<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><DIV>Actually I just finished learning how to do all this, thanks to the all the great help here.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>You can review in the recent March Archive;</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>This is what I found to work for me.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>1. I restricted my region setting to the bounds of my contours. * reason for this, I was told large areas of blank space can really slow down the processing time.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><SPAN class="Apple-style-span">2. I forced the region settings to align to resolution also using "<FONT class="Apple-style-span" color="#FF0000">-a</FONT><FONT class="Apple-style-span" color="#000000">" ( or checking the "align to resolution..." check box under the "Bounds" tab for the "g.region" settings in gis.m</FONT></SPAN></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>3. Display region settings to make sure everything looks good. * make sure resolution is a whole number not some odd ball 5.0009345321 I was told this may cause problems.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Now you can go either of Two ways (as far as I know). Both ways worked fine for me.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><B>v.surf.rst</B> </DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>I essentially just inputted my vector map with contour data and specified the attribute column with the elevation info, named my raster output map... ** make sure your attribute column names are all in small caps in your vector table.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><B> v.to.rast + r.surf.contour</B></DIV><DIV><B><BR class="khtml-block-placeholder"></B></DIV><DIV>both methods worked fine for me.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>cheers.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Mars</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><SPAN class="Apple-style-span"><FONT class="Apple-style-span" color="#000000"> </FONT></SPAN></DIV><BR><DIV><DIV>On 24-Mar-07, at 7:04 AM, megha shyam wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><DIV>Please help me in creation of DEM.i have a vector layer contaning contour information.How to create a DEM model of this.Can you tell me the stpes to be followed</DIV> <DIV> </DIV> <DIV>shyam</DIV> <DIV> </DIV><DIV> <BR class="khtml-block-placeholder"></DIV><HR size="1"> Here’s a new way to find what you're looking for - <A href="http://us.rd.yahoo.com/mail/in/yanswers/*http://in.answers.yahoo.com/">Yahoo! 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