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<p>I am trying to create a DEM from a bathymetric contour lines. 
Contours are in vector format and the elevation value is negative (integers). To 
create the surface I have converted the contours in raster (<a href="http://v.to">v.to</a> rast) 
and then I have used r.surf.contour, but It doesn't work (there is no error but the resulting output raster<span id="result_box" class="" lang="en"><span class=""></span> <span class="">is exactly the same </span>as the previous one, without any interpolation)</span>. <br></p><p>This are my region settings:</p><p></p><p>

</p><p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">g.region -p -a
raster=contours@iiaa nsres=1 ewres=1<span style>                       </span></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">projection: 1 (UTM)</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">zone:<span style>       </span>30</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">datum:<span style>      </span>etrs89</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">ellipsoid:<span style>  </span>grs80</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">north:<span style>      </span>4818927</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">south:<span style>      </span>4791484</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">west:<span style>       </span>486512</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">east:<span style>       </span>601275</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">nsres:<span style>      </span>1</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">ewres:<span style>      </span>1</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">rows:<span style>       </span>27443</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">cols:<span style>       </span>114763</span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Cambria","serif"" lang="EN-US">cells:<span style>      </span>3149441009</span></p><p class="MsoNormal" style="margin-bottom:0.0001pt"><br><span style="font-family:"Cambria","serif"" lang="EN-US"></span></p><p class="MsoNormal" style="margin-bottom:0.0001pt"><br><span class="">I need a DEM of very high resolution of a wide area. I am using a computer with large capacities for it.</span></p><p class="MsoNormal" style="margin-bottom:0.0001pt"><span class=""><br></span></p>

Could 
someone help me please?<p></p>
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