From grass-lists-owner@max.cecer.army.mil Thu Apr 7 16:27:52 1994
Date: Fri, 8 Apr 94 08:58:55 EST
From: simon@artemis.earth.monash.edu.au (Simon Cox)
Sender: grass-lists-owner@max.cecer.army.mil
Reply-To: grassu-list@max.cecer.army.mil
To: grassu-list@amber.cecer.army.mil
Subject: complement of v.prune?
Content-Length: 1195No responses first time around, so I'll ask again!
-----Is there a way to do the opposite of v.prune - ie ADD vertices
along lines to keep them to a set spacing?I suspect this
could be done by exporting the file using v.to.sites using the
-i option, and then re-importing the sites file into a vector
(I do not look forward to editting the ascii file, however!) -
except that the -i flag in v.to.sites doesn't work for me!
(I've filed a bug report).Thanks Simon Cox
----
______________________________________________________________________________
from May 1st (or thereabouts) __ L Dr Simon Cox
CSIRO Div. Exploration & Mining ,~' L_|\ VIEPS Dept of Earth Sciences,
39 Fairway, PO Box 437, ,-' \ Monash University, Clayton
Nedlands, WA 6009, Australia ( soon \ Vic 3168, Australia
Phone +61 9 389 8421 X<~~~~~~~~~ / Phone +61 3 905 5762
Fax +61 9 389 1906 L,~' "\_x/ Fax +61 3 905 5062
s.cox@dem.csiro.au u simon@artemis.earth.monash.edu.au
______________________________________________________________________________
The only way I know would be to mess with the ascii, sorry. Use awk.
It may be a pain, but if v.to.sites -i doesn't work I don't know of a
better way.
You could do it as a sites file or as a dig_ascii file.
If sqrt ( (x2 - x1)^2 + (y2-y1)^2 ) > threshold then newE=0.5(x2+x1);
newN=0.5(y2+y1) printf("%s %s\n%s %s\n", newE, newN, x2, y2) >
"filename". Or something to that effect. You'd also need a
test loop to be sure that the distance between point2 and newE/N is
less than your threshold.
-sue