[GRASS-user] What to do with the output of v.strahler? Coloring a
ssefick at gmail.com
Sun Jul 12 08:39:36 EDT 2009
Hamish et al.,
The problem that I am having is that the output of v.strahler writes
its results to a text file. I don't know how to merge this into a
vector called stream order. I will look into your sugesstions, but I
don't knw if I understand them.
On Sun, Jul 12, 2009 at 12:57 AM, Hamish<hamish_b at yahoo.com> wrote:
> stephen sefick wrote:
>> I would like to use the stream orders to color the stream vectors.
>> How would I go about doing this?
> If using a recent version of grass use the v.colors script.
> It acts like r.colors but uploads RGB values to a DB column, typically
> called "GRASSRGB".
> Then use 'd.vect -a' (or GUI equivalent) to render using those rules.
>> My thought is to make the stream vector into a raster after I have
>> attached the stream orders based on a common identifier (line?).
>> My thought is to use R to do the merging, but this is a half
>> backed idea right now.
> v.net modules can isolate connected paths, search archives and help pages
> for examples. r.cost is another way to do that.
Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods. We are mammals, and have not exhausted the
annoying little problems of being mammals.
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