feat: use Enum classes for constants

Author: RobPasMue

src/ansys/additive/machine.py

@@ -1,12 +1,13 @@
 # (c) 2023 ANSYS, Inc. Unauthorized use, distribution, or duplication is prohibited.
+from enum import Enum
 import math
 
 from ansys.api.additive.v0.additive_domain_pb2 import MachineSettings as MachineMessage
 
 import ansys.additive.conversions as conversions
 
 
-class MachineConstants:
+class MachineConstants(Enum):
     #: Default laser power in Watts.
     DEFAULT_LASER_POWER = 195
     MIN_LASER_POWER = 50

src/ansys/additive/parametric_study/constants.py

@@ -1,5 +1,8 @@
 # (c) 2023 ANSYS, Inc. Unauthorized use, distribution, or duplication is prohibited.
-class ColumnNames:
+from enum import Enum
+
+
+class ColumnNames(Enum):
     """Column names for the parametric study data frame.
 
     Values are stored internally as a :class:`Pandas DataFrame

src/ansys/additive/simulation.py

@@ -1,4 +1,5 @@
 # (c) 2023 ANSYS, Inc. Unauthorized use, distribution, or duplication is prohibited.
+from enum import Enum
 from typing import Union
 
 from ansys.additive.microstructure import MicrostructureInput
@@ -7,7 +8,7 @@
 from ansys.additive.thermal_history import ThermalHistoryInput
 
 
-class SimulationType:
+class SimulationType(Enum):
     """Simulation types."""
 
     #: Single bead simulation.
@@ -18,7 +19,7 @@ class SimulationType:
     MICROSTRUCTURE = "Microstructure"
 
 
-class SimulationStatus:
+class SimulationStatus(Enum):
     """Simulation status values."""
 
     #: Simulation is awaiting execution.

src/ansys/additive/single_bead.py

@@ -1,4 +1,5 @@
 # (c) 2023 ANSYS, Inc. Unauthorized use, distribution, or duplication is prohibited.
+from enum import Enum
 from ansys.api.additive.v0.additive_domain_pb2 import MeltPool as MeltPoolMessage
 from ansys.api.additive.v0.additive_domain_pb2 import SingleBeadInput as SingleBeadInputMessage
 from ansys.api.additive.v0.additive_simulation_pb2 import SimulationRequest
@@ -101,7 +102,7 @@ def _to_simulation_request(self) -> SimulationRequest:
         return SimulationRequest(id=self.id, single_bead_input=input)
 
 
-class MeltPoolColumnNames:
+class MeltPoolColumnNames(Enum):
     """Column names for melt pool data frame."""
 
     #: Width of melt pool (m).