[vtkusers] Represent Grid as Points

[Müller, Jan]

This:
https://lorensen.github.io/VTKExamples/site/Cxx/PolyData/ColoredPoints/
Plus:
 vtkSmartPointer<vtkUniformGrid> grid = vtkSmartPointer<vtkUniformGrid>::New();
  grid->SetDimensions(xsize, ysize, zsize);

  vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();
  for (int i = 0; i < grid->GetNumberOfPoints(); ++i) {
    points->InsertNextPoint(grid->GetPoint(i));
  }
is pretty much what i do at the moment, I wonder if there is a way to get the Points out of a grid without iterating through the whole grid and copying every single point it contains.
Thanks for your help?


________________________________
Von: Bill Lorensen <bill.lorensen at gmail.com>
Gesendet: Montag, 14. August 2017 19:34
An: Dan Lipsa; Müller, Jan
Cc: vtkusers at vtk.org
Betreff: Re: [vtkusers] Represent Grid as Points

Or https://lorensen.github.io/VTKExamples/site/Cxx/Visualization/Glyph3DMapper

On Mon, Aug 14, 2017 at 11:57 AM Dan Lipsa <dan.lipsa at kitware.com<mailto:dan.lipsa at kitware.com>> wrote:
Does this help?
https://lorensen.github.io/VTKExamples/site/Cxx/PolyData/ColoredPoints/

On Mon, Aug 14, 2017 at 9:57 AM, Müller, Jan <J.Mueller at vr.rwth-aachen.de<mailto:J.Mueller at vr.rwth-aachen.de>> wrote:

Hi All,

I am new to VTK and I have trouble visualising just the points of a "vtkUniformGrid". I create a grid and attach Scalars to its points. So far so good but when it comes to visualising the points of the grid im having problems.


I found "SetRepresentationToPoints"sadly  this only visualises the surface of my Grid but i want ALL points of the grid.

The next promising thing I found is "vtkVertexGlyphFilter" but I didnt manage to find a comfortable way of connecting my Grid to it , without creating "vtkPolyData" by iterating through all points of the grid one by one.


I am pretty sure there must be an easy way to visualise a Grid as Points but im unable to find it.
Any help is very much appreciated!

Greetings
Jan


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