Dear All,
What will be the projection type If I specify --geocentric option to osgdem. ie
whether it'll be UTM/ECEF/Flat/ECI.
The command I used is osgdem --geocentric -t 77-12_geo_wgs84.tif -d N12E77.hgt
-l 4 -o terrain.ive
Gdal info of source files are given below
Driver: GTiff/GeoTIFF
Files: 77-12_geo_wgs84.tif
Size is 5961, 6073
Coordinate System is:
GEOGCS["WGS 84",
DATUM["WGS_1984",
SPHEROID["WGS 84",6378137,298.257223563,
AUTHORITY["EPSG","7030"]],
AUTHORITY["EPSG","6326"]],
PRIMEM["Greenwich",0],
UNIT["degree",0.0174532925199433],
AUTHORITY["EPSG","4326"]]
Origin = (76.992187500000000,13.025965925032700)
Pixel Size = (0.000169547491327,-0.000169547491327)
Driver: SRTMHGT/SRTMHGT File Format
Files: N12E077.hgt
Size is 1201, 1201
Coordinate System is:
GEOGCS["WGS 84",
DATUM["WGS_1984",
SPHEROID["WGS 84",6378137,298.257223563,
AUTHORITY["EPSG","7030"]],
TOWGS84[0,0,0,0,0,0,0],
AUTHORITY["EPSG","6326"]],
PRIMEM["Greenwich",0,
AUTHORITY["EPSG","8901"]],
UNIT["degree",0.0174532925199433,
AUTHORITY["EPSG","9108"]],
AUTHORITY["EPSG","4326"]]
Origin = (76.999583333333334,13.000416666666666)
Pixel Size = (0.000833333333333,-0.000833333333333)
Thank you!
Cheers,
Vijeesh
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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=36923#36923
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