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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