CAD

开发平台：
Visual C++

ELLIPS.cpp：源码内容
							// ELLIPS.cpp: implementation of the CELLIPS class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "CAD.h"
#include "ELLIPS.h"
#include "math.h"
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CELLIPS::CELLIPS()
{
}
CELLIPS::~CELLIPS()
{
}
void CELLIPS::ellips_drawAttribution(CDC*pDC)
{
	if(m_ellips_save.GetSize())
	{
		
		for(int i=0;i<m_ellips_save.GetSize();i++)
		{	
			CPoint topleft,bottomright;
			CPen pen;
			pen.CreatePen(((ellips_data*)(m_ellips_save.GetAt(i)))->m_line_style,
						 ((ellips_data*)(m_ellips_save.GetAt(i)))->m_line_width,
						 ((ellips_data*)(m_ellips_save.GetAt(i)))->m_line_color);
			pDC->SelectObject(&pen);
			topleft=CPoint(2*((ellips_data*)(m_ellips_save.GetAt(i)))->certrepoint.x-((ellips_data*)(m_ellips_save.GetAt(i)))->bottomright.x,
						   2*((ellips_data*)(m_ellips_save.GetAt(i)))->certrepoint.y-((ellips_data*)(m_ellips_save.GetAt(i)))->bottomright.y);
			bottomright=((ellips_data*)(m_ellips_save.GetAt(i)))->bottomright;
			pDC->Arc(CRect(topleft,bottomright),bottomright,bottomright);
			pen.DeleteObject();
		}
	}
}
void CELLIPS::ellips_drawMove(CPoint m_pointorg,CPoint m_pointfal,CDC *pDC,int m_line_style,int m_line_width,COLORREF m_line_color)
{
	CPoint topleft,bottomright;
	topleft=CPoint(2*m_pointorg.x-m_pointfal.x,2*m_pointorg.y-m_pointfal.y);
	bottomright=m_pointfal;
	
	CPen pen;
	pen.CreatePen(m_line_style,m_line_width,m_line_color);
	pDC->SelectObject(&pen);
	pDC->Arc(CRect(topleft,bottomright),bottomright,bottomright);
	pen.DeleteObject();//椭圆输出
	pen.CreatePen(PS_DOT,1,RGB(0,0,255));
	pDC->SelectObject(&pen);
	pDC->MoveTo(CPoint(m_pointorg.x,topleft.y));
	pDC->LineTo(CPoint(m_pointorg.x,bottomright.y));
	pDC->MoveTo(CPoint(topleft.x,m_pointorg.y));
	pDC->LineTo(CPoint(bottomright.x,m_pointorg.y));
	pen.DeleteObject();//辅助线输出
	CString str1,str2;
	float width,high;
	width=fabs(bottomright.x-topleft.x);
	high=fabs(bottomright.y-topleft.y);
	str1.Format("长轴:%f",width);
	str2.Format("短轴:%f",high);
	pDC->TextOut(bottomright.x+5,m_pointorg.y+5,str1,7);
	pDC->TextOut(m_pointorg.x+5,topleft.y-20,str2,7);//文本输出
	
}
void CELLIPS::ellips_store(CPoint m_pointorg,CPoint m_pointfal,int m_line_style,int m_line_width,COLORREF m_line_color)
{
	
	ellips_data *pellips_data=new ellips_data(m_pointorg,m_pointfal,m_line_style,m_line_width,m_line_color);
	m_ellips_save.Add(pellips_data);
}
void CELLIPS::ellips_catchcertre(CPoint point,CRgn *prgn,CDC *pDC)
{
	if(m_ellips_save.GetSize())
		for(int i=0;i<m_ellips_save.GetSize();i++)
		{
			if(prgn->PtInRegion(((ellips_data*)m_ellips_save.GetAt(i))->certrepoint))
				ellips_fillpoint(((ellips_data*)m_ellips_save.GetAt(i))->certrepoint,pDC);
		}
		
}
void CELLIPS::ellips_fillpoint(CPoint point,CDC *pDC)
{
	CBrush brush;
	brush.CreateSolidBrush( RGB(0,255,255));
	pDC->SelectObject(&brush);
	pDC->Rectangle(CRect(point.x-4,point.y-4,point.x+4,point.y+4));
	brush.DeleteObject();
	
}
void CELLIPS::ellips_searchcertre(CPoint point,CPoint *pnearpoint,CRgn *prgn)
{
	CPoint nearpoint;
	nearpoint=*pnearpoint;
	
	float nearrest;
	nearrest=sqrt(pow(point.x-nearpoint.x,2)+pow(point.y-nearpoint.y,2));
	
	if(m_ellips_save.GetSize())
		for(int i=0;i<m_ellips_save.GetSize();i++)
			if(prgn->PtInRegion(((ellips_data*)m_ellips_save.GetAt(i))->certrepoint))
			{				
				float length;
				length=sqrt(pow(((ellips_data*)m_ellips_save.GetAt(i))->certrepoint.x-point.x,2)+
					pow(((ellips_data*)m_ellips_save.GetAt(i))->certrepoint.y-point.y,2));
				if(length<nearrest)
					nearpoint=((ellips_data*)m_ellips_save.GetAt(i))->certrepoint;				
			}
			
			*pnearpoint=nearpoint;
}
bool CELLIPS::ellips_searchellips(CPoint point,int *pNum,int *pnStyle,CDC* pmdc)
{
	if(m_ellips_save.GetSize())
		for(int i=0;i<m_ellips_save.GetSize();i++)
		{
			CPoint topleft,bottomright;
			topleft=CPoint(2*((ellips_data*)(m_ellips_save.GetAt(i)))->certrepoint.x-((ellips_data*)(m_ellips_save.GetAt(i)))->bottomright.x,
						   2*((ellips_data*)(m_ellips_save.GetAt(i)))->certrepoint.y-((ellips_data*)(m_ellips_save.GetAt(i)))->bottomright.y);	
			bottomright=((ellips_data*)(m_ellips_save.GetAt(i)))->bottomright;
			CRgn rgnin,rgnout;
			rgnin.CreateEllipticRgnIndirect(CRect(topleft+CSize(4,4),bottomright-CSize(4,4)));
			rgnout.CreateEllipticRgnIndirect(CRect(topleft-CSize(4,4),bottomright+CSize(4,4)));
			if(rgnout.PtInRegion(point)&&!rgnin.PtInRegion(point))
			{
				ellips_fillpoint(((ellips_data*)(m_ellips_save.GetAt(i)))->certrepoint,pmdc);
				*pNum=i;
				*pnStyle=5;
				return(true);
			}
		}
  return(false);
}
bool CELLIPS::ellips_editselect(CPoint point,CPoint *ppointorg,int Num)
{	
	CPoint certrepoint;
	certrepoint=((ellips_data*)(m_ellips_save.GetAt(Num)))->certrepoint;
	CRgn rgn;
	rgn.CreateRectRgn(certrepoint.x-10,certrepoint.y-10,certrepoint.x+10,certrepoint.y+10);
	if(rgn.PtInRegion(point))
	{
		*ppointorg=certrepoint;
		return(true);
	}
	else
		return(false);
}
void CELLIPS::ellips_editmove(CPoint pointorg,CPoint pointfal,int Num,CDC *pDC)
{
	CSize pointmove;
	pointmove=pointfal-pointorg;
	CPoint topleft,bottomright;
	topleft=CPoint(2*((ellips_data*)(m_ellips_save.GetAt(Num)))->certrepoint.x-((ellips_data*)(m_ellips_save.GetAt(Num)))->bottomright.x,
					2*((ellips_data*)(m_ellips_save.GetAt(Num)))->certrepoint.y-((ellips_data*)(m_ellips_save.GetAt(Num)))->bottomright.y)+pointmove;	
	bottomright=((ellips_data*)(m_ellips_save.GetAt(Num)))->bottomright+pointmove;
	
	CPen pen;
	pen.CreatePen(PS_SOLID,1,RGB(0,0,255));
	pDC->SelectObject(&pen);
	pDC->Arc(CRect(topleft,bottomright),bottomright,bottomright);
	pen.DeleteObject();
}
void CELLIPS::ellips_editmovestore(CPoint pointorg,CPoint pointfal,int Num)
{
	CSize pointmove;
	pointmove=pointfal-pointorg;
	((ellips_data*)(m_ellips_save.GetAt(Num)))->bottomright+=pointmove;
	((ellips_data*)(m_ellips_save.GetAt(Num)))->certrepoint+=pointmove;
	
}
void CELLIPS::ellips_del(int Num)
{
	ellips_data *pdel=(ellips_data*)m_ellips_save.GetAt(Num);
	if(pdel!=NULL)
	{
		m_ellips_save.RemoveAt(Num);
		delete pdel;
	}
	
}
///////////////////////////////
CELLIPS::ellips_data::ellips_data(CPoint certrepoint,CPoint bottomright,int m_line_style,int m_line_width,COLORREF m_line_color)
{
	this->certrepoint=certrepoint;
	this->bottomright=bottomright;
	this->m_line_style=m_line_style;
	this->m_line_width=m_line_width;
	this->m_line_color=m_line_color;
}
CELLIPS::ellips_data::~ellips_data()
{
}

						