Using this: >> dtm>gdalwarp -s_srs EPSG:4326 -t_srs EPSG:3857 -r bilinear -te -2 0037508.34 -20037508.34 20037508.34 20037508.34 -of GTiff globe.vrt globe_3857_gdal.tif Returned this message
>>Creating output file that is 194835P x 194835L. >>Processing input file globe.vrt. >>Using internal nodata values (eg. 0) for image merged.vrt. All my 'NoData' values are now '0' and I was wondering if there was a way to just keep them as 'NoData' (and still transparent when read by ArcMap - as the globe.vrt is now).
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