[Octave-bug-tracker] [bug #41874] FLTK toolkit anti-aliasing support lacking

[Daniel]

URL:
  <http://savannah.gnu.org/bugs/?41874>

                 Summary: FLTK toolkit anti-aliasing support lacking
                 Project: GNU Octave
            Submitted by: ddshore
            Submitted on: Fri 14 Mar 2014 08:17:11 PM GMT
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Performance
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.8.1
        Operating System: GNU/Linux

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Details:

I'm currently on version 3.8.1, and when plotting with FLTK it's buggy, it
appears to be the anti-aliasing.  

When using version 3.8.0 it lookes much worse.  This new bug forked from this
bug: 

https://savannah.gnu.org/bugs/?41819

When plotting: 
>plot(x, y, 'x', 'MarkerSize', 10); 

The Xs have a different weight on each diagonal. I'm attaching four
screenshots, showing the differences between gnuplot and FLTK. 

The command I used for the Xs was: 
>plot(x, y, 'x', 'MarkerSize', 10); 

for the sin curve it was: 
> plot (x, sin (x)); 

The sin curve is just for reference, as it looks fine, although the
antialiasing could look a bit smoother. 



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File Attachments:


-------------------------------------------------------
Date: Fri 14 Mar 2014 08:17:11 PM GMT  Name: Screenshot from 2014-03-13
09:15:17.png  Size: 18kB   By: ddshore

<http://savannah.gnu.org/bugs/download.php?file_id=30902>
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Date: Fri 14 Mar 2014 08:17:11 PM GMT  Name: Screenshot from 2014-03-13
09:27:16.png  Size: 13kB   By: ddshore

<http://savannah.gnu.org/bugs/download.php?file_id=30903>
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Date: Fri 14 Mar 2014 08:17:11 PM GMT  Name: Screenshot from 2014-03-13
09:16:39.png  Size: 11kB   By: ddshore

<http://savannah.gnu.org/bugs/download.php?file_id=30904>
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Date: Fri 14 Mar 2014 08:17:11 PM GMT  Name: Screenshot from 2014-03-13
09:27:27.png  Size: 8kB   By: ddshore

<http://savannah.gnu.org/bugs/download.php?file_id=30905>

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