[GRASS-dev] Re: [GRASS-user] r.mfilter.fp seg fault

Markus Neteler neteler at osgeo.org
Thu Mar 12 07:18:29 EDT 2009

On Thu, Mar 12, 2009 at 11:45 AM, Glynn Clements
<glynn at gclements.plus.com> wrote:
> Only the fact that it's not 100% backwards compatible, although I have
> no idea whether anyone will actually want the old behaviour.

This might be unlikely.

> Apart from the use of integers, r.mfilter reads nulls as zero, while
> r.mfilter.fp reads nulls as null and propagates them (i.e. the result
> cell will be null if any cell in the moving window is null).

Could we have the same mechanism as in r.series (-n flag)?


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