VTK实时变化刷新，动态点显示 别的帖子的修复版

#include <vtkAutoInit.h>
VTK_MODULE_INIT(vtkRenderingOpenGL2);
VTK_MODULE_INIT(vtkInteractionStyle);

#include "vtkActor.h"
#include "vtkCamera.h"
#include "vtkCellArray.h"
#include "vtkInteractorStyle.h"
#include "vtkInteractorStyleTrackballCamera.h"
#include "vtkPoints.h"
#include "vtkPolyData.h"
#include "vtkPolyDataMapper.h"
#include "vtkProperty.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"

#include <Windows.h>
#include <sstream>
#include <string>
using namespace std;

int main()
{
  double camera_pos[3] = {0, 0, 1};
  double camera_foc[3] = {0, 0, 0};
  double camera_ang = 120;

  double point_path[12][2] = {
      {0, 0},   {0.3, 0.5},  {0.6, 0.8},  {1., 1.}, {1.4, 0.8},  {1.7, 0.5},
      {2., 0.}, {1.7, -0.5}, {1.4, -0.8}, {1, -1.}, {0.7, -0.8}, {0.3, -0.5}};

  vtkRenderWindow* renderWindow = vtkRenderWindow::New();
  vtkIdType idtype;
  double x, y, z;

  vtkPoints* points = vtkPoints::New();
  points->SetNumberOfPoints(1);

  vtkCellArray* cells = vtkCellArray::New();
  /*vtkIdType id = 0;
  cells->InsertNextCell(1, &id);*/
  cells->InsertNextCell(1);
  cells->InsertCellPoint(0);
 
  vtkPolyData* polyData = vtkPolyData::New();
  polyData->SetPoints(points);
  polyData->SetVerts(cells);
  vtkPolyDataMapper* mapper = vtkPolyDataMapper::New();
  mapper->SetInputData(polyData);
  vtkActor* actor = vtkActor::New();
  actor->SetMapper(mapper);
  actor->GetProperty()->SetColor(0.0, 1.0, 0.0);
  actor->GetProperty()->SetPointSize(3);
  vtkRenderer* renderer = vtkRenderer::New();
  renderer->AddActor(actor);
  renderer->GetActiveCamera()->SetPosition(camera_pos);
  renderer->GetActiveCamera()->SetFocalPoint(camera_foc);
  renderer->GetActiveCamera()->SetViewAngle(camera_ang);

  renderWindow->AddRenderer(renderer);

  for (int i = 0; i < 100; i++)
  {
    vtkIdType idtype;
    double x, y, z;

    x = point_path[i % 12][0] - 0.02 * i;
    y = point_path[i % 12][1];
    z = 0;
    points->SetPoint(0, x, y, z);
    points->Modified(); // 标记 points 为已修改
    renderWindow->Render(); // 重新渲染场景

    Sleep(50);
  }
  cells->Delete();
  points->Delete();
  polyData->Delete();
  mapper->Delete();
  actor->Delete();
  renderer->Delete();
  renderWindow->Delete();

  return 0;
}

由于帖子回复不能多行代码，特意写本帖，原贴地址VTK实时变化刷新，动态点显示_vtk 改变renderwindow更新-优快云博客。