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SourceCode/Code2026/inc/AdsXRx/XPolygonEx.h

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+//-----------------------------------------------------------------------------+
+// Copyright (C), 1998-2007, SH Software Co. Ltd.
+// = FileName	:   XPolygonEx类
+// = Version	:   ver2.0
+// = Author		:   zjq
+// = CreateDate	:   2002-09-09
+// = Description:   XPolygonEx类声明
+// = Maintainers: 
+//                  
+//-----------------------------------------------------------------------------+
+#ifndef _XPOLYGONEX_H_
+#define _XPOLYGONEX_H_
+
+#ifndef _XPOLY_H_
+#include "XPoly.h"
+#endif
+
+#ifndef _ENTITY_H_
+#include "Entity.h"
+#endif
+
+#ifndef _XTRIANGLE_H_
+#include "XTriangle.h"
+#endif
+
+#ifndef _LoopList_H_
+#include "LoopList.h"
+#endif
+
+
+// 多边形的三角形化
+class GEOAPI XPolygonEx : public XPoly 
+{
+public:
+	XPolygonEx();
+	XPolygonEx(XPoly &src);
+	XPolygonEx(Entity &ent);
+	XPolygonEx(const XPolygonEx &src);
+	virtual ~XPolygonEx();
+
+	virtual bool IsKindOf(TEntityId entType) const;
+	virtual TEntityId Type() const;
+	virtual void CopyFrom(const XEntity* pSrc);
+	
+	XPoint * operator [](int nIndex);
+	const XPoint & operator [](int nIndex) const;
+	XPolygonEx & operator = (const XPolygonEx &src);
+		
+    // 求法向量，用来作为坐标变换
+    int GetNormal(XVector3D &vtNormal) const;
+
+	int Make(const TCHAR *szLay);
+
+	// b2D--TRUE, 已经是二维；否则是三维，需要坐标变换
+    int Trianglize(DList<XTriangle> &lstTris, BOOL b2D = FALSE) const;
+	int SubTrianglize(DList<XTriangle> &lstTris);
+
+	int GetInsidePoint(XPoint &ptRet, BOOL b2D = FALSE) const;
+	int SubGetInsidePoint(XPoint &ptRet);
+
+	//是否为凸多边形，2D
+	BOOL IsConvex() const; 
+	BOOL IsVisible(int idx) const;
+	
+	void Reset();
+	void Reverse();
+	void Ecs2Wcs(XVector3D vtEcs);
+	void Wcs2Ecs(XVector3D vtEcs);
+  
+	void SetVisible(int idx, BOOL bVis);
+	
+	void RemoveNode(int nIndex);
+	void AppendNode(const XPoint &pt, int nIndex = 1);
+
+	double GetEdgeLength(int idx) const;
+	double GetAngle(int idx) const;
+	XPoint GetVertex(int idx) const;
+	LoopList<int>& GetVisibleFlag();
+	
+public:
+	// 1--visible; 0-invisible  
+	LoopList<int> m_lstVisibleFlag; 
+};
+
+#endif