newbie needs help correcting distorted map
Mike Jackson
mj at SCI.FI
Tue Oct 12 10:23:09 PDT 2004
Hi All,
I've just completed the tutorial, and tried to hack together my first
maps, but they seem to be distorted, especially the northern countries.
I tried the epsg 4326, and many others, just to experiment, but none of
them really had much effect on the output. I'm using the countries.shp
from freegis world data.
Here is my .map file:
MAP
IMAGETYPE PNG
EXTENT -179.999900 -89.999900 179.999900 83.627357
SIZE 1390 900 # fits my browser nicely
SHAPEPATH "geodata"
IMAGECOLOR 0 0 128 # navy blue
PROJECTION
"init=epsg:4326"
END
LAYER
NAME countries_interior
DATA countries
STATUS DEFAULT
TYPE POLYGON
CLASS
COLOR 82 82 82 # gray32
END
PROJECTION
"init=epsg:4326"
END
END
LAYER
NAME countries
DATA countries
STATUS DEFAULT
TYPE LINE
CLASS
COLOR 255 255 0 # yellow
END
PROJECTION
"init=epsg:4326"
END
END
END
Here is the head output from ogrinfo -al:
INFO: Open of `countries.shp'
using driver `ESRI Shapefile' successful.
Layer name: countries
Geometry: Polygon
Feature Count: 27320
Extent: (-179.999900, -89.999900) - (179.999900, 83.627357)
Layer SRS WKT:
GEOGCS["wgs84",
DATUM["unknown",
SPHEROID["wgs84",6378137,298.257223563]],
PRIMEM["Greenwich",0],
UNIT["degree",0.0174532925199433]]
cat: Integer (11.0)
na2: String (80.0)
Any ideas what I am doing wrong, and better yet how to correct it?
Thanks!
Mike
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