Hi, I have a raster river (processed with r.thin) which I want to transfrom to a vector. Therefore I use r.to.vect with the lines option. However, the raster has two different values representing e.g. habitat quality (good/bad) for single segments (group of raster cells). This information is written strangely to the vector attribute table as the lines are not broken at changes of habitat quality which is a reasonable behaviour of r.to.vect.
As I need the attributes in my vector table I thought about splitting the vector into small segments (<raster resolution) and updating the attribute table with v.what.rast. However when I use v.split the attribute table of the created map still has the same number of entries than before. So what do I miss here to get single rows and thus categories for the single created lines from v.split? Or is there any other/better way for such transformation of raster lines to vector lines incl. an update of the attribute table? Best regards, Johannes
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