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<div class="moz-cite-prefix">Le 23/01/2020 à 21:27, P M a écrit :<br>
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<div dir="ltr">something like this...only in gray?<br>
<div><img src="cid:part1.746BFB0D.FC34F6D6@wanadoo.fr"
alt="test.png" class="" width="560" height="422"><br>
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<div dir="ltr" class="gmail_attr">Am Do., 23. Jan. 2020 um
19:08 Uhr schrieb Antoine Monmayrant <<a
href="mailto:amonmayr@laas.fr" moz-do-not-send="true">amonmayr@laas.fr</a>>:<br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hello
Jean-Philippe,<br>
<br>
I think I understand what you want to do, but there is no easy
way to get this in scilab.<br>
The main issue is that scilab does not support transparency.<br>
Otherwise, you could just plot your lines in black with 1/32
alpha (or 255/32 alpha if 0 means transparent and 255 solid
color).<br>
For this kind of plot, I usually plot everything in scilab
with a dummy color (let's say blue), export in svg, edit the
svg to replace the dummy color by the transparent one.<br>
<br>
Antoine <br>
<br>
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Le Jeudi, Janvier 23, 2020 16:35 CET, Jean-Philippe Grivet
<<a href="mailto:jean-philippe.grivet@wanadoo.fr"
target="_blank" moz-do-not-send="true">jean-philippe.grivet@wanadoo.fr</a>>
a écrit: <br>
<br>
> Dear all,<br>
> <br>
> I am drawing a graph in a gray scale (say from 1 to 32),
using lines of <br>
> different density. I would like that, in the region of
intersection of <br>
> two lines, the shade of gray be the sum of the densities
of each line. <br>
> How can I manage that ?<br>
> <br>
> Thanks in advance for any hint<br>
> <br>
> JP Grivet<br>
> <br>
> <br>
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<p>You understood perfectly, although my goal is simpler: instead of
a blend of colors I look for a sum of densities.<br>
</p>
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