[Octave-bug-tracker] [bug #64245] LineWidth is limited when printing in to raster image

[Valdas]

URL:
  <https://savannah.gnu.org/bugs/?64245>

                 Summary: LineWidth is limited when printing in to raster
image
                   Group: GNU Octave
               Submitter: zmogas
               Submitted: Tue 23 May 2023 08:19:06 PM UTC
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: dev
         Discussion Lock: Any
        Operating System: GNU/Linux
           Fixed Release: None
         Planned Release: None


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Follow-up Comments:


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Date: Tue 23 May 2023 08:19:06 PM UTC By: Valdas <zmogas>
This test function produces a plot with lines with various widths, and then
figure is printed to PNG and SVG files:

function p_test

        close all

        plot([0, 1], [0, 1], 'linewidth', 0.5, ...
                 [1, 2], [0, 1], 'linewidth', 1, ...
                 [2, 3], [0, 1], 'linewidth', 2, ...
                 [3, 4], [0, 1], 'linewidth', 5, ...
                 [4, 5], [0, 1], 'linewidth', 10, ...
                 [5, 6], [0, 1], 'linewidth', 20);

        print ('p_test.png', ...
                   '-dpng', ...
                   '-r300');
                   
        print ('p_test.svg', ...
                   '-dsvg', ...
                   '-r300');

endfunction

The line widths in the SVG image is correct (also see rendering in the
Screenshot image), but in the PNG image the line widths is limited to a
certain value.

Line widths in a figure window also seems limited (see the screenshot of a
figure window).

If I remember correctly, in earlier versions lines were rendered in a raster
image with not width restrictions.

The Graphic toolkit is set to Qt.







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File Attachments:


-------------------------------------------------------
Date: Tue 23 May 2023 08:19:06 PM UTC  Name: p_test.png  Size: 85KiB   By:
zmogas

<http://savannah.gnu.org/bugs/download.php?file_id=54777>
-------------------------------------------------------
Date: Tue 23 May 2023 08:19:06 PM UTC  Name: Screenshot_of_svg_render.png 
Size: 27KiB   By: zmogas

<http://savannah.gnu.org/bugs/download.php?file_id=54778>
-------------------------------------------------------
Date: Tue 23 May 2023 08:19:06 PM UTC  Name: p_test.svg  Size: 9KiB   By:
zmogas

<http://savannah.gnu.org/bugs/download.php?file_id=54779>
-------------------------------------------------------
Date: Tue 23 May 2023 08:19:06 PM UTC  Name: Screenshot_of_figure_window.png 
Size: 45KiB   By: zmogas

<http://savannah.gnu.org/bugs/download.php?file_id=54780>

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