Hi,
I was trying to use d.polar on an aspect map.

I've been able to produce EPS output w/o any problem, except when using a 
raster MASK. My mask leaves out many (about 95%) of the cells in the 
whole region. Without MASK it took 2 minutes for d.polar to complete.

If I run d.polar on the same map w/ this MASK, I get no results, even 
though I've been waiting (patiently :-) for more than 1 hour.

Any suggestion about this problem? I saw d.polar is a shell script, thus 
possibly slow, but I'm confused because on a larger number of cells it 
works well.

Best,
Stefano

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