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PolygonClipView.h
Package: Sutherland-Hodgman.rar　[view]
Upload User: shwyly
Upload Date: 2007-11-25
Package Size: 47k
Code Size: 2k
Category:

Graph Drawing

Development Platform:

Visual C++

PolygonClipView.h：Code Content
  1. // PolygonClipView.h : interface of the CPolygonClipView class
  2. //
  3. /////////////////////////////////////////////////////////////////////////////
  5. #if !defined(AFX_POLYGONCLIPVIEW_H__476467E3_C815_43CA_AF50_10AD5255877C__INCLUDED_)
  6. #define AFX_POLYGONCLIPVIEW_H__476467E3_C815_43CA_AF50_10AD5255877C__INCLUDED_
  8. #if _MSC_VER > 1000
  9. #pragma once
  10. #endif // _MSC_VER > 1000
  13. #define EdgeNum 6
  14. #define MAX 2*EdgeNum
  16. typedef struct{
  17. float x,y;
  18. }Vertex;
  20. typedef Vertex Edge[2];
  21. typedef Vertex VertexArray[MAX];
  24. class CPolygonClipView : public CView
  25. {
  26. protected: // create from serialization only
  27. CPolygonClipView();
  28. DECLARE_DYNCREATE(CPolygonClipView)
  30. // Attributes
  31. public:
  32. CPolygonClipDoc* GetDocument();
  33. CRect screen;
  34. Edge clipBoundary;
  35. int *outLength;//= new int outlength;
  36. int inLength;
  37. VertexArray inVertexArray,outVertexArray;
  38. // CPoint startpoint,lastendpoint;
  39. int count;
  41. // Operations
  42. public:
  45. // Overrides
  46. // ClassWizard generated virtual function overrides
  47. //{{AFX_VIRTUAL(CPolygonClipView)
  48. public:
  49. virtual void OnDraw(CDC* pDC);  // overridden to draw this view
  50. virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
  51. protected:
  52. //}}AFX_VIRTUAL
  54. // Implementation
  55. public:
  56. void SHPolygonClip(int inLength,VertexArray inVertexArray,int *outLength,VertexArray outVertexArray,Edge clipBoundary);
  57. void Output(Vertex *newVertex,int *outLength,VertexArray outVertexArray);
  58. bool Inside(Vertex* testVertex, Edge clipBoundary);
  59. void Intersect(Vertex *s,Vertex *p,Edge clipBoundary,Vertex *I);
  60. virtual ~CPolygonClipView();
  61. #ifdef _DEBUG
  62. virtual void AssertValid() const;
  63. virtual void Dump(CDumpContext& dc) const;
  64. #endif
  66. protected:
  68. // Generated message map functions
  69. protected:
  70. //{{AFX_MSG(CPolygonClipView)
  71. afx_msg void OnRButtonDown(UINT nFlags, CPoint point);
  72. afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
  73. //}}AFX_MSG
  74. DECLARE_MESSAGE_MAP()
  75. };
  77. #ifndef _DEBUG  // debug version in PolygonClipView.cpp
  78. inline CPolygonClipDoc* CPolygonClipView::GetDocument()
  79.    { return (CPolygonClipDoc*)m_pDocument; }
  80. #endif
  82. /////////////////////////////////////////////////////////////////////////////
  84. //{{AFX_INSERT_LOCATION}}
  85. // Microsoft Visual C++ will insert additional declarations immediately before the previous line.
  87. #endif // !defined(AFX_POLYGONCLIPVIEW_H__476467E3_C815_43CA_AF50_10AD5255877C__INCLUDED_)