Re: [UMN_MAPSERVER-USERS] No reprojection done

[Ed McNierney]

Luiz  & Bengt -

 

I would expect that if Bengt is working with maps of Scandinavian countries, the difference between Plat Carree and Mercator should be noticeable (Mercator will "stretch" things north/south by quite a bit compared to a "geographic" or Plat Carree projection).

 

Bengt, are you sure you have a good PROJ installation and that MapServer is compiled with PROJ support (run mapserv -v and look for "SUPPORTS=PROJ")?

 

     - Ed

Ed McNierney
President and Chief Mapmaker
TopoZone.com / Maps a la carte, Inc.
73 Princeton Street, Suite 305
North Chelmsford, MA  01863
[EMAIL PROTECTED]
(978) 251-4242

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From: UMN MapServer Users List [mailto:[EMAIL PROTECTED] On Behalf Of Luiz Vaz
Sent: Tuesday, January 17, 2006 12:46 AM
To: MAPSERVER-USERS@LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] No reprojection done

Well,

   it seems that there no perceptual changes each other:

# World Mercator
<54004> +proj=merc +lat_ts=0 +lon_0=0 +k=1.000000 +x_0=0 +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m  no_defs <>

# World Plate Carree
<54001> +ellps=WGS84 +datum=WGS84 +units=m  no_defs <>
# World Equidistant Cylindrical
<54002> +ellps=WGS84 +datum=WGS84 +units=m  no_defs <>

# WGS 84
<4326> +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs  no_defs <>


Best Regards,
Luiz Vaz

2006/1/15, Nilsson Bengt <[EMAIL PROTECTED]>:

Hi,
I've set up a WMS server with an initial singe layer to test reprojection. However , I can't get the projection to work. Whatever output projection i try I get the same geographical (4326) back. For example, when I make a WMS request  with  SRS=EPSG:54004 (Mercator) and bounding box in that projection I get an 4326-map back. I do not get any errors. Here is my map-file:

MAP
NAME WMS-test
STATUS ON
SHAPEPATH "shp"
IMAGECOLOR 255 255 255
FONTSET ../etc/fontset.txt

DEBUG ON
WEB
  LOG "/tmp/mapserv.log"
  IMAGEPATH "/srv/www/htdocs/ms_tmp/"
  IMAGEURL "/ms_tmp/"
  METADATA
    "wms_title"     "Test"
    "wms_onlineresource" "http://hhhhhhhhh/mapserv/wt?service=WMS "
    "wms_srs"       "epsg:9823 epsg:4326 epsg:54004"
  END
END

PROJECTION
  "init=epsg:54004"
END

LAYER
  NAME k92_strandlinje
  DEBUG ON
  METADATA
    "wms_title"    "k92_strandlinje"
    "wms_srs"    "EPSG:4326"
  END
  TYPE POLYGON
  STATUS ON
  CONNECTIONTYPE postgis
  CONNECTION "user=postgres password=xxx dbname=xxx host=localhost"
  DATA 'the_geom from k92_strandlin_polygon'
  PROJECTION
   "init=epsg:4326"
  END
  CLASS
    NAME "strandlin-pgx"
    COLOR 255 251 237
    OUTLINECOLOR 100 100 100
  END
END

END


/Regards Bengt