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Fix matplotlib 3.10 compatibility with visualizers #271

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merged 2 commits into from
Jan 2, 2025
Merged

Fix matplotlib 3.10 compatibility with visualizers #271

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79df70a
Switch to different buffering package
mike-gimelfarb Dec 21, 2024
9470b11
Proper matplotlib fix for 3.10
mike-gimelfarb Jan 2, 2025
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6 changes: 3 additions & 3 deletions pyRDDLGym/core/visualizer/chart.py
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Original file line number Diff line number Diff line change
Expand Up @@ -136,10 +136,10 @@ def _setup(self):

def convert2img(self, fig, ax):
fig.canvas.draw()
data = np.frombuffer(fig.canvas.tostring_rgb(), dtype=np.uint8)
data = data.reshape(fig.canvas.get_width_height()[::-1] + (3,))
data = np.frombuffer(fig.canvas.buffer_rgba(), dtype=np.uint8)
data = data.reshape(fig.canvas.get_width_height()[::-1] + (4,))
data = data[:, :, :3]
img = Image.fromarray(data)
self._data = data
self._img = img
return img

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6 changes: 3 additions & 3 deletions pyRDDLGym/core/visualizer/heatmap.py
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Original file line number Diff line number Diff line change
Expand Up @@ -98,10 +98,10 @@ def _setup(self):

def convert2img(self, fig, ax):
fig.canvas.draw()
data = np.frombuffer(fig.canvas.tostring_rgb(), dtype=np.uint8)
data = data.reshape(fig.canvas.get_width_height()[::-1] + (3,))
data = np.frombuffer(fig.canvas.buffer_rgba(), dtype=np.uint8)
data = data.reshape(fig.canvas.get_width_height()[::-1] + (4,))
data = data[:, :, :3]
img = Image.fromarray(data)
self._data = data
self._img = img
return img

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6 changes: 3 additions & 3 deletions pyRDDLGym/core/visualizer/text.py
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Original file line number Diff line number Diff line change
Expand Up @@ -38,10 +38,10 @@ def init_canvas(self, figure_size, dpi):
def convert2img(self, fig, ax):
ax.set_position((0, 0, 1, 1))
fig.canvas.draw()
data = np.frombuffer(fig.canvas.tostring_rgb(), dtype=np.uint8)
data = data.reshape(fig.canvas.get_width_height()[::-1] + (3,))
data = np.frombuffer(fig.canvas.buffer_rgba(), dtype=np.uint8)
data = data.reshape(fig.canvas.get_width_height()[::-1] + (4,))
data = data[:, :, :3]
img = Image.fromarray(data)
self._data = data
self._img = img
return img

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