Commite2dd1ba

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Merge pull request#18504 from meeseeksmachine/auto-backport-of-pr-18500-on-v3.3.x

Backport PR#18500 on branch v3.3.x (BUG: Fix all-masked imshow)

2 parents6ba186c +4ddec28 commite2dd1baCopy full SHA for e2dd1ba

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Lines changed: 4 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -474,8 +474,10 @@ def _make_image(self, A, in_bbox, out_bbox, clip_bbox, magnification=1.0,`
`474`	`474`	`# do not run the vmin/vmax through the same pipeline we can`
`475`	`475`	`# have values close or equal to the boundaries end up on the`
`476`	`476`	`# wrong side.`
`477`		`-vrange=np.array([self.norm.vmin,self.norm.vmax],`
`478`		`-dtype=scaled_dtype)`
	`477`	`+vmin,vmax=self.norm.vmin,self.norm.vmax`
	`478`	`+ifvminisnp.ma.masked:`
	`479`	`+vmin,vmax=a_min,a_max`
	`480`	`+vrange=np.array([vmin,vmax],dtype=scaled_dtype)`
`479`	`481`
`480`	`482`	`A_scaled-=a_min`
`481`	`483`	`vrange-=a_min`

Lines changed: 8 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -846,6 +846,14 @@ def test_mask_image():`
`846`	`846`	`ax2.imshow(A,interpolation='nearest')`
`847`	`847`
`848`	`848`
	`849`	`+deftest_mask_image_all():`
	`850`	`+# Test behavior with an image that is entirely masked does not warn`
	`851`	`+data=np.full((2,2),np.nan)`
	`852`	`+fig,ax=plt.subplots()`
	`853`	`+ax.imshow(data)`
	`854`	`+fig.canvas.draw_idle()# would emit a warning`
	`855`	`+`
	`856`	`+`
`849`	`857`	`@image_comparison(['imshow_endianess.png'],remove_text=True)`
`850`	`858`	`deftest_imshow_endianess():`
`851`	`859`	`x=np.arange(10)`

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