[Octave-bug-tracker] [bug #50520] rectangle "FaceAlpha" property not honored

[ederag]

URL:
  <http://savannah.gnu.org/bugs/?50520>

                 Summary: rectangle "FaceAlpha" property not honored
                 Project: GNU Octave
            Submitted by: ederag
            Submitted on: Sun 12 Mar 2017 01:46:33 PM UTC
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.2.0
        Operating System: GNU/Linux

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Details:


graphics_toolkit("qt")
figure
rectangle("position", [0.2 0.2 0.5 0.4], "facecolor", "g", "FaceAlpha",.3)
rectangle("position", [0.3 0.1 0.3 0.6], "facecolor", "y", "FaceAlpha",.3)
axis([0 1 0 1])


The rectangles should be transparent. 
They are transparent with the gnuplot backend, but not with the Qt backend.





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