VTK beginner One, line of drawing C_line

#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>

void Myshow (vtksmartpointer<vtkunstructuredgrid> agrid)

{

    Set Mapper

    Vtksmartpointer<vtkdatasetmapper> amapper=vtksmartpointer<vtkdatasetmapper>::new ();

    Amapper->setinputdata (Agrid);

    Amapper->scalarvisibilityoff ();

    Vtksmartpointer<vtkactor> anactor=vtksmartpointer<vtkactor>::new ();

    Anactor->setmapper (Amapper);

    Anactor->getproperty ()->setrepresentationtopoints ();

    Anactor->getproperty ()->setrepresentationtowireframe ();

    Anactor->getproperty ()->setdiffusecolor (0,0,1);

    Anactor->getproperty ()->setlinewidth (5);

    Anactor->getproperty ()->setedgecolor (1,1,1);

    Anactor->getproperty ()->setpointsize (10);

Create a display window

    Vtksmartpointer<vtkrenderer> ren1=vtksmartpointer<vtkrenderer>::new ();

    Vtksmartpointer<vtkrenderwindow> renwin=vtksmartpointer<vtkrenderwindow>::new ();

    Ren1->addactor (Anactor);

    Renwin->addrenderer (REN1);

    Vtksmartpointer<vtkrenderwindowinteractor> iren=vtksmartpointer<vtkrenderwindowinteractor>::new ();

    Vtksmartpointer<vtkinteractorstyletrackballcamera> style=vtksmartpointer< Vtkinteractorstyletrackballcamera>::new ();

    Iren->setinteractorstyle (style);

    Iren->setrenderwindow (Renwin);

    Renwin->setsize (700,700);

    Ren1->resetcamera ();

    Renwin->render ();

    Iren->start ();

}

int main ()

{

    Geometry data

    Float pts[][3]={{0,0,0},{1,1,0}};

    Vtksmartpointer<vtkpoints> linepointes=vtksmartpointer<vtkpoints>::new ();

    Linepointes->setnumberofpoints (2);

    Linepointes->insertpoint (0,pts[0]);

    Linepointes->insertpoint (1,pts[1]);

    Property data

    Vtksmartpointer<vtkfloatarray> linescalars=vtksmartpointer<vtkfloatarray>::new ();

    Linescalars->setnumberoftuples (2);

    Linescalars->insertvalue (0,0);

    Linescalars->insertvalue (1,0);

    Topological structure

    Vtksmartpointer<vtkline> aline=vtksmartpointer<vtkline>::new ();

    Aline->getpointids ()->setid (0,0);

    Aline->getpointids ()->setid ();

    Combine the above three pieces of data into a grid

    Vtksmartpointer<vtkunstructuredgrid> alinegrid=vtksmartpointer<vtkunstructuredgrid>::new ();

    Alinegrid->setpoints (linepointes);

   Alinegrid->getpointdata ()->setscalars (linescalars);

    Alinegrid->insertnextcell (Aline->getcelltype (), Aline->getpointids ());

/********** displays the struct element in the window ****************************************,

    Myshow (Alinegrid);

    return 0;

}

VTK beginner One, line of drawing C_line