bugGNU Octave - Bugs: bug #44321, Patch EdgeAlpha setting has no...


bug #44321: Patch EdgeAlpha setting has no effect for gnuplot graphics_toolkit

Submitter:  Dan Sebald <sebald>
Submitted:  Fri 20 Feb 2015 07:00:58 AM UTC
Category:  Plotting with gnuplot Severity:  3 - Normal
Priority:  5 - Normal Item Group:  None
Status:  None Assigned to:  None
Originator Name:  Open/Closed:  * Open
Release:  * dev Operating System:  * GNU/Linux
Fixed Release:  None Planned Release:  None
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Fri 23 Dec 2016 07:00:42 PM UTC, comment #1: 

This behavior is still present in Octave 4.2.0.

Hartmut <hardy>
Fri 20 Feb 2015 07:00:58 AM UTC, original submission:  

The alpha setting for the edge has no effect in the gnuplot terminal.  For example:

graphics_toolkit ("gnuplot")
demo ("patch", 4);
pfid = get(gca, 'Children');
set(pfid, 'facealpha', 0.5);
set(pfid, 'edgealpha', 0.2);

See if that can be fixed so that the edge has alpha scaling, and if not try for something that turns off the edge with

set(pfid, 'edgealpha', 0);

because it would be too difficult to make the border appear nonexistent when attempt to match alpha blending.  One could set the color of the edge the same as the face, but can't match alpha.  Removing the edge seems a mandatory feature.

Dan Sebald <sebald>


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