Hi,
I have two vector maps:
1. "soil_qality", containing areas, labeled with either 1 (good) or 2 (bad)
2. "owner", containing areas labeled with 1...3 (owner1, owner2...)
Finally I'd like to create a (vector)map and a table showing each owners
good and bad areas.
Questions:
1. Is it possible to get a list containing a line for each single area in a
vector map, showing its #, its acreage, its label?
Example:
number acreage feature
#001 2.345 1
#002 1.201 1
#003 0.023 2
: : :
: : :
2. Is it possible to patch the two maps AND(!) the features, to be able to
create a table with a line for each resulting area fragment?
Example
# #map_A #map_B acreage feature_Map_A feature_Map_B
#001 #001 #001 0.021 1 3
#002 #001 #002 0.812 1 1
#003 #002 #001 0.243 1 3
#004 #002 #003 0.381 1 2
#005 #003 #001 0.428 2 3
#006 #003 -- 0.320 2 n.a.
: : : : : :
: : : : : :
Note: I need the value for each single area, NOT summed up by category etc.
Note: I already tried v.patch but the resulting areas were labeled with the
label of either Map_A or Map_B or nothing, depending on the coordinates of
the label-point in the original maps.
Note: probably a database has to be used? How?
Note: GRASS-version is 5.3.0 with cygwin / Win NT 4
Many thanks
Jones
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