Help in displaying rasters needed!

[Ed McNierney]

Nikolai -

Your UNITS should be METERS, not DD, since you have projected data using METERS as the units.  I'm not sure what your CLASS definition in the layer block is supposed to do, but you don't need it, nor do you need the PROJECTION block since your input layer and your output are the same projection.  You may want to add those back in later, but it's best to keep the MAP file as simple as possible while you're getting started.

GeoTIFF files are TIF files and normally have a .tif file extension; you might want to change to using that extension as some applications may expect it.

Thanks for posting a clear question and including all the information!

     - 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 

-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On Behalf Of Ker Nulov
Sent: Thursday, March 09, 2006 1:35 PM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: [UMN_MAPSERVER-USERS] Help in displaying rasters needed!

Hello to all,

I am trying to display a raster but it isn't working and I need some guidance, hope somebody can help. Here it is:

I downloaded a sample geotiff raster from here:
http://www.csc.noaa.gov/crs/tcm/sample_geotiff.html
and saved it as .gff extension. The info about the file gives this:
[niko at localhost temporal]$ listgeo geotiff_examp.gff
Geotiff_Information:
   Version: 1
   Key_Revision: 1.0
   Tagged_Information:
      ModelTiepointTag (2,3):
         0.5              0.5              0
         703985.696       3737741.78       0
      ModelPixelScaleTag (1,3):
         2                2                0
      End_Of_Tags.
   Keyed_Information:
      GTModelTypeGeoKey (Short,1): ModelTypeProjected
      GTRasterTypeGeoKey (Short,1): RasterPixelIsArea
      ProjectedCSTypeGeoKey (Short,1):
PCS_NAD83_UTM_zone_17N
      ProjLinearUnitsGeoKey (Short,1): Linear_Meter
      End_Of_Keys.
   End_Of_Geotiff.

PCS = 26917 (NAD83 / UTM zone 17N)
Projection = 16017 (UTM zone 17N)
Projection Method: CT_TransverseMercator
   ProjNatOriginLatGeoKey: 0.000000 (  0d 0' 0.00"N)
   ProjNatOriginLongGeoKey: -81.000000 ( 81d 0'
0.00"W)
   ProjScaleAtNatOriginGeoKey: 0.999600
   ProjFalseEastingGeoKey: 500000.000000 m
   ProjFalseNorthingGeoKey: 0.000000 m
GCS: 4269/NAD83
Datum: 6269/North American Datum 1983
Ellipsoid: 7019/GRS 1980 (6378137.00,6356752.31) Prime Meridian: 8901/Greenwich (0.000000/  0d 0'
0.00"E)
Projection Linear Units: 9001/metre (1.000000m)

Corner Coordinates:
Upper Left    (  703984.696, 3737742.777)
Lower Left    (  703984.696, 3737060.777)
Upper Right   (  704894.696, 3737742.777)
Lower Right   (  704894.696, 3737060.777)
Center        (  704439.696, 3737401.777)
[niko at localhost temporal]$

I assume the extento of this geotiff is  EXTENT 703983 3737060 704894 3737742 right?

Then I create
a mapfile like this:
MAP
  NAME "TEST"
  STATUS ON
  IMAGETYPE PNG
  SIZE 900 600
  OUTPUTFORMAT
        NAME png
        DRIVER "GD/PNG"
        MIMETYPE "image/png"
  END
  UNITS dd
  EXTENT 703983 3737060 704894 3737742
  DEBUG on
  SHAPEPATH "data"
  IMAGECOLOR 255 255 255
  WEB
    LOG "/tmp/mapserver.log"
  END
  PROJECTION
      "proj=utm"
      "ellps=GRS80"
      "datum=NAD83"
      "zone=17"
      "units=m"
      "north"
      "no_defs"
  END


  LAYER
        NAME "raster"
        DATA "geotiff_examp.gff"
        TYPE RASTER
        STATUS DEFAULT
        CLASS
            COLOR 255 145 25
            NAME 'Digital Raster Graphic'
        END
  END

END


Then I call it like
this:http://someserver/cgi-bin/mapserv?map=/var/www/html/test/niko/raster.map&mode=map

when I do it I get a white PNG image with no raster
drawn.

My mapserver CGI has this info:
gentoo niko # /var/www/cgi-bin/mapserv -v
MapServer version 4.8.1 OUTPUT=GIF OUTPUT=PNG
OUTPUT=JPEG OUTPUT=WBMP OUTPUT=SVG SUPPORTS=PROJ
SUPPORTS=FREETYPE SUPPORTS=WMS_SERVER INPUT=TIFF
INPUT=EPPL7 INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
gentoo niko #

Mapserver log gives:
gentoo niko # cat /tmp/mapserver.log
Thu Mar  9 12:32:23
2006,21210,10.225.182.179,TEST,3,703927.000000
3737060.000000 704950.000000 3737742.000000,-1.000000
-1.000000,,normal execution
gentoo niko #


I have tryed many combination of options but nothing
seems to work and no error message appears. Where is
my error?

Thanks in advance
Nikolai



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