[GRASS-user] r.patch for stitching rasters?

[Boris Avdeev]

It does, but what formats support actual null layers? Of course I
might be able to find an unused rgb value and use it instead of NULL.
But what do you do if you don't have one?

Boris

On Nov 16, 2007 6:19 PM, Hamish <hamish_nospam at yahoo.com> wrote:
> Boris Avdeev wrote:
> > Yes, though I couldn't figure out how to make gdal_merge output NULLs
> > instead of 0s (and what formats support NULLs?).
>
> does it have any options like:
>
>   [-srcnodata "value [value...]"] [-dstnodata "value [value...]"]
>
>
> ?
>
> Hamish
>
>
>
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