Hi everybody
I have a PointSHP with Z field value that represents the survey on a step vineyard: points have
been token along base and edge of steps to represent slope breaks.
In order to build a TIN (DEM) I created a line SHP and drew a series of lines linking related
points (respecting morphological alignements).
Then I tried to build a triangulagion TIN (DEM) by "Interpolation TIN" tool using my points with
their Z elevation field and my breaklinesline SHP to constrain triangulation inside each slope
or step.
But the TIN obtained is a regular inclined surface that follows the general slope of the whole
survey given by mean of z value of points: no steps no slopes.
Where I miss? What is the way to build a TIN from points with constrain lines?
I send an image that represents the points and breaklines on a orthophoto foreground and beside
the same vector elements on the resulting TIN by interpolation.
Thanks in advance.
--
/_*Riccardo Casoli*_, Geologo(email:[email protected] <mailto:[email protected]>;
cell:3289026131)/
Studio Associato Risorsaterra
di Barbonaglia, Casoli, Colombo, Cravello
Agricoltura, geologia, foreste
via Coda, 22/e
13900 Biella Chiavazza
Tel e fax: 01523346
e-mail: [email protected]
C.F. e P.Iva: IT02413380029
_______________________________________________
Qgis-user mailing list
[email protected]
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
