public void SetRaw(string filename)
{
byte[] bytes = System.IO.File.ReadAllBytes(filename);
int count = 0;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
var i = BitConverter.ToInt32(bytes, (x + y * width) * 4) / scale;
data[count] = (int)(i > depth ? depth : i < 0 ? 0 : i);
count++;
}
}
//スカラ量の設定
using (var da = vtkIntArray.New())
{
//IntPtr pIds = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(int)) * data.Length);
Marshal.Copy(data, 0, pIds, data.Length);
da.SetArray((IntPtr)pIds, data.Length, 1);
pointPoly.GetPointData().SetScalars(da);
//Marshal.FreeHGlobal(pIds); //解放したらアカン
}
}
public void ReadDataByLine(string filename)
{
try
{
var dataStrings = File.ReadAllLines(filename);
points = vtkPoints.New();
points.SetNumberOfPoints(dataStrings.Length);
var colorArray = vtkUnsignedCharArray.New();
colorArray.SetNumberOfComponents(3);
for (var i = 0; i < dataStrings.Length; i++)
{
var data = dataStrings[i].Split(' ');
if (data.Length < 6)
{
continue;
}
points.SetPoint(i, int.Parse(data[0]), int.Parse(data[1]), int.Parse(data[2]));
colorArray.InsertNextTuple3(double.Parse(data[3]), double.Parse(data[4]), double.Parse(data[5]));
}
PolyData = vtkPolyData.New();
PolyData.SetPoints(points);
PolyData.GetPointData().SetScalars(colorArray);
PolyData.Update();
}
catch (Exception)
{
throw;
}
}
public void SetActor(double warpScale)
{
//IntPtr pIds = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(int)) * data.Length);
//スカラ量の設定
using (var da = vtkIntArray.New())
using (var warp = vtkWarpScalar.New())
using (var mapper = vtkPolyDataMapper.New())
{
Marshal.Copy(data, 0, pIds, Size);
da.SetArray((IntPtr)pIds, Size, 1);
pointPoly.GetPointData().SetScalars(da);
//Marshal.FreeHGlobal(pIds); //解放したらアカン
warp.SetInput(pointPoly);
warp.SetScaleFactor(warpScale);
mapper.SetInput(warp.GetPolyDataOutput());
//mapper.SetInput(pointPoly);
mapper.SetLookupTable(lut);
mapper.SetScalarRange(0.0, Depth);
mapper.ScalarVisibilityOn();
DataActor.SetMapper(mapper);
DataActor.GetProperty().SetPointSize(2);
RaisePropertyChanged("render");
}
}
public static void SaveRectData(string filename, vtkPolyData polyData, Rectangle rect)
{
try
{
SimplePointFile.OpenWriteFile(filename);
var color = polyData.GetPointData().GetScalars();
for (var i = 0; i < rect.Height; i++)
{
for (var j = 0; j < rect.Width; j++)
{
var data = polyData.GetPoint(i * rect.Width + j);
var c = color.GetComponent(i * rect.Width + j, 0);
SimplePointFile.Writeline(new[] { data[0], data[1], data[2], c, c, c });
}
}
}
catch (Exception)
{
}
finally
{
SimplePointFile.CloseWriteFile();
}
}
public void WriteVTP(string filePath, List <Vector3d> point_data, List <Vector3> cellPointsList, Dictionary <String, vtkDataArray> scalar_dataArray, List <String> arrayNames)
{
vtkPoints points = vtkPoints.New();
for (int i = 0; i < point_data.Count(); i++)
{
points.InsertNextPoint(point_data[i].X, point_data[i].Y, point_data[i].Z);
}
vtkPolyData polyData = vtkPolyData.New();
polyData.SetPoints(points);
vtkCellArray cellArrayOne = vtkCellArray.New();
for (int i = 0; i < cellPointsList.Count(); i++)
{
vtkTetra tetra = vtkTetra.New();
tetra.GetPointIds().SetId(0, (long)cellPointsList[i][0]);
tetra.GetPointIds().SetId(1, (long)cellPointsList[i][1]);
tetra.GetPointIds().SetId(2, (long)cellPointsList[i][2]);
tetra.GetPointIds().SetId(3, (long)cellPointsList[i][2]);
cellArrayOne.InsertNextCell(tetra);
}
polyData.SetPolys(cellArrayOne);
int numberOfScalarData = scalar_dataArray.Count();
for (int i = 0; i < numberOfScalarData; i++)
{
scalar_dataArray.TryGetValue(arrayNames[i], out vtkDataArray scalars);
polyData.GetPointData().AddArray(scalars);
}
vtkXMLPolyDataWriter writer = vtkXMLPolyDataWriter.New();
// add file ending if it is not existent
string suffix = (".vtp");
if (!(filePath.EndsWith(suffix)))
{
filePath += suffix;
}
writer.SetFileName(filePath);
writer.SetInput(polyData);
writer.Write();
// Read and display file for verification that it was written correctly
vtkXMLStructuredGridReader reader = vtkXMLStructuredGridReader.New();
if (reader.CanReadFile(filePath) == 0)
{
//MessageBox.Show("Cannot read file \"" + filePath + "\"", "Error", MessageBoxButtons.OK);
return;
}
Console.WriteLine("VTP file was writen and is saved at {0}", filePath);
}
public static void GetRectData(vtkPolyData data, Rectangle rect)
{
var points = vtkPoints.New();
var colorArray = vtkUnsignedCharArray.New();
colorArray.SetNumberOfComponents(3);
RectImageData = vtkImageData.New();
RectImageData.SetExtent(0, rect.Size.Width - 1, 0, rect.Size.Height - 1, 0, 0);
RectImageData.SetNumberOfScalarComponents(1);
RectImageData.SetScalarTypeToUnsignedChar();
for (var i = rect.Top; i < rect.Bottom; i++)
{
for (var j = rect.Left; j < rect.Right; j++)
{
double[] p = data.GetPoint(i * ImageWidth + j);
points.InsertNextPoint(j - rect.Left, i - rect.Top, p[2]);
double[] c = data.GetPointData().GetScalars().GetTuple3(i * ImageWidth + j);
colorArray.InsertNextTuple3(c[0], c[1], c[2]);
RectImageData.SetScalarComponentFromDouble(j - rect.Left, i - rect.Top, 0, 0, c[0]);
}
}
RectPolyData = vtkPolyData.New();
RectPolyData.SetPoints(points);
RectPolyData.GetPointData().SetScalars(colorArray);
RectPolyData.Update();
}
public static void SaveData(int ratio, string filename)
{
try
{
SimplePointFile.OpenWriteFile(filename);
var color = PolyData.GetPointData().GetScalars();
for (var i = 0; i < ImageHeight; i += ratio)
{
for (var j = 0; j < ImageWidth; j += ratio)
{
var data = PolyData.GetPoint(i * ImageWidth + j);
var c = color.GetComponent(i * ImageWidth + j, 0);
SimplePointFile.Writeline(new[] { data[0] / ratio, data[1] / ratio, data[2], c, c, c });
}
}
}
catch (Exception)
{
}
finally
{
SimplePointFile.CloseWriteFile();
}
}
private static void NullPoint()
{
vtkPoints points = vtkPoints.New();
points.InsertNextPoint(1, 1, 1);
points.InsertNextPoint(2, 2, 2);
points.InsertNextPoint(3, 3, 3);
vtkPolyData polydata = vtkPolyData.New();
polydata.SetPoints(points);
vtkFloatArray floatArray = vtkFloatArray.New();
floatArray.SetNumberOfValues(3);
floatArray.SetNumberOfComponents(1);
floatArray.SetName("FloatArray");
for (int i = 0; i < 3; i++)
{
floatArray.SetValue(i, 2);
}
polydata.GetPointData().AddArray(floatArray);
vtkIntArray intArray = vtkIntArray.New();
intArray.SetNumberOfValues(3);
intArray.SetNumberOfComponents(1);
intArray.SetName("IntArray");
for (int i = 0; i < 3; i++)
{
intArray.SetValue(i, 2);
}
polydata.GetPointData().AddArray(intArray);
Console.WriteLine("PointIdx x y z " + "floatArray" + " " + "intArray");
Console.WriteLine("----------------------------------------");
for (int i = 0; i < 3; i++)
{
double[] p = polydata.GetPoint(i);
vtkFloatArray pointsFloatArray = vtkFloatArray.SafeDownCast(polydata.GetPointData().GetArray("FloatArray"));
vtkIntArray pointsIntArray = vtkIntArray.SafeDownCast(polydata.GetPointData().GetArray("IntArray"));
Console.WriteLine(" " + i + " " + p[0] + " " + p[1] + " " + p[2] + " "
+ pointsFloatArray.GetValue(i) + " " + pointsIntArray.GetValue(i));
}
polydata.GetPointData().NullPoint(1);
polydata.Modified();
Console.WriteLine("");
for (int i = 0; i < 3; i++)
{
double[] p = polydata.GetPoint(i);
vtkFloatArray pointsFloatArray = vtkFloatArray.SafeDownCast(polydata.GetPointData().GetArray("FloatArray"));
vtkIntArray pointsIntArray = vtkIntArray.SafeDownCast(polydata.GetPointData().GetArray("IntArray"));
Console.WriteLine(" " + i + " " + p[0] + " " + p[1] + " " + p[2] + " "
+ pointsFloatArray.GetValue(i) + " " + pointsIntArray.GetValue(i));
}
}
public static void SetColorByImage(vtkPolyData data, vtkImageData image, Rectangle rect)
{
for (int i = 0; i < rect.Width * rect.Height; i++)
{
float c = image.GetScalarComponentAsFloat(i % rect.Width, i / rect.Width, 0, 0);
data.GetPointData().GetScalars().SetTuple3(i, c, c, c);
}
data.Modified();
}
public VTKDataModel(SimulationModel sm)
{
simModel = sm;
int numCells = sm.Cells.Count;
cellIDs = vtkIntArray.New();
cellIDs.SetNumberOfComponents(1);
cellIDs.SetNumberOfValues(numCells);
cellIDs.SetName(cellIdsArrayName);
cellTypes = vtkIntArray.New();
cellTypes.SetNumberOfComponents(1);
cellTypes.SetNumberOfValues(numCells);
cellTypes.SetName(cellTypeArrayName);
points = vtkPoints.New();
points.SetNumberOfPoints(numCells);
verts = vtkCellArray.New();
verts.Allocate(verts.EstimateSize(1, numCells), 1000);
verts.InsertNextCell(numCells);
foreach (MotileCell cell in sm.Cells)
{
int i = cell.CellId;
int c = cell.CellType;
double[] p = cell.Position;
points.SetPoint(i, p[0], p[1], p[2]);
cellIDs.SetValue(i, i);
cellTypes.SetValue(i, c);
verts.InsertCellPoint(i);
}
poly = vtkPolyData.New();
poly.SetPoints(points);
poly.SetVerts(verts);
poly.GetPointData().AddArray(cellIDs);
poly.GetPointData().AddArray(cellTypes);
}
private void SetFlatData(float[] src)
{
using (var warp = vtkWarpScalar.New())
using (var mapper = vtkPolyDataMapper.New())
using (var actor = vtkActor.New())
{
if (src != null)
{
IntPtr pIds = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(float)) * Size);
Marshal.Copy(src, 0, pIds, Size);
var da = vtkFloatArray.New();
da.SetArray(pIds, Size, 1);
pointPoly.GetPointData().SetScalars(da);
}
warp.SetInput(pointPoly);
warp.SetScaleFactor(Scale);
//var transform = vtkTransform.New();
//transform.RotateX(180);
//var transformFilter = vtkTransformPolyDataFilter.New();
//transformFilter.SetTransform(transform);
//transformFilter.SetInputConnection(warp.GetOutputPort());
//mapper.SetInput(transformFilter.GetOutput());
mapper.SetInput(warp.GetPolyDataOutput());
mapper.SetLookupTable(lut);
//mapper.SetColorModeToMapScalars();
mapper.SetScalarRange(ScalarRangeMin, ScalarRangeMax);
DataActor.SetMapper(mapper);
DataActor.GetProperty().SetPointSize(PointSize);
//DataActor.SetOrientation(90, 0, 0);
}
}
public static void ReadDataFromFile(string filename)
{
try
{
SimplePointFile.GetImageInfo(filename);
ImageWidth = SimplePointFile.ImageWidth;
ImageHeight = SimplePointFile.ImageHeight;
//Console.WriteLine("ImageWidth:" + ImageWidth);
//Console.WriteLine("ImageHeight:" + ImageHeight);
var points = vtkPoints.New();
var colorArray = vtkUnsignedCharArray.New();
colorArray.SetNumberOfComponents(3);
ImageData = vtkImageData.New();
ImageData.SetExtent(0, ImageWidth - 1, 0, ImageHeight - 1, 0, 0);
ImageData.SetNumberOfScalarComponents(1);
ImageData.SetScalarTypeToUnsignedChar();
SimplePointFile.OpenReadFile(filename);
double[] data;
while ((data = SimplePointFile.ReadLine()) != null)
{
points.InsertNextPoint(data[0], data[1], data[2]);
colorArray.InsertNextTuple3(data[3], data[4], data[5]);
ImageData.SetScalarComponentFromDouble((int)data[0], (int)data[1], 0, 0, data[3]);
}
PolyData = vtkPolyData.New();
PolyData.SetPoints(points);
PolyData.GetPointData().SetScalars(colorArray);
PolyData.Update();
//Console.WriteLine("PolyData & ImageData Load.");
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
finally
{
SimplePointFile.CloseReadFile();
}
}
private vtkActor2D VirtualHeaterVTKBuilder()
{
vtkActor2D actor = vtkActor2D.New();
vtkPoints pointSource = vtkPoints.New();
vtkStringArray labels = vtkStringArray.New();
vtkCellArray verts = vtkCellArray.New();
TowerModelInstance.VTKLabelGetter(ref pointSource, ref labels, ref verts, paras, WorkSpaceInstance);
//MessageBox.Show(labels.ToString());
vtkPolyData polyData = vtkPolyData.New();
polyData.SetPoints(pointSource);
polyData.SetVerts(verts);
polyData.GetPointData().AddArray(labels);
vtkTextProperty textProp = vtkTextProperty.New();
textProp.SetFontSize(12);
//textProp.SetColor(1.0, 1.0, 0.5);
textProp.SetFontFamilyToArial();
vtkPointSetToLabelHierarchy hie = vtkPointSetToLabelHierarchy.New();
hie.SetInput(polyData);
hie.SetMaximumDepth(15);
hie.SetLabelArrayName("111");
hie.SetTargetLabelCount(100);
hie.SetTextProperty(textProp);
vtkLabelPlacementMapper labelMapper = new vtkLabelPlacementMapper();
labelMapper.SetInputConnection(hie.GetOutputPort());
vtkFreeTypeLabelRenderStrategy strategy = new vtkFreeTypeLabelRenderStrategy();
labelMapper.SetRenderStrategy(strategy);
labelMapper.UseDepthBufferOn();
labelMapper.SetShapeToNone();
labelMapper.SetStyleToOutline();
//labelMapper.UseUnicodeStringsOff();
actor.SetMapper(labelMapper);
return(actor);
}
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 static void FindAllData(ref vtkPolyData polydata)
{
Console.WriteLine("Normals: " + polydata.GetPointData().GetNormals());
int numberOfPointArrays = polydata.GetPointData().GetNumberOfArrays();
Console.WriteLine("Number of PointData arrays: " + numberOfPointArrays);
int numberOfCellArrays = polydata.GetCellData().GetNumberOfArrays();
Console.WriteLine("Number of CellData arrays: " + numberOfCellArrays);
Console.WriteLine(
Environment.NewLine +
"Type table/key: " +
Environment.NewLine +
"-------------------------");
//more values can be found in <VTK_DIR>/Common/vtkSetGet.h
Console.WriteLine(3 + " unsigned char");
Console.WriteLine(7 + " unsigned int");
Console.WriteLine(10 + " float");
Console.WriteLine(11 + " double" + Environment.NewLine);
for (int i = 0; i < numberOfPointArrays; i++)
{
// The following two lines are equivalent
//arrayNames.push_back(polydata.GetPointData().GetArray(i).GetName());
//arrayNames.push_back(polydata.GetPointData().GetArrayName(i));
int dataTypeID = polydata.GetPointData().GetArray(i).GetDataType();
string dataTypeAsString = polydata.GetPointData().GetArray(i).GetDataTypeAsString();
Console.WriteLine("Array " + i + ": "
+ polydata.GetPointData().GetArrayName(i)
+ " (type: " + dataTypeID + ")"
+ " (type as string: " + dataTypeAsString + ")" + Environment.NewLine);
}
for (int i = 0; i < numberOfCellArrays; i++)
{
// The following two lines are equivalent
//polydata.GetPointData().GetArray(i).GetName();
//polydata.GetPointData().GetArrayName(i);
int dataTypeID = polydata.GetCellData().GetArray(i).GetDataType();
string dataTypeAsString = polydata.GetPointData().GetArray(i).GetDataTypeAsString();
Console.WriteLine("Array " + i + ": "
+ polydata.GetCellData().GetArrayName(i)
+ " (type: " + dataTypeID + ")"
+ " (type as string: " + dataTypeAsString + ")");
}
}
public static void SetColorByHeight(vtkPolyData data, Rectangle rect)
{
double zmin = data.GetPoint(0)[2];
double zmax = zmin;
for (int i = 0; i < rect.Width * rect.Height; i++)
{
double z = data.GetPoint(i)[2];
if (z < zmin)
{
zmin = z;
}
if (z > zmax)
{
zmax = z;
}
}
//Console.WriteLine("Zmin:" + zmin + " Zmax:" + zmax);
vtkColorTransferFunction colorFunction = vtkColorTransferFunction.New();
colorFunction.AddRGBPoint(zmin, 0, 0, 1);
colorFunction.AddRGBPoint(zmax, 1, 0, 0);
//Console.WriteLine("Color:" + colorFunction.GetColor(0)[0] + " "
// + colorFunction.GetColor(0)[1] + " "
// + colorFunction.GetColor(0)[2]);
for (int i = 0; i < rect.Width * rect.Height; i++)
{
double z = data.GetPoint(i)[2];
double[] c = colorFunction.GetColor(z);
data.GetPointData().GetScalars().SetTuple3(i, c[0] * 255, c[1] * 255, c[2] * 255);
}
data.Modified();
}
private static void FindAllData(ref vtkPolyData polydata)
{
Console.WriteLine("Normals: " + polydata.GetPointData().GetNormals());
int numberOfPointArrays = polydata.GetPointData().GetNumberOfArrays();
Console.WriteLine("Number of PointData arrays: " + numberOfPointArrays);
int numberOfCellArrays = polydata.GetCellData().GetNumberOfArrays();
Console.WriteLine("Number of CellData arrays: " + numberOfCellArrays);
Console.WriteLine(
Environment.NewLine +
"Type table/key: " +
Environment.NewLine +
"-------------------------");
//more values can be found in <VTK_DIR>/Common/vtkSetGet.h
Console.WriteLine(3 + " unsigned char");
Console.WriteLine(7 + " unsigned int");
Console.WriteLine(10 + " float");
Console.WriteLine(11 + " double" + Environment.NewLine);
for(int i = 0; i < numberOfPointArrays; i++) {
// The following two lines are equivalent
//arrayNames.push_back(polydata.GetPointData().GetArray(i).GetName());
//arrayNames.push_back(polydata.GetPointData().GetArrayName(i));
int dataTypeID = polydata.GetPointData().GetArray(i).GetDataType();
string dataTypeAsString = polydata.GetPointData().GetArray(i).GetDataTypeAsString();
Console.WriteLine("Array " + i + ": "
+ polydata.GetPointData().GetArrayName(i)
+ " (type: " + dataTypeID + ")"
+ " (type as string: " + dataTypeAsString + ")" + Environment.NewLine);
}
for(int i = 0; i < numberOfCellArrays; i++) {
// The following two lines are equivalent
//polydata.GetPointData().GetArray(i).GetName();
//polydata.GetPointData().GetArrayName(i);
int dataTypeID = polydata.GetCellData().GetArray(i).GetDataType();
string dataTypeAsString = polydata.GetPointData().GetArray(i).GetDataTypeAsString();
Console.WriteLine("Array " + i + ": "
+ polydata.GetCellData().GetArrayName(i)
+ " (type: " + dataTypeID + ")"
+ " (type as string: " + dataTypeAsString + ")");
}
}
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;
}
}
}
private void WarpVector()
{
vtkPoints points = vtkPoints.New();
points.InsertNextPoint(0.0, 0.0, 0.0);
points.InsertNextPoint(1.0, 0.0, 0.0);
points.InsertNextPoint(2.0, 0.0, 0.0);
points.InsertNextPoint(3.0, 0.0, 0.0);
points.InsertNextPoint(4.0, 0.0, 0.0);
vtkCellArray lines = vtkCellArray.New();
vtkLine line = vtkLine.New();
line.GetPointIds().SetId(0, 0);
line.GetPointIds().SetId(1, 1);
lines.InsertNextCell(line);
line.GetPointIds().SetId(0, 1);
line.GetPointIds().SetId(1, 2);
lines.InsertNextCell(line);
line.GetPointIds().SetId(0, 2);
line.GetPointIds().SetId(1, 3);
lines.InsertNextCell(line);
line.GetPointIds().SetId(0, 3);
line.GetPointIds().SetId(1, 4);
lines.InsertNextCell(line);
vtkDoubleArray warpData = vtkDoubleArray.New();
warpData.SetNumberOfComponents(3);
warpData.SetName("warpData");
double[] warp = new double[] { 0.0, 0.0, 0.0 };
warp[1] = 0.0;
warpData.InsertNextTuple3(warp[0], warp[1], warp[2]);
warp[1] = 0.1;
warpData.InsertNextTuple3(warp[0], warp[1], warp[2]);
warp[1] = 0.3;
warpData.InsertNextTuple3(warp[0], warp[1], warp[2]);
warp[1] = 0.0;
warpData.InsertNextTuple3(warp[0], warp[1], warp[2]);
warp[1] = 0.1;
warpData.InsertNextTuple3(warp[0], warp[1], warp[2]);
vtkPolyData polydata = vtkPolyData.New();
polydata.SetPoints(points);
polydata.SetLines(lines);
polydata.GetPointData().AddArray(warpData);
polydata.GetPointData().SetActiveVectors(warpData.GetName());
//WarpVector will use the array marked as active vector in polydata
//it has to be a 3 component array
//with the same number of tuples as points in polydata
vtkWarpVector warpVector = vtkWarpVector.New();
#if VTK_MAJOR_VERSION_5
warpVector.SetInput(polydata);
#else
warpVector.SetInputData(polydata);
#endif
warpVector.Update();
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
#if VTK_MAJOR_VERSION_5
mapper.SetInput(warpVector.GetPolyDataOutput());
#else
mapper.SetInputData(warpVector.GetPolyDataOutput());
#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(.2, .6, .3);
renderer.AddActor(actor);
}
private void Window_Activated(object sender, EventArgs e)
{
vtkPolyData cube = new vtkPolyData();
vtkPoints points = new vtkPoints();
vtkCellArray polys = new vtkCellArray();
vtkFloatArray scalars = new vtkFloatArray();
Kitware.VTK.RenderWindowControl vtkControl = new Kitware.VTK.RenderWindowControl();
vtkControl.AddTestActors = false;
vtkControl.Location = new System.Drawing.Point(10, 10);
vtkControl.Name = "_renwin";
vtkControl.Size = new System.Drawing.Size(100, 100);
vtkControl.TabIndex = 0;
vtkControl.TestText = null;
vtkControl.Dock = System.Windows.Forms.DockStyle.Fill;
vtkformhost.Child = vtkControl;
vtkformhost.Visibility = System.Windows.Visibility.Visible;
int i;
float[][] x = new float[8][]
{
new float[] { 0, 0, 0 }, //第0个点的坐标
new float[] { 1, 0, 0 }, //第1个点的坐标
new float[] { 1, 1, 0 }, //第2个点的坐标
new float[] { 0, 1, 0 }, //3
new float[] { 0, 0, 1 }, //4
new float[] { 1, 0, 1 }, //5
new float[] { 1, 1, 1 }, //6
new float[] { 0, 1, 1 } //7
};
for (i = 0; i < 8; i++)
{
points.InsertPoint(i, x[i][0], x[i][1], x[i][2]); //加载点，创建数据结构的几何
}
List <int[]> temp = new List <int[]>();
int[] temparray0 = new int[4] {
0, 1, 2, 3
}; //第0，1，2，3个点连接在一起，成为一个单元
int[] temparray1 = new int[4] {
4, 5, 6, 7
}; //第4，5，6，7个点连接在一起，成为一个单元
int[] temparray2 = new int[4] {
0, 1, 5, 4
};
int[] temparray3 = new int[4] {
1, 2, 6, 5
};
int[] temparray4 = new int[4] {
2, 3, 7, 6
};
int[] temparray5 = new int[4] {
3, 0, 4, 7
};
temp.Add(temparray0);
temp.Add(temparray1);
temp.Add(temparray2);
temp.Add(temparray3);
temp.Add(temparray4);
temp.Add(temparray5);
//因为在activiz中没有vtkIdType这个类，所以用了其他的方法代替C++代码中的实现。
for (int j = 0; j < temp.Count; j++)
{
IntPtr pP = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(int)) * 4);
Marshal.Copy(temp[j], 0, pP, 4);
polys.InsertNextCell(4, pP);//加载单元，定义数据集的拓扑
Marshal.FreeHGlobal(pP);
}
for (i = 0; i < 8; i++)
{
scalars.InsertTuple1(i, i); //为每一个点设置点属性。
}
cube.SetPoints(points);
cube.SetPolys(polys);
cube.GetPointData().SetScalars(scalars);
vtkPolyDataMapper cubemapper = new vtkPainterPolyDataMapper();
cubemapper.SetInput(cube);
cubemapper.SetScalarRange(0, 7);
vtkActor cubeactor = new vtkActor();
cubeactor.SetMapper(cubemapper);
// Create components of the rendering subsystem
//
vtkRenderWindow _renwin = vtkControl.RenderWindow;
vtkRenderer ren1 = _renwin.GetRenderers().GetFirstRenderer();
// Add the actors to the renderer, set the window size
//
ren1.AddViewProp(cubeactor);
_renwin.SetSize(250, 250);
_renwin.Render();
ren1.ResetCamera();
}
public bool Read_Poly_Data_File(string filename)
{
//Initalize VTK Reader
vtkXMLPolyDataReader reader = new vtkXMLPolyDataReader();
reader.SetFileName(filename);
reader.Update();
vtkPolyData polydata = reader.GetOutput();
if (polydata == null)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Invalid Poly data Input");
return(false);
}
// Read Point Coordinates
int numPoints = (int)polydata.GetNumberOfPoints();
List <Vector3d> point_dat = new List <Vector3d>();
if (numPoints != 0)
{
double[] pt;
for (int i = 0; i < numPoints; i++)
{
pt = polydata.GetPoint(i);
point_dat.Add(new Vector3d((float)pt[0], (float)pt[1], (float)pt[2]));
}
if (this.vertex_data.ContainsKey("vertices"))
{
this.vertex_data["vertices"] = point_dat;
}
else
{
this.vertex_data.Add("vertices", point_dat);
}
Console.WriteLine("All points read in correctly!");
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("---------------No Points existent");
}
// Read Point Indices
int numpolydatacells = (int)polydata.GetNumberOfCells();
vtkCell polydataCell;
vtkIdList pts;
if (numpolydatacells != 0)
{
int counter = 0;
cells.SetNumberOfCells(numpolydatacells);
for (int i = 0; i < numpolydatacells; i++)
{
polydataCell = polydata.GetCell(i);
int numCellPoints = (int)polydataCell.GetNumberOfPoints();
cells.InsertNextCell(polydataCell);
Vector3 trianglePoints = new Vector3();
if (numCellPoints == 3)
{
pts = polydataCell.GetPointIds();
int one = (int)pts.GetId(0);
int two = (int)pts.GetId(1);
int three = (int)pts.GetId(2);
//this.Get_Triangle(counter, pts);
trianglePoints = new Vector3(one, two, three);
counter++;
}
triangleList.Add(trianglePoints);
}
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("---------------No Triangles existent");
}
// Read point data
vtkPointData pointData = polydata.GetPointData();
// Load point attributes
this.Load_Point_Attributes(pointData);
return(true);
}
private void BandedPolyDataContourFilter()
{
vtkPoints pts = vtkPoints.New();
pts.InsertPoint(0, 0, 0, 0);
pts.InsertPoint(1, 0, 1, 0);
pts.InsertPoint(2, 0, 2, 0);
pts.InsertPoint(3, 1, 0, 0);
pts.InsertPoint(4, 1, 1, 0);
pts.InsertPoint(5, 1, 2, 0);
pts.InsertPoint(6, 2, 0, 0);
pts.InsertPoint(7, 2, 2, 0);
pts.InsertPoint(8, 3, 0, 0);
pts.InsertPoint(9, 3, 1, 0);
pts.InsertPoint(10, 3, 2, 0);
pts.InsertPoint(11, 4, 0, 0);
pts.InsertPoint(12, 6, 0, 0);
pts.InsertPoint(13, 5, 2, 0);
pts.InsertPoint(14, 7, 0, 0);
pts.InsertPoint(15, 9, 0, 0);
pts.InsertPoint(16, 7, 2, 0);
pts.InsertPoint(17, 9, 2, 0);
pts.InsertPoint(18, 10, 0, 0);
pts.InsertPoint(19, 12, 0, 0);
pts.InsertPoint(20, 10, 1, 0);
pts.InsertPoint(21, 12, 1, 0);
pts.InsertPoint(22, 10, 2, 0);
pts.InsertPoint(23, 12, 2, 0);
pts.InsertPoint(24, 10, 3, 0);
pts.InsertPoint(25, 12, 3, 0);
vtkCellArray polys = vtkCellArray.New();
polys.InsertNextCell(4);
polys.InsertCellPoint(14);
polys.InsertCellPoint(15);
polys.InsertCellPoint(17);
polys.InsertCellPoint(16);
polys.InsertNextCell(3);
polys.InsertCellPoint(11);
polys.InsertCellPoint(12);
polys.InsertCellPoint(13);
vtkFloatArray scalars = vtkFloatArray.New();
scalars.SetNumberOfTuples(26);
scalars.SetTuple1(0, 0);
scalars.SetTuple1(1, 50);
scalars.SetTuple1(2, 100);
scalars.SetTuple1(3, 0);
scalars.SetTuple1(4, 50);
scalars.SetTuple1(5, 100);
scalars.SetTuple1(6, 10);
scalars.SetTuple1(7, 90);
scalars.SetTuple1(8, 10);
scalars.SetTuple1(9, 50);
scalars.SetTuple1(10, 90);
scalars.SetTuple1(11, 10);
scalars.SetTuple1(12, 40);
scalars.SetTuple1(13, 100);
scalars.SetTuple1(14, 0);
scalars.SetTuple1(15, 60);
scalars.SetTuple1(16, 40);
scalars.SetTuple1(17, 100);
scalars.SetTuple1(18, 0);
scalars.SetTuple1(19, 25);
scalars.SetTuple1(20, 25);
scalars.SetTuple1(21, 50);
scalars.SetTuple1(22, 50);
scalars.SetTuple1(23, 75);
scalars.SetTuple1(24, 75);
scalars.SetTuple1(25, 100);
vtkPolyData polyData = vtkPolyData.New();
polyData.SetPoints(pts);
polyData.SetPolys(polys);
polyData.GetPointData().SetScalars(scalars);
vtkBandedPolyDataContourFilter bf = vtkBandedPolyDataContourFilter.New();
#if VTK_MAJOR_VERSION_5
bf.SetInput(polyData);
#else
bf.SetInputData(polyData);
#endif
bf.GenerateValues(3, 25, 75);
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
mapper.SetInputConnection(bf.GetOutputPort());
mapper.SetScalarModeToUseCellData();
mapper.SetScalarRange(0, 4);
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(.2, .3, .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 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);
}
/// <summary>
/// Generates a Unity Mesh from a vtkPolyData.
/// </summary>
/// <param name="pd">The vtk poly data.</param>
/// <returns>The Unity Mesh (without colors).</returns>
private static Mesh PolyDataToMesh(vtkPolyData pd)
{
if (pd == null)
{
Debug.LogWarning("No PolyData passed!");
return null;
}
var numVertices = pd.GetNumberOfPoints();
if (numVertices == 0)
{
Debug.LogWarning("No vertices to convert!");
return null;
}
var mesh = new Mesh();
// Points / Vertices
var vertices = new Vector3[numVertices];
for (var i = 0; i < numVertices; ++i)
{
var pnt = pd.GetPoint(i);
// Flip z-up to y-up
vertices[i] = new Vector3(-(float) pnt[0], (float) pnt[2], (float) pnt[1]);
}
mesh.vertices = vertices;
// Normals
var vtkNormals = pd.GetPointData().GetNormals();
if (vtkNormals != null)
{
var numNormals = vtkNormals.GetNumberOfTuples();
var normals = new Vector3[numNormals];
for (var i = 0; i < numNormals; i++)
{
var normal = vtkNormals.GetTuple3(i);
// flip normals ?
normals[i] = new Vector3(-(float) normal[0], -(float) normal[1], -(float) normal[2]);
}
mesh.normals = normals;
}
else
{
Debug.Log("No Normals!");
}
// Texture coordinates
var vtkTexCoords = pd.GetPointData().GetTCoords();
if (vtkTexCoords != null)
{
var numCoords = vtkTexCoords.GetNumberOfTuples();
var uvs = new Vector2[numCoords];
for (var i = 0; i < numCoords; ++i)
{
var texCoords = vtkTexCoords.GetTuple2(i);
uvs[i] = new Vector2((float) texCoords[0], (float) texCoords[1]);
}
mesh.uv = uvs;
}
// Triangles / Cells
var numTriangles = pd.GetNumberOfPolys();
var polys = pd.GetPolys();
if (polys.GetNumberOfCells() > 0)
{
var triangles = new int[numTriangles*3];
var prim = 0;
var pts = vtkIdList.New();
polys.InitTraversal();
while (polys.GetNextCell(pts) != 0)
{
for (var i = 0; i < pts.GetNumberOfIds(); ++i)
triangles[prim*3 + i] = pts.GetId(i);
++prim;
}
mesh.SetTriangles(triangles, 0);
//Mesh.RecalculateNormals();
mesh.RecalculateBounds();
return mesh;
}
// Lines
var lines = pd.GetLines();
if (lines.GetNumberOfCells() > 0)
{
var idList = new ArrayList();
var pts = vtkIdList.New();
lines.InitTraversal();
while (lines.GetNextCell(pts) != 0)
{
for (var i = 0; i < pts.GetNumberOfIds() - 1; ++i)
{
idList.Add(pts.GetId(i));
idList.Add(pts.GetId(i + 1));
}
}
mesh.SetIndices(idList.ToArray(typeof (int)) as int[], MeshTopology.Lines, 0);
mesh.RecalculateBounds();
return mesh;
}
// Points
var points = pd.GetVerts();
var numPointCells = points.GetNumberOfCells();
if (numPointCells > 0)
{
var idList = new ArrayList();
var pts = vtkIdList.New();
points.InitTraversal();
while (points.GetNextCell(pts) != 0)
{
for (int i = 0; i < pts.GetNumberOfIds(); ++i)
{
idList.Add(pts.GetId(i));
}
}
mesh.SetIndices(idList.ToArray(typeof (int)) as int[], MeshTopology.Points, 0);
mesh.RecalculateBounds();
}
return mesh;
}
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);
}
