internal void CreatePolydata(ref vtkPolyData polydata)
{
vtkPoints points = vtkPoints.New();
points.InsertNextPoint(this.origin[0], this.origin[1], this.origin[2]);
float[] x = new float[3];
float[] y = new float[3];
float[] z = new float[3];
Add(this.origin, this.xDirection, ref x);
Add(this.origin, this.yDirection, ref y);
Add(this.origin, this.zDirection, ref z);
points.InsertNextPoint(x[0], x[1], x[2]);
points.InsertNextPoint(y[0], y[1], y[2]);
points.InsertNextPoint(z[0], z[1], z[2]);
polydata.SetPoints(points);
vtkVertexGlyphFilter vertexGlyphFilter = vtkVertexGlyphFilter.New();
#if VTK_MAJOR_VERSION_5
vertexGlyphFilter.AddInput(polydata);
#else
vertexGlyphFilter.AddInputData(polydata);
#endif
vertexGlyphFilter.Update();
polydata.ShallowCopy(vertexGlyphFilter.GetOutput());
}
private void SelectAreaClick(vtkObject sender, vtkObjectEventArgs e)
{
int[] clickPos = Inter.GetEventPosition();
vtkAreaPicker picker = vtkAreaPicker.New();
picker.AreaPick(clickPos[0], clickPos[1], clickPos[0] + 100, clickPos[1] + 100, Viewport);
if (picker.GetActor() != null)
{
vtkPlanes Boundary = picker.GetFrustum();
vtkExtractGeometry Box = vtkExtractGeometry.New();
Box.SetImplicitFunction(Boundary);
Box.SetInput(picker.GetActor().GetMapper().GetInput());
vtkVertexGlyphFilter glyphFilter = vtkVertexGlyphFilter.New();
glyphFilter.SetInputConnection(Box.GetOutputPort());
glyphFilter.Update();
vtkPolyData selected = glyphFilter.GetOutput();
vtkPoints points = vtkPoints.New();
vtkUnstructuredGrid grid = vtkUnstructuredGrid.New();
for (int i = 0; i < selected.GetNumberOfPoints(); i++)
{
points.InsertNextPoint(selected.GetPoint(i)[0], selected.GetPoint(i)[1], selected.GetPoint(i)[2]);
}
grid.SetPoints(points);
vtkSphereSource sphere = vtkSphereSource.New();
sphere.SetPhiResolution(6);
sphere.SetThetaResolution(6);
sphere.SetRadius(0.1);
vtkGlyph3D glyph3D = vtkGlyph3D.New();
glyph3D.SetInput(grid);
glyph3D.SetSourceConnection(sphere.GetOutputPort());
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
mapper.SetInputConnection(glyph3D.GetOutputPort());
//double[] P = new double[3];
//bool selected = false;
//vtkPoints points = Faces.GetPoints();
//double[] ClickedPoint = PointPicker.GetActor().GetMapper().GetInput().GetPoint(PointPicker.GetPointId());
//for (int i = 0; i < points.GetNumberOfPoints(); i++)
//{
// if (Math.Abs(points.GetPoint(i)[0] - ClickedPoint[0]) < 1e-6 &&
// Math.Abs(points.GetPoint(i)[1] - ClickedPoint[1]) < 1e-6 &&
// Math.Abs(points.GetPoint(i)[2] - ClickedPoint[2]) < 1e-6)
// {
// selected = true;
// P = points.GetPoint(i);
// break;
// }
//}
//
//if (selected == true)
//{
// SelectionPoints.InsertNextPoint(P[0], P[1], P[2]);
//
// SelectionGlyph = vtkGlyph3D.New();
// SelectionGlyph.SetInput(SelectionPolyData);
// SelectionGlyph.SetSourceConnection(SelectionSphere.GetOutputPort());
// SelectionMapper.SetInputConnection(SelectionGlyph.GetOutputPort());
//
// // Refresh Viewport
// Refresh();
//}
}
}