I'm currently looking at re-projecting a tiff file I have of population density. The file is using The Mollweide Projection.
I have come to understand that Gdal would allow me to do this. I have downloaded the software and have been through a few really good basic tutorials Robert Simmon blog.
I am now trying to apply the same steps to the file I have. I've typed the following command: gdalwarp -t_srs EPSG:3395 -r lanczos -wo SOURCE_EXTRA=1000 -co COMPRESS=LZW F:\ArcGis\Gdal\NE1_50M_SR_W\DensityMaps\Pop1Warpped.tif F:\ArcGis\Gdal\NE1_50M_SR_W\DensityMaps\Pop1Warpped_Mercator.tif
The cmd window just displays a 0, I've let it run for a couple of hours as I thought it might be a problem of file size. I was thinking that it just meant that the software was processing the file. The original file is 340mb.
I've got a feeling that my gdalwarp command might be wrong or the file size is too big. With my little knowledge of python or gdal the solution is eluding me.
Original File gdalinfo:
C:\Users\ttomt>gdalinfo F:\ArcGis\Gdal\NE1_50M_SR_W\DensityMaps\Pop1Warpped.tif Driver: GTiff/GeoTIFF Files: F:\ArcGis\Gdal\NE1_50M_SR_W\DensityMaps\Pop1Warpped.tif Size is 141988, 60942 Coordinate System is: PROJCS["World_Mollweide", GEOGCS["GCS_WGS_1984", DATUM["D_WGS_1984", SPHEROID["WGS_1984",6378137.0,298.257223563]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.017453292519943295]], PROJECTION["Mollweide"], PARAMETER["False_Easting",0.0], PARAMETER["False_Northing",0.0], PARAMETER["Central_Meridian",0.0], UNIT["Meter",1.0]] Origin = (-17619594.547443531000000,8750529.461868489200000) Pixel Size = (250.000000000000000,-250.000000000000000) Metadata: AREA_OR_POINT=Area Image Structure Metadata: COMPRESSION=LZW INTERLEAVE=BAND Corner Coordinates: Upper Left (-17619594.547, 8750529.462) ( 4d35'30.71"W, 83d37'50.88"N) Lower Left (-17619594.547,-6484970.538) (107d 3'58.73"E, 55d59' 2.97"S) Upper Right (17877405.453, 8750529.462) ( 15d11'38.88"E, 83d37'50.88"N) Lower Right (17877405.453,-6484970.538) (103d21'55.35"W, 55d59' 2.97"S) Center ( 128905.453, 1132779.462) ( 1d17'47.23"E, 9d10'35.76"N) Band 1 Block=256x256 Type=Float32, ColorInterp=Gray