//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TGGeCurveSegment 类
// = Version	:   ver2.0
// = Author		:   wlw
// = CreateDate	:   2002-09-09
// = Description:   TGGeCurveSegment 定义
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#include "StdAfx.h"
#include "TGGiWallVector.h"
#include "TSortWallOnPt.h"
#include "TAecSpaceWall.h"
#include "TEntitySet.h"
#include "TADSGePoint3d.h"

TGGiWallVector::TGGiWallVector(TAecSpaceWall *pWallData,  ads_real dDir)
	: pWall(pWallData), nDirection(dDir) 
{
	
}

// 以ptLoc为参考点定义方向,返回左边的曲线
// Bugs: When a Arc The direction of start and end is exact same
// 考虑了墙体标高, 用区域来判断两端点是否相等
TGGeCurveSegment TGGiWallVector::LeftCurve(TSortWallOnPt *pNode, int nFlg)
{
	ASSERT(pNode != NULL);

    TADSGePoint3d &ptStart = pWall->StartPoint();
    return (pNode->ExactInclude(ptStart) ? pWall->Offset(-pWall->GetWidth(0), nFlg) 
			: pWall->Offset(pWall->GetWidth(1), nFlg));
}

// 以ptLoc为参考点定义方向,返回右边的曲线
// 考虑了墙体标高, 用区域来判断两端点是否相等
TGGeCurveSegment TGGiWallVector::RightCurve(TSortWallOnPt *pNode, int nFlg)
{
	ASSERT(pNode != NULL);

    TADSGePoint3d &ptStart = pWall->StartPoint();
    return (pNode->ExactInclude(ptStart) ? pWall->Offset(pWall->GetWidth(1), nFlg) 
			: pWall->Offset(-pWall->GetWidth(0), nFlg));
	
}

// 0--equal;  1--not equal
int TGGiWallVector::FindByEntity(const TGGiWallVector *ptrSrc, const void *ptrEnt)
{
	int nEqual = ptrSrc->pWall->m_ent == *(const TEntitySet *)ptrEnt;
	return !nEqual;
}