[GRASS-user] 1)Color rules problem loading srtm.hgt 2)Merge two raster

[Nicola S.]

Hi all, this my first post here....I hope to be lucky ;)

I'm trying to load a srtm.hgt (bathymetry) using r.in.srtm but during
the process I receive this error

----cut---
Your color rules do not cover the whole range of data!
(rules -500.000000 to 8850.000000 but data 0.000000 to 65535.000000)
---cut-----

at the end I get the raster but it is very messy, it looks like a
series of colored lines. Any one have some advices?

Other problem, I would like to merge two or more rasters, which
command i have to use? There is a way to have an homogeneous color
palette?

Thank you.

Nicola

Thank you very much

-- 
Nicola Scarselli
Department of Geology
Royal Holloway University of London
Egham, Surrey
TW20 0EX
United Kingdom