Thanks Hamish, Росен. Unfortunately this is a quite big problem for GRASS if nobody from -dev ML can not explain how GRASS internal stuff works :( I hope You, Росен, will spend some time to add comments and examples to existing vector lib functions to make them more non-ūbercoder friendly.
On Spearfish example that I used to test my initial version of my module I managed to get "flat" buffer ends instead of "round caps" by setting tolerance to 1000. Still I have no idea why it works and how large should tolerance value bee for other buffer sizes/locations. I will take a look on Vect_line_parallel solution as it will be not so hackish. Thanks for hints! Maris. 2008/5/18 Hamish <[EMAIL PROTECTED]>: > Maris: >> I was going to use Vect_line_buffer function but was unable to >> understand it's tolerance parameter. Could somebody >> extend a bit documentation to make it more clean what does it mean. > > I am not 100% sure, > >> For my module I need to create buffer around line without any "round >> caps" at line end -> buffer must look like square and not extend >> beyond input line end. Ideas how to tweak tolerance setting >> to get such functionality out of Vect_line_buffer? > > maybe 'v.parallel distance=' for both left and right side of line? > > or v.segment / v.lrs.segment with offset. > > > Hamish > > > > > >
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