[GRASSLIST:484] Re: measure lenght of vector

# Sets domain part of From: and local addresses in outgoing mail. gacp at d-konstruktors.org
Tue Jun 24 04:18:14 EDT 2003


On Tue, 24 Jun 2003, Radim Blazek wrote:

[I have a question: how can I measure the lenght of a segment of a 
vector?]

> What do you mean by 'segment', one line, a part of the line (defined by 2 points
> or start/end offset) or something else?
> Do you want to measure few segments interactively on monitor or 
> many segments noninteractively?

Sorry if my wording was vague.  By ``segment'' I meant the second, a 
fraction of ONE line in a vector map, defined between two points.  And 
there is only need to measure a few of them, perhaps interactively.  I 
thought of `cropping' the vector map (a shoreline from GMT) by setting the 
region and <vector utility similar to r.resample>, but then how can I measure the 
length of that vector? 

TIA


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