[mapserver-users] RE: projection inline and 900913 or 4326 within the epsg file

[Sumit Sharma]

Hi David,IMHO by "inline" documentation is referring to projection block in mapfile. You can use projection block defined by you directly in layer or map definition. However, if your layers are in same projection as of map (output projection) you may also avoid layer projection block.Hope it helps.-Sumit
 Date: Thu, 3 Nov 2011 02:01:12 -0700
From: ml-node+s1803224n6958307h34 at n2.nabble.com
To: sumit321 at hotmail.com
Subject: projection inline and 900913 or 4326 within the epsg file



	Dear All,


Mainly, I use these projections: (my epsg file)


#GOOGLE

<900913> +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs <>

# WGS 84

<4326> +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs  <>


Reading this wonderful link: http://mapserver.org/optimization/index.html I wanted to add the projection inline instead of reading the epsg file (only 4 projections inside).


How can I convert this:


<900913> +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs <>


To:


PROJECTION

  "proj=utm"

  "ellps=GRS80"

  "datum=NAD83"

  "zone=15"

  "units=m"

  "north"

  "no_defs"

END


(http://mapserver.org/optimization/mapfile.html)


Thanks!


David
	
	

	

	
	
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