fill plot and transparency < 1 removes lines of x-axis and y-axis. Why?
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The following code works nicely if transparency is 1. If transparency < 1 the lines of the x and y-axis disappear. Why is that?
clear all; close all;
color = 'r';
alpha = .3;
x = linspace(0,1,10)';
y1= x.^2;
y2= 2.*x.^2;
figure;
hold on;
plot(x,0.5.*(y1+y2),'b','Linewidth',2.);
h = fill([x; flipud(x)],[y1; flipud(y2)],color);
set(h,'FaceColor',color,'EdgeColor',color,'FaceAlpha',alpha,'EdgeAlpha',alpha);
box 'on';
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GunnarG
2021-5-20
For the case, other people are searching for a solution:
This link shows a simple solution: just put the axes on top at the end:
set(gca, 'Layer', 'top');
回答(2 个)
Walter Roberson
2012-3-9
I think this might be the same thing Jan described at http://www.mathworks.com/matlabcentral/answers/25028-bug-in-pcolor
OpenGL is the only renderer that supports transparency, so possibly your figure is being rendered by painters or zbuffer until you add transparency after which it hits the OpenGL-specific bug.
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