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

TGGeHoleModel::TGGeHoleModel()
{

}

TGGeHoleModel::~TGGeHoleModel()
{

}

void TGGeHoleModel::SetOutLine(const TGGePolygonEx& outline)
{
	m_outline = outline;
}

void TGGeHoleModel::GetOutLine(TGGePolygonEx& outline)
{
	outline = m_outline;
}

TGGePolygonEx& TGGeHoleModel::GetOutLine()
{
	return m_outline;
}

void TGGeHoleModel::AppendHoleList(TGGePolygonEx* pHole)
{
	m_holes.Append(pHole);
}

TDPtrList<TGGePolygonEx>& TGGeHoleModel::GetHoleList()
{
	return m_holes;
}

int TGGeHoleModel::GetHoleList(TDPtrList<TGGePolygonEx>& lstPolygonEx)
{
	for (int i = 0; i < m_holes.Length(); i++)
	{
		lstPolygonEx.Append(m_holes[i]);
	}
	return lstPolygonEx.Length();
}

BOOL TGGeHoleModel::IsValid() const 
{
	return (m_outline.Length() >= 3);
}

BOOL TGGeHoleModel::Wcs2Ecs(TVector3D &vtEcs, double &nElev) 
{
	ASSERT(IsValid());
	int nRet = m_outline.GetNormal(vtEcs);

	if (nRet != RTNORM)
	{
		return FALSE;
	}

	m_outline.Wcs2Ecs(vtEcs);
	nElev = m_outline[0]->z;
	m_outline.SetElevation(0.0);

	for (int i = 0; i < m_holes.Length(); i++) 
	{
		m_holes[i]->Wcs2Ecs(vtEcs);
		m_holes[i]->SetElevation(0.0);
	}
	
	return TRUE;
}

BOOL TGGeHoleModel::Triangulate(BOOL bKeepConstant, TDPtrList<TGGeTriangle> &lstTris, BOOL bAs3D)
{ //坐标系发生变化
	TVector3D vtEcs(0,0,1);
	double nElev = 0.0;
	if (bAs3D) 
	{
		if (!this->Wcs2Ecs(vtEcs, nElev))
		{
			return FALSE;
		}
	}

	BOOL bRet = TRUE;
	if (TchPrivate::Triangulate(m_outline, m_holes, lstTris)) 
	{
		for (int n = 0; n < lstTris.Length(); n++) 
		{
			TGGeTriangle *triangle = lstTris[n];
			triangle->vertex1.z = triangle->vertex2.z = triangle->vertex3.z = nElev;
			
			if (bAs3D)
			{
				triangle->Ecs2Wcs(vtEcs);
			}
		}
	}
	else 
	{
		bRet = FALSE;
	}
	
	if (bKeepConstant) 
	{
		m_outline.SetElevation(nElev);
		if (bAs3D)
		{
			m_outline.Ecs2Wcs(vtEcs);
		}
		
		for (int i = 0; i < m_holes.Length(); i++)  
		{
			m_holes[i]->SetElevation(nElev);
			if (bAs3D)
			{
				m_holes[i]->Ecs2Wcs(vtEcs);
			}
		}
	}
	
	return bRet;	
}