args: width, height, upperleftx, upperlefty, scalex, scaley, skewx, skewy, srid=unknown - Returns an empty raster (having no bands) of given dimensions (width & height), upperleft X and Y, pixel size and rotation (scalex, scaley, skewx & skewy) and reference system (srid). If a raster is passed in, returns a new raster with the same size, alignment and SRID. If srid is left out, the spatial ref is set to unknown (0).
| Name | Type | Mode |
|---|---|---|
| width | integer | IN |
| height | integer | IN |
| upperleftx | double precision | IN |
| upperlefty | double precision | IN |
| scalex | double precision | IN |
| scaley | double precision | IN |
| skewx | double precision | IN |
| skewy | double precision | IN |
| srid | integer | IN |
| width | integer | IN |
| height | integer | IN |
| upperleftx | double precision | IN |
| upperlefty | double precision | IN |
| pixelsize | double precision | IN |
| rast | USER-DEFINED | IN |