[Qgis-user] Problems using TIN tool
Nicolas Cadieux
nicolas.cadieux at archeotec.ca
Tue Nov 10 12:08:49 PST 2015
Hi,
I normally use the gdal raster interpolation tool (what you are using) rather than the TIN tool for the same reason. The TIN tool work well with a few points. I don't know why exactly.
If you are non commercial, and have under a million points, you could use lastools to do the TIN. I you have line across your DEM, it means you have busted the lastools license.
Nicolas Cadieux M.Sc.
Les Entreprises Archéotec inc.
8548, rue Saint-Denis Montréal H2P 2H2
Téléphone: 514.381.5112 Fax: 514.381.4995
www.archeotec.ca
On Nov 10, 2015 1:46 PM, "hersala [via OSGeo.org]" <ml-node+s1560n5235579h10 at n6.nabble.com> wrote:
Dear QGIS users, Do you know if the Interpolation Tool (TIN method) has a defined limitation in the number of points to be interpolated (or in any other limitation). I ask this because I have no problem in create a DEM using the Raster/Analysis/Grid (Interpolation) tool. But I when I try with TIN interpolation, I obtain a "empty" raster DEM layer with "nan" as minimun and maximun values. In both cases the shp file used as input has ~100.000 DGPS points, is it too big to be used with TIN interpolation? I'm using QGIS 2.8.2-Wien in MS-Windows. Thanks in advance! Hernán
_______________________________________________
Qgis-user mailing list
[hidden email]
List info: http://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
If you reply to this email, your message will be added to the discussion below:
http://osgeo-org.1560.x6.nabble.com/Problems-using-TIN-tool-tp5235579.html
To start a new topic under Quantum GIS - User, email ml-node+s1560n4125267h38@n6.nabble.com
To unsubscribe from Quantum GIS - User, click here .
NAML
--
View this message in context: http://osgeo-org.1560.x6.nabble.com/Problems-using-TIN-tool-tp5235579p5235592.html
Sent from the Quantum GIS - User mailing list archive at Nabble.com.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20151110/40ab3bc8/attachment-0001.html>
More information about the Qgis-user
mailing list