Hello Oz,

First, always test your mapfile with the shp2img commandline utility (http://www.mapserver.org/utilities/shp2img.html). This will either produce a map image, or give you an error.

Next, I believe your problem is your expressions. You should follow the examples in http://www.mapserver.org/input/raster.html which states:

   EXPRESSION ([pixel] >= 64 AND [pixel] < 128)

You have:

   EXPRESSION (([pixel] >= 0 AND ([pixel] <=5))

So try:

   EXPRESSION ([pixel] >= 0 AND [pixel] <=5)

Also, give a read to the expression howto, just to get yourself more familiar with them: http://www.mapserver.org/mapfile/expressions.html


-jeff


--
Jeff McKenna
MapServer Consulting and Training Services
http://www.gatewaygeomatics.com/





Oz Nahum wrote:
Hi Everyone,

I am trying to display an ESRI ASCII Raster with map file in a contoured form.

Despite following the documentation here:
http://mapserver.org/input/raster.html#how-are-rasters-added-to-a-map-file
I fail, and get an empty map...

Here's is what I try in the mapfile:

MAP



 #IMAGETYPE     JPEG
 #                             "minx           miny            maxx
       maxy"
 EXTENT         3366307.654280 5813354.151378 3367797.654280 5814955.151378
 SIZE           640 480

 IMAGECOLOR     255 255 255
 FONTSET        "/home/oz/safira/Safira2/trunk/Safira2/DATA/fonts/fonts.list"



#####################################

 # Background color for the map canvas -- change as desired
 #if another color uncomment
 #IMAGECOLOR 192 192 192
 IMAGEQUALITY 100
 IMAGETYPE jpeg
 OUTPUTFORMAT
   NAME jpeg
   DRIVER 'GD/JPEG'
   MIMETYPE 'image/jpeg'
   IMAGEMODE PC256
   EXTENSION 'jpeg'
 END


 # Legend
 LEGEND
     STATUS embed
     #IMAGECOLOR 255 255 255
     POSITION ll
   #STATUS ON
   KEYSIZE 10 10
  LABEL
        TYPE truetype
        FONT "arial"
        COLOR 0 0 0
        SIZE 8
        ANTIALIAS true
   END
 END



### SCALEBAR
       SCALEBAR
       #ALIGN center
       INTERVALS 4
       POSITION ul #ur
       SIZE 200 10
       #Black bounding box
       OUTLINECOLOR 0 0 0
       STATUS embed
       UNITS kilometers
       LABEL
       TYPE truetype
        FONT "arial"
        COLOR 0 0 0
        SIZE 8
        ANTIALIAS true
       END
       END

 LAYER
   NAME 'W_PCE_in_GW'
   TYPE RASTER
   DUMP true
   TEMPLATE fooOnlyForWMSGetFeatureInfo
   EXTENT 3365691.535626 5813306.316297 3368142.408444 5815201.783992
   DATA 
'/home/oz/safira/Safira2/trunk/Safira2/SzenarioA/ScALayout1/W_PCE_in_GW.asc'
   METADATA
     'ows_title' 'W_PCE_in_GW'
   END
   STATUS ON
   CLASSITEM "[pixel]"
   #MAXSCALE 500000
   CLASS
       NAME "NO DATA"
       EXPRESSION (([pixel] == -9999))
       COLOR 0 0 255
        STYLE
        #SYMBOL 0
        #SIZE 4
        #OUTLINECOLOR 0 0 255
        #COLOR 243 162 0
      END
   END
   CLASS
       NAME "0 - 5"
       EXPRESSION (([pixel] >= 0 AND ([pixel] <=5))
       COLOR 200 0 0
        STYLE
        SYMBOL 0
        SIZE 2
        OUTLINECOLOR 0 0 0
        #COLOR 243 162 0
      END
   END
   CLASS
       NAME "5 - 10"
       EXPRESSION (([pixel] > 10 AND [pixel] <=20))
       COLOR 243 162 0
   END
   CLASS
       NAME "2 - 50"
       EXPRESSION (([pixel] > 20 AND [pixel] <=50))
       COLOR 0 200 0
   END

   TRANSPARENCY 100
   PROJECTION
   'proj=longlat'
   'ellps=WGS84'
   'datum=WGS84'
   'no_defs'
   END
 END



END

I also attach the raster file as zip.

Can someone tell me what am I doing wrong ?





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