[GRASSLIST:8291] Re: masking a portion of a raster layer "by hand"

[Glynn Clements]

Jason Horn wrote:

> Does anyone know of a way to create a mask for a raster layer using  
> the mouse?  I'd like to mask off areas of interest in raster layers  
> that are determined by visual observation.

Export the raster to an image format, load it into an image editing
program which supports layers (e.g. GIMP), draw the mask on a new
layer, save it as a separate image and import it.

-- 
Glynn Clements <glynn at gclements.plus.com>