HI all,<br><br><br>I was working with volume interpolation with nearly no problem following the GRASS documentation and the grassbook for a UTM location.<br><br>But working with a Lat-Long location is creating many doubts in my mind.<br>
<br>First, I don't know v.vol.rst really works with Lat-Long, since all the examples I saw were in UTM location. <br><br>If yes, my location is:<br><br>RASS 6.4.0RC4 (Transect11):~ > g.region -p<br>projection: 3 (Latitude-Longitude)<br>
zone: 0<br>datum: wgs84<br>ellipsoid: wgs84<br>north: 10:57:00.288311S<br>south: 11:03S<br>west: 78:49:12W<br>east: 77:45:13.757688W<br>nsres: 0:00:00.988219<br>ewres: 0:00:00.988219<br>
rows: 364<br>cols: 3884<br>cells: 1413776<br><br>And I was setting t=0 b=-2200 tbres=20... to have 100 depths. But I don't unterstand how should be res3, since I'm not using a UTM location. Should I convert, let's say "10 meters" to decimal degrees, and using the result to set "dmin"?<br>
<br>Second, at v.vol.rst, I don't understand how to set "dmin"? Is the same thing as above?<br>
<br>Basically I have a raster map with multibeam (bathymetry) along the 11 degree South parallel, and many CTDs measurements in the water column. <br><br>Please see here to understand what I mean: <a href="http://picasaweb.google.com/chris.for.lists/Map#5333477845413068514">http://picasaweb.google.com/chris.for.lists/Map#5333477845413068514</a><br>
<br>I would like to create a slice (not exactly a volume) to show the CTD data over this 3D surface using nviz.<br><br>Thanks in advance for any help.<br><br>PS: I'm using GRASS 6.4.0 RC4.<br><br>Best regards,<br>Christian<br clear="all">
<br>-- <br>Christian Ferreira<br>Oceanographer<br>IFM-GEOMAR Leibniz-Institute of Marine Sciences<br>Kiel - Germany<br><br>Poseidon Linux team<br><a href="http://www.poseidonlinux.org" target="_blank">http://www.poseidonlinux.org</a><br>