[GRASSLIST:4444] RE:Two questions: 1. r.param.scale; usage and etc... an error got into my last post!!

Lars Forseth larsf at powertech.no
Mon Sep 9 16:47:53 EDT 2002


Hi! Hav to repost due to an error that sneaked into my first post; sorry for 
the inconvenience!

I have just - this weekend - installed GRASS5.0.0; on my SuSE 7.3 box. only 
problem was with NVIZ and libtcl.so.0 ; "ln libtcl.so libtcl.so.0" solved 
that. Congratulations to the GRASS team, well done :-)

So my questions;
1. In their book "Open source GIS" Neteler&Mitasova on page 114 gives an 
example of the usage of r.param.scale. This gives - with Spearfish data 
(elevation.dem) - not a very meaningfull result. Sent to a monitor the 
resulting datasett gives me a white rectangle covering the region. If I 
change the parameter size=7 to 3 I can see some small cells with mostly blue 
colors. Param=feature. What is wrong; if anything? (I have checked the syntax 
and this is 
the result every time). 

(By the way a good book :-)!)

2. Is there a way you can to a "density" analysis a la ArcView 
SpatialAnalyst; with sites (i e point) data? How?

Regards

Lars Forseth



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