1 /*******************************************************************************
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2 * Copyright (c) 2012, 2013 Association for Decentralized Information Management in
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.g3d.vtk.shape;
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14 import javax.vecmath.Vector3d;
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16 import org.simantics.g3d.shape.Color4d;
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17 import org.simantics.g3d.shape.Mesh;
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19 import vtk.vtkActor;
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20 import vtk.vtkDataSetMapper;
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21 import vtk.vtkIdList;
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22 import vtk.vtkPoints;
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23 import vtk.vtkPolyData;
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24 import vtk.vtkPolyDataMapper;
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25 import vtk.vtkPolyDataNormals;
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26 import vtk.vtkTriangle;
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27 import vtk.vtkUnsignedCharArray;
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29 public class MeshActor extends vtkActor {
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31 public void setMesh(Mesh mesh) {
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33 vtkPolyDataMapper mapper = new vtkPolyDataMapper();
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35 vtkPolyData polyData = new vtkPolyData();
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36 polyData.Allocate(mesh.getIndices().size()/3, mesh.getIndices().size()/3);
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38 vtkTriangle triangle = new vtkTriangle();
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39 vtkIdList list = triangle.GetPointIds();
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40 for (int i = 0; i < mesh.getIndices().size(); i+=3) {
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41 list.SetId(0, mesh.getIndices().get(i));
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42 list.SetId(1, mesh.getIndices().get(i+1));
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43 list.SetId(2, mesh.getIndices().get(i+2));
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44 polyData.InsertNextCell(triangle.GetCellType(), list);
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50 vtkPoints points = new vtkPoints();
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51 for (int i = 0; i < mesh.getVertices().size(); i++) {
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52 Vector3d p = mesh.getVertices().get(i);
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53 points.InsertPoint(i, p.x, p.y, p.z);
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56 polyData.SetPoints(points);
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59 if (mesh.getColors() != null) {
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60 vtkUnsignedCharArray colors = new vtkUnsignedCharArray();
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61 colors.SetName("Colors");
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62 colors.SetNumberOfComponents(3);
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63 colors.SetNumberOfTuples(mesh.getColors().size());
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64 for (int i = 0; i < mesh.getColors().size(); i++) {
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65 Color4d c = mesh.getColors().get(i);
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66 colors.InsertTuple3(i, 255.0* c.x, 255.0 * c.y, 255.0 * c.z);
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68 polyData.GetPointData().AddArray(colors);
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73 boolean computeNormals = true;
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74 if (computeNormals) {
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75 vtkPolyDataNormals normals = new vtkPolyDataNormals();
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76 normals.SetInput(polyData);
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77 mapper.SetInputConnection(normals.GetOutputPort());
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78 normals.GetOutputPort().Delete();
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81 mapper.SetInput(polyData);
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84 if (mesh.getColors() != null) {
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85 mapper.ScalarVisibilityOn();
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86 mapper.SetScalarModeToUsePointFieldData();
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87 mapper.SelectColorArray("Colors");
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92 polyData.GetPointData().Delete();
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