[GRASSLIST:4910] Problems with importing polar data
Anton B. Ivanov
abi at mipl.jpl.nasa.gov
Fri Nov 8 17:57:02 EST 2002
Hello GRASS gurus!
I am new to the GRASS program and it seems to be VERY powerful. However,
I have been a little frustrated trying to import my polar data into it.
Here's a problem : I have data (images) projected into a polar
stereographic projection (using some camera speicific software). I import
them using r.in.bin and set up proper lat/lon bounds for these images. The
projection setup is as ups (see PROJ_INFO file below).
However, when I'm trying display data, put a grid on it or make a
postscript map, the output projection look like a simple cylindrical or
latititude/longitude.
How do I tell GRASS to display my data in polar stereographic projection
and overlay grid on it?
Another problem is to project data from simple cylindrical projection
into polar stereographic (using r.proj) . I have no luck there either.
Any help will be highly appereciated!!!!
Thanks a lot in advance
Anton Ivanov
PS. here's PROJ_INFO and PROJ_UNITS pair for my location. I work with
Martian data, so geoid is that of Mars and no datum has been specified.
PROJ_INFO
----------------------------------
name: Universal Polar
Stereographic
proj: ups
ellps: mars_iau2000
a: 33961900.0000000000
es:0.0117373700
f: 169.8944472236
lat_0: -55.0000000000
lon_0: 0.0000000000
south: defined
-------------------------------
PROJ_UNITS
-------------------------------
unit: degree
units: degrees
meters: 59272.9493611000
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