[vtkusers] Create a correct mesh from set of triangles and wrong vertices index numbers
cory.quammen at kitware.com
Wed Jan 4 15:01:01 EST 2017
On Fri, Dec 23, 2016 at 5:02 AM, gocarlos <gocarlos at ethz.ch> wrote:
> Dear VTK Users
> I have some data sets which have several triangles (set of 3 points with x,
> y, z) and vertices. (like the OBJ file).
> The problem is that the vertices are just in increasing order and not
I'm not sure what you mean by "are just in increasing order". Do you
mean that each triangle has a unique set of three vertices and the
vertices are listed in the order the cells are listed?
> Using PCL I've seen that when I save my PCL mesh (with unordered vertices)
> into STL, the PCL library converts the PCL mesh in VTK polydata and then a
> STL file is written to the file system (using VTK).
> I tried to look in the source code after the method which vtk used to clean
> the mesh to reorder the vertices, but I haven't found anything.
vtkCleanPolyData would be useful:
> I'm only interested on how VTK orders the vertices in such a way, that they
> are in the right order and the points of the mesh are not duplicate.
> Is there a method to clean the mesh/connect the duplicate points/reorder the
> vertices index?
See this example that does what you want:
> Thanks in advance.
> View this message in context: http://vtk.1045678.n5.nabble.com/Create-a-correct-mesh-from-set-of-triangles-and-wrong-vertices-index-numbers-tp5741637.html
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