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Re: does facealpha work?
From: |
Francesco Potortì |
Subject: |
Re: does facealpha work? |
Date: |
Fri, 25 Jul 2014 16:30:50 +0200 |
>I have tried fill() and 'FaceAlpha" property, but cannot obtain the
>results I want. By changing facelpha i can change the colour, which
>becomes paler, but not transparent, as the filled areas below cannot be
>seen. I use the gnuplot backend.
>
>Is there anything obvious that I should know? Do I need to provide an
>example or is this a known problem?
Here is an example:
hold on
p1 = patch([0 0 2], [0 2 1], "r")
p2 = patch([2 2 0], [0 2 1], "g")
hold off
This draws two partially overlapping triangles of different colours, as
expected. Now I set the facealpha property on both to make them
partially transparent:
set (p1, "facealpha", 0.2)
set (p2, "facealpha", 0.2);
Both colours become less saturated, but they remain opaque. Is this a
bug?
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