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Title: Regression in transforms: raises exception when applied to single point by mdboom · Pull Request #3866 · matplotlib/matplotlib · GitHub

Open Graph Title: Regression in transforms: raises exception when applied to single point by mdboom · Pull Request #3866 · matplotlib/matplotlib

X Title: Regression in transforms: raises exception when applied to single point by mdboom · Pull Request #3866 · matplotlib/matplotlib

Description: The following code snippet (taken from #3809) which transforms a single point used to work in v1.4.2 but does not work with latest master (it raises "ValueError: Expected 2-dimensional array, got 1"). Bisection of the history showed that the regression was introduced in commit be34210 when PR #3646 was merged. from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas from matplotlib.figure import Figure import numpy as np fig = Figure(figsize=(8,6)) canvas = FigureCanvas(fig) ax = fig.add_subplot(1,1,1) ax.transData.transform((1,1)) # <--- exception thrown here Full traceback: Traceback (most recent call last): File "regression.py", line 9, in ax.transData.transform((1,1)) # <--- exception thrown here File "/home/albert/work/code/matplotlib/lib/matplotlib/transforms.py", line 1289, in transform return self.transform_affine(self.transform_non_affine(values)) File "/home/albert/work/code/matplotlib/lib/matplotlib/transforms.py", line 2259, in transform_affine return self.get_affine().transform(points) File "/home/albert/work/code/matplotlib/lib/matplotlib/transforms.py", line 1583, in transform return self.transform_affine(values) File "/home/albert/work/code/matplotlib/lib/matplotlib/transforms.py", line 1667, in transform_affine return affine_transform(points, mtx) ValueError: Expected 2-dimensional array, got 1

Open Graph Description: The following code snippet (taken from #3809) which transforms a single point used to work in v1.4.2 but does not work with latest master (it raises "ValueError: Expected 2-dimensional array,...

X Description: The following code snippet (taken from #3809) which transforms a single point used to work in v1.4.2 but does not work with latest master (it raises &quot;ValueError: Expected 2-dimensional ar...

Opengraph URL: https://github.com/matplotlib/matplotlib/pull/3866

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