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location Minsk, Belarus
age 28
visits member for 2 years, 8 months
seen Feb 18 '13 at 11:30

Feb
18
awarded  Popular Question
Aug
1
comment What projection is this in GDAL classification
@Sean, In the end you may be right about the projection of the map in general. The grid is a Mercator as whuber described and can be aligned with google maps perfectly with basic stretching. But the map itself (the borders and cities layers) does not align with Google maps when stretched the same way as the grid :)
Aug
1
comment What projection is this in GDAL classification
wow! that's an answer!
Aug
1
accepted What projection is this in GDAL classification
Aug
1
comment Georeferencing with Quantum GIS and reprojecting to EPSG:900913
@Brad, thanks! It finally got through to me when Pablo answered that one should specify the X,Y coordinates in meters and not in degrees and therefor the coordinates are reference system specific. It is only the question of determining what the reference system is now.
Aug
1
comment What projection is this in GDAL classification
Thanks! This one doesn't line up with Google Maps, so it must be a different Mercator. Scale factor maybe? @whuber: What's your regression package? Is it publicly available?
Aug
1
awarded  Scholar
Aug
1
accepted Georeferencing with Quantum GIS and reprojecting to EPSG:900913
Jul
31
comment What projection is this in GDAL classification
Looks like the spacing between the parallels is decreasing towards the equator, and with an equal area cylindrical projections they should increase.
Jul
31
comment Georeferencing with Quantum GIS and reprojecting to EPSG:900913
Thanks! Do you know how to convert from lat/lon to this X,Y coordinate system? I googled for 'convert from lat lon to northing easting' but the calculators I found are zone specific(e.g. UTM with WGS84), as far as I understand they give the X,Y coordinate relative to a specified reference zone. I don't know where I can specify the zone in the referencer.
Jul
31
comment What projection is this in GDAL classification
@whuber, thanks! I'll try to figure out how to reproject from a cylyndrical projection to Meractor now.
Jul
31
comment Georeferencing with Quantum GIS and reprojecting to EPSG:900913
Yes, manually georferencing to Latidude, Longitude (if that's what you mean by ll). I expect gdal_translate to produce a georeferenced image, then gdalwarp to reproject the image based on the info imbedded in the image by gdal_translate and the provided traget SRS to the Google Mercator (EPSG:900913). I suppose it is the same as generating a World file in QGIS and using it to reproject the original image with gdalwarp. I guess something is wrong with my gdal_translate step.
Jul
30
revised Georeferencing with Quantum GIS and reprojecting to EPSG:900913
added 126 characters in body
Jul
30
revised Georeferencing with Quantum GIS and reprojecting to EPSG:900913
edited body
Jul
30
asked Georeferencing with Quantum GIS and reprojecting to EPSG:900913
Jul
30
comment What projection is this in GDAL classification
Thanks! I'll try to re-project with this source projection type.
Jul
29
awarded  Student
Jul
29
awarded  Supporter
Jul
29
awarded  Editor
Jul
29
revised What projection is this in GDAL classification
added 177 characters in body