private void Vertex() { vtkPoints points = vtkPoints.New(); points.InsertNextPoint(0, 0, 0); vtkVertex vertex = vtkVertex.New(); vertex.GetPointIds().SetId(0, 0); vtkCellArray vertices = vtkCellArray.New(); vertices.InsertNextCell(vertex); vtkPolyData polydata = vtkPolyData.New(); polydata.SetPoints(points); polydata.SetVerts(vertices); // Visualize vtkPolyDataMapper mapper = vtkPolyDataMapper.New(); mapper.SetInputConnection(polydata.GetProducerPort()); vtkActor actor = vtkActor.New(); actor.SetMapper(mapper); actor.GetProperty().SetPointSize(10); vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow; vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer(); renderer.SetBackground(0.2, 0.3, 0.4); // Add the actor to the scene renderer.AddActor(actor); }
internal void ApplyTransform(ref vtkTransform transform, string filename) { vtkPolyData polydata = vtkPolyData.New(); CreatePolydata(ref polydata); vtkTransformFilter transformFilter = vtkTransformFilter.New(); #if VTK_MAJOR_VERSION_5 transformFilter.SetInputConnection(polydata.GetProducerPort()); #else transformFilter.SetInputData(polydata); #endif transformFilter.SetTransform(transform); transformFilter.Update(); vtkXMLPolyDataWriter writer = vtkXMLPolyDataWriter.New(); writer.SetFileName(filename); #if VTK_MAJOR_VERSION_5 writer.SetInputConnection(transformFilter.GetOutputPort()); #else writer.SetInputData(transformFilter); #endif writer.Write(); }
internal void Write(string filename) { vtkPolyData polydata = vtkPolyData.New(); CreatePolydata(ref polydata); vtkXMLPolyDataWriter writer = vtkXMLPolyDataWriter.New(); writer.SetFileName(filename); #if VTK_MAJOR_VERSION_5 writer.SetInputConnection(polydata.GetProducerPort()); #else writer.SetInputData(polydata); #endif writer.Write(); }
public void ReadPointIntoObject(RenderWindowControl renderWindowControl, List <nvmPointModel> listPointModel) { vtkUnsignedCharArray colors = vtkUnsignedCharArray.New(); colors.SetNumberOfComponents(3); colors.SetName("Colors"); vtkPoints points = vtkPoints.New(); foreach (var point in listPointModel) { colors.InsertNextValue(byte.Parse(point.color.X.ToString(), CultureInfo.InvariantCulture)); colors.InsertNextValue(byte.Parse(point.color.Y.ToString(), CultureInfo.InvariantCulture)); colors.InsertNextValue(byte.Parse(point.color.Z.ToString(), CultureInfo.InvariantCulture)); points.InsertNextPoint( double.Parse(point.position.X.ToString(), CultureInfo.InvariantCulture), double.Parse(point.position.Y.ToString(), CultureInfo.InvariantCulture), double.Parse(point.position.Z.ToString(), CultureInfo.InvariantCulture)); } vtkPolyData polydata = vtkPolyData.New(); polydata.SetPoints(points); polydata.GetPointData().SetScalars(colors); vtkVertexGlyphFilter glyphFilter = vtkVertexGlyphFilter.New(); glyphFilter.SetInputConnection(polydata.GetProducerPort()); // Visualize vtkPolyDataMapper mapper = vtkPolyDataMapper.New(); mapper.SetInputConnection(glyphFilter.GetOutputPort()); vtkActor actor = vtkActor.New(); actor.SetMapper(mapper); actor.GetProperty().SetPointSize(2); // get a reference to the renderwindow of our renderWindowControl1 vtkRenderWindow renderWindow = renderWindowControl.RenderWindow; // renderer vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer(); // set background color renderer.SetBackground(0.2, 0.3, 0.4); // add our actor to the renderer renderer.AddActor(actor); renderer.ResetCamera(); }
private void QuadricDecimation() { vtkSphereSource sphereSource = vtkSphereSource.New(); sphereSource.Update(); vtkPolyData input = vtkPolyData.New(); input.ShallowCopy(sphereSource.GetOutput()); Debug.WriteLine("Before decimation" + Environment.NewLine + "------------"); Debug.WriteLine("There are " + input.GetNumberOfPoints() + " points."); Debug.WriteLine("There are " + input.GetNumberOfPolys() + " polygons."); vtkQuadricDecimation decimate = vtkQuadricDecimation.New(); #if VTK_MAJOR_VERSION_5 decimate.SetInputConnection(input.GetProducerPort()); #else decimate.SetInputData(input); #endif decimate.Update(); vtkPolyData decimated = vtkPolyData.New(); decimated.ShallowCopy(decimate.GetOutput()); Debug.WriteLine("After decimation" + Environment.NewLine + "------------"); Debug.WriteLine("There are " + decimated.GetNumberOfPoints() + " points."); Debug.WriteLine("There are " + decimated.GetNumberOfPolys() + " polygons."); vtkPolyDataMapper inputMapper = vtkPolyDataMapper.New(); #if VTK_MAJOR_VERSION_5 inputMapper.SetInputConnection(input.GetProducerPort()); #else inputMapper.SetInputData(input); #endif vtkActor inputActor = vtkActor.New(); inputActor.SetMapper(inputMapper); vtkPolyDataMapper decimatedMapper = vtkPolyDataMapper.New(); #if VTK_MAJOR_VERSION_5 decimatedMapper.SetInputConnection(decimated.GetProducerPort()); #else decimatedMapper.SetInputData(decimated); #endif vtkActor decimatedActor = vtkActor.New(); decimatedActor.SetMapper(decimatedMapper); vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow; this.Size = new System.Drawing.Size(612, 352); // Define viewport ranges // (xmin, ymin, xmax, ymax) double[] leftViewport = new double[] { 0.0, 0.0, 0.5, 1.0 }; double[] rightViewport = new double[] { 0.5, 0.0, 1.0, 1.0 }; // Setup both renderers vtkRenderer leftRenderer = vtkRenderer.New(); renderWindow.AddRenderer(leftRenderer); leftRenderer.SetViewport(leftViewport[0], leftViewport[1], leftViewport[2], leftViewport[3]); leftRenderer.SetBackground(.6, .5, .4); vtkRenderer rightRenderer = vtkRenderer.New(); renderWindow.AddRenderer(rightRenderer); rightRenderer.SetViewport(rightViewport[0], rightViewport[1], rightViewport[2], rightViewport[3]); rightRenderer.SetBackground(.4, .5, .6); // Add the sphere to the left and the cube to the right leftRenderer.AddActor(inputActor); rightRenderer.AddActor(decimatedActor); leftRenderer.ResetCamera(); rightRenderer.ResetCamera(); renderWindow.Render(); }
private void ElevationFilter() { // Created a grid of points (heigh/terrian map) vtkPoints points = vtkPoints.New(); uint GridSize = 10; for (uint x = 0; x < GridSize; x++) { for (uint y = 0; y < GridSize; y++) { points.InsertNextPoint(x, y, (x + y) / (y + 1)); } } double[] bounds = points.GetBounds(); // Add the grid points to a polydata object vtkPolyData inputPolyData = vtkPolyData.New(); inputPolyData.SetPoints(points); // Triangulate the grid points vtkDelaunay2D delaunay = vtkDelaunay2D.New(); #if VTK_MAJOR_VERSION_5 delaunay.SetInput(inputPolyData); #else delaunay.SetInputData(inputPolyData); #endif delaunay.Update(); vtkElevationFilter elevationFilter = vtkElevationFilter.New(); elevationFilter.SetInputConnection(delaunay.GetOutputPort()); elevationFilter.SetLowPoint(0.0, 0.0, bounds[4]); elevationFilter.SetHighPoint(0.0, 0.0, bounds[5]); elevationFilter.Update(); vtkPolyData output = vtkPolyData.New(); output.ShallowCopy(vtkPolyData.SafeDownCast(elevationFilter.GetOutput())); vtkFloatArray elevation = vtkFloatArray.SafeDownCast(output.GetPointData().GetArray("Elevation")); // Create the color map vtkLookupTable colorLookupTable = vtkLookupTable.New(); colorLookupTable.SetTableRange(bounds[4], bounds[5]); colorLookupTable.Build(); // Generate the colors for each point based on the color map vtkUnsignedCharArray colors = vtkUnsignedCharArray.New(); colors.SetNumberOfComponents(3); colors.SetName("Colors"); for (int i = 0; i < output.GetNumberOfPoints(); i++) { double val = elevation.GetValue(i); Debug.WriteLine("val: " + val); double[] dcolor = colorLookupTable.GetColor(val); //Debug.WriteLine("dcolor: " // + dcolor[0] + " " // + dcolor[1] + " " // + dcolor[2]); byte[] color = new byte[3]; for (int j = 0; j < 3; j++) { color[j] = (byte)(255 * dcolor[j]); } //Debug.WriteLine("color: " // + color[0] + " " // + color[1] + " " // + color[2]); colors.InsertNextTuple3(color[0], color[1], color[2]); } output.GetPointData().AddArray(colors); // Visualize vtkPolyDataMapper mapper = vtkPolyDataMapper.New(); #if VTK_MAJOR_VERSION_5 mapper.SetInputConnection(output.GetProducerPort()); #else mapper.SetInputData(output); #endif vtkActor actor = vtkActor.New(); actor.SetMapper(mapper); // get a reference to the renderwindow of our renderWindowControl1 vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow; // renderer vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer(); // set background color renderer.SetBackground(0.2, 0.3, 0.4); // add our actor to the renderer renderer.AddActor(actor); }
private void ColoredElevationMap() { // Create a grid of points (height/terrian map) vtkPoints points = vtkPoints.New(); uint GridSize = 20; double xx, yy, zz; for (uint x = 0; x < GridSize; x++) { for (uint y = 0; y < GridSize; y++) { xx = x + vtkMath.Random(-.2, .2); yy = y + vtkMath.Random(-.2, .2); zz = vtkMath.Random(-.5, .5); points.InsertNextPoint(xx, yy, zz); } } // Add the grid points to a polydata object vtkPolyData inputPolyData = vtkPolyData.New(); inputPolyData.SetPoints(points); // Triangulate the grid points vtkDelaunay2D delaunay = vtkDelaunay2D.New(); #if VTK_MAJOR_VERSION_5 delaunay.SetInput(inputPolyData); #else delaunay.SetInputData(inputPolyData); #endif delaunay.Update(); vtkPolyData outputPolyData = delaunay.GetOutput(); double[] bounds = outputPolyData.GetBounds(); // Find min and max z double minz = bounds[4]; double maxz = bounds[5]; Debug.WriteLine("minz: " + minz); Debug.WriteLine("maxz: " + maxz); // Create the color map vtkLookupTable colorLookupTable = vtkLookupTable.New(); colorLookupTable.SetTableRange(minz, maxz); colorLookupTable.Build(); // Generate the colors for each point based on the color map vtkUnsignedCharArray colors = vtkUnsignedCharArray.New(); colors.SetNumberOfComponents(3); colors.SetName("Colors"); Debug.WriteLine("There are " + outputPolyData.GetNumberOfPoints() + " points."); #if UNSAFE // fastest way to fill color array colors.SetNumberOfTuples(outputPolyData.GetNumberOfPoints()); unsafe { byte *pColor = (byte *)colors.GetPointer(0).ToPointer(); for (int i = 0; i < outputPolyData.GetNumberOfPoints(); i++) { double[] p = outputPolyData.GetPoint(i); double[] dcolor = colorLookupTable.GetColor(p[2]); Debug.WriteLine("dcolor: " + dcolor[0] + " " + dcolor[1] + " " + dcolor[2]); byte[] color = new byte[3]; for (uint j = 0; j < 3; j++) { color[j] = (byte)(255 * dcolor[j]); } Debug.WriteLine("color: " + color[0] + " " + color[1] + " " + color[2]); *(pColor + 3 * i) = color[0]; *(pColor + 3 * i + 1) = color[1]; *(pColor + 3 * i + 2) = color[2]; } } #else for (int i = 0; i < outputPolyData.GetNumberOfPoints(); i++) { double[] p = outputPolyData.GetPoint(i); double[] dcolor = colorLookupTable.GetColor(p[2]); Debug.WriteLine("dcolor: " + dcolor[0] + " " + dcolor[1] + " " + dcolor[2]); byte[] color = new byte[3]; for (uint j = 0; j < 3; j++) { color[j] = (byte)(255 * dcolor[j]); } Debug.WriteLine("color: " + color[0] + " " + color[1] + " " + color[2]); colors.InsertNextTuple3(color[0], color[1], color[2]); //IntPtr pColor = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(byte)) * 3); //Marshal.Copy(color, 0, pColor, 3); //colors.InsertNextTupleValue(pColor); //Marshal.FreeHGlobal(pColor); } #endif outputPolyData.GetPointData().SetScalars(colors); // Create a mapper and actor vtkPolyDataMapper mapper = vtkPolyDataMapper.New(); #if VTK_MAJOR_VERSION_5 mapper.SetInputConnection(outputPolyData.GetProducerPort()); #else mapper.SetInputData(outputPolyData); #endif vtkActor actor = vtkActor.New(); actor.SetMapper(mapper); // get a reference to the renderwindow of our renderWindowControl1 vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow; // renderer vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer(); // set background color renderer.SetBackground(0.2, 0.3, 0.4); // add our actor to the renderer renderer.AddActor(actor); }
private void WeightedTransformFilter() { // Use a sphere as a basis of the shape vtkSphereSource sphere = vtkSphereSource.New(); sphere.SetPhiResolution(40); sphere.SetThetaResolution(40); sphere.Update(); vtkPolyData sphereData = sphere.GetOutput(); // Create a data array to hold the weighting coefficients vtkFloatArray tfarray = vtkFloatArray.New(); int npoints = sphereData.GetNumberOfPoints(); tfarray.SetNumberOfComponents(2); tfarray.SetNumberOfTuples(npoints); // Parameterize the sphere along the z axis, and fill the weights // with (1.0-a, a) to linearly interpolate across the shape IntPtr pPoint = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(double)) * 3); double[] point = new double[3]; for (int i = 0; i < npoints; i++) { sphereData.GetPoint(i, pPoint); Marshal.Copy(pPoint, point, 0, 3); double x = point[0]; double y = point[1]; double z = point[2]; double zn = z + 0.5; double zn1 = 1.0 - zn; if (zn > 1.0) { zn = 1.0; } if (zn1 < 0.0) { zn1 = 0.0; } tfarray.SetComponent(i, 0, zn1); tfarray.SetComponent(i, 1, zn); } Marshal.FreeHGlobal(pPoint); // Create field data to hold the array, and bind it to the sphere vtkFieldData fd = vtkFieldData.New(); tfarray.SetName("weights"); sphereData.GetPointData().AddArray(tfarray); // Use an ordinary transform to stretch the shape vtkTransform stretch = vtkTransform.New(); stretch.Scale(1, 1, 3.2); vtkTransformFilter stretchFilter = vtkTransformFilter.New(); stretchFilter.SetInputConnection(sphereData.GetProducerPort()); stretchFilter.SetTransform(stretch); // Now, for the weighted transform stuff vtkWeightedTransformFilter weightedTrans = vtkWeightedTransformFilter.New(); // Create two transforms to interpolate between vtkTransform identity = vtkTransform.New(); identity.Identity(); vtkTransform rotated = vtkTransform.New(); double rotatedAngle = 45; rotated.RotateX(rotatedAngle); weightedTrans.SetNumberOfTransforms(2); weightedTrans.SetTransform(identity, 0); weightedTrans.SetTransform(rotated, 1); // which data array should the filter use ? weightedTrans.SetWeightArray("weights"); weightedTrans.SetInputConnection(stretchFilter.GetOutputPort()); vtkPolyDataMapper weightedTransMapper = vtkPolyDataMapper.New(); weightedTransMapper.SetInputConnection(weightedTrans.GetOutputPort()); vtkActor weightedTransActor = vtkActor.New(); weightedTransActor.SetMapper(weightedTransMapper); weightedTransActor.GetProperty().SetDiffuseColor(0.8, 0.8, 0.1); weightedTransActor.GetProperty().SetRepresentationToSurface(); // get a reference to the renderwindow of our renderWindowControl1 vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow; // renderer vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer(); // set background color renderer.SetBackground(0.2, 0.3, 0.4); // add our actor to the renderer renderer.AddActor(weightedTransActor); renderer.ResetCamera(); renderer.GetActiveCamera().Azimuth(90); renderer.GetActiveCamera().Dolly(1); }
private void ReadPlainText() { // Path to vtk data must be set as an environment variable // VTK_DATA_ROOT = "C:\VTK\vtkdata-5.8.0" vtkTesting test = vtkTesting.New(); string root = test.GetDataRoot(); string filePath = System.IO.Path.Combine(root, @"Data\teapot.xyz"); FileStream fs = null; StreamReader sr = null; String sLineBuffer; String[] sXYZ; char[] chDelimiter = new char[] { ' ', '\t', ';' }; double[] xyz = new double[3]; vtkPoints points = vtkPoints.New(); int cnt = 0; try { // in case file must be open in another application too use "FileShare.ReadWrite" fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite); sr = new StreamReader(fs); while (!sr.EndOfStream) { sLineBuffer = sr.ReadLine(); cnt++; sXYZ = sLineBuffer.Split(chDelimiter, StringSplitOptions.RemoveEmptyEntries); if (sXYZ == null || sXYZ.Length != 3) { MessageBox.Show("data seems to be in wrong format at line " + cnt, "Format Exception", MessageBoxButtons.OK); return; } xyz[0] = double.Parse(sXYZ[0], CultureInfo.InvariantCulture); xyz[1] = double.Parse(sXYZ[1], CultureInfo.InvariantCulture); xyz[2] = double.Parse(sXYZ[2], CultureInfo.InvariantCulture); points.InsertNextPoint(xyz[0], xyz[1], xyz[2]); } vtkPolyData polydata = vtkPolyData.New(); polydata.SetPoints(points); vtkVertexGlyphFilter glyphFilter = vtkVertexGlyphFilter.New(); glyphFilter.SetInputConnection(polydata.GetProducerPort()); // Visualize vtkPolyDataMapper mapper = vtkPolyDataMapper.New(); mapper.SetInputConnection(glyphFilter.GetOutputPort()); vtkActor actor = vtkActor.New(); actor.SetMapper(mapper); actor.GetProperty().SetPointSize(4); actor.GetProperty().SetColor(1, 0.5, 0); // get a reference to the renderwindow of our renderWindowControl1 vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow; // renderer vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer(); // set background color renderer.SetBackground(0.2, 0.3, 0.4); // add our actor to the renderer renderer.AddActor(actor); } catch (IOException ex) { MessageBox.Show(ex.Message, "IOException", MessageBoxButtons.OK); } finally { if (sr != null) { sr.Close(); sr.Dispose(); sr = null; } } }
private void FillHoles(string filePath) { vtkPolyData input = vtkPolyData.New(); if (filePath == null) { GenerateData(ref input); } else { vtkXMLPolyDataReader reader = vtkXMLPolyDataReader.New(); reader.SetFileName(filePath); reader.Update(); input.ShallowCopy(reader.GetOutput()); } vtkFillHolesFilter fillHolesFilter = vtkFillHolesFilter.New(); #if VTK_MAJOR_VERSION_5 fillHolesFilter.SetInputConnection(input.GetProducerPort()); #else fillHolesFilter.SetInputData(input); #endif fillHolesFilter.Update(); // Create a mapper and actor vtkPolyDataMapper originalMapper = vtkPolyDataMapper.New(); #if VTK_MAJOR_VERSION_5 originalMapper.SetInputConnection(input.GetProducerPort()); #else originalMapper.SetInputData(input); #endif vtkActor originalActor = vtkActor.New(); originalActor.SetMapper(originalMapper); vtkPolyDataMapper filledMapper = vtkPolyDataMapper.New(); filledMapper.SetInputConnection(fillHolesFilter.GetOutputPort()); vtkActor filledActor = vtkActor.New(); filledActor.SetMapper(filledMapper); vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow; this.Size = new System.Drawing.Size(612, 352); // Define viewport ranges // (xmin, ymin, xmax, ymax) double[] leftViewport = new double[] { 0.0, 0.0, 0.5, 1.0 }; double[] rightViewport = new double[] { 0.5, 0.0, 1.0, 1.0 }; // Setup both renderers vtkRenderer leftRenderer = vtkRenderer.New(); renderWindow.AddRenderer(leftRenderer); leftRenderer.SetViewport(leftViewport[0], leftViewport[1], leftViewport[2], leftViewport[3]); leftRenderer.SetBackground(.6, .5, .4); vtkRenderer rightRenderer = vtkRenderer.New(); renderWindow.AddRenderer(rightRenderer); rightRenderer.SetViewport(rightViewport[0], rightViewport[1], rightViewport[2], rightViewport[3]); rightRenderer.SetBackground(.4, .5, .6); // Add the sphere to the left and the cube to the right leftRenderer.AddActor(originalActor); rightRenderer.AddActor(filledActor); leftRenderer.ResetCamera(); rightRenderer.ResetCamera(); renderWindow.Render(); }
private void RenderXYZColor() { FileStream fs = null; StreamReader sr = null; String sLineBuffer; String[] sXYZ; char[] chDelimiter = new char[] { ' ', '\t', ';' }; double[] xyz = new double[3]; double[] rgb = new double[3]; vtkPoints points = vtkPoints.New(); vtkPoints colors = vtkPoints.New(); int cnt = 0; try { // in case file must be open in another application too use "FileShare.ReadWrite" fs = new FileStream(m_FileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite); sr = new StreamReader(fs); vtkDoubleArray colorScalor = new vtkDoubleArray(); int n = 1; while (!sr.EndOfStream) { sLineBuffer = sr.ReadLine(); cnt++; sXYZ = sLineBuffer.Split(chDelimiter, StringSplitOptions.RemoveEmptyEntries); if (sXYZ == null || sXYZ.Length != 6) { MessageBox.Show("data seems to be in wrong format at line " + cnt, "Format Exception", MessageBoxButtons.OK); return; } xyz[0] = double.Parse(sXYZ[0], CultureInfo.InvariantCulture) * 11100; xyz[1] = double.Parse(sXYZ[1], CultureInfo.InvariantCulture) * 11100; xyz[2] = double.Parse(sXYZ[2], CultureInfo.InvariantCulture); rgb[0] = double.Parse(sXYZ[0], CultureInfo.InvariantCulture); rgb[1] = double.Parse(sXYZ[1], CultureInfo.InvariantCulture); rgb[2] = double.Parse(sXYZ[2], CultureInfo.InvariantCulture); points.InsertNextPoint(xyz[0], xyz[1], xyz[2]); colors.InsertNextPoint(rgb[0], rgb[1], rgb[2]); colorScalor.InsertNextTuple1(n++); } vtkPolyData polydata = vtkPolyData.New(); polydata.SetPoints(points); polydata.GetPointData().SetScalars(colorScalor); //设置点的Scalar(标量)属性 vtkVertexGlyphFilter glyphFilter = vtkVertexGlyphFilter.New(); glyphFilter.SetInputConnection(polydata.GetProducerPort()); vtkLookupTable lookupTable = new vtkLookupTable(); lookupTable.SetNumberOfColors(n); // SetSetTableValue(vtkIdType indx, double r, double g, double b, double a); Random random = new Random(); for (int i = 0; i < n; i++) { double[] tmp = colors.GetPoint(i); double r = tmp[0]; double g = tmp[1]; double b = tmp[2]; lookupTable.SetTableValue(i, r, g, b, 1); } // Visualize vtkPolyDataMapper mapper = vtkPolyDataMapper.New(); mapper.SetInputConnection(glyphFilter.GetOutputPort()); mapper.SetLookupTable(lookupTable); mapper.SetScalarRange(1, n); vtkActor actor = vtkActor.New(); actor.SetMapper(mapper); actor.GetProperty().SetPointSize(1); //actor.GetProperty().SetColor(1, 0.5, 0); // add our actor to the renderer m_Renderer.AddActor(actor); imgPropList.Add(actor); m_Renderer.ResetCamera(); //Rerender the screen m_RenderWindow.Render(); m_Renderer.Render(); } catch (IOException ex) { MessageBox.Show(ex.Message, "IOException", MessageBoxButtons.OK); } finally { if (sr != null) { sr.Close(); sr.Dispose(); sr = null; } } }