[GRASS-user] How to link or combine adjacent vector lines

sluedtke sluedtke at gfz-potsdam.de
Thu Feb 9 16:59:04 EST 2012

Dear friends, 

I have been trying for some hours now but could not find any solution. 

We do have a shape file of a river network,  but a bad one because single
rivers consist of multiple lines. Just think of the easiest example, a river
with one tributary. I would like to end up with an vector dataset that holds
2 lines for this example, one for the river and one for the tributary of
course. In my case, the dataset holds, just as an example, 10 lines, and a
distinct set of them makes either the river or the tributary. The lines of
each set are connected by the nodes of the single lines. 

Any ideas how to get ride of this format are very welcome. 

Thanks in advance, 


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