VTK：VTK嵌入MFC成功

VTK作为医学显示库，得到较多使用。作为较为上层的设计，对OpenGL进行了封装，并且有Windows、Linux、安卓等开发版本，可移植性较强。

不过VES暂时没有编译成功。

以下是嵌入MFC-IDC代码，有个缺陷，暂时没能修改。

代码：

showPointsInVtk(short* &depthImage, int HeightDepth, int WidthDepth,int IDCX)

{

	//double arr[3];

	vtkPoints * points = vtkPoints::New();

	int n = 0; int idx = 0; int Length = 3 * HeightDepth*WidthDepth;

	//首先读取点云数据到点表points同时指定点对应的id:

	for (int i = 0; i < HeightDepth; ++i){

		int LastPixel = i* WidthDepth;

		for (int j = 0; j < WidthDepth; ++j){

			int y = depthImage[3 * (j + LastPixel)];

			int x = depthImage[3 * (j + LastPixel) +1];

			int z = depthImage[3 * (j + LastPixel) +2];

			points->InsertPoint(n, x, y, z);

			n++;

		}

	}

	printf("%d\n", n);

	vtkPolyVertex * polyvertex = vtkPolyVertex::New();

	polyvertex->GetPointIds()->SetNumberOfIds(n);

        int i = 0; //建立拓扑关系

        for (i = 0; i < n; i++){

		polyvertex->GetPointIds()->SetId(i, i);

	}

	vtkUnstructuredGrid * grid = vtkUnstructuredGrid::New();

	grid->SetPoints(points);

	grid->InsertNextCell(polyvertex->GetCellType(),

		polyvertex->GetPointIds());

	vtkDataSetMapper *map1 = vtkDataSetMapper::New();

	map1->SetInputData(grid);

	vtkActor *actor1 = vtkActor::New();

	actor1->SetMapper(map1);

	actor1->GetProperty()->SetColor(0.194, 0.562, 0.75);

	vtkRenderer *ren = vtkRenderer::New();

	ren->AddActor(actor1);

	ren->SetBackground(0, 0, 0);

	//renWin和iren分别是vtkWin32OpenGLRenderWindow, vtkWin32RenderWindowInteractor

	vtkWin32RenderWindowInteractor        *iren = vtkWin32RenderWindowInteractor::New();

	vtkWin32OpenGLRenderWindow             *win = vtkWin32OpenGLRenderWindow::New();

	vtkInteractorStyleTrackballCamera    *style = vtkInteractorStyleTrackballCamera::New();

	win->Clean();

	win->SetSize(480, 360);

	win->BordersOn();

	win->AddRenderer(ren);

	iren->SetRenderWindow(win);

	iren->SetInteractorStyle(style);

	//搭上一个显示用的MFC窗口框架。

         CWnd *viewer_Wnd;

        viewer_Wnd = this->GetDlgItem(IDCX);

         HWND hWnd = (HWND)viewer_Wnd->m_hWnd;

         HWND hParent = ::GetParent(hWnd);

        //::ShowWindow(hParent, SW_HIDE);

        ::ShowWindow(hParent, 1);

        win->SetParentId(this->m_hWnd);

        iren->Start();

        map1->Delete();

        grid->Delete();

       actor1->Delete();

        polyvertex->Delete();

        ren->Delete();

        win->Delete();

        iren->Delete();

        return 1;

}

显示效果：

 注意事项：

使用

iren->Start();

导致renter不能更行，修改为以下代码可以完成动态更新：

把 render和win放在初始对话框初始化，其他代码修改为：

this->win->Render();

//在 对话框初始化时初始化Render

inline int Ciisu2vrMfcsDlg::showPointsInVtkG(short* &depthImage, int HeightDepth, int WidthDepth, int IDCX)

{

	//double arr[3];

	vtkPoints * points = vtkPoints::New();

	int n = 0; int idx = 0; int Length = 3 * HeightDepth*WidthDepth;

	//首先读取点云数据到点表points同时指定点对应的id:

	for (int i = 0; i < HeightDepth; ++i){

		int LastPixel = i* WidthDepth;

		for (int j = 0; j < WidthDepth; ++j){

			int y = depthImage[3 * (j + LastPixel)];

			int x = depthImage[3 * (j + LastPixel) + 1];

			int z = depthImage[3 * (j + LastPixel) + 2];//这里压缩四倍是比较好的方法//int z = (depthImage[(j + LastPixel)]) ;

			points->InsertPoint(n, x, y, z);

			n++;

		}

	}

	vtkPolyVertex * polyvertex = vtkPolyVertex::New();

	polyvertex->GetPointIds()->SetNumberOfIds(n);

	int i = 0;

	//建立拓扑关系

	for (i = 0; i < n; i++){

		polyvertex->GetPointIds()->SetId(i, i);

	}

	vtkUnstructuredGrid * grid = vtkUnstructuredGrid::New();

	grid->SetPoints(points);

	grid->InsertNextCell(polyvertex->GetCellType(),

		polyvertex->GetPointIds() );

	vtkDataSetMapper *map = vtkDataSetMapper::New();

	map->SetInputData(grid);

	vtkActor *actorG = vtkActor::New();

	actorG->SetMapper(map);

	actorG->GetProperty()->SetColor(0.194, 0.562, 0.75);

	vtkRenderer *ren = vtkRenderer::New();

	ren->AddActor(actorG);

	ren->SetBackground(0.13, 0.40, 0.15);

	this->win->AddRenderer(ren);

	this->win->Render();//自己写一个重载-更新函数！

	map->Delete();

	grid->Delete();

	actorG->Delete();

	polyvertex->Delete();

	return 1;

}

后记：

效果还不错，就是和OpenCV结合时有点麻烦，命名空间冲突。