180 lines
2.7 KiB
C++
180 lines
2.7 KiB
C++
//-----------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, SH Software Co. Ltd.
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// = FileName : XRegion2D
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// = Version : ver2.0
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// = Author : zjq
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// = CreateDate : 2002-09-09
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// = Description: XRegion2D 类定义
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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 "XRegion2D.h"
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#include "dbregion.h"
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#include "XGlobalCurveFunc.h"
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#include "XPrivateGlobalFunc.h"
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#include "XCurveInline.h"
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XRegion2D::XRegion2D()
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: XPoly2D(1)
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{
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}
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XRegion2D::XRegion2D(const XPoly2D &poly) : XPoly2D(poly)
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{
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}
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XRegion2D::~XRegion2D()
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{
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}
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void XRegion2D::AppendHole(XPoly2D *pPoly)
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{
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m_lstHole.Append(pPoly);
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}
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void XRegion2D::ClearHole()
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{
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m_lstHole.Reset();
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}
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long XRegion2D::GetHoleNum()const
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{
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return m_lstHole.Length();
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}
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const XPoly2D& XRegion2D::GetHole(long i)const
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{
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return m_lstHole[i];
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}
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XPoly2D& XRegion2D::GetHole(long i)
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{
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return *m_lstHole[i];
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}
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double XRegion2D::Area()const
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{
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double dArea = XPoly2D::Area();
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for (long i = 0; i < m_lstHole.Length(); i++)
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{
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dArea -= m_lstHole[i].Area();
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}
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return dArea;
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}
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int XRegion2D::HitTest2d(XPoint pt)const
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{
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int nRet = pt & (*this);
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if (nRet == PR_INSIDE)
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{
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for (long i = 0; i < m_lstHole.Length(); i++)
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{
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int nRet1 = pt & (m_lstHole[i]);
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if (nRet1 == PR_OUTSIDE)
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{
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continue;
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}
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else if (nRet1 == PR_EDGE)
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{
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return PR_EDGE;
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}
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else
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{
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return PR_OUTSIDE;
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}
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}
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}
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return nRet;
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}
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bool XRegion2D::IsValid()const
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{
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if (!IsClosed() || IsSelfIntersect())
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{
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return false;
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}
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for (long i = 0; i < m_lstHole.Length(); i++)
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{
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if (!m_lstHole[i].IsClosed()
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|| m_lstHole[i].IsSelfIntersect())
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{
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return false;
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}
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}
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if (Area() < 1E-6)
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{
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return false;
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}
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return true;
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}
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AcDbRegion* XRegion2D::AsRegion()const
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{
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if (!IsValid())
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{
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return NULL;
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}
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AcDbRegion *pRegion = XPoly2D::AsRegion();
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if (pRegion == NULL)
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{
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return NULL;
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}
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long i(0);
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for (i = 0; i < m_lstHole.Length(); i++)
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{
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AcDbRegion *pHole = m_lstHole[i].AsRegion();
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if (pHole == NULL)
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{
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break;
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}
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Acad::ErrorStatus es = pRegion->booleanOper(AcDb::kBoolSubtract,pHole);
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delete pHole;
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if (es != Acad::eOk)
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{
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break;
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}
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}
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if (i != m_lstHole.Length()
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|| pRegion->isNull())
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{
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delete pRegion;
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return NULL;
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}
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return pRegion;
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}
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bool XRegion2D::IsKindOf(XEntity::TEntityId entType) const
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{
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switch(entType)
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{
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case XEntity::eEntity:
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case XEntity::eCurve:
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case XEntity::eShape:
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case XEntity::ePoly:
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case XEntity::eRegion2D:
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return true;
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}
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return false;
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}
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XEntity::TEntityId XRegion2D::Type() const
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{
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return XEntity::eRegion2D;
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}
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