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pyplot figure to numpy array
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| def plt2arr(fig, draw=True): | |
| """ | |
| need to draw if figure is not drawn yet | |
| """ | |
| if draw: | |
| fig.canvas.draw() | |
| rgba_buf = fig.canvas.buffer_rgba() | |
| (w,h) = fig.canvas.get_width_height() | |
| rgba_arr = np.frombuffer(rgba_buf, dtype=np.uint8).reshape((h,w,4)) | |
| return rgba_arr | |
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