[Qgis-user] Interpolation of contour lines

[Mars Sjoden]

Actually not so much "converting" as it would be "adding" based on existing
10m.

Could choose to merge the '5m buffered lines' afterwards, or not.

Of course if there is a DEM with 5m resolution or better, it would be
more accurate to use the Contour.plugin (need matplotlib installed) or
GRASS.

Just depends on what data is available and use case.



On Mon, Jun 13, 2011 at 11:50 AM, Saber Razmjooei <razmjooeis at faunalia.co.uk
> wrote:

> 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,
> >         _______________________________________________
> >         Qgis-user mailing list
> >         Qgis-user at lists.osgeo.org
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> >
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>
>
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