[vtkusers] How to change Points color
ferluduena
xpelaox at gmail.com
Mon Mar 23 13:50:52 EDT 2015
Hi All,
Hope you can help me, i'm sure there is a very simple and straightforward
way of changing the color of a point cloud. First of all, this is my code:
vtkPolyData pointsPolydata = new vtkPolyData();
pointsPolydata.SetPoints(Ptos);
vtkVertexGlyphFilter vertexFilter = new vtkVertexGlyphFilter();
vertexFilter.SetInputConnection(pointsPolydata.GetProducerPort());
vertexFilter.Update();
vtkPolyData polydata = new vtkPolyData();
polydata.ShallowCopy(vertexFilter.GetOutput());
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
mapper.SetInput(polydata);
vtkActor actor = new vtkActor();
actor.SetMapper(mapper);
vtkRenderWindow RenderWindow =
renderWindowControl2.RenderWindow;
// get a reference to the renderer
vtkRenderer renderer =
RenderWindow.GetRenderers().GetFirstRenderer();
// set background color
renderer.SetBackground(0.2, 0.3, 0.4);
// add actor to the renderer
renderer.AddActor(actor);
// ensure all actors are visible (in this example not
necessarely needed,
// but in case more than one actor needs to be shown it might be
a good idea)
renderer.ResetCamera();
Ptos is a vtkPoints where i have a stored a cloud of points.
This code draws what i've generated, in white. My idea is to insert several
times different objects on a same Render Window, so i need it to be able of
using a different color for each set of points.
How can i achieve this?
Thanks a lot in advance.
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