CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

If you want associate info (temperature in you case) to your points, you 
can have a look at this example:
http://doc.cgal.org/latest/Triangulation_3/index.html#Triangulation_3UsinganIteratorOverPairs

To get the neighbor vertices without inserting a point, you need to 
first locate the point in the triangulation:
http://doc.cgal.org/latest/Triangulation_3/classCGAL_1_1Triangulation__3.html#adae217a7db65ecdc2405658b661ccf0a

and you can get the conflict zone using find_conflicts:
http://doc.cgal.org/latest/Triangulation_3/classCGAL_1_1Delaunay__triangulation__3.html#a24b378be12e92562ec95b65a5fa5516f

If you insert the points, then you can use the function adjacent_vertices:
http://doc.cgal.org/latest/Triangulation_3/classCGAL_1_1Triangulation__3.html#ae6f24355946f91b3618188da06d8047e

Sebastien.

On 02/21/2014 12:46 PM, sushil wrote:
> Hello all,
> I am very new to CGAL so i dont know much of it. I have 1008 3D points
> containing some values at each of these points(in my example these are
> temperatures), of which a delaunay triangulation T is created. Now the
> triangulation consists of 6550 cells or tetrahedrons and i also got the
> vertices of these cells using Cell_iterator and Cell_handle. Now i am
> inserting a query point into this triangulation whose coordinates are known
> and i want to get the temperature value at that point by linear
> interpolation. i got 16 neighbour points to this query point. Now i want to
> know that, for finding interpolation weights , again cells are formed using
> these 16 neighbour points? if yes, i want to know how to get them and there
> vertices. Also it would be a great help if somebody would explain me what
> exactly is done after finding neighbour points of the query point to get an
> interpolation.
>
> Any help would be deeply appreciated.
> sushil
>
>
>
> --
> View this message in context: 
> http://cgal-discuss.949826.n4.nabble.com/finding-cells-made-by-neighbour-points-of-a-query-point-inserted-in-delaunay-triangulation-tp4658835.html
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