VTK初学一，c_Line_CellArray线段的CellArray绘制

VTK窗口默认坐标方向：
#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 "vtkLine.h"

#include <vtkInteractorStyleTrackballCamera.h>

#include <vtkCellArray.h>

void myShow(vtkPolyData* polydata)

{

    //设置映射器

    vtkSmartPointer<vtkPolyDataMapper> amapper=vtkSmartPointer<vtkPolyDataMapper>::New();

    amapper->SetInputData(polydata);

//    amapper->SetScalarVisibility(0);

    amapper->ScalarVisibilityOn();

    //声明一个演员

    vtkSmartPointer<vtkActor> anActor=vtkSmartPointer<vtkActor>::New();

    anActor->SetMapper(amapper);

    anActor->GetProperty()->SetRepresentationToWireframe();

    anActor->GetProperty()->SetDiffuseColor(,,);

    anActor->GetProperty()->SetLineWidth();

    anActor->GetProperty()->SetPointSize();

     //创建显示窗口

    vtkSmartPointer<vtkRenderer> ren1=vtkSmartPointer<vtkRenderer>::New();

    ren1->AddActor(anActor);

    vtkSmartPointer<vtkRenderWindow> renWin=vtkSmartPointer<vtkRenderWindow>::New();

    renWin->AddRenderer(ren1);

    vtkSmartPointer<vtkRenderWindowInteractor> iren=vtkSmartPointer<vtkRenderWindowInteractor>::New();

    iren->SetRenderWindow(renWin);

    vtkSmartPointer<vtkInteractorStyleTrackballCamera>style=vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New();

    iren->SetInteractorStyle(style);

    renWin->SetSize(,);

    ren1->ResetCamera();

    iren->Start();

}

int main()

{

    //几何数据

    float pts[][]={{,,},{,,}};

    vtkSmartPointer<vtkPoints> Pointes=vtkSmartPointer<vtkPoints>::New();

    Pointes->SetNumberOfPoints();

    Pointes->InsertPoint(,pts[]);

    Pointes->InsertPoint(,pts[]);

    //属性数据

    vtkSmartPointer<vtkFloatArray> lineScalars=vtkSmartPointer<vtkFloatArray>::New();

    lineScalars->SetNumberOfTuples();

    lineScalars->InsertValue(,);

    lineScalars->InsertValue(,);

    //拓扑结构

    vtkSmartPointer<vtkLine> aLine=vtkSmartPointer<vtkLine>::New();

    aLine->GetPointIds()->SetNumberOfIds();

    aLine->GetPointIds()->SetId(,);

    aLine->GetPointIds()->SetId(,);

    //创建单元数组

    vtkSmartPointer<vtkCellArray> lineCells=vtkSmartPointer<vtkCellArray>::New();

    lineCells->InsertNextCell(aLine);

    //将以上数据组合成一个vtkPolyData

    vtkSmartPointer<vtkPolyData> polydata=vtkSmartPointer<vtkPolyData>::New();

    polydata->SetPoints(Pointes);

    polydata->SetLines(lineCells);

    polydata->GetPointData()->SetScalars(lineScalars);

/**********在窗口中显示该结构元****************************************/

        myShow(polydata);

    return ;

}
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VTK初学一，c_Line_CellArray线段的CellArray绘制

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