[Qgis-user] Interpolation of contour lines

Saber Razmjooei razmjooeis at faunalia.co.uk
Mon Jun 13 11:50:10 PDT 2011


I guess Mars meant converting a contour lines of 10 metre intervals to 5
metre.
Best to do it using GRASS (plugin). Here is a nice Wiki page:
http://grass.osgeo.org/wiki/Contour_lines_to_DEM

Once you have it as DEM (i.e. raster) you can use r.contour in GRASS or
Contour tool under GDAL in QGIS (Raster > Contour) to convert it to 5
metre contour vector.

Saber





On Mon, 2011-06-13 at 11:31 -0700, Mars Sjoden wrote:
> Why not buffer a left or right side of your contour line @ 5m?
> 
> I presume your contour lines are vector polylines.
> 
> Unless you mean to interpolate from an existing DEM?
> 
> mars
> 
> 2011/6/13 Vincent Blanqué <vblanque at oriondata.cl>
>         Hi,
>         
>         I have contour lines each 10 meters and I would like to
>         interpolate each 5 meters. Is there any Qgis functionality to
>         generate these? Any plugin? Or is it possible with ogr2ogr?
>         
>         thx,
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