[Scilab-users] mesh2d - finding identical points

[P M]

OK,
some more background:

I actually want to perform a delaunay triangulation on a set of
X-Y-Z-coordinates.

I know of CGLAB, but it seems only available to Scilab 6.0.x, while I am on
Scilab 6.1.0

So the nearest thing to a delaunay triangulation I found is mesh2d...
Because of the delaunay triangulation, I am not sure if the order of points
may change.

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

Thanks,
Philipp



Am Fr., 20. Nov. 2020 um 10:57 Uhr schrieb Stéphane Mottelet <
stephane.mottelet at utc.fr>:

> 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
>
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> --
> 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
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