VTK初学一,e_Triangle_CellArray三角形的另一种方法绘制

时间:2022-10-20 17:15:37
#ifndef INITIAL_OPENGL
#define INITIAL_OPENGL
#include <vtkAutoInit.h>
VTK_MODULE_INIT(vtkRenderingOpenGL)
VTK_MODULE_INIT(vtkInteractionStyle)
#endif

#include <iostream>
using namespace std;
#include "vtkPolyDataMapper.h"
#include "vtkWin32OpenGLRenderWindow.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkPoints.h"
#include "vtkWin32RenderWindowInteractor.h"
#include "vtkProperty.h"
#include "vtkFloatArray.h"
#include "vtkPolyData.h"
#include "vtkDataSetMapper.h"
#include "vtkActor2D.h"
#include "vtkContourFilter.h"
#include "vtkContourValues.h"
#include "vtkUnstructuredGrid.h"
#include "vtkPointData.h"
#include "vtkTriangle.h"
#include <vtkInteractorStyleTrackballCamera.h>
#include "vtkCellArray.h"

void myShow(vtkPolyData* aGrid)
{
    vtkSmartPointer<vtkPolyDataMapper> aMapper=vtkSmartPointer<vtkPolyDataMapper>::New();
    aMapper->SetInputData(aGrid);
    aMapper->ScalarVisibilityOn();

    vtkSmartPointer<vtkActor> anActor=vtkSmartPointer<vtkActor>::New();
    anActor->SetMapper(aMapper);
    anActor->GetProperty()->SetRepresentationToWireframe();
    anActor->GetProperty()->SetDiffuseColor(1,1,1);
//    anActor->GetProperty()->SetLineWidth(10);
    anActor->GetProperty()->SetPointSize(30);

    vtkSmartPointer<vtkRenderer> ren1=vtkSmartPointer<vtkRenderer>::New();
    vtkSmartPointer<vtkRenderWindow> renWin=vtkSmartPointer<vtkRenderWindow>::New();
    ren1->AddActor(anActor);
    ren1->ResetCamera();
    renWin->AddRenderer(ren1);
    renWin->SetSize(512,512);


    vtkSmartPointer<vtkRenderWindowInteractor> iren=vtkSmartPointer<vtkRenderWindowInteractor>::New();
    vtkSmartPointer<vtkInteractorStyleTrackballCamera> style=vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New();
    iren->SetRenderWindow(renWin);
    iren->SetInteractorStyle(style);
    iren->Start();
}

int main()
{
    //几何数据
    vtkSmartPointer<vtkPoints> trianglePoints=vtkSmartPointer<vtkPoints>::New();
    trianglePoints->SetNumberOfPoints(3);
    trianglePoints->InsertPoint(0,0,0,0);
    trianglePoints->InsertPoint(1,1,0,0);
    trianglePoints->InsertPoint(2,1,1,1);
    //属性数据
    vtkSmartPointer<vtkFloatArray> pointsScalars=vtkSmartPointer<vtkFloatArray>::New();
    pointsScalars->SetNumberOfTuples(3);
    pointsScalars->SetValue(0,0);
    pointsScalars->SetValue(1,1);
    pointsScalars->SetValue(2,0);
    //形成组元数据
    vtkSmartPointer<vtkCellArray> lines=vtkSmartPointer<vtkCellArray>::New();
    lines->InsertNextCell(4);
    lines->InsertCellPoint(0);
    lines->InsertCellPoint(1);
    lines->InsertCellPoint(2);
    lines->InsertCellPoint(0);
    //几何轮廓
    vtkSmartPointer<vtkPolyData> profile=vtkSmartPointer<vtkPolyData>::New();
    profile->SetPoints(trianglePoints);
    profile->SetLines(lines);
    profile->GetPointData()->SetScalars(pointsScalars);
    myShow(profile);
    return 0;
}

VTK初学一,e_Triangle_CellArray三角形的另一种方法绘制