[mapserver-commits] [MapServer/MapServer] c2f051: Contour: fix 2 reprojection related issues (#7423)

[Even Rouault]

  Branch: refs/heads/main
  Home:   https://github.com/MapServer/MapServer
  Commit: c2f051e027939072dd83c45aaeefd1befd5929fb
      https://github.com/MapServer/MapServer/commit/c2f051e027939072dd83c45aaeefd1befd5929fb
  Author: Even Rouault <even.rouault at spatialys.com>
  Date:   2026-02-03 (Tue, 03 Feb 2026)

  Changed paths:
    A msautotest/wxs/data/input_contour_line_worldwide.tif
    A msautotest/wxs/data/input_contour_rotated_pole.tif
    A msautotest/wxs/data/input_contour_rotated_pole.tif.aux.xml
    A msautotest/wxs/expected/wms_contour_input_data_rotate_lat_lon_request_3857.png
    A msautotest/wxs/expected/wms_contour_input_data_rotate_lat_lon_request_4326.png
    A msautotest/wxs/expected/wms_contour_request_3857_overlapping_antimeridian.png
    A msautotest/wxs/wms_contour_input_data_rotate_lat_lon.map
    A msautotest/wxs/wms_contour_request_3857_overlapping_antimeridian.map
    M src/mapcontour.c
    M src/mapdraw.c
    M src/mapproject.c
    M src/mapproject.h
    M src/mapserver.h

  Log Message:
  -----------
  Contour: fix 2 reprojection related issues (#7423)

* contour: avoid initial useless reading and countouring before we actually request lines

* contour: fix requesting a raster georeferenced in long/lat in EPSG:3857 with a bounding box overlapping the antimeridian

* contour: fix horizontal/discontinuity lines when rendering a rotated pole raster in EPSG:4326/3857



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