args: rast, nbands, options=NULL - Return the raster tile selected bands as a single portable network graphics (PNG) image (byte array). If 1, 3, or 4 bands in raster and no bands are specified, then all bands are used. If more 2 or more than 4 bands and no bands specified, then only band 1 is used. Bands are mapped to RGB or RGBA space.
| Name | Type | Mode |
|---|---|---|
| rast | USER-DEFINED | IN |
| options | ARRAY | IN |
| rast | USER-DEFINED | IN |
| nbands | ARRAY | IN |
| options | ARRAY | IN |
| rast | USER-DEFINED | IN |
| nbands | ARRAY | IN |
| compression | integer | IN |
| rast | USER-DEFINED | IN |
| nband | integer | IN |
| options | ARRAY | IN |
| rast | USER-DEFINED | IN |
| nband | integer | IN |
| compression | integer | IN |