[mapserver-users] EPSG: 3844 problem

[Rahkonen Jukka (Tike)]

Hi,

EPSG:3844 seems to be a system with Northing-Easting coordinate axis order:

http://epsg-registry.org/report.htm?type=selection&entity=urn:ogc:def:crs:EPSG::3844&reportDetail=short&style=urn:uuid:report-style:default-with-code&style_name=OGP%20Default%20With%20Code&title=EPSG:3844

Two solutions:
- Use WMS 1.1.1
- Flip the coordinates in the BBOX of WMS 1.3.0

-Jukka Rahkonen-

Petr Suk wrote:

hi there,
I am trying to set up WMS with EPSG:3844. The source data are GTiffs (EPSG:3844). The problem is, that GetMap request sends only blank images when 3844 is used. If the request is with EPSG:4326 everything is fine and the transformation is OK too.
The mapfile looks like:

MAP
  NAME Romania_Orthophoto
  SIZE 400 300
  EXTENT 419332.586421 240848.815804 459780.109320 259741.205149
  UNITS METERS
  SHAPEPATH "//data/romania/Olt/"
  IMAGECOLOR 255 255 255
  IMAGETYPE PNG
  WEB
    METADATA
     "wms_title"           "Romania OrthoPhoto"
     "wms_onlineresource"  "http://localhost/cgi-bin/wms/romania"
     "wms_srs"             "EPSG:4326 EPSG:3844"
     "wms_enable_request" "*"
     "wms_extent" "419332.586421 240848.815804 459780.109320 259741.205149"
    END
  END
  PROJECTION
      "init=epsg:3844"
  END
LAYER
  NAME "orthophoto"
  STATUS ON
  TILEINDEX olt.shp
  OFFSITE 255 255 255
  OPACITY 85
  TYPE RASTER
  METADATA
    "wms_title"   "orthophoto"
  END
END
END
#
GetMap looks like:
SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&BBOX=419102.35417775972746313,240475.32843947352375835,459895.23908429278526455,260119.92758433445123956&CRS=EPSG:3844&WIDTH=1521&HEIGHT=731&LAYERS=orthophoto&STYLES=&FORMAT=image/png&DPI=96&MAP_RESOLUTION=96&FORMAT_OPTIONS=dpi:96&TRANSPARENT=TRUE

I am running mapserver 6.2.1 on Ubuntu 12.04 with proj 4.8.0 and gdal 1.10

Thanks a lot for any hints.
Petr
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