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<DIV><FONT face=Arial size=2>Hello,</FONT></DIV>
<DIV><FONT face=Arial size=2>I'm harris, i'm a student and </FONT><FONT
face=Arial size=2>I'm a new user of Grassgis 6.0. I started using Grass because
of an essay and i have to finish it to get my degree...So i have to
make a digital elevation model from some vector files.The vectors
are containing elevation info and was digitized to arcmap.So i
followed the following method :</FONT></DIV>
<DIV><FONT face=Arial size=2>I imported the ersi .shp,I had 4 shp
files so i made 4 vector files.Then I combined the 4
vector files to make them one. i used the v.patch command. Then i
think that i used v.clean to snap the common vector lines but i not so sure
if that was neccessary.was it? what other steps i must do? Then i tried to
connect from another esri shp (that was containing all the vectors together from
the begging) the dbf .i managed to connect the tables. My next step was to
make vector to raster so i used v.to.rast. an my command was</FONT></DIV>
<DIV><!--StartFragment --><FONT size=2> <EM>v.to.rast input=string
[layer=1] output=string [use=att] [column=elevation (</EM>the column that
contains elevation info iin my case.) </FONT><FONT size=3>is this correct? When
i did that i finally used v.surf.contour to make my dem. So i'm waiting for
hours for my dem to be done but it's procceding very slowly.</FONT></DIV>
<DIV>Is that the right way to combine vectors?Cause the first time i tried to
make my dem throught that way i got a very bad dem...V.patch
combines the dbf of each vector?i think that it isn't. </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>That's all, i not so sure if i did the right steps
in general and that's why i need your help anyway.If anyone could help me
id be very grateful.</FONT></DIV></BODY></HTML>