115 lines
2.1 KiB
C++
115 lines
2.1 KiB
C++
//-------------------------------------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
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// = FileName : TPGeDscEdge3D 类
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// = Version : ver2.0
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// = Author : wlw
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// = CreateDate : 2002-09-09
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// = Description: TPGeDscEdge3D 定义
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// = Maintainers:
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//
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//-------------------------------------------------------------------------------------------------------+
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#include "StdAfx.h"
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#include "TPGeDscEdge3D.h"
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#include "TPGeDscPoint3D.h"
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TPGeDscEdge3D::TPGeDscEdge3D(TPGeDscPoint3D *p0, TPGeDscPoint3D *p1)
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: pPt0(p0),pPt1(p1),pPtFit(NULL)
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{
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pPt0->AppendEdge(this);
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pPt1->AppendEdge(this);
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}
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TPGeDscEdge3D::~TPGeDscEdge3D()
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{
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}
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TPGeDscPoint3D* TPGeDscEdge3D::GetNextPoint(TPGeDscPoint3D*pPt) const
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{
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return pPt0 == pPt?pPt1:pPt0;
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}
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double TPGeDscEdge3D::GetMinValue()
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{
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return Min2(pPt0->GetValue(),pPt1->GetValue());
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}
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bool TPGeDscEdge3D::operator > (const TPGeDscEdge&e) const
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{
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return false;
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}
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bool TPGeDscEdge3D::operator < (const TPGeDscEdge&e) const
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{
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return false;
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}
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void TPGeDscEdge3D::ConnectPath(TPGeFitPath3D&path)
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{
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AddFlag(VISITED);
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path << pPt0 << pPt1;
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TPGeDscPoint3D*pPtFrom = pPt1;
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TPGeDscEdge3D *pEdge = this;
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while(true)
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{
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TPGeDscPoint3D*pPt = pPtFrom->FindNext(pEdge);
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if(pPt != NULL)
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{
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if(pPt == pPt0)
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{
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path.SetClosed();
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return;
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}
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else
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{
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path << pPt;
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pPtFrom = pPt;
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}
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}
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else
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{
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break;
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}
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}
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pPtFrom = pPt0;
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pEdge = this;
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while(true)
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{
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TPGeDscPoint3D*pPt = pPtFrom->FindNext(pEdge);
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if(pPt != NULL)
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{
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path.InsertHead(pPt);
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pPtFrom = pPt;
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}
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else
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{
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break;
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}
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}
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}
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TPGeDscPoint3D* TPGeDscEdge3D::GetFitPoint(double value)
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{
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double dv = pPt1->GetValue() - pPt0->GetValue();
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if(EQUAL_ZERO(dv))
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{
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return NULL;
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}
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if(pPtFit != NULL)
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{
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return NULL;
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}
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double s = (value - pPt0->GetValue()) / dv;
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if(DOWN_ZERO(s) || UP_ZERO(s - 1))
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{
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return pPtFit = NULL;
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}
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double dx = pPt1->x-pPt0->x;
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double dy = pPt1->y-pPt0->y;
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double dz = pPt1->z-pPt0->z;
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return pPtFit = new TPGeDscPoint3D(pPt0->x + s * dx, pPt0->y + s * dy, pPt0->z + s * dz, value);
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} |