private void CreateScalarBar()
{
// Initialize ScalarBar actor
ScalarBar = vtkScalarBarActor.New();
ScalarBar.SetLookupTable(colorLookupTable);
// Assign default number of colors and label format
ScalarBar.SetNumberOfLabels(10);
ScalarBar.SetLabelFormat("%.2e");
TextProp = vtkTextProperty.New();
TextProp.SetFontSize(12);
TextProp.SetBold(0);
TextProp.SetFontFamilyToArial();
TextProp.ItalicOff();
TextProp.SetJustificationToLeft();
TextProp.SetVerticalJustificationToBottom();
TextProp.ShadowOff();
TextProp.SetColor(1, 1, 1);
ScalarBar.SetTitleTextProperty(TextProp);
ScalarBar.SetLabelTextProperty(TextProp);
// Assign default size of Scalar Bar
ScalarBar.SetMaximumWidthInPixels(120);
ScalarBar.SetPosition(0.015, 0.10);
ScalarBar.SetPosition2(0.16, 0.90);
//Hide ScalarBar
ScalarBar.VisibilityOff();
//Add to Viewport
Viewport.AddActor2D(ScalarBar);
}
protected DatasetUnit()
{
lookupTable = vtkLookupTable.New();
lookupTable.SetNumberOfColors(100);
lookupTable.SetHueRange(0.67, 0.0);
lookupTable.Build();
scalarBarActor.SetOrientationToHorizontal();
scalarBarActor.SetLookupTable(lookupTable);
scalarBarActor.SetTitle(fieldName);
scalarBarActor.GetAnnotationTextProperty().SetColor(0, 0, 0);
scalarBarActor.GetTitleTextProperty().SetColor(0, 0, 0);
scalarBarActor.GetLabelTextProperty().SetColor(0, 0, 0);
scalarBarActor.GetAnnotationTextProperty().SetFontSize(20);
scalarBarActor.GetTitleTextProperty().SetFontSize(20);
scalarBarActor.GetLabelTextProperty().SetFontSize(20);
scalarBarActor.GetAnnotationTextProperty().SetFontFamilyToArial();
scalarBarActor.GetTitleTextProperty().SetFontFamilyToArial();
scalarBarActor.GetLabelTextProperty().SetFontFamilyToArial();
scalarBarActor.GetAnnotationTextProperty().ItalicOff();
scalarBarActor.GetTitleTextProperty().ItalicOff();
scalarBarActor.GetLabelTextProperty().ItalicOff();
scalarBarActor.GetAnnotationTextProperty().BoldOff();
scalarBarActor.GetTitleTextProperty().BoldOff();
scalarBarActor.GetLabelTextProperty().BoldOff();
scalarBarActor.SetUnconstrainedFontSize(true);
scalarBarActor.SetBarRatio(0.15);
scalarBarActor.SetNumberOfLabels(11);
}
//绘制色标
private vtkScalarBarActor BuildScalarBar()
{
vtkScalarBarActor scalarBar = vtkScalarBarActor.New();
scalarBar.SetLookupTable(m_LookupTable);
//scalarBar.SetTitle("Color Scale");
scalarBar.GetLabelTextProperty().SetFontSize(2);
scalarBar.GetLabelTextProperty().SetFontFamilyToTimes();
scalarBar.GetLabelTextProperty().SetItalic(0);
scalarBar.GetPositionCoordinate().SetCoordinateSystemToNormalizedViewport();
//设置位置（笛卡尔坐标系）
scalarBar.GetPositionCoordinate().SetValue(0.01, 0.5);
//设置色标的标注数目
scalarBar.SetNumberOfLabels(5);
scalarBar.SetOrientationToVertical();
scalarBar.SetWidth(0.12);
scalarBar.SetHeight(0.5);
return(scalarBar);
}
//Parameters for building a model
private void BasicVTKBuilder(ref vtkActor actor, ref vtkPoints points, ref vtkCellArray polys,
ref vtkFloatArray scalars, ref vtkLookupTable Luk, ref vtkActor2D actor2D)
{
int pointsNum = 0;
TowerModelInstance.VTKDrawModel(ref points, ref polys, ref scalars, ref pointsNum, paras);
vtkPolyData profile = vtkPolyData.New();
profile.SetPoints(points);
profile.SetPolys(polys);
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
if (paras.RotateAngle == 0)
{
profile.GetCellData().SetScalars(scalars);
mapper.SetInput(profile);
}
else
{
vtkRotationalExtrusionFilter refilter = vtkRotationalExtrusionFilter.New();
profile.Update();
profile.GetCellData().SetScalars(scalars);
//profile.GetPointData().SetScalars(scalars);
refilter.SetInput(profile);
refilter.SetResolution(50);
refilter.SetAngle(paras.RotateAngle);
refilter.SetTranslation(0);
refilter.SetDeltaRadius(0);
mapper.SetInputConnection(refilter.GetOutputPort());
}
mapper.SetScalarRange(TowerModelInstance.GetColorGenColorTableMinvalue(),
TowerModelInstance.GetColorGenColorTableMaxValue());
actor.SetMapper(mapper);
// This text property is for scalarBar
vtkTextProperty textProperty = vtkTextProperty.New();
//textProperty.SetFontFamilyToCourier();
//textProperty.SetColor(1.0, 1.0, 0.5);
textProperty.SetFontSize(10);
vtkScalarBarActor scalarBar = vtkScalarBarActor.New();
scalarBar.SetLookupTable(mapper.GetLookupTable());
scalarBar.SetTitle("Color Table");
scalarBar.SetNumberOfLabels(TowerModelInstance.GetColorGenColorTableSize());
scalarBar.SetTitleTextProperty(textProperty);
scalarBar.SetLabelTextProperty(textProperty);
scalarBar.SetWidth(0.07);
scalarBar.SetHeight(0.6);
//scalarBar.SetDrawFrame(1);
vtkLookupTable hueLut = vtkLookupTable.New();
hueLut.SetTableRange(TowerModelInstance.GetColorGenColorTableMinvalue(),
TowerModelInstance.GetColorGenColorTableMaxValue());
hueLut.SetHueRange(0.667, 0);
hueLut.SetSaturationRange(1, 1);
hueLut.SetValueRange(1, 1);
hueLut.SetNumberOfTableValues(TowerModelInstance.GetColorGenColorTableSize());
hueLut.Build();
mapper.SetLookupTable(hueLut);
scalarBar.SetLookupTable(hueLut);
// The actor links the data pipeline to the rendering subsystem
actor2D = scalarBar;
//actor.GetProperty().SetColor(0.388, 0.388, 0.388);
}
public void ChangeColorNumber(int numb)
{
colorLookupTable.SetNumberOfColors(numb);
ScalarBar.SetNumberOfLabels(numb);
}