mapserv not following extents?
Kelly Koehn
knkoehn at HOTMAIL.COM
Thu May 18 07:48:02 PDT 2006
I've been working with the USGS Counties and States maps (located at
nationalatlas.gov) and the GIS maps from the NOAA and I've been running into
a stumbling block. I've been able to get the maps to display but it seems
that the mapserv cgi app only pays attention to one of the extents.
I'll copy my map file below but for my example use the following line:
EXTENT -100.05 37.1 -94.85 37.85
It seems to fit the -100.05 and -94.85 just fine on the map and that gives
me the coordinates I need on the X axis but it never seems to follow on the
Y-axis. Its like it tries to create something porportional. What the end
result is a map that is squished from top to bottom. (see at
http://www.aspiredillusion.com/cgi-bin/mapserv?map=/nexrad/map/nexrad.map&mode=map
)
Has anyone else experienced this or know of a way around it? Here is the -v
info from mapserv:
MapServer version 4.9 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
OUTPUT=SWF OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=FREETYPE SUPPORTS=WMS_SERVER
SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT
SUPPORTS=WCS_SERVER SUPPORTS=GEOS INPUT=EPPL7 INPUT=POSTGIS INPUT=OGR
INPUT=GDAL INPUT=SHAPEFILE DEBUG=MSDEBUG
Thanks
Kelly Koehn
---------
Copy of nexrad.map
---
MAP
IMAGETYPE GIF
SIZE 400 400
SHAPEPATH "/nexrad/map"
TRANSPARENT ON
UNITS DD
EXTENT -100.05 37.1 -94.85 37.85
FONTSET "font.set"
LAYER
NAME c100000jan2902
DATA c100000jan2902
STATUS DEFAULT
TYPE POLYGON
#FILTERITEM county
#FILTER "Sedgwick County"
LABELITEM "COUNTYNAME"
CLASS
NAME "US Counties"
OUTLINECOLOR 0 0 0
LABEL
TYPE truetype
FONT arial
SIZE 6
ANTIALIAS TRUE
COLOR 255 0 0
OUTLINECOLOR 255 255 255
ANGLE 0
PARTIALS false
END
END
END
END
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