Commit1707b1e

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Merge pull request#10773 from TeamChillUTSC/10419-svg-alpha-text

Consider alpha channel from RGBA color of text for SVG backend text opacity rendering

2 parents8a27054 +cd9d84f commit1707b1eCopy full SHA for 1707b1e

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+176

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+176

-4

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Lines changed: 8 additions & 4 deletions

Original file line number	Diff line number	Diff line change
`@@ -901,8 +901,10 @@ def _draw_text_as_path(self, gc, x, y, s, prop, angle, ismath, mtext=None):`
`901`	`901`	`style= {}`
`902`	`902`	`ifcolor!='#000000':`
`903`	`903`	`style['fill']=color`
`904`		`-ifgc.get_alpha()!=1.0:`
`905`		`-style['opacity']=short_float_fmt(gc.get_alpha())`
	`904`	`+`
	`905`	`+alpha=gc.get_alpha()ifgc.get_forced_alpha()elsegc.get_rgb()[3]`
	`906`	`+ifalpha!=1:`
	`907`	`+style['opacity']=short_float_fmt(alpha)`
`906`	`908`
`907`	`909`	`ifnotismath:`
`908`	`910`	`font=text2path._get_font(prop)`
`@@ -1002,8 +1004,10 @@ def _draw_text_as_text(self, gc, x, y, s, prop, angle, ismath, mtext=None):`
`1002`	`1004`	`style= {}`
`1003`	`1005`	`ifcolor!='#000000':`
`1004`	`1006`	`style['fill']=color`
`1005`		`-ifgc.get_alpha()!=1.0:`
`1006`		`-style['opacity']=short_float_fmt(gc.get_alpha())`
	`1007`	`+`
	`1008`	`+alpha=gc.get_alpha()ifgc.get_forced_alpha()elsegc.get_rgb()[3]`
	`1009`	`+ifalpha!=1:`
	`1010`	`+style['opacity']=short_float_fmt(alpha)`
`1007`	`1011`
`1008`	`1012`	`ifnotismath:`
`1009`	`1013`	`font=self._get_font(prop)`

Lines changed: 114 additions & 0 deletions

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Original file line number	Diff line number	Diff line change
`@@ -474,3 +474,25 @@ def test_single_artist_usetex():`
`474`	`474`	`fig,ax=plt.subplots()`
`475`	`475`	`ax.text(.5,.5,r"$\frac12$",usetex=True)`
`476`	`476`	`fig.canvas.draw()`
	`477`	`+`
	`478`	`+`
	`479`	`+@image_comparison(baseline_images=['text_as_path_opacity'],`
	`480`	`+extensions=['svg'])`
	`481`	`+deftest_text_as_path_opacity():`
	`482`	`+plt.figure()`
	`483`	`+plt.gca().set_axis_off()`
	`484`	`+plt.text(0.25,0.25,'c',color=(0,0,0,0.5))`
	`485`	`+plt.text(0.25,0.5,'a',alpha=0.5)`
	`486`	`+plt.text(0.25,0.75,'x',alpha=0.5,color=(0,0,0,1))`
	`487`	`+`
	`488`	`+`
	`489`	`+@image_comparison(baseline_images=['text_as_text_opacity'],`
	`490`	`+extensions=['svg'])`
	`491`	`+deftest_text_as_text_opacity():`
	`492`	`+matplotlib.rcParams['svg.fonttype']='none'`
	`493`	`+plt.figure()`
	`494`	`+plt.gca().set_axis_off()`
	`495`	+plt.text(0.25,0.25,'50% using `color`',color=(0,0,0,0.5))
	`496`	+plt.text(0.25,0.5,'50% using `alpha`',alpha=0.5)
	`497`	+plt.text(0.25,0.75,'50% using `alpha` and 100% `color`',alpha=0.5,
	`498`	`+color=(0,0,0,1))`

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