[GRASS-user] r.cross problems when overlaying layers with no-data

[Paulo van Breugel]

I am submitting this as a bug report, as I probably should have done to 
start with



On 06/13/2012 10:59 AM, Paulo van Breugel wrote:
> Hi
>
> When overlaying two layers that contain large areas of 'no data', 
> r.cross seems to run forever. Running an equally large areas without 
> 'no data' is no problem on the other hand.
>
> I tried to run r.cross for a much smaller area and the problem seems 
> to be that r.cross assigns some random value to areas with no-data, 
> even when using the -z flag. See the output of r.what for a point 
> where both input layers have no data:
>
> /r.what --v -f -n input=wdpaPNV at ConsStat 
> coordinates=1549281.412639,-1312241.263941
> easting|northing|site_name|wdpaPNV at ConsStat|wdpaPNV at ConsStat_label
> 1549281.412639|-1312241.263941||_30114_|no data; no data/
>
> Attached see also a screen shot, with the no-data area with seemingly 
> random pattern of colors.
>
> Paulo
>
>
> I am using GRASS GIS 7.0 on Ubuntu 12.04

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