//普通模式_绘制
private void DrawMode_Normal()
{
#region 体属性 vtkVolumeProperty
//设定体数据的属性:不透明性和颜色值映射标量值
vtkVolumeProperty volumeProperty = vtkVolumeProperty.New();
volumeProperty.SetColor(m_ColorTransferFunction);
volumeProperty.SetScalarOpacity(m_PiecewiseFunction);
//设置插值类型
volumeProperty.SetInterpolationTypeToNearest();
volumeProperty.SetDiffuse(0.7);
volumeProperty.SetAmbient(0.01);
volumeProperty.SetSpecular(0.5);
volumeProperty.SetSpecularPower(100);
#endregion
//绘制方法:体射线投射
vtkVolumeRayCastCompositeFunction compositeFunction = vtkVolumeRayCastCompositeFunction.New();
#region 体数据映射器 vtkVolumeRayCastMapper
//体数据映射器
vtkVolumeRayCastMapper volumeMapper = vtkVolumeRayCastMapper.New();
volumeMapper.SetInput(m_ImageData);
volumeMapper.SetVolumeRayCastFunction(compositeFunction);
#endregion
#region 体 vtkVolume
//体
vtkVolume volume = vtkVolume.New();
volume.SetMapper(volumeMapper);
volume.SetProperty(volumeProperty);
#endregion
//模型体放入Renerer
m_Renderer.AddVolume(volume);
}
private vtkProp CreateVolumeRendering()
{
_opacityTransferFunction = new vtkPiecewiseFunction();
_opacityTransferFunction.ClampingOff();
_colorTransferFunction = new vtkColorTransferFunction();
_colorTransferFunction.SetColorSpaceToRGB();
_colorTransferFunction.ClampingOff();
SetOpacityTransferFunction();
SetColorTransferFunction();
vtkVolumeProperty volumeProperty = new vtkVolumeProperty();
volumeProperty.ShadeOn();
volumeProperty.SetInterpolationTypeToLinear();
volumeProperty.SetColor(_colorTransferFunction);
volumeProperty.SetScalarOpacity(_opacityTransferFunction);
volumeProperty.SetDiffuse(0.7);
volumeProperty.SetAmbient(0.1);
volumeProperty.SetSpecular(.3);
volumeProperty.SetSpecularPower(20);
//vtkOpenGLVolumeTextureMapper2D volumeMapper = new vtkOpenGLVolumeTextureMapper2D();
//vtkOpenGLVolumeTextureMapper3D volumeMapper = new vtkOpenGLVolumeTextureMapper3D();
//volumeMapper.SetPreferredMethodToNVidia();
//volumeMapper.SetSampleDistance(1.0f);
//int supported = volumeMapper.IsRenderSupported(volumeProperty);
vtkFixedPointVolumeRayCastMapper volumeMapper = new vtkFixedPointVolumeRayCastMapper();
//vtkVolumeRayCastMapper volumeMapper = new vtkVolumeRayCastMapper();
volumeMapper.SetInput(_volumeLayer.GetImageData());
////vtkVolumeRayCastCompositeFunction rayCastFunction = new vtkVolumeRayCastCompositeFunction();
////volumeMapper.SetVolumeRayCastFunction(rayCastFunction);
//vtkVolumeRayCastIsosurfaceFunction rayCastFunction = new vtkVolumeRayCastIsosurfaceFunction();
//volumeMapper.SetVolumeRayCastFunction(rayCastFunction);
_vtkVolume = new vtkVolume();
_vtkVolume.SetMapper(volumeMapper);
_vtkVolume.SetProperty(volumeProperty);
return(_vtkVolume);
}
private vtkProp CreateVolumeRendering()
{
_opacityTransferFunction = new vtkPiecewiseFunction();
_opacityTransferFunction.ClampingOff();
_colorTransferFunction = new vtkColorTransferFunction();
_colorTransferFunction.SetColorSpaceToRGB();
_colorTransferFunction.ClampingOff();
SetOpacityTransferFunction();
SetColorTransferFunction();
vtkVolumeProperty volumeProperty = new vtkVolumeProperty();
volumeProperty.ShadeOn();
volumeProperty.SetInterpolationTypeToLinear();
volumeProperty.SetColor(_colorTransferFunction);
volumeProperty.SetScalarOpacity(_opacityTransferFunction);
volumeProperty.SetDiffuse(0.7);
volumeProperty.SetAmbient(0.1);
volumeProperty.SetSpecular(.3);
volumeProperty.SetSpecularPower(20);
//vtkOpenGLVolumeTextureMapper2D volumeMapper = new vtkOpenGLVolumeTextureMapper2D();
//vtkOpenGLVolumeTextureMapper3D volumeMapper = new vtkOpenGLVolumeTextureMapper3D();
//volumeMapper.SetPreferredMethodToNVidia();
//volumeMapper.SetSampleDistance(1.0f);
//int supported = volumeMapper.IsRenderSupported(volumeProperty);
vtkFixedPointVolumeRayCastMapper volumeMapper = new vtkFixedPointVolumeRayCastMapper();
//vtkVolumeRayCastMapper volumeMapper = new vtkVolumeRayCastMapper();
volumeMapper.SetInput(_volumeLayer.GetImageData());
////vtkVolumeRayCastCompositeFunction rayCastFunction = new vtkVolumeRayCastCompositeFunction();
////volumeMapper.SetVolumeRayCastFunction(rayCastFunction);
//vtkVolumeRayCastIsosurfaceFunction rayCastFunction = new vtkVolumeRayCastIsosurfaceFunction();
//volumeMapper.SetVolumeRayCastFunction(rayCastFunction);
_vtkVolume = new vtkVolume();
_vtkVolume.SetMapper(volumeMapper);
_vtkVolume.SetProperty(volumeProperty);
return _vtkVolume;
}
public cVolumeRendering3D(vtkImageData imageData, cPoint3D Pos)
{
baseInit(null);
vtk_volume = vtkVolume.New();
// vtkFloatArray floatArray = vtkFloatArray.New();
//vtkCharArray charArray = vtkCharArray.New();
// vtkUnsignedShortArray UshortArray = vtkUnsignedShortArray.New();
vtkExtractVOI voi = vtkExtractVOI.New();
// vtkPiecewiseFunction opacityTransferFunction = vtkPiecewiseFunction.New();
vtkColorTransferFunction colorTransferFunction = vtkColorTransferFunction.New();
vtkVolumeProperty volumeProperty = vtkVolumeProperty.New();
// imageData.GetPointData().SetScalars(UshortArray);
voi = vtkExtractVOI.New();
voi.SetInput(imageData);
voi.SetVOI(0, imageData.GetDimensions()[0] - 1, 0, imageData.GetDimensions()[1] - 1, 0, imageData.GetDimensions()[2] - 1);
voi.SetSampleRate(1, 1, 1);
opacityTransferFunction = vtkPiecewiseFunction.New();
range = imageData.GetScalarRange();
opacityTransferFunction.AddPoint(100, 0.0);
opacityTransferFunction.AddPoint(1000, 1);
//opacityTransferFunction.AddPoint(range[0] + (range[1]-range[0])/2.0, 0.0);
//opacityTransferFunction.AddPoint(range[1], 0.7);
////Scale the image between 0 and 1 using a lookup table
//vtkLookupTable table = vtkLookupTable.New();
//table.SetValueRange(0,1);
//table.SetSaturationRange(0,0);
//table.SetRange(range[0], range[1]); //shoul here not be the minimum/maximum possible of "data"?
//table.SetRampToLinear();
//table.Build();
//vtkImageMapToColors color = vtkImageMapToColors.New();
//color.SetLookupTable(table);
//color.SetInputConnection(imageData.GetProducerPort());
vtkColorTransferFunction ColorTransferFunction = vtkColorTransferFunction.New();
ColorTransferFunction.AddRGBPoint(20.0, 0.0, 0.0, 1.0);
ColorTransferFunction.AddRGBPoint(255.0, 1.0, 0.0, 0.0);
//ColorTransferFunction.AddRGBPoint(1000.0, 0.8, 0.5, 0.0);
//opacityTransferFunction.ClampingOff();
volumeProperty = vtkVolumeProperty.New();
volumeProperty.SetColor(colorTransferFunction);
volumeProperty.SetScalarOpacity(opacityTransferFunction);
volumeProperty.SetInterpolationTypeToLinear();
volumeProperty.ShadeOn();
volumeProperty.SetAmbient(0.6);
volumeProperty.SetDiffuse(0.6);
volumeProperty.SetSpecular(0.1);
//volumeProperty.SetAmbient(0.1);
//volumeProperty.SetDiffuse(0.9);
//volumeProperty.SetSpecular(0.2);
//volumeProperty.SetSpecularPower(10.0);
//volumeProperty[band].SetScalarOpacityUnitDistance(0.8919);
vtkVolumeTextureMapper3D volumeTextureMapper = vtkVolumeTextureMapper3D.New();
////volumeTextureMapper.SetInputConnection(color.GetOutputPort());
volumeTextureMapper.SetInputConnection(voi.GetOutputPort());
//vtkVolumeRayCastCompositeFunction compositeFunction = vtkVolumeRayCastCompositeFunction.New();
//vtkVolumeRayCastMapper volumeMapper = vtkVolumeRayCastMapper.New();
//volumeMapper.SetVolumeRayCastFunction(compositeFunction);
//volumeMapper.SetInputConnection(voi.GetOutputPort());
vtk_volume = vtkVolume.New();
vtk_volume.SetMapper(volumeTextureMapper);
vtk_volume.SetProperty(volumeProperty);
vtk_volume.PickableOff();
vtk_volume.SetPosition(Pos.X, Pos.Y, Pos.Z);
}