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C++ VTK鼠标表面绘制曲线

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前言

C++ VTK鼠标表面绘制曲线，功能完善，代码整洁，规则，易读。

文章目录

        一、所需工具软件

        二、使用步骤

                1. 主要代码

                2. 运行结果

         三、在线协助

一、所需工具软件

          1. Visual Studio以上

          2. VTK库

二、使用步骤

1.主要代码

代码如下（示例）：

#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include namespace {class MyCallback : public vtkCommand{public:static MyCallback* New(){return new MyCallback;}MyCallback(){}virtual void Execute(vtkObject* caller, unsigned long, void*){vtkContourWidget* contourWidget =reinterpret_cast(caller);vtkContourRepresentation* rep = static_cast(}void SetSphereSource(vtkSmartPointer sphere){this->SphereSource = sphere;}private:vtkSmartPointer SphereSource;};} // namespaceint main(int, char*[])
{vtkNew colors;vtkNew sphereSource;sphereSource->SetRadius(5);sphereSource->Update();vtkNew mapper;mapper->SetInputConnection(sphereSource->GetOutputPort());vtkNew actor;actor->SetMapper(mapper);actor->GetProperty()->SetColor(colors->GetColor3d("MistyRose").GetData());// Create the RenderWindow, RenderervtkNew renderer;vtkNew renderWindow;renderWindow->AddRenderer(renderer);renderWindow->SetWindowName("PolygonalSurfacePointPlacer");vtkNew interactor;interactor->SetRenderWindow(renderWindow);renderer->AddActor(actor);renderer->SetBackground(colors->GetColor3d("CadetBlue").GetData());vtkNew contourWidget;contourWidget->SetInteractor(interactor);vtkOrientedGlyphContourRepresentation* rep =dynamic_cast(contourWidget->GetRepresentation());vtkNew pointPlacer;pointPlacer->AddProp(actor);pointPlacer->GetPolys()->AddItem(sphereSource->GetOutput());rep->GetLinesProperty()->SetColor(colors->GetColor3d("Crimson").GetData());rep->GetLinesProperty()->SetLineWidth(3.0);rep->SetPointPlacer(pointPlacer);contourWidget->EnabledOn();renderer->ResetCamera();renderWindow->Render();interactor->Start();return EXIT_SUCCESS;
}

4.运行结果如下： 

三、在线协助： 

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