LinearTransformationScene bug(s) #3479
Description
Description of bug / unexpected behavior
There are a variety of bugs in the LinearTransformationScene. Of note:
- Playing animations on Text, Tex, and MathTex Mobjects causes an error:
ValueError: operands could not be broadcast together with shapes (<coordinate pair>) (<coordinate pair>)Todo: test with other text-based Mobjects (number, decimal, etc) - Running
self.wait()if not the final statement in the scene causes an error:TypeError: All submobjects must be of type VMobject
Expected behavior
- Creating text-based Mobjects and playing animations on them should not cause an error.
-
self.wait()should not cause an error in the middle of the scene.
How to reproduce the issue
Code for reproducing the problem
- Text, Tex, & MathTex Mobjects fail upon animation:
class LinearTransformationSceneExample(LinearTransformationScene):
def __init__(self, **kwargs):
LinearTransformationScene.__init__(
self,
show_coordinates=True,
leave_ghost_vectors=True,
*kwargs
)
def construct(self):
text = Text("Hello world")
tex = Tex(r"\LaTeX")
math_tex = MathTex(r"\pi x_{1} x_{2}")
group = VGroup(text, tex, math_tex).arrange(DOWN)
self.play(Write(group)) # <---- FAILS HERE
# Note that instead of playing, `self.add(group)` works fine.
matrix = [[1, 1], [0, 1]]
self.apply_matrix(matrix)
self.wait()- Calling
self.wait()before the end of the scene fails:
class LinearTransformationSceneExample(LinearTransformationScene):
def __init__(self, **kwargs):
LinearTransformationScene.__init__(
self,
show_coordinates=True,
leave_ghost_vectors=True,
*kwargs
)
def construct(self):
circle = Circle().set_fill(YELLOW, opacity=0.7)
self.play(Create(circle))
self.wait(2)
matrix = [[1, 1], [0, 1]]
self.apply_matrix(matrix)
self.wait()Additional media files
... there are no files to paste. it fails to render. that's what this bug report is about.
Logs
Terminal output
- Text-based mobjects bug: https://pastebin.com/EpAmcWWK
self.wait()bug: https://pastebin.com/1tWsVWdX
System specifications
System Details
- OS (with version, e.g., Windows 10 v2004 or macOS 10.15 (Catalina)): macOS Sonoma 14.2
- RAM: 16GB
- Python version (
python/py/python3 --version): Python 3.11.6 - Installed modules (provide output from
pip list):
$ uname -a
Darwin hostname.com 23.2.0 Darwin Kernel Version 23.2.0: Fri Oct 13 09:27:09 PDT 2023; root:xnu-10002.60.54~14/RELEASE_ARM64_T6020 arm64
$ python3 --version
Python 3.11.6
$ pip list
Package Version
---------------------- -----------
appnope 0.1.3
asttokens 2.4.1
Brotli 1.1.0
build 1.0.3
CacheControl 0.13.1
certifi 2023.11.17
cffi 1.16.0
charset-normalizer 3.3.2
cleo 2.1.0
click 8.1.7
click-default-group 1.2.4
cloup 2.1.2
colorama 0.4.6
comm 0.1.4
crashtest 0.4.1
Cython 3.0.5
debugpy 1.8.0
decorator 5.1.1
distlib 0.3.7
dulwich 0.21.6
exceptiongroup 1.2.0
executing 2.0.1
fastjsonschema 2.19.0
filelock 3.13.1
future 0.18.3
glcontext 2.5.0
idna 3.5
importlib-metadata 6.8.0
installer 0.7.0
ipykernel 6.26.0
ipython 8.18.0
isosurfaces 0.1.0
jaraco.classes 3.3.0
jedi 0.19.1
jupyter_client 8.6.0
jupyter_core 5.5.0
keyring 24.3.0
manim 0.18.0
ManimPango 0.5.0
mapbox-earcut 1.0.1
markdown-it-py 3.0.0
matplotlib-inline 0.1.6
mdurl 0.1.0
moderngl 5.8.2
moderngl-window 2.4.1
more-itertools 10.1.0
msgpack 1.0.7
multipledispatch 0.6.0
nest-asyncio 1.5.8
networkx 3.2.1
numpy 1.26.2
packaging 23.2
parso 0.8.3
pexpect 4.8.0
pickleshare 0.7.5
Pillow 9.5.0
pip 23.3.1
pkginfo 1.9.6
platformdirs 3.11.0
poetry 1.7.1
poetry-core 1.8.1
poetry-plugin-export 1.6.0
prompt-toolkit 3.0.41
psutil 5.9.5
ptyprocess 0.7.0
pure-eval 0.2.2
pycairo 1.25.1
pycparser 2.21
pydub 0.25.1
pyglet 1.5.27
Pygments 2.17.2
pyobjc-core 10.0
pyobjc-framework-Cocoa 10.0
pyproject_hooks 1.0.0
pyrr 0.10.3
PySocks 1.7.1
python-dateutil 2.8.2
PyYAML 6.0.1
pyzmq 25.1.1
rapidfuzz 3.5.2
requests 2.31.0
requests-toolbelt 1.0.0
rich 13.7.0
SciPy 1.11.4
screeninfo 0.8.1
setuptools 68.2.2
shellingham 1.5.4
six 1.16.0
skia-pathops 0.8.0.post1
srt 3.5.3
stack-data 0.6.2
svgelements 1.9.6
tomli 2.0.1
tomlkit 0.12.3
tornado 6.3.3
tqdm 4.66.1
traitlets 5.13.0
trove-classifiers 2023.11.22
typing_extensions 4.8.0
urllib3 2.1.0
virtualenv 20.24.7
watchdog 2.1.6
wcwidth 0.2.12
wheel 0.41.3
xattr 0.10.1
zipp 3.17.0
LaTeX details
- LaTeX distribution (e.g. TeX Live 2020): No clue! Whatever homebrew provided.
- Installed LaTeX packages:
https://i.strange.boats/OHQfaj.txt full list is huge. here's the output.
FFMPEG
Output of ffmpeg -version:
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
built with clang version 12.0.0
configuration: --prefix=/Users/ktietz/demo/mc3/conda-bld/ffmpeg_1628925491858/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_plac --cc=arm64-apple-darwin20.0.0-clang --disable-doc --enable-avresample --enable-gmp --enable-hardcoded-tables --enable-libfreetype --enable-libvpx --enable-pthreads --enable-libopus --enable-postproc --enable-pic --enable-pthreads --enable-shared --enable-static --enable-version3 --enable-zlib --enable-libmp3lame --disable-nonfree --enable-gpl --enable-gnutls --disable-openssl --enable-libopenh264 --enable-libx264
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
Additional comments
Text bugs: calling self.add() does not error
Wait bugs: calling self.wait() as the very last action in the scene does not error.