[gdal-dev] projection of GDAL and ArcMap

Dear All, I'm trying to project a shapefile from Transverse Mercator projection with Krasovsky 1940 datum to Lambert Conformal Conic with D_Sphere_ARC_INFO datum by ArcMap and GDAL. I project the shapefile by importing it to the ArcMap which is with the target projection in advance. There is a

[gdal-dev] transformation from WGS84 to Sphere

Dear all, i am trying to projection a shapefile from geodatic projection in WGS84 datum to geodatic projection in sphere datum by using the utility "ogr2ogr ". I defined the original projection as: '+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs' and the target projection as : '+proj=longlat

[Gdal-dev] shifting in modis data reprojection

Hi, I am now dealing with the reprojection of modis 500m data to WGS84 by gdalwarp. I defined the original and target projection parameters of modis data as srs='+proj=sinu +R=6371007.181 +nadgri...@null +wktext' trs='+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs' and found that the resu

Re: [Gdal-dev] default pixel size in gdalwarp

Dear Frank, Thank you very much! By the way, is there any smaple scripts on how to use the AutoCreateWarpedVRT() in python? Regards, Agnes Frank Warmerdam wrote: > > agnes123 wrote: >> Frank, >> >> Thanks for your reply. >> >> Do you

Re: [Gdal-dev] default pixel size in gdalwarp

Frank, Thanks for your reply. Do you know if python can use the function GDALSuggestedWarpOutput2() ? I searched on web and found only the C/C++ examples. Regards, Agnes Frank Warmerdam wrote: > > agnes123 wrote: >> >> Dear all, >> >> i have one questio

[Gdal-dev] default pixel size in gdalwarp

Dear all, i have one question on the default pixel size in gdalwarp. In gdalwarp, we can use -tr to determine output pixel size in x and y direction, however, if i omit the argument -tr , gdal will have a default pixel size value which is in target projection units. For example, if the orgin