Am Fr., 20. Nov. 2020 um 11:47 Uhr schrieb Stéphane Mottelet < [email protected]>:
> Hi again, > Le 20/11/2020 à 11:30, P M a écrit : > > OK, > some more background: > > I actually want to perform a delaunay triangulation on a set of > X-Y-Z-coordinates. > > I suppose you mean a triangulation of scattered X-Y-Z but you call mesh2d > with X-Y only ? > Yes, indeed. And there is the bug in my data. As x-y coordinates repeat, they do have a different z in the original data. But since I call mesh2d with x-y only there are indeed identical points. > > I know of CGLAB, but it seems only available to Scilab 6.0.x, while I am > on Scilab 6.1.0 > > CGLAB is based on a very old version of CGAL and thus is very hard to > maintain as is. There is a lot of work... > I am currently installing Scilab 6.0 to try CGLAB... > > So the nearest thing to a delaunay triangulation I found is mesh2d... > > Yeah. Suboptimal choice indeed... > > Because of the delaunay triangulation, I am not sure if the order of > points may change. > > What do you mean ? > The scattered points represent a 3D surface geometry. If the points will be resorted, I could imagine that the triangulation does not fit to the surface geometry anymore. > > About unique: > > The result I get is actual of same size as the input matrix...I therefore > do assume that each point is unique in the first place (which they actually > should). > > What does repeat are individual x, y, z coordinates, but in different > combinations. > So the actual point is different. > > > e.g.: x may repeat, but than the y-z-coordinates are different from > point to point > > Could you share the data (you can send me a private message) ? > > S. > > > Thanks, > Philipp > > > > Am Fr., 20. Nov. 2020 um 10:57 Uhr schrieb Stéphane Mottelet < > [email protected]>: > >> Hi Philipp, >> >> Glad to hear that some people use mesh2d. I know we have to improve the >> error message by getting the numbers at the Fortran level... There is also >> other errors which are not easy to fix without knowing the number of the >> problematic point (point too close to the boundary, for example). Can you >> file a bug on BZ ? >> >> S. >> Le 20/11/2020 à 10:03, P M a écrit : >> >> Dear all, >> >> using the mesh2d - function I get an error: mesh2di: some points are >> identical. >> >> >> How to identify these points and remove the duplicates? >> >> There are roughly 500'000 coordinates.... >> >> Thank you, >> Philipp >> >> _______________________________________________ >> users mailing >> [email protected]https://antispam.utc.fr/proxy/1/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/lists.scilab.org/mailman/listinfo/users >> >> <https://antispam.utc.fr/proxy/2/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/antispam.utc.fr/proxy/1/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/lists.scilab.org/mailman/listinfo/users> >> >> -- >> Stéphane Mottelet >> Ingénieur de recherche >> EA 4297 Transformations Intégrées de la Matière Renouvelable >> Département Génie des Procédés Industriels >> Sorbonne Universités - Université de Technologie de Compiègne >> CS 60319, 60203 Compiègne cedex >> Tel : +33(0)344234688http://www.utc.fr/~mottelet >> <https://antispam.utc.fr/proxy/1/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/www.utc.fr/~mottelet> >> >> _______________________________________________ >> users mailing list >> [email protected] >> http://lists.scilab.org/mailman/listinfo/users >> <https://antispam.utc.fr/proxy/1/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/lists.scilab.org/mailman/listinfo/users> >> > > _______________________________________________ > users mailing > [email protected]https://antispam.utc.fr/proxy/1/c3RlcGhhbmUubW90dGVsZXRAdXRjLmZy/lists.scilab.org/mailman/listinfo/users > > -- > Stéphane Mottelet > Ingénieur de recherche > EA 4297 Transformations Intégrées de la Matière Renouvelable > Département Génie des Procédés Industriels > Sorbonne Universités - Université de Technologie de Compiègne > CS 60319, 60203 Compiègne cedex > Tel : +33(0)344234688http://www.utc.fr/~mottelet > > _______________________________________________ > users mailing list > [email protected] > http://lists.scilab.org/mailman/listinfo/users >
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