envi-code/SourceCode/Code2026/tg_shs/inc/TArch/TGGeVisibilityPoly2D.h

//------------------------------------------------------------------------+
// Copyright (C), 1998-2011, Beijing Tangent Software Co. Ltd.
// = FileName	:   TGGeVisibilityPoly2D类
// = Version	:   ver1.0
// = Author		:   xlc
// = CreateDate	:   2011-04-13
// = Description:   具有可见性属性的poly2d类声明
// = Maintainers: 
//                  
//------------------------------------------------------------------------+
#ifndef _TGGEVISIBILITYPOLY2D_H_
#define _TGGEVISIBILITYPOLY2D_H_

#ifndef _TGGEPOLY2D_H_
#include "TGGePoly2D.h"
#endif

#ifdef _TDPTRLIST_H_
#include "TDPtrList.h"
#endif

class TARCH_EXP TGGeVisibilityPoly2D : public TGGePoly2D
{
public: 
	TGGeVisibilityPoly2D();
	TGGeVisibilityPoly2D(const TGGeVisibilityPoly2D & src);
	virtual ~TGGeVisibilityPoly2D();

	virtual void Reset();
	virtual bool SetAcDbCurve(AcDbCurve* pCurve);

	// 获取索引nIndex对应的线段
	virtual int Nth(int nIndex, TGGeLine &xline, TGGeArc &xarc, AcDb::Visibility *pVal = NULL) const;
	virtual int Nth(int nIndex, TGGeCurveSegment & cvCurve, AcDb::Visibility *pVal = NULL) const;
	virtual int Nth(int nIndex, TGGeDirectionCurve &curve, AcDb::Visibility *pVal = NULL) const;

	// 反向重置对象
	virtual int Reverse();
	// 删除重复点，当bUnionCurve为真时，合并可见性相同的共线的直线或共圆的弧
	virtual int Compress(bool bUnionCurve = true);

	// 根据可见性，整体绘制对象，并设置其图层
	virtual int Make(LPCTSTR szLay = NULL) const;
	// 根据可见性，将各段分别绘制，并设置其图层
	virtual int MakeSegments(LPCTSTR szLay = NULL) const;
	// 根据可见性，绘制索引nIndex所在线段，并设置其图层
	virtual int MakeSegment(int nIndex, LPCTSTR szLay = NULL) const;

	virtual void TransformBy(const AcGeMatrix3d &mat);
	// 删除索引对应的顶点，凸度值，可见性
	virtual void RemoveNode(long nIndex);
	// nIndex为点链表的索引，当nIndex < Length() - 1 时 将点pt插入到索引nIndex之后，并设置其凸度值dBulge和可见性eVal；
	// 否则直接将点插入链表末尾，并设置其凸度值dBulge和可见性eVal
	virtual void InsertNodeAt(int nIndex, const TADSGePoint3d &pt, double dBulge = 0.0, AcDb::Visibility eVal = AcDb::kVisible);
	// 当ptOn为线上的点时，进行以下处理：1.ptOn为线的顶点时，直接修改该点的可见性；2.ptOn不为线的顶点时，将点插入到对象中，并设置其可见性
	virtual void InsertNodeAt(const TADSGePoint3d &ptOn, AcDb::Visibility eVal = AcDb::kVisible);
	// 设置两点间线段的可见性（两点必须都在线上）
	void InsertNodeAt(const TADSGePoint3d &ptOn1, const TADSGePoint3d &ptOn2,AcDb::Visibility eVal = AcDb::kInvisible);
	// 添加顶点，设置其凸度值和可见性
	virtual void AppendNode(const TADSGePoint3d &pt, ads_real dBulge = 0.0, AcDb::Visibility eVal = AcDb::kVisible);

	TGGeVisibilityPoly2D& operator = (const TGGeVisibilityPoly2D &src);

	// add by xlc on 110427 获得poly离pt点近的一端指向poly内的方向
	bool GetIDirection(AcGePoint3d pt, double& dDir);

	// 设置整体的可见性
	void SetVisible(AcDb::Visibility dNewVal);
	// 根据索引nIndex，设置某一段线的可见性
	void SetVisibleAt(int nIndex, AcDb::Visibility dNewVal);
	// 当ptOn为对象的顶点时，设置其所在线段的可见性
	void SetVisibleAt(const TADSGePoint3d& ptOn, AcDb::Visibility dNewVal);
	// 设置索引范围nFrom至nTo的线段的可见性(nFrom <= nTo)
	void SetVisibleAt(int nFrom, int nTo, AcDb::Visibility dNewVal);


	AcDb::Visibility GetVisibleAt(int nIndex)const;
	AcDb::Visibility GetVisibleAt(const TADSGePoint3d& ptOn)const;

	int SetVisibilities( TDPtrList<AcDb::Visibility> &arnVisibility );
	int GetVisibilities( TDPtrList<AcDb::Visibility> &arnVisibility );
	TDPtrList<AcDb::Visibility>& GetVisibilities();

private:
	TDPtrList<AcDb::Visibility> m_arnVisibility;
};

#endif