MapServer *.map / WMS show only a part of the whole shape

Question

I have a problem with a MapServer configuration: test.map // It's installed under: C:\MS4W\ms4w\apps\mapserver_wms. The content of the test.map is follwing:

Map
  NAME "MAPSERVER_QUICKSTART"
  STATUS ON
  EXTENT -137 29 -53 88
  UNITS DD
  SHAPEPATH "data"
  #SIZE 800 600

  IMAGETYPE PNG24

  PROJECTION
    "init=epsg:4326"
  END

  WEB
    METADATA
      ows_title "MapServer Quickstart"
      ows_enable_request "*"
      ows_srs "EPSG:4326 EPSG:25832 EPSG:25833"
    END
  END

  LAYER
    NAME "Countries"
    STATUS ON
    TYPE POLYGON
    DATA "ne_10m_admin_0_countries"
    CLASS
      STYLE
        COLOR 246 241 223
        OUTLINECOLOR 0 0 0
      END
    END
  END

END

Now I would like to use this whole world map as a WMS Serice with the URL:

http://localhost:81/cgi-bin/mapserv.exe?map=C:/MS4W/ms4w/apps/mapserver_wms/test.map&SERVICE=WMS&REQUEST=GetCapabilities&VERSION=1.3.0

I put this WMS URL into QGIS and connect: This is working, but it show ONLY a small part of the whole area (world)! See the diffrence between blue and yellow (blue = imported the shape directly to QGIS // yellow = same shapes as WMS but only a part of the whole). How can I give out the whole world map in the WMS?

Answer 1

You have specified a small extent

EXTENT -137 29 -53 88

which limits your map, if you would like the whole world (in EGPS:4326) you want

EXTENT -180 -90 180 90