envi-code/SourceCode/Code2026/tg_shs/shs_geLib/TGGiCurveStream.cpp

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

TGGiCurveStream::TGGiCurveStream() 
{

}

void TGGiCurveStream::DrawXCurve(const TGGeCurveSegment &cv,double nThick)  
{
    m_lstCurves.Append(new TGGeCurveSegment(cv));
}

// 拷贝到另一个Dc去
void TGGiCurveStream::CopyTo(TGGiDrawStreamBase &toDc) const
{
    for(int i = 0; i < m_lstCurves.Length(); i++) 
	{
		toDc << m_lstCurves[i];
	}
}

void TGGiCurveStream::ClipIn(const TGGePoly2D &poly)  //内裁剪
{
    TDPtrList<TGGeCurveSegment> lstIn, lstOut, lstEdge;
    PolyClip(m_lstCurves, poly, lstIn, lstOut, lstEdge);
    m_lstCurves.Reset();

    *this << lstOut;
    *this << lstEdge;
}

void TGGiCurveStream::ClipOut(const TGGePoly2D &poly) //外裁剪
{
    TDPtrList<TGGeCurveSegment> lstIn, lstOut, lstEdge;
    PolyClip(m_lstCurves, poly, lstIn, lstOut, lstEdge);
    m_lstCurves.Reset();
    
	*this << lstOut;
    *this << lstEdge;
}

const TCHAR * TGGiCurveStream::Descriptor()
{
   return _T("TGGiCurveStream");
}

const TCHAR * TGGiCurveStream::Desc()
{
   return Descriptor();
}