Properties 如何在VTK中设置两个管之间区域的颜色
我已经沿着同一条线创建了两个管,下一步是设置两个管之间区域的颜色,但我不知道如何操作。有什么帮助吗?提前谢谢你!我的代码如下所示Properties 如何在VTK中设置两个管之间区域的颜色,properties,colors,vtk,Properties,Colors,Vtk,我已经沿着同一条线创建了两个管,下一步是设置两个管之间区域的颜色,但我不知道如何操作。有什么帮助吗?提前谢谢你!我的代码如下所示 #include <vtkSmartPointer.h> #include <vtkVersion.h> #include <vtkParametricFunctionSource.h> #include <vtkTupleInterpolator.h> #include <vtkTubeFilter.h>
#include <vtkSmartPointer.h>
#include <vtkVersion.h>
#include <vtkParametricFunctionSource.h>
#include <vtkTupleInterpolator.h>
#include <vtkTubeFilter.h>
#include <vtkParametricSpline.h>
#include <vtkDoubleArray.h>
#include <vtkPoints.h>
#include <vtkPolyData.h>
#include <vtkPointData.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
vtkSmartPointer<vtkActor> createTube(double rad1,double rad2,double rad3,double rad4,double rad5,double rad6)
{
vtkSmartPointer<vtkPoints> points =
vtkSmartPointer<vtkPoints>::New();
points->InsertPoint(0,1,0,0);
points->InsertPoint(1,2,0.3,0);
points->InsertPoint(2,3,0.1,0);
points->InsertPoint(3,4,0.2,0);
points->InsertPoint(4,5,0.5,0);
points->InsertPoint(5,6,0.4,0);
// Fit a spline to the points
vtkSmartPointer<vtkParametricSpline> spline =
vtkSmartPointer<vtkParametricSpline>::New();
spline->SetPoints(points);
vtkSmartPointer<vtkParametricFunctionSource> functionSource =
vtkSmartPointer<vtkParametricFunctionSource>::New();
functionSource->SetParametricFunction(spline);
functionSource->SetUResolution(10 * points->GetNumberOfPoints());
functionSource->Update();
// Interpolate the scalars
//double rad;
vtkSmartPointer<vtkTupleInterpolator> interpolatedRadius =
vtkSmartPointer<vtkTupleInterpolator> ::New();
interpolatedRadius->SetInterpolationTypeToLinear();
interpolatedRadius->SetNumberOfComponents(1);
interpolatedRadius->AddTuple(0,&rad1);
interpolatedRadius->AddTuple(1,&rad2);
interpolatedRadius->AddTuple(2,&rad3);
interpolatedRadius->AddTuple(3,&rad4);
interpolatedRadius->AddTuple(4,&rad5);
interpolatedRadius->AddTuple(5,&rad6);
// Generate the radius scalars
vtkSmartPointer<vtkDoubleArray> tubeRadius =
vtkSmartPointer<vtkDoubleArray>::New();
unsigned int n = functionSource->GetOutput()->GetNumberOfPoints();
tubeRadius->SetNumberOfTuples(n);
tubeRadius->SetName("TubeRadius");
double tMin = interpolatedRadius->GetMinimumT();
double tMax = interpolatedRadius->GetMaximumT();
double r;
for (unsigned int i = 0; i < n; ++i)
{
double t = (tMax - tMin) / (n - 1) * i + tMin;
interpolatedRadius->InterpolateTuple(t, &r);
tubeRadius->SetTuple1(i, r);
}
// Add the scalars to the polydata
vtkSmartPointer<vtkPolyData> tubePolyData =
vtkSmartPointer<vtkPolyData>::New();
tubePolyData = functionSource->GetOutput();
tubePolyData->GetPointData()->AddArray(tubeRadius);
tubePolyData->GetPointData()->SetActiveScalars("TubeRadius");
// Create the tubes
vtkSmartPointer<vtkTubeFilter> tuber =
vtkSmartPointer<vtkTubeFilter>::New();
tuber->SetInput(tubePolyData);
tuber->SetNumberOfSides(20);
tuber->SetVaryRadiusToVaryRadiusByAbsoluteScalar();
vtkSmartPointer<vtkPolyDataMapper> tubeMapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
tubeMapper->SetInputConnection(tuber->GetOutputPort());
tubeMapper->SetScalarRange(tubePolyData->GetScalarRange());
//vtkSmartPointer<vtkActor> lineActor = vtkSmartPointer<vtkActor>::New();
//lineActor->SetMapper(lineMapper);
vtkSmartPointer<vtkActor> tubeActor = vtkSmartPointer<vtkActor>::New();
tubeActor->SetMapper(tubeMapper);
return tubeActor;
}
int main()
{
vtkSmartPointer<vtkActor> tubeActor_1 = vtkSmartPointer<vtkActor>::New();
tubeActor_1= createTube(0.15,0.14,0.13,0.12,0.11,0.10);
vtkSmartPointer<vtkActor> tubeActor_2 = vtkSmartPointer<vtkActor>::New();
tubeActor_2= createTube(0.5,0.155,0.145,0.145,0.125,0.115);
//tubeActor_2->GetProperty()->SetOpacity(0.25);
// Setup render window, renderer, and interactor
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
renderer->AddActor(tubeActor_1);
renderer->AddActor(tubeActor_2);
renderer->SetBackground(1, 1, 1);
renderWindow->Render();
renderWindowInteractor->Start();
return 0;
}
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VTKSMARTCARTE(双rad1、双rad2、双rad3、双rad4、双rad5、双rad6)
{
VTKSmart指针点=
vtkSmartPointer::New();
点->插入点(0,1,0,0);
点->插入点(1,2,0.3,0);
点->插入点(2,3,0.1,0);
点->插入点(3,4,0.2,0);
点->插入点(4,5,0.5,0);
点->插入点(5,6,0.4,0);
//将样条曲线拟合到点
VTKSmart指针样条曲线=
vtkSmartPointer::New();
样条曲线->设定点(点);
vtkSmartPointer函数源=
vtkSmartPointer::New();
functionSource->SetParameterFunction(样条曲线);
functionSource->SetUResolution(10*points->GetNumberOfPoints());
函数源->更新();
//插值标量
//双rad;
VTKSmartedradius=
vtkSmartPointer::New();
插值半径->设置插值类型线性();
插值半径->设置组件数(1);
插值radius->AddTuple(0,&rad1);
插值radius->AddTuple(1,&rad2);
插值radius->AddTuple(2,&rad3);
插值radius->AddTuple(3,&rad4);
插值radius->AddTuple(4,&rad5);
插值radius->AddTuple(5,&rad6);
//生成半径标量
VTKSmart指针半径=
vtkSmartPointer::New();
unsigned int n=functionSource->GetOutput()->GetNumberOfPoints();
tubeRadius->SetNumberOfTuples(n);
tubeRadius->SetName(“tubeRadius”);
double tMin=interpolateradius->GetMinimumT();
双tMax=插值半径->GetMaximumT();
双r;
for(无符号整数i=0;i插值对偶(t和r);
管半径->设置参数1(i,r);
}
//将标量添加到polydata
VTKSmartData=
vtkSmartPointer::New();
tubePolyData=functionSource->GetOutput();
tubePolyData->GetPointData()->AddArray(tubeRadius);
tubePolyData->GetPointData()->SetActiveScalars(“TubeRadius”);
//创建管道
vtkSmartPointer管=
vtkSmartPointer::New();
tuber->SetInput(tubePolyData);
块茎->侧边的设置数(20);
块茎->SetVaryRadiusToVaryRadiusByAbsoluteScalar();
VTKSmart指针管映射器=
vtkSmartPointer::New();
tubeMapper->SetInputConnection(tuber->GetOutputPort());
tubeMapper->SetCalArrange(tubePolyData->GetScalarRange());
//vtkSmartPointer lineActor=vtkSmartPointer::New();
//lineActor->SetMapper(lineMapper);
vtkSmartPointer tubeActor=vtkSmartPointer::New();
tubeActor->SetMapper(tubeMapper);
回流管;
}
int main()
{
vtkSmartPointer tubeActor_1=vtkSmartPointer::New();
tubeActor_1=createTube(0.15,0.14,0.13,0.12,0.11,0.10);
vtkSmartPointer tubeActor_2=vtkSmartPointer::New();
tubeActor_2=createTube(0.5,0.155,0.145,0.145,0.125,0.115);
//tubeActor_2->GetProperty()->SetOpacity(0.25);
//设置渲染窗口、渲染器和交互器
VTKSmart指针渲染器=
vtkSmartPointer::New();
vtkSmartPointer渲染窗口=
vtkSmartPointer::New();
renderWindow->AddRenderer(渲染器);
vtkSmartPointer渲染器Windows WinterActor=
vtkSmartPointer::New();
RenderWindowWinterActor->SetRenderWindow(renderWindow);
渲染器->添加器(tubeActor_1);
渲染器->添加器(tubeActor_2);
渲染器->背景(1,1,1);
renderWindow->Render();
renderWindowInteractor->Start();
返回0;
}
是否要为两个管表面之间的“空”空间着色?否则,您可以尝试在闭合管的交点处创建一个polydata(如厚空心管)(带封顶的管+交点polydata过滤器)@lib谢谢您的回复。是的,我想给空的地方涂上颜色。我设置了管道的CappingOn(),并使用vtkIntersectionPolyDataFilter类来查找交叉点,但没有得到任何结果。