[Octave-bug-tracker] [bug #42543] transparent surface using facealpha is not working

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?42543>

                 Summary: transparent surface using facealpha is not working
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Wed 11 Jun 2014 10:13:07 PM UTC
                Category: Plotting with gnuplot
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Inaccurate Result
                  Status: None
             Assigned to: None
         Originator Name: Alexey Morozov
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.8.1
        Operating System: Microsoft Windows

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Details:


p = peaks(40);
f1 = figure(10);clf
s1 = surface(p)
view(3)
xlabel('x');ylabel('y');
hold on;plot3([0 40],[40 0],[-10 10],'k')
set(s1,'edgecolor','none')
set(s1,'facealpha',0.2)


produces a line that is completely obstructed by surface instead of being
partially seen-through as shown here
http://stackoverflow.com/questions/12072412/setting-transparancy-of-surface-plot-on-octave/24173227?noredirect=1

So facealpha just makes the plot lighter in color...




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