GdalTools: clipping based on a shapefile mask

[brushtyler]

It will be useful to add the possibility of clipping based on a shapefile mask. This can be done with the gdal_rasterize and the option burn, eg:

gdal_rasterize -i -burn 255 -b 1 -b 2 -b 3 -l [SHAPELAYER] [SHAPEFILE] [RASTER]

this results ion setting all three bands at 255 for the area outside the shapefile in input.

Thanks Stefano Salvador for the suggestion.

[lutra]

apparently there is also a way to do it with gdalwarp, and adding at the same time the alpha channel to the output raster, ex:

gdalwarp -of GTiff -r lanczos -dstalpha -cutline shapefile.shp raster_input.tif raster_output.tif

would be nice too to add this options too in gdalwarp

[lutra]

PS Thanks to Pedro Venâncio for the suggestion

[brushtyler]

Replying to lutra:

apparently there is also a way to do it with gdalwarp, and adding at the same time the alpha channel to the output raster, ex:

gdalwarp -of GTiff -r lanczos -dstalpha -cutline shapefile.shp raster_input.tif raster_output.tif

I know the -cutline option since the Hackfest when Tim told me about it. Thanks for reporting it, I forgot to add these information to this ticket.

would be nice too to add this options too in gdalwarp

So,

1. improving the clipper (clipping based on a shapefile mask)
2. add the -cutline option in the gdalwarp tool too.

[brushtyler]

Added -cutline option to gdalwarp tool (r15476)

[billywill]

Works for me in Win7 in trunk use cutline in gdalwarp. Why is ticket still open?

[brushtyler]

I want to add it to the Clipper tool, so it can be used to clip whatever kind of layer.

[brushtyler]

Fixed in r15712.