No reprojection done

Ed McNierney ed at TOPOZONE.COM
Tue Jan 17 07:46:18 PST 2006


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
ed at topozone.com
(978) 251-4242 


________________________________

From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
Behalf Of Luiz Vaz
Sent: Tuesday, January 17, 2006 12:46 AM
To: MAPSERVER-USERS at 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 <bengt.nilsson at aerotechtelub.se>: 

	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
	


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