t=Object.keys(this.lambdas);for(let e=0,n=t.length;e<n;++e){const n=t[e],r=tB(n,this),i=this.lambdas[n];i.params=r.$params,i.update=r.$expr}},property(t){return t&&t.signal?this.signalRef(t.signal):t},objectProperty(t){return t&&x(t)?this.signalRef(t.signal||rR(t)):t},exprRef(t,e){const n={expr:tB(t,this)};return e&&(n.expr.$name=e),WT(this.add(vz(n)))},addBinding(t,e){this.bindings||s("Nested signals do not support binding: "+kt(t)),this.bindings.push(tt({signal:t},e))},addScaleProj(t,e){it(this.scales,t)&&s("Duplicate scale or projection name: "+kt(t)),this.scales[t]=this.add(e)},addScale(t,e){this.addScaleProj(t,Nz(e))},addProjection(t,e){this.addScaleProj(t,Sz(e))},getScale(t){return this.scales[t]||s("Unrecognized scale name: "+kt(t)),this.scales[t]},scaleRef(t){return WT(this.getScale(t))},scaleType(t){return this.getScale(t).params.type},projectionRef(t){return this.scaleRef(t)},projectionType(t){return this.scaleType(t)},addData(t,e){return it(this.data,t)&&s("Duplicate data set name: "+kt(t)),this.data[t]=e},getData(t){return this.data[t]||s("Undefined data set name: "+kt(t)),this.data[t]},addDataPipeline(t,e){return it(this.data,t)&&s("Duplicate data set name: "+kt(t)),this.addData(t,hO.fromEntries(this,e))}},tt(ma,Os,I_,_x,aM,oE,PD,_D,HD,yC,BC,PC);const aR=e;t.Bounds=Qp,t.CanvasHandler=Dy,t.CanvasRenderer=Ty,t.DATE=Rn,t.DAY=Ln,t.DAYOFYEAR=Un,t.Dataflow=da,t.Debug=4,t.Error=1,t.EventStream=Qo,t.Gradient=op,t.GroupItem=tg,t.HOURS=qn,t.Handler=ly,t.Info=3,t.Item=Kp,t.MILLISECONDS=In,t.MINUTES=Pn,t.MONTH=Nn,t.Marks=Vm,t.MultiPulse=sa,t.None=0,t.Operator=Xo,t.Parameters=Yo,t.Pulse=ia,t.QUARTER=zn,t.RenderType=bv,t.Renderer=fy,t.ResourceLoader=eg,t.SECONDS=jn,t.SVGHandler=Ny,t.SVGRenderer=iv,t.SVGStringRenderer=vv,t.Scenegraph=ey,t.TIME_UNITS=$n,t.Transform=ga,t.View=tT,t.WEEK=On,t.Warn=2,t.YEAR=Tn,t.accessor=n,t.accessorFields=i,t.accessorName=r,t.array=W,t.ascending=G,t.bandwidthNRD=wa,t.bin=ka,t.bootstrapCI=Aa,t.boundClip=Fv,t.boundContext=wg,t.boundItem=Gm,t.boundMark=Jm,t.boundStroke=ig,t.changeset=Wo,t.clampRange=H,t.compare=V,t.constant=Q,t.cumulativeLogNormal=La,t.cumulativeNormal=Ba,t.cumulativeUniform=$a,t.dayofyear=Jn,t.debounce=K,t.defaultLocale=Co,t.definition=ya,t.densityLogNormal=Ra,t.densityNormal=Sa,t.densityUniform=Ia,t.domChild=oy,t.domClear=ay,t.domCreate=ry,t.domFind=iy,t.dotbin=Ma,t.error=s,t.expressionFunction=KS,t.extend=tt,t.extent=et,t.extentIndex=nt,t.falsy=m,t.fastmap=at,t.field=c,t.flush=ut,t.font=jm,t.fontFamily=Pm,t.fontSize=Om,t.format=de,t.formatLocale=xo,t.formats=pe,t.hasOwnProperty=it,t.id=f,t.identity=h,t.inferType=Ht,t.inferTypes=Yt,t.ingest=Uo,t.inherits=st,t.inrange=lt,t.interpolate=Fd,t.interpolateColors=Ed,t.interpolateRange=Md,t.intersect=Av,t.intersectBoxLine=zg,t.intersectPath=Fg,t.intersectPoint=Sg,t.intersectRule=Tg,t.isArray=_,t.isBoolean=ct,t.isDate=ft,t.isFunction=Y,t.isIterable=ht,t.isNumber=dt,t.isObject=x,t.isRegExp=pt,t.isString=gt,t.isTuple=Oo,t.key=mt,t.lerp=yt,t.lineHeight=Rm,t.loader=So,t.locale=Do,t.logger=v,t.lruCache=vt,t.markup=Zy,t.merge=_t,t.mergeConfig=w,t.multiLineOffset=Um,t.one=p,t.pad=bt,t.panLinear=z,t.panLog=N,t.panPow=O,t.panSymlog=R,t.parse=function(t,e,n){return x(t)||s("Input Vega specification must be an object."),KO(t,new eR(e=w(function(){const t="sans-serif",e="#4c78a8",n="#000",r="#888",i="#ddd";return{description:"Vega visualization",padding:0,autosize:"pad",background:null,events:{defaults:{allow:["wheel"]}},group:null,mark:null,arc:{fill:e},area:{fill:e},image:null,line:{stroke:e,strokeWidth:2},path:{stroke:e},rect:{fill:e},rule:{stroke:n},shape:{stroke:e},symbol:{fill:e,size:64},text:{fill:n,font:t,fontSize:11},trail:{fill:e,size:2},style:{"guide-label":{fill:n,font:t,fontSize:10},"guide-title":{fill:n,font:t,fontSize:11,fontWeight:"bold"},"group-title":{fill:n,font:t,fontSize:13,fontWeight:"bold"},"group-subtitle":{fill:n,font:t,fontSize:12},point:{size:30,strokeWidth:2,shape:"circle"},circle:{size:30,strokeWidth:2},square:{size:30,strokeWidth:2,shape:"square"},cell:{fill:"transparent",stroke:i}},title:{orient:"top",anchor:"middle",offset:4,subtitlePadding:3},axis:{minExtent:0,maxExtent:200,bandPosition:.5,domain:!0,domainWidth:1,domainColor:r,grid:!1,gridWidth:1,gridColor:i,labels:!0,labelAngle:0,labelLimit:180,labelOffset:0,labelPadding:2,ticks:!0,tickColor:r,tickOffset:0,tickRound:!0,tickSize:5,tickWidth:1,titlePadding:4},axisBand:{tickOffset:-.5},projection:{type:"mercator"},legend:{orient:"right",padding:0,gridAlign:"each",columnPadding:10,rowPadding:2,symbolDirection:"vertical",gradientDirection:"vertical",gradientLength:200,gradientThickness:16,gradientStrokeColor:i,gradientStrokeWidth:0,gradientLabelOffset:2,labelAlign:"left",labelBaseline:"middle",labelLimit:160,labelOffset:4,labelOverlap:!0,symbolLimit:30,symbolType:"circle",symbolSize:100,symbolOffset:0,symbolStrokeWidth:1.5,symbolBaseFillColor:"transparent",symbolBaseStrokeColor:r,titleLimit:180,titleOrient:"top",titlePadding:5,layout:{offset:18,direction:"horizontal",left:{direction:"vertical"},right:{direction:"vertical"}}},range:{category:{scheme:"tableau10"},ordinal:{scheme:"blues"},heatmap:{scheme:"yellowgreenblue"},ramp:{scheme:"blues"},diverging:{scheme:"blueorange",extent:[1,0]},symbol:["circle","square","triangle-up","cross","diamond","triangle-right","triangle-down","triangle-left"]}}}(),e,t.config),n)).toRuntime()},t.pathCurves=up,t.pathEqual=Bv,t.pathParse=cp,t.pathRectangle=Np,t.pathRender=bp,t.pathSymbols=Mp,t.pathTrail=Op,t.peek=M,t.point=sy,t.projection=CA,t.quantileLogNormal=Ua,t.quantileNormal=Ta,t.quantileUniform=Wa,t.quantiles=xa,t.quantizeInterpolator=Dd,t.quarter=I,t.quartiles=ba,t.randomInteger=function(e,n){let r,i,o;null==n&&(n=e,e=0);const a={min(t){return arguments.length?(r=t||0,o=i-r,a):r},max(t){return arguments.length?(i=t||0,o=i-r,a):i},sample:()=>r+Math.floor(o*t.random()),pdf:t=>t===Math.floor(t)&&t>=r&&t<i?1/o:0,cdf(t){const e=Math.floor(t);return e<r?0:e>=i?1:(e-r+1)/o},icdf:t=>t>=0&&t<=1?r-1+Math.floor(t*o):NaN};return a.min(e).max(n)},t.randomKDE=Na,t.randomLCG=function(t){return function(){return(t=(1103515245*t+12345)%2147483647)/2147483647}},t.randomLogNormal=qa,t.randomMixture=Pa,t.randomNormal=za,t.randomUniform=Ha,t.read=Fo,t.regressionExp=Qa,t.regressionLinear=Ja,t.regressionLoess=ru,t.regressionLog=Za,t.regressionPoly=eu,t.regressionPow=Ka,t.regressionQuad=tu,t.renderModule=kv,t.repeat=xt,t.resetDefaultLocale=function(){return vo(),ko(),Co()},t.resetSVGClipId=Jp,t.resetSVGDefIds=function(){Jp(),tp=0},t.responseType=ge,t.runtimeContext=lB,t.sampleCurve=uu,t.sampleLogNormal=Oa,t.sampleNormal=Fa,t.sampleUniform=ja,t.scale=gd,t.sceneEqual=Sv,t.sceneFromJSON=Km,t.scenePickVisit=Wg,t.sceneToJSON=Qm,t.sceneVisit=$g,t.sceneZOrder=Ig,t.scheme=zd,t.serializeXML=Qy,t.setRandom=function(e){t.random=e},t.span=wt,t.splitAccessPath=l,t.stringValue=kt,t.textMetrics=Fm,t.timeBin=Pr,t.timeFloor=hr,t.timeFormatLocale=Mo,t.timeInterval=vr,t.timeOffset=br,t.timeSequence=Ar,t.timeUnitSpecifier=Vn,t.timeUnits=Hn,t.toBoolean=At,t.toDate=Et,t.toNumber=E,t.toSet=Ct,t.toString=Dt,t.transform=va,t.transforms=ma,t.truncate=Ft,t.truthy=g,t.tupleid=Ro,t.typeParsers=It,t.utcFloor=gr,t.utcInterval=_r,t.utcOffset=wr,t.utcSequence=Mr,t.utcdayofyear=nr,t.utcquarter=$,t.utcweek=rr,t.version=aR,t.visitArray=St,t.week=Zn,t.writeConfig=k,t.zero=d,t.zoomLinear=U,t.zoomLog=q,t.zoomPow=P,t.zoomSymlog=j,Object.defineProperty(t,"__esModule",{value:!0})}));
+//# sourceMappingURL=vega.min.js.map
diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/master/http/TestRegionVisualizer.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/http/TestRegionVisualizer.java
new file mode 100644
index 000000000000..b6b098c14732
--- /dev/null
+++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/master/http/TestRegionVisualizer.java
@@ -0,0 +1,98 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.hbase.master.http;
+
+import static org.junit.Assert.assertEquals;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+import java.util.Random;
+import java.util.stream.Collectors;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.RegionMetrics;
+import org.apache.hadoop.hbase.RegionMetricsBuilder;
+import org.apache.hadoop.hbase.ServerName;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.client.RegionInfo;
+import org.apache.hadoop.hbase.client.RegionInfoBuilder;
+import org.apache.hadoop.hbase.master.http.RegionVisualizer.RegionDetails;
+import org.apache.hadoop.hbase.testclassification.MasterTests;
+import org.apache.hadoop.hbase.testclassification.SmallTests;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+import org.apache.hbase.thirdparty.com.google.gson.Gson;
+import org.apache.hbase.thirdparty.com.google.gson.JsonObject;
+
+@Category({ MasterTests.class, SmallTests.class})
+public class TestRegionVisualizer {
+
+  @ClassRule
+  public static final HBaseClassTestRule testRule =
+    HBaseClassTestRule.forClass(TestRegionVisualizer.class);
+
+  private static final Random rand = new Random();
+  private static List<Method> regionMetricsBuilderLongValueSetters;
+
+  @BeforeClass
+  public static void beforeClass() {
+    regionMetricsBuilderLongValueSetters =
+      Arrays.stream(RegionMetricsBuilder.class.getDeclaredMethods())
+        .filter(method -> method.getName().startsWith("set"))
+        .filter(method -> method.getParameterTypes().length == 1)
+        .filter(method -> Objects.equals(method.getParameterTypes()[0], long.class))
+        .collect(Collectors.toList());
+  }
+
+  @Test
+  public void testRegionDetailsJsonSerialization() throws Exception {
+    final ServerName serverName =
+      ServerName.valueOf("example.org", 1234, System.currentTimeMillis());
+    final TableName tableName = TableName.valueOf("foo", "bar");
+    final RegionDetails regionDetails =
+      new RegionDetails(serverName, tableName, buildRegionMetrics(tableName));
+
+    final Gson gson = RegionVisualizer.buildGson();
+    final JsonObject result = gson.fromJson(gson.toJson(regionDetails), JsonObject.class);
+    Assert.assertNotNull(result);
+    assertEquals(serverName.toShortString(), result.get("server_name").getAsString());
+    assertEquals(tableName.getNameAsString(), result.get("table_name").getAsString());
+  }
+
+  /**
+   * Build a {@link RegionMetrics} object for {@code tableName}. Populates a couple random fields
+   * with non-empty values.
+   */
+  final RegionMetrics buildRegionMetrics(final TableName tableName) throws Exception {
+    final List<Method> setters = new ArrayList<>(regionMetricsBuilderLongValueSetters);
+    Collections.shuffle(setters, rand);
+
+    final RegionInfo regionInfo = RegionInfoBuilder.newBuilder(tableName).build();
+    final RegionMetricsBuilder builder =
+      RegionMetricsBuilder.newBuilder(regionInfo.getRegionName());
+    for (final Method setter : setters.subList(0, 3)) {
+      setter.invoke(builder, rand.nextLong());
+    }
+    return builder.build();
+  }
+}
diff --git a/hbase-shaded/pom.xml b/hbase-shaded/pom.xml
index 79a259df6d08..20411905acf2 100644
--- a/hbase-shaded/pom.xml
+++ b/hbase-shaded/pom.xml
@@ -97,6 +97,7 @@
                 <debug-print-included-work-info>${license.debug.print.included}</debug-print-included-work-info>
                 <bundled-dependencies>${license.bundles.dependencies}</bundled-dependencies>
                 <bundled-jquery>${license.bundles.jquery}</bundled-jquery>
+                <bundled-vega>${license.bundles.vega}</bundled-vega>
                 <bundled-logo>${license.bundles.logo}</bundled-logo>
                 <bundled-bootstrap>${license.bundles.bootstrap}</bundled-bootstrap>
               </properties>
diff --git a/pom.xml b/pom.xml
index bbd54261b9ed..75b1ae4bc8a4 100755
--- a/pom.xml
+++ b/pom.xml
@@ -974,6 +974,8 @@
               <exclude>**/parser-date-iso8601.min.js</exclude>
               <!-- MIT: bootstrap -->
               <exclude>**/src/main/resources/hbase-webapps/static/*/bootstrap*</exclude>
+              <!-- BSD 3-clause: Vega, Vega-Lite, Vega-Embed -->
+              <exclude>**/hbase-webapps/static/js/vega*.min.js</exclude>
               <!-- vector graphics -->
               <exclude>**/*.vm</exclude>
               <!-- apache doxia generated -->
@@ -1726,6 +1728,8 @@
     <license.bundles.bootstrap>false</license.bundles.bootstrap>
     <!-- modules that include jquery in their source tree should set true -->
     <license.bundles.jquery>false</license.bundles.jquery>
+    <!-- modules that include vega in their source tree should set true -->
+    <license.bundles.vega>false</license.bundles.vega>
     <tar.name>${project.build.finalName}.tar.gz</tar.name>
     <maven.build.timestamp.format>
       yyyy-MM-dd'T'HH:mm