vtkOrientationMarkerWidget的用法
下面的代码是添加一个坐标系
vtkTextProperty tprop = new vtkTextProperty();
tprop.SetColor(1,1,1);
tprop.ShadowOff();
vtkCubeAxesActor2D axes2 = new vtkCubeAxesActor2D();
axes2.SetInput(cast.GetOutput());
axes2.SetCamera(panel.GetRenderer().GetActiveCamera());
axes2.SetFlyModeToOuterEdges();
axes2.SetFontFactor(1.1);
axes2.SetAxisLabelTextProperty(tprop);
//axes.SetFontFactor(8);
panel.GetRenderer().AddViewProp(axes2);
//
// vtkTextActor textActor = new vtkTextActor();
// textActor.ScaledTextOn();
// textActor.SetDisplayPosition(90, 50);
// textActor.SetInput("This is a sphere");
// textActor.GetPosition2Coordinate().SetCoordinateSystemToNormalizedViewport();
// textActor.GetPosition2Coordinate().SetValue(0.6, 0.1);
//
// vtkTextProperty tprop2 = textActor.GetTextProperty();
// tprop2.SetFontSize(18);
// tprop2.SetFontFamilyToArial();
// tprop2.SetJustificationToCentered();
// tprop2.BoldOn();
// tprop2.ItalicOn();
// tprop2.ShadowOn();
// tprop2.SetColor(0, 0, 1);
// panel.GetRenderer().AddActor2D(textActor);
// vtkCubeSource cubeSrc = new vtkCubeSource();
// cubeSrc.SetXLength(100);
// cubeSrc.SetYLength(100);
// cubeSrc.SetZLength(100);
//
// vtkPolyDataMapper cubeMapper = new vtkPolyDataMapper();
// cubeMapper.SetInputConnection(cubeSrc.GetOutputPort());
vtkAnnotatedCubeActor cube = new vtkAnnotatedCubeActor();
cube.SetXPlusFaceText("R");
cube.SetXMinusFaceText("L");
cube.SetYPlusFaceText("A");
cube.SetYMinusFaceText("P");
cube.SetZPlusFaceText("I");
cube.SetZMinusFaceText("S");
cube.SetXFaceTextRotation(180);
cube.SetYFaceTextRotation(180);
cube.SetZFaceTextRotation(-90);
cube.SetFaceTextScale(0.65);
cube.GetCubeProperty().SetColor(1, 1, 1);
cube.GetTextEdgesProperty().SetLineWidth(1);
cube.GetTextEdgesProperty().SetDiffuse(0);
cube.GetTextEdgesProperty().SetAmbient(1);
cube.GetTextEdgesProperty().SetColor(0, 0, 0);
//
//
cube.GetXPlusFaceProperty().SetColor(0, 0, 0);
cube.GetXPlusFaceProperty().SetInterpolationToFlat();
cube.GetXMinusFaceProperty().SetColor(0, 0, 0);
cube.GetXMinusFaceProperty().SetInterpolationToFlat();
//
cube.GetYPlusFaceProperty().SetColor(0, 0, 0);
cube.GetYPlusFaceProperty().SetInterpolationToFlat();
//
cube.GetYMinusFaceProperty().SetColor(0, 0, 0);
cube.GetYMinusFaceProperty().SetInterpolationToFlat();
//
cube.GetZPlusFaceProperty().SetColor(0, 0, 0);
cube.GetZPlusFaceProperty().SetInterpolationToFlat();
//
cube.GetZMinusFaceProperty().SetColor(0, 0, 0);
cube.GetZMinusFaceProperty().SetInterpolationToFlat();
vtkAxesActor axes = new vtkAxesActor();
axes.SetShaftTypeToCylinder();
axes.SetXAxisLabelText("x");
axes.SetYAxisLabelText("y");
axes.SetZAxisLabelText("z");
axes.SetTotalLength(1.5, 1.5, 1.5);
vtkTextProperty tprop4 = new vtkTextProperty();
// tprop.ItalicOn();
tprop4.ShadowOn();
tprop4.SetFontFamilyToArial();
// tprop.SetFontFamilyToTimes();
axes.GetXAxisCaptionActor2D().SetCaptionTextProperty(tprop4);
//
vtkTextProperty tprop2 = new vtkTextProperty();
tprop2.ShallowCopy(tprop4);
axes.GetYAxisCaptionActor2D().SetCaptionTextProperty(tprop2);
//
vtkTextProperty tprop3 = new vtkTextProperty();
tprop3.ShallowCopy(tprop4);
axes.GetZAxisCaptionActor2D().SetCaptionTextProperty(tprop3);
vtkPropAssembly assembly = new vtkPropAssembly();
assembly.AddPart(cube);
assembly.AddPart(axes);
// vtkOrientationMarkerWidget产生的对象和原来的窗口不是在一个层次上，
// 并且自动激活了该对象的单击和移动事件，也就是可以改变这个对象的
// 大小和位置
vtkOrientationMarkerWidget widget = new vtkOrientationMarkerWidget();
widget.SetOutlineColor(0, 0, 0);
widget.SetOrientationMarker(assembly); // 必须：传一个vtkProp对象
widget.SetInteractor(panel.getIren());// 必须：传一个交互对象
widget.SetViewport(0.8, 0.0, 1, 0.2);
widget.SetEnabled(1);
widget.InteractiveOff();
// widget.InteractiveOn();
// widget.SetOutlineColor(0, 0, 0);
注意： widget.EnabledOn();
这个一定要写，不然切换或者刷新的时候，widget就不动了。
本文来源：http://hi.baidu.com/onlywater/item/b46e497bef8bbf3f714423c0