www.pudn.com > DrawVector.rar > LinkNet.cpp

// LinkNet.cpp: implementation of the CLinkNet class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#include "stdafx.h" 
#include "Draw.h" 
#include "LinkNet.h" 
#include "math.h" 
#define pi 3.1415926 
#include "DrawDoc.h" 
 
#ifdef _DEBUG 
#undef THIS_FILE 
static char THIS_FILE[]=__FILE__; 
#define new DEBUG_NEW 
#endif 
 
////////////////////////////////////////////////////////////////////// 
// Construction/Destruction 
////////////////////////////////////////////////////////////////////// 
 
//CLinkNet::CLinkNet() 
extern IsRectCross(float minx,float miny,float maxx,float maxy); 
 
CLinkNet::~CLinkNet() 
{ 
 
} 
float CLinkNet::CalDisp(float x1,float y1,float x2,float y2) 
{ 
	return (float)sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)); 
} 
void CLinkNet::Draw(CDC* pDC,int m_DrawMode,int m_DrawModel,short BackColor) 
{ 
	if(this->b_Delete) 
	{ 
		return ; 
	} 
	float minx,miny,maxx,maxy; 
	GetRect(&minx,&miny,&maxx,&maxy);//得到边界矩形 
	if(!IsRectCross(minx,miny,maxx,maxy))//如果边界矩形不与屏幕窗口相交 
		return; 
	if(m_DrawMode==0) 
		pDC->SetROP2(R2_COPYPEN); 
	else if(m_DrawMode==1) 
		pDC->SetROP2(R2_NOT); 
	short ColorPen=m_ColorPen; 
    if(m_DrawModel==2) 
		ColorPen=BackColor; 
	CGraphPara m_GraphPara; 
    CGraphPara *p_GraphPara; 
	p_GraphPara=&m_GraphPara; 
    CPen pen(0,1,p_GraphPara->GetColor(ColorPen)); 
	CPen* pOldPen=pDC->SelectObject(&pen); 
	int x1,y1,x2,y2,x3,y3; 
	DPtoVP(m_x,m_y,&x1,&y1); 
	int rr=DLtoVL(m_rRadiu); 
	pDC->SelectStockObject(NULL_BRUSH); 
	pDC->Ellipse(x1-rr,y1-rr,x1+rr,y1+rr); 
	BOOL bDelete; 
	float xx,yy; 
	if(m_DrawModel==0) 
	{ 
		for(int i=0;im_LinkNumb;i++) 
		{ 
			CDrawDoc* p_Doc; 
			BOOL pb=p_Doc->GetNetXy(this->m_LinkID[i],&xx,&yy,&bDelete); 
			if(!pb||b_Delete) 
				continue; 
			float angle=p_Doc->GetAngle(xx,yy,m_x,m_y); 
			DPtoVP(xx,yy,&x2,&y2); 
			pDC->MoveTo(x1,y1); 
			pDC->LineTo(x2,y2); 
			x2=(int)(x2*0.75+x1*0.25); 
			y2=(int)(y2*0.75+y1*0.25); 
			pDC->MoveTo(x2,y2); 
			x3=x2+(int)(10*cos(angle+pi/6)); 
			y3=y2-(int)(10*sin(angle+pi/6)); 
			pDC->LineTo(x3,y3); 
			pDC->MoveTo(x2,y2); 
			x3=x2+(int)(10*cos(angle-pi/6)); 
			y3=y2-(int)(10*sin(angle-pi/6)); 
			pDC->LineTo(x3,y3); 
		} 
	} 
	pDC->SelectObject(pOldPen); 
} 
void CLinkNet::AddLink(int nID) 
{ 
	for(int i=0;im_LinkID[i]) 
		return; 
	} 
	m_LinkID[m_LinkNumb++]=nID; 
} 
void CLinkNet::GetRect(float* minX,float* minY,float* maxX,float* maxY) 
{ 
	*minX=m_x-m_rRadiu; 
	*minY=m_y-m_rRadiu; 
	*maxX=m_x+m_rRadiu; 
	*maxY=m_y+m_rRadiu; 
//	return TRUE; 
} 
 
BOOL CLinkNet::IsPoint(float x,float y,float j1,float blc) 
{ 
	float jl1; 
	if(b_Delete) 
		return FALSE; 
	jl1=CalDisp(x,y,j1,blc); 
	if(jl1m_x+=x_Move; 
	this->m_y+=y_Move; 
} 
void CLinkNet::Rotate(float baseX,float baseY,float angle) 
{ 
	RotatePoint(baseX,baseY,angle,&m_x,&m_y); 
}