[mapserver-commits] [MapServer/MapServer] fb438a: [Backport branch-8-6] mapcairo.c: avoid double sca...

[github-actions[bot]]

  Branch: refs/heads/branch-8-6
  Home:   https://github.com/MapServer/MapServer
  Commit: fb438a846e806b6ca73334480d9fcf30ff8f8d7e
      https://github.com/MapServer/MapServer/commit/fb438a846e806b6ca73334480d9fcf30ff8f8d7e
  Author: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
  Date:   2026-08-12 (Wed, 12 Aug 2026)

  Changed paths:
    M msautotest/renderers/expected/line_marker_svg.png
    M msautotest/renderers/expected/point_svg.png
    M msautotest/sld/expected/map_linemark.png
    M msautotest/sld/expected/sld_linemark.png
    M msautotest/sld/expected/sld_url_linemark.png
    M msautotest/wxs/expected/point_symbol_identification_anchor.png
    M msautotest/wxs/expected/wms_get_map_symbol_ext_svg_sld.png
    M msautotest/wxs/point_symbol_identification.map
    M src/mapcairo.c

  Log Message:
  -----------
  [Backport branch-8-6] mapcairo.c: avoid double scaling of SVG symbols (fixes: #7430) (#7595)

* mapcairo.c: revert to svg_handle_render_cairo() (fixes: #7430)

Since 8.6, rsvg_handle_render_cairo() (marked as depriceated) was replaced with the newer rsvg_handle_render_document(), however this caused scaling issues (#7430). This PR implements a simple workaround by reverting back to the legacy function, solving the issues.

* fix svg scaling by using rsvg_handle_render_document without cairo_scale

* correctly rendered test result

* update test coordinates for correctly rendeted SVG

* use symbol size for rsvg_handle_render_document and check vor librscg version

This allows cairo and older rsvgr rendering with scale_cairo>
Also fixed incorrect test png file name

* update expected results

---------

Co-authored-by: Johannes Eberenz <johannes.eberenz at alliander.com>
Co-authored-by: Jeff McKenna <jmckenna at gatewaygeomatics.com>



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