> I have a bounding box with the dimensions below. > "BOX(8.07734039737749 54.4984986588244,15.1919565742587 > 57.7505109647578)" > I now want to make an empty raster using ST_MakeEmptyRaster, but I am not > sure about a few params. So maybe someone can help me? > > raster ST_MakeEmptyRaster(integer width, integer height, > float8 upperleftx, float8 > upperlefty, > float8 scalex, float8 > scaley, float8 skewx, float8 > skewy, > integer srid=unknown); > > ST_MakeEmptyRaster( 15.1919565742587 - 8.07734039737749, > 57.7505109647578 - 54.4984986588244, > 8.07734039737749, 57.7505109647578, > ?,?,?,? (no idea what to put in > skew and scale) > 4326); > > I am hoping that using the degrees in height, width calculations is ok?
Maybe it's would time for you to read a bit of the documentation... http://postgis.org/documentation/manual-svn/RT_ST_MakeEmptyRaster.html scale is the pixel size. skew is the rotation (kind of). Read this as well: http://en.wikipedia.org/wiki/World_file Pierre _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
