[Mapserver-users] MS4.0 and Raster (GeoTiff) assistance needed

[Phil Shevlin]

Thanks for the reply.  We use MapInfo here.  And it is:

US State Plane Coord System (1983, Feet)
  -- Florida 0902, Western Zone (1983, US Survey Feet)

I'm just learning MS.  And this is my first foray into projections...

Right now I have the MAP projection at (for NAD83):

  PROJECTION
    "init=epsg:4269"
  END

What would I set the project at for the raster?  And wouldn't I need to
convert the degrees to feet?

TIA
-Phil

-----Original Message-----
From: Frank Warmerdam [mailto:warmerdam at pobox.com]
Sent: Thursday, November 20, 2003 10:05 AM
To: Phil Shevlin
Cc: mapserver-users at lists.gis.umn.edu
Subject: Re: [Mapserver-users] MS4.0 and Raster (GeoTiff) assistance
needed


Phil Shevlin wrote:
> I have a map with a number of layers working.  I am trying to include a
> raster layer (.tif).  When I include the layer:
>
>   LAYER
>     NAME "Test"
>     STATUS ON
>     DATA "E:/Inetpub/wwwroot/mapserver/raster/4424.tif"
>     TYPE RASTER
>     TEMPLATE "template_hi.html"
>   END
>
> The map shows but the layer does not appear.  I am assuming that it is a
> projection problem.  My extent is in degrees:
>
> EXTENT -81.917574 26.569844 -81.755026 26.691756
>
> But the .tfw file appears otherwise:
>
> 4.00000000000000
> 0.00000000000000
> 0.00000000000000
> -4.00000000000000
> 669000.00000000000000
> 855000.00000000000000
>
> How do I go about including this layer?  Or, can someone point me to some
> tutorials (I have found one that helps me).
>

Phil,

The raster is clearly in a different projection.  You will need to establish
what coordinate system it is, and properly describe it with a PROJECTION
block
in the layer.  You will also need an appropriate lat/long projectio block
for
the map level if your generated map is currently in lat/long.

To know the coordinate system you will have to look at your dataset and
talk to whoever you got it from.

Good luck,

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I set the clouds in motion - turn up   | Frank Warmerdam,
warmerdam at pobox.com
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