I have combined and transformed two raster-maps with i.rectify, now I want
to combine those two maps as an overlay. I thought to use r.combine for this
and to create an overlay, normally this works correct but now I only get a
black area, so I mail to this group.
Both maps are grey-scale maps scanned and imported with r.in.sunrast. I trans-
formed one of the maps with i.rectify after an i.points.
When I look at this map and plot it to screen its correct and I can create an
overlay with another map.
Now I start r.combine, when I type
[1]: (k8543.new)
the part of the screen where this map should be plotted goes black, also orders
like (group 0-10 (k8543.new)) have no effect.
Is it possible that this happens because the maps are grey-scale ? or because
the have to much categories (255) ?
If there is anyone out there who knows this problem and knows the solution
please mail me ...
thanks--
Elwin
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ARCHITECTURE, MORPHOLOGY and INFORMATION-SYSTEMS
Elwin Koster email: ekoster@let.rug.nl
University of Groningen phone: (+31) 50 636 096
K.A.A. fax: (+31) 50 635 886
P.O. BOX 716
9700 AS Groningen
the Netherlands
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