[Octave-bug-tracker] [bug #54693] Qt/FLTK - export as PNG - wrong image size and aspect ratio

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?54693>

                 Summary: Qt/FLTK - export as PNG - wrong image size and
aspect ratio
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Wed 19 Sep 2018 02:43:30 PM UTC
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: aj
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.4.1
        Operating System: Any

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Details:

Exporting a figure from Qt/FLTK results in an image with incorrect size and
aspect ratio. This does not seem to happen with Gnuplot. 

Tested on Arch Linux and Windows 7 with Octave 4.4.1.

Example code is shown below and example results (exported images and
screenshots) have been attached. Qt and FLTK seem to produce identical
results.


xdata=[0:0.01:4*pi];
ydata=sin(xdata);
plot(xdata,ydata);




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File Attachments:


-------------------------------------------------------
Date: Wed 19 Sep 2018 02:43:30 PM UTC  Name: plot_image_FLTK.png  Size: 16KiB 
 By: None

<http://savannah.gnu.org/bugs/download.php?file_id=45051>
-------------------------------------------------------
Date: Wed 19 Sep 2018 02:43:30 PM UTC  Name: plot_image_Gnuplot.png  Size:
7KiB   By: None

<http://savannah.gnu.org/bugs/download.php?file_id=45052>
-------------------------------------------------------
Date: Wed 19 Sep 2018 02:43:30 PM UTC  Name: plot_image_FLTK_screenshot.png 
Size: 25KiB   By: None

<http://savannah.gnu.org/bugs/download.php?file_id=45053>
-------------------------------------------------------
Date: Wed 19 Sep 2018 02:43:30 PM UTC  Name: plot_image_Gnuplot_screenshot.png
 Size: 40KiB   By: None

<http://savannah.gnu.org/bugs/download.php?file_id=45054>

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  <https://savannah.gnu.org/bugs/?54693>

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