1. 例項的編譯執行

新建工程時，可以直接通過cmake生成，但如果工程沒有編譯完全或者安裝成功的話，在安裝目錄沒法找到GUISupport/MFC/VTKMFCSettings.cmake,從而無法正常新建工程。這裡主要講解手動新建工程的過程，以方便大家的學習

和進一步理解。

a.新建工程，然後將vtkSDI資料夾直接覆蓋工程裡面的檔案，res檔案可以不復制。

b.設定標頭檔案

b.新增lib路徑和檔案

c.修改property裡面的general選項裡的character set的設定。

d.編譯執行

e.選擇vtkdata中的vtk檔案，然後進行檢視處理

值得注意的是，要運用vtk和MFC聯合程式設計，編譯VTK原始碼的時候一定要選擇vtk gui support裡的MFC.

2.例項原始碼詳解

學過MFC的基本都知道，MFC中view類主要處理顯示檢視，doc類處理文件，mainframe主要為整個視窗的和工程的設定管理。由此，VTK與MFC聯合程式設計時，需要主要的是資料操作，以及顯示要很好的與MFC中的結構結合，做到MVC分離的要求和規範，檢視-模型和控制一定要處理開來，尤其是大工程的處理時，才能不混亂。

a.view類設定

標頭檔案

1. // vtkSDIView.h : interface of the CvtkSDIView class

2. //

3. #pragma once

1. //新增MFC顯示視窗的標頭檔案

2. #include "vtkMFCWindow.h"

3. class CvtkSDIView : public CView

4. {

5. public:

6. virtual ~CvtkSDIView();

7. #ifdef _DEBUG

8. virtual void AssertValid() const;

9. virtual void Dump(CDumpContext& dc) const;

10. #endif

11. CvtkSDIDoc* GetDocument() const;

1. //獲得vtkRender的指標

2. vtkRenderer* GetRenderer() { ASSERT(pvtkRenderer); return pvtkRenderer; }

3. virtual void OnDraw(CDC* pDC); // overridden to draw this view

4. afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);

5. afx_msg void OnDestroy();

6. afx_msg BOOL OnEraseBkgnd(CDC* pDC);

7. afx_msg void OnSize(UINT nType, int cx, int cy);

8. private:

1. //顯示的變數，vtkrender和vtkMFCWindow

2. vtkRenderer *pvtkRenderer;

3. vtkMFCWindow *pvtkMFCWindow;

4. protected:

5. DECLARE_DYNCREATE(CvtkSDIView)

6. CvtkSDIView();

7. virtual BOOL OnPreparePrinting(CPrintInfo* pInfo);

8. virtual void OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo);

9. virtual void OnEndPrinting(CDC* pDC, CPrintInfo* pInfo);

10. DECLARE_MESSAGE_MAP()

11. public:

12. virtual void OnInitialUpdate();

13. };

14. #ifndef _DEBUG // debug version in vtkSDIView.cpp

15. inline CvtkSDIDoc* CvtkSDIView::GetDocument() const

16. { return reinterpret_cast<CvtkSDIDoc*>(m_pDocument); }

17. #endif

實現檔案

1. // vtkSDIView.cpp : implementation of the CvtkSDIView class

2. //

3. #include "stdafx.h"

4. #include "vtkSDI.h"

5. #include "vtkSDIDoc.h"

6. #include "vtkSDIView.h"

7. #include "vtkCallbackCommand.h"

8. #ifdef _DEBUG

9. #define new DEBUG_NEW

10. #endif

11. // CvtkSDIView

12. IMPLEMENT_DYNCREATE(CvtkSDIView, CView)

13. BEGIN_MESSAGE_MAP(CvtkSDIView, CView)

14. // Standard printing commands

15. ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)

16. ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)

17. ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)

18. ON_WM_CREATE()

19. ON_WM_DESTROY()

20. ON_WM_ERASEBKGND()

21. ON_WM_SIZE()

22. END_MESSAGE_MAP()

23. // CvtkSDIView construction/destruction

24. CvtkSDIView::CvtkSDIView()

25. {

26. this->pvtkMFCWindow = NULL;

27. //新建檢視類物件

28. this->pvtkRenderer = vtkRenderer::New();

29. }

30. CvtkSDIView::~CvtkSDIView()

31. {

32. // delete generic vtk window

33. if (this->pvtkMFCWindow) delete this->pvtkMFCWindow;

34. }

35. void CvtkSDIView::OnDraw(CDC* pDC)

36. {

37. CvtkSDIDoc* pDoc = GetDocument();

38. ASSERT_VALID(pDoc);

39. if (this->pvtkMFCWindow)

40. {

41. if (pDC->IsPrinting())

42. this->pvtkMFCWindow->DrawDC(pDC);

43. }

44. }

45. // CvtkSDIView printing

46. BOOL CvtkSDIView::OnPreparePrinting(CPrintInfo* pInfo)

47. {

48. // default preparation

49. return DoPreparePrinting(pInfo);

50. }

51. void CvtkSDIView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)

52. {

53. // TODO: add extra initialization before printing

54. }

55. void CvtkSDIView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)

56. {

57. // TODO: add cleanup after printing

58. }

59. // CvtkSDIView diagnostics

60. #ifdef _DEBUG

61. void CvtkSDIView::AssertValid() const

62. {

63. CView::AssertValid();

64. }

65. void CvtkSDIView::Dump(CDumpContext& dc) const

66. {

67. CView::Dump(dc);

68. }

69. CvtkSDIDoc* CvtkSDIView::GetDocument() const // non-debug version is inline

70. {

71. ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CvtkSDIDoc)));

72. return (CvtkSDIDoc*)m_pDocument;

73. }

74. #endif //_DEBUG

75. // CvtkSDIView message handlers

76. int CvtkSDIView::OnCreate(LPCREATESTRUCT lpCreateStruct)

77. {

78. if (CView::OnCreate(lpCreateStruct) == -1)

79. return -1;

80. return 0;

81. }

82. void CvtkSDIView::OnDestroy()

83. {

84. // Delete the the renderer, window and interactor objects.

85. if (this->pvtkRenderer) this->pvtkRenderer->Delete();

86. // destroy base

87. CView::OnDestroy();

88. }

89. BOOL CvtkSDIView::OnEraseBkgnd(CDC* pDC)

90. {

91. return TRUE;

92. }

93. void CvtkSDIView::OnSize(UINT nType, int cx, int cy)

94. {

95. CView::OnSize(nType, cx, cy);

96. if (this->pvtkMFCWindow)

97. this->pvtkMFCWindow->MoveWindow(0, 0, cx, cy);

98. }

99. static void handle_double_click(vtkObject* obj, unsigned long,

100. void*, void*)

101. {

1. //互動響應回撥函式，輸出提示資訊

2. vtkRenderWindowInteractor* iren = vtkRenderWindowInteractor::SafeDownCast(obj);

3. if(iren && iren->GetRepeatCount())

4. {

5. AfxMessageBox("Double Click");

6. }

7. }

8. void CvtkSDIView::OnInitialUpdate()

9. {

10. CView::OnInitialUpdate();

1. //初始化的時候建立vtkMFCwindow物件

2. if (this->pvtkMFCWindow) delete this->pvtkMFCWindow;

3. this->pvtkMFCWindow = new vtkMFCWindow(this);

1. //將render物件新增到實現視窗vtkMFCwindow中

2. this->pvtkMFCWindow->GetRenderWindow()->AddRenderer(this->pvtkRenderer);

3. //新增互動中滑鼠左鍵響應回撥函式

4. vtkCallbackCommand* callback = vtkCallbackCommand::New();

5. callback->SetCallback(handle_double_click);

6. this->pvtkMFCWindow->GetInteractor()->AddObserver(vtkCommand::LeftButtonPressEvent, callback, 1.0);

7. callback->Delete();

8. }

a.Doc類設定  

標頭檔案

1. // vtkSDIDoc.h : interface of the CvtkSDIDoc class

2. //

3. #pragma once

4. class CvtkSDIDoc : public CDocument

5. {

6. protected: // create from serialization only

7. CvtkSDIDoc();

8. DECLARE_DYNCREATE(CvtkSDIDoc)

9. // Attributes

10. private:

11. vtkDataSetReader *pvtkDataSetReader;

12. // Operations

13. public:

14. // Overrides

15. public:

16. virtual BOOL OnNewDocument();

17. virtual void Serialize(CArchive& ar);

18. // Implementation

19. public:

20. virtual ~CvtkSDIDoc();

21. #ifdef _DEBUG

22. virtual void AssertValid() const;

23. virtual void Dump(CDumpContext& dc) const;

24. #endif

25. private:

26. void ExecutePipeline();

27. void RemoveActors();

1. //資料處理和顯示的mapper和actor物件

2. vtkDataSetMapper *pvtkDataSetMapper;

3. vtkActor *pvtkActor;

4. vtkActor2D *pvtkActor2D;

5. vtkTextMapper *pvtkTextMapper;

6. // Generated message map functions

7. protected:

8. DECLARE_MESSAGE_MAP()

9. public:

10. virtual void OnCloseDocument();

11. virtual BOOL OnOpenDocument(LPCTSTR lpszPathName);

12. };

實現檔案

1. // vtkSDIDoc.cpp : implementation of the CvtkSDIDoc class

2. //

3. #include "stdafx.h"

4. #include "vtkSDI.h"

5. #include "vtkSDIDoc.h"

6. #include "vtkSDIView.h"

7. #ifdef _DEBUG

8. #define new DEBUG_NEW

9. #endif

10. // CvtkSDIDoc

11. IMPLEMENT_DYNCREATE(CvtkSDIDoc, CDocument)

12. BEGIN_MESSAGE_MAP(CvtkSDIDoc, CDocument)

13. END_MESSAGE_MAP()

14. // CvtkSDIDoc construction/destruction

15. CvtkSDIDoc::CvtkSDIDoc()

16. {

17. this->pvtkDataSetReader = NULL;

18. // 建立物件，從而可以顯示

19. this->pvtkDataSetMapper = vtkDataSetMapper::New();

20. this->pvtkActor = vtkActor::New();

21. this->pvtkActor2D = vtkActor2D::New();

22. this->pvtkTextMapper = vtkTextMapper::New();

23. }

24. CvtkSDIDoc::~CvtkSDIDoc()

25. {

26. }

27. BOOL CvtkSDIDoc::OnNewDocument()

28. {

29. if (!CDocument::OnNewDocument())

30. return FALSE;

31. //移除原有actor物件

32. RemoveActors();

33. //執行資料處理流程

34. ExecutePipeline();

35. return TRUE;

36. }

37. // CvtkSDIDoc serialization

38. void CvtkSDIDoc::Serialize(CArchive& ar)

39. {

40. if (ar.IsStoring())

41. {

42. // TODO: add storing code here

43. }

44. else

45. {

46. // TODO: add loading code here

47. }

48. }

49. // CvtkSDIDoc diagnostics

50. #ifdef _DEBUG

51. void CvtkSDIDoc::AssertValid() const

52. {

53. CDocument::AssertValid();

54. }

55. void CvtkSDIDoc::Dump(CDumpContext& dc) const

56. {

57. CDocument::Dump(dc);

58. }

59. #endif //_DEBUG

60. // CvtkSDIDoc commands

61. void CvtkSDIDoc::RemoveActors()

62. {

63. //活的view類物件

64. POSITION pos = this->GetFirstViewPosition();

65. CvtkSDIView *pcvtkSDIView = NULL;

66. if (pos)

67. {

68. pcvtkSDIView = (CvtkSDIView *)GetNextView(pos);

69. }

70. else // return

71. {

72. ASSERT(FALSE);

73. return;

74. }

75. //移除actor物件

76. pcvtkSDIView->GetRenderer()->RemoveActor(this->pvtkActor);

77. pcvtkSDIView->GetRenderer()->RemoveActor(this->pvtkActor2D);

78. }

1. //openfile 開啟資料檔案，將資料匯入

2. BOOL CvtkSDIDoc::OnOpenDocument(LPCTSTR lpszPathName)

3. {

4. if (!CDocument::OnOpenDocument(lpszPathName))

5. return FALSE;

6. //移除物件

7. RemoveActors();

8. //讀入資料

9. this->pvtkDataSetReader = vtkDataSetReader::New();

10. this->pvtkDataSetReader->SetFileName(lpszPathName);

11. //執行資料匯入流程，匯入資料

12. ExecutePipeline();

13. return TRUE;

14. }

//釋放建立的記憶體

1. void CvtkSDIDoc::OnCloseDocument()

2. {

3. // delete data

4. if (this->pvtkDataSetReader) this->pvtkDataSetReader->Delete();

5. // Delete the the objects used to form the visualisation.

6. if (this->pvtkDataSetMapper) this->pvtkDataSetMapper->Delete();

7. if (this->pvtkActor) this->pvtkActor->Delete();

8. if (this->pvtkActor2D) this->pvtkActor2D->Delete();

9. if (this->pvtkTextMapper) this->pvtkTextMapper->Delete();

10. CDocument::OnCloseDocument();

11. }

1. //資料處理流程

2. void CvtkSDIDoc::ExecutePipeline()

3. {

4. // 獲得檢視類物件

5. POSITION pos = this->GetFirstViewPosition();

6. CvtkSDIView *pcvtkSDIView = NULL;

7. if (pos)

8. {

9. pcvtkSDIView = (CvtkSDIView *)GetNextView(pos);

10. }

11. else // return

12. {

13. ASSERT(FALSE);

14. return;

15. }

16. if (pvtkDataSetReader) // 有資料，將資料新增到render中顯示

17. {

18. this->pvtkDataSetMapper->SetInput(this->pvtkDataSetReader->GetOutput());

19. this->pvtkActor->SetMapper(this->pvtkDataSetMapper);

20. this->pvtkTextMapper->SetInput(this->pvtkDataSetReader->GetFileName());

21. this->pvtkTextMapper->GetTextProperty()->SetFontSize(12);

22. this->pvtkActor2D->SetMapper(this->pvtkTextMapper);

23. pcvtkSDIView->GetRenderer()->SetBackground(0.0,0.0,0.4);

24. pcvtkSDIView->GetRenderer()->AddActor(this->pvtkActor);

25. pcvtkSDIView->GetRenderer()->AddActor(this->pvtkActor2D);

26. pcvtkSDIView->GetRenderer()->ResetCamera();

27. pvtkDataSetReader->Delete();

28. pvtkDataSetReader = NULL;

29. }

30. else //無匯入資料，顯示textmapper, hello world

31. {

32. this->pvtkTextMapper->SetInput("Hello World");

33. this->pvtkTextMapper->GetTextProperty()->SetFontSize(24);

34. this->pvtkActor2D->SetMapper(this->pvtkTextMapper);

35. pcvtkSDIView->GetRenderer()->SetBackground(0.0,0.0,0.4);

36. pcvtkSDIView->GetRenderer()->AddActor(this->pvtkActor2D);

37. pcvtkSDIView->GetRenderer()->ResetCamera();

38. }

39. }