[Proj] Creating a Custom EPSG Entry
Ryan Ollerenshaw
ollerery at engr.orst.edu
Tue Sep 5 14:01:56 EDT 2006
I am working with some Mars datasets that i want to display using
MapServer so of course i need to use a projection specified in the proj4
EPSG file, but i am not totally sure how to create my own custom
projection. Below are the projection parameters for the data that i am
using. I think that the correct EPSG entry would be close to:
*+proj*=???? +a=3396190 +b=3396190
any help would be great.
ProjectionName = SimpleCylindrical
CenterLongitude = 354.60611161722
TargetName = Mars
EquatorialRadius = 3396190.0 <meters>
PolarRadius = 3376200.0 <meters>
LatitudeType = Planetocentric
LongitudeDirection = PositiveEast
LongitudeDomain = 360
MinimumLatitude = -2.0994573340362
MaximumLatitude = -1.81536402836
MinimumLongitude = 354.56314275078
MaximumLongitude = 354.64908048367
UpperLeftCornerX = -2549.6954683585 <meters>
UpperLeftCornerY = -107601.70179235 <meters>
PixelResolution = 4.5530276220687 <meters/pixel>
Scale = 13018.743228352 <pixels/degree>
TrueScaleLatitude = 0.0
LineProjectionOffset = 23633.5
SampleProjectionOffset = -559.5
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