draw4view.cpp

计算机图形学

// Draw4View.cpp : CDraw4View 类的实现
//

#include "stdafx.h"
#include "Draw4.h"
#include <cmath>

#include "Draw4Doc.h"
#include "Draw4View.h"
#include ".\draw4view.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif
	struct Span
	{int y,xLeft,xRight;
	} span;



// CDraw4View

IMPLEMENT_DYNCREATE(CDraw4View, CView)

BEGIN_MESSAGE_MAP(CDraw4View, CView)
	// 标准打印命令
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

// CDraw4View 构造/析构

CDraw4View::CDraw4View()
{
	// TODO: 在此处添加构造代码

}

CDraw4View::~CDraw4View()
{
}

BOOL CDraw4View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: 在此处通过修改 CREATESTRUCT cs 来修改窗口类或
	// 样式

	return CView::PreCreateWindow(cs);
}

// CDraw4View 绘制

void CDraw4View::OnDraw(CDC* pDC)
{
// TODO: 在此处为本机数据添加绘制代码
	Draw01(100, 110);//上头
	Draw02(10, 10);//左眼
	Draw02(3, 3);
	Draw03(10, 10);//右眼
	Draw03(3, 3);
	Draw04(100,85);//额
	Draw05(12, 12);//鼻子
	Draw06(100,70);//下巴
    Draw14(100,70);//脖子
	Draw08(10, 10);//左耳
	Draw09(20, 20);//左耳
	Draw10(10, 10);//右耳
	Draw11(20, 20);//右耳
	Draw12(30, 30);//嘴
	Draw13(350, 385, 260, 400);//右身
	Draw13(250, 215, 260, 400);//左身
	Draw13(215, 385, 400, 400);//下身

	Draw13(200, 145, 185, 255);//左发
	Draw13(140, 158, 240, 240);
  	Draw13(158, 158, 240, 260);

	Draw13(400, 455, 185, 255);//右发
	Draw13(443, 461, 240, 240);
  	Draw13(443, 443, 240, 258);

	DisplaySquareBezier(7,21,14,14,28,28,28,42,50);
	DisplaySquareBezier(7,21,0,28,14,42,28,42,50);    //花
    Draw13(270,270-40,70,120);//发
    Draw13(330,330+40,70,120);
    Draw13(200,400,50,50);

	Draw13(270+20, 250+20, 400, 440);//左脚
	Draw13(240+20, 220+20, 400, 450);
	Draw13(220+20, 250+20, 450, 462);
	DisplaySquareBezier2(250,440,280,450,270,460,50);

	Draw13(330-20, 350-20, 400, 465);//右脚
	Draw13(360-20, 370-20, 400, 430);
	Draw13(350-20, 385-20, 465, 445);
	DisplaySquareBezier3(370,430,410,428,388,450,100);

    LineDDA2(350-20,265+5,438-20,285+5);//右手
	DisplaySquareBezier4(100-15,100+195,150-15,120+195,180-15,120+195,180-15,100+195,50);

	 DisplaySquareBezier4(40-60,14+260,10-60,20+260,20-60,37+260,40-60,37+260,50); //左手
	 DisplaySquareBezier4(40-60,37+260,80-60,34+260,110-60,30+260,110-60,17+260,50);
	 DisplaySquareBezier4(40-60,20+260,60-60,8+260,110-60,8+260,110-60,17+260,50); 

//******************裁剪******************//
    int inLength=4,i=0;
	VertexArray inVertexArray;
	VertexArray outVertexArray;
	int * outLength;
	outLength=(int *)malloc(sizeof(int));
	Edge clipBoundary;
	//输入要被裁剪的主窗口
    inVertexArray[0].x=72;
    inVertexArray[0].y=60;
    inVertexArray[1].x=187;
	inVertexArray[1].y=99;
	inVertexArray[2].x=148;
	inVertexArray[2].y=60;
	inVertexArray[3].x=187;
	inVertexArray[3].y=21;

	clipBoundary[0].x=100;
	clipBoundary[0].y=80;
	clipBoundary[1].x=100;
	clipBoundary[1].y=40;
    SutherlandHodgmanEllipseClip(inLength,inVertexArray, outLength, outVertexArray,clipBoundary);
    //下边裁剪
	clipBoundary[0].x=158;
	clipBoundary[0].y=80;
	clipBoundary[1].x=100;
	clipBoundary[1].y=80;
	inLength=*outLength;
    SutherlandHodgmanEllipseClip(inLength,outVertexArray, outLength, inVertexArray,clipBoundary);
    //右边裁剪
	clipBoundary[0].x=158;
	clipBoundary[0].y=40;
	clipBoundary[1].x=158;
	clipBoundary[1].y=80;
	inLength=*outLength;
    SutherlandHodgmanEllipseClip(inLength, inVertexArray, outLength,outVertexArray,clipBoundary);
    //上边裁剪
	clipBoundary[0].x=100;
	clipBoundary[0].y=40;
	clipBoundary[1].x=158;
	clipBoundary[1].y=40;
	inLength=*outLength;
    SutherlandHodgmanEllipseClip(inLength, outVertexArray, outLength,inVertexArray,clipBoundary);

    for(i=0;i<*outLength;i++)
	{
		if(i<*outLength-1)
		{
			Draw13(inVertexArray[i].x+200,inVertexArray[i+1].x+200,inVertexArray[i].y-10,inVertexArray[i+1].y-10);
            Draw13(200-inVertexArray[i].x+200,200-inVertexArray[i+1].x+200,inVertexArray[i].y-10,inVertexArray[i+1].y-10);
		
		}
		if(i==*outLength-1)
		{
			Draw13(inVertexArray[i].x+200,inVertexArray[0].x+200,inVertexArray[i].y-10,inVertexArray[0].y-10);
	        Draw13(200-inVertexArray[i].x+200,200-inVertexArray[0].x+200,inVertexArray[i].y-10,inVertexArray[0].y-10);
		}
	}
//***********填充**************************************//
	int oldColor;
    CPoint point;
	pDC=GetDC();
	point.x=300;point.y=300;
	oldColor=pDC->GetPixel(point);

	Fill(point,oldColor,RGB(0, 220, 100));//身 

	point.x=280;point.y=420;
	Fill(point,oldColor,RGB(0, 255, 255));//左脚

	point.x=320;point.y=420;
	Fill(point,oldColor,RGB(0, 255, 255));//右脚

	point.x=212;point.y=112;
	Fill(point,oldColor,RGB(150, 0, 100));//左耳
	point.x=225;point.y=127;
	Fill(point,oldColor,RGB(100, 0, 100));

	point.x=388;point.y=112;
	Fill(point,oldColor,RGB(150, 0, 100));//右耳
	point.x=400;point.y=127;
	Fill(point,oldColor,RGB(100, 0, 100));

    point.x=250;point.y=180;//左眼珠
	Fill(point,oldColor,RGB(0, 0, 0));

    point.x=350;point.y=180;//右眼珠
	Fill(point,oldColor,RGB(0, 0, 0));

	point.x=300;point.y=100;//上头
	Fill(point,oldColor,RGB(150, 0, 100));
	
	point.x=400;point.y=300;  //右手
	Fill(point,oldColor,RGB(0, 100, 200));

	point.x=280;point.y=280;  //左手
	Fill(point,oldColor,RGB(0, 100, 200));
	point.x=280;point.y=270;
	Fill(point,oldColor,RGB(0, 100, 200));
	point.x=280;point.y=268;
	Fill(point,oldColor,RGB(0, 100, 200));
	point.x=240;point.y=280;
	Fill(point,oldColor,RGB(0, 100, 200));

	point.x=254;point.y=270;//脖子
	Fill(point,oldColor,RGB(150, 0, 100));
	point.x=350;point.y=270;
	Fill(point,oldColor,RGB(150, 0, 100));

	point.x=300;point.y=80;//头发
	Fill(point,oldColor,RGB(0, 0, 0));

	point.x=310;point.y=55;//发叉
	Fill(point,oldColor,RGB(255, 0, 0));
	point.x=310;point.y=45;
	Fill(point,oldColor,RGB(255, 0, 0));
	point.x=290;point.y=45;
	Fill(point,oldColor,RGB(255, 0, 0));
	point.x=290;point.y=55;
	Fill(point,oldColor,RGB(255, 0, 0));

	point.x=390;point.y=45;
	Fill(point,oldColor,RGB(255, 0, 255));
	point.x=390;point.y=55;
	Fill(point,oldColor,RGB(255, 0, 255));
	point.x=410;point.y=45;
	Fill(point,oldColor,RGB(255, 0, 255));
	point.x=410;point.y=55;
	Fill(point,oldColor,RGB(255, 0, 255));

//********************字符显示*******************//
  char ming24S[]={
/* 以下是 '明' 的 24点阵宋体 字模，72 byte */
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x08,0x00,0x07,0xF8,0x1F,0xC4,0x18,0x10,
  0x44,0x18,0x10,0x44,0x18,0x10,0x44,0x18,
  0x10,0x44,0x18,0x1F,0xC7,0xF8,0x10,0x44,
  0x18,0x10,0x44,0x18,0x10,0x44,0x18,0x10,
  0x44,0x18,0x10,0x4F,0xF8,0x1F,0xCC,0x18,
  0x10,0x48,0x18,0x10,0x08,0x18,0x00,0x18,
  0x18,0x00,0x10,0x18,0x00,0x20,0x18,0x00,
  0x40,0xF0,0x01,0x80,0x30,0x00,0x00,0x00,
};
     char zhong32L[]={
/* 以下是 '中' 的 32点阵隶书 字模，128 byte */
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x03,0x00,0x00,0x00,0x03,0x80,0x00,
  0x00,0x03,0x80,0x00,0x00,0x03,0x80,0x00,
  0x0F,0x3B,0xF0,0xE0,0x0F,0xFF,0xFF,0xF0,
  0x0C,0x03,0x80,0x60,0x0C,0x03,0x80,0x60,
  0x0C,0x03,0x80,0x60,0x0C,0x03,0x80,0x60,
  0x07,0xFF,0xFF,0xE0,0x06,0x03,0x81,0xE0,
  0x00,0x03,0x80,0x00,0x00,0x03,0x80,0x00,
  0x00,0x03,0x80,0x00,0x00,0x03,0x80,0x00,
  0x00,0x03,0x80,0x00,0x00,0x03,0x80,0x00,
  0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
     char nan32L[]={
/* 以下是 '南' 的 32点阵隶书 字模，128 byte */
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x03,0x00,0x00,0x00,0x03,0x80,0x00,
  0x00,0x03,0x80,0x00,0x1F,0xFF,0xFF,0x00,
  0x3C,0x03,0x83,0xFC,0x00,0x03,0x80,0x38,
  0x00,0x03,0x80,0x00,0x01,0xFF,0xFF,0x80,
  0x01,0x08,0x01,0x80,0x01,0x08,0x41,0x80,
  0x01,0x1F,0xF1,0x80,0x01,0x03,0x01,0x80,
  0x01,0x03,0x01,0x80,0x01,0x3F,0xF1,0x80,
  0x01,0x03,0x01,0x80,0x03,0x03,0x01,0x80,
  0x06,0x03,0x01,0x80,0x0E,0x03,0x01,0x80,
  0x18,0x01,0x01,0x80,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
     char da32L[]={
/* 以下是 '大' 的 32点阵隶书 字模，128 byte */
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x01,0x00,0x00,0x00,0x03,0x80,0x00,
  0x00,0x03,0x80,0x00,0x00,0x03,0x80,0x00,
  0x00,0x03,0x80,0x00,0x01,0x03,0x80,0x00,
  0x03,0xFF,0xFF,0xC0,0x00,0x03,0x80,0x00,
  0x00,0x03,0x80,0x00,0x00,0x02,0x40,0x00,
  0x00,0x06,0x30,0x00,0x00,0x04,0x18,0x00,
  0x00,0x0C,0x0C,0x00,0x00,0x38,0x07,0x00,
  0x00,0xF0,0x07,0xC0,0x0F,0xE0,0x03,0xF8,
  0x1F,0xC0,0x01,0xFC,0x0E,0x00,0x00,0x78,
  0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};
     char xue32L[]={
/* 以下是 '学' 的 32点阵隶书 字模，128 byte */
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x03,0x06,0x00,0x00,0x83,0x06,0x00,
  0x00,0xC1,0x04,0x00,0x00,0x40,0x08,0x00,
  0x00,0x00,0x08,0x20,0x0F,0xFF,0xFF,0xF0,
  0x0C,0x00,0x00,0x30,0x0C,0x01,0x00,0x30,
  0x08,0x18,0x38,0x20,0x00,0x20,0x3C,0x00,
  0x00,0x01,0x40,0x00,0x00,0x00,0xC0,0x00,
  0x10,0x00,0xC0,0x00,0x3F,0xFF,0xFF,0xFC,
  0x30,0x00,0xE0,0x3C,0x00,0x00,0xE0,0x00,
  0x00,0x00,0xE0,0x00,0x00,0x01,0xC0,0x00,
  0x00,0x3F,0x80,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};

	 drawmat(ming24S,24,274,320,100);
	 drawmat(ming24S,24,306,320,100);
	 drawmat(zhong32L,32,245-2,345,0);  //汉字输入
	 drawmat(nan32L,32,275-2,345,0);
	 drawmat(da32L,32,305-2,345,0);
	 drawmat(xue32L,32,335-2,345,0);





}


// CDraw4View 打印

BOOL CDraw4View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// 默认准备
	return DoPreparePrinting(pInfo);
}

void CDraw4View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 打印前添加额外的初始化
}

void CDraw4View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 打印后添加清除过程
}


// CDraw4View 诊断

#ifdef _DEBUG
void CDraw4View::AssertValid() const
{
	CView::AssertValid();
}

void CDraw4View::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CDraw4Doc* CDraw4View::GetDocument() const // 非调试版本是内联的
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CDraw4Doc)));
	return (CDraw4Doc*)m_pDocument;
}
#endif //_DEBUG


// CDraw4View 消息处理程序

void CDraw4View::Draw01(int a, int b)
{
	int x,y,d,xP,yP,sa,sb,color = 0;
	int x0 = 300,y0 = 200;
	CDC* pDC = GetDC();

	sa = a*a;sb = b*b;
	xP = (int)(0.5 + (float)sa/sqrt((float)(sa + sb)));
	yP = (int)(0.5 + (float)sb/sqrt((float)(sa + sb)));
	x = 0;
	y = b;
	d = 4*(sb - sa*b) + sa;

	//pDC->SetPixel(x + x0,y + y0,color);
	//pDC->SetPixel(-x + x0,y + y0,color);
	pDC->SetPixel(-x + x0,-y + y0,color);
	pDC->SetPixel(x + x0,-y + y0,color);

	while(x <= xP)
	{
		if(d <= 0)
			d += 4*sb*(2*x + 3);
		else
		{
			d += 4*sb*(2*x + 3) - 8*sa*(y - 1);
			y --;
		}
		x ++;

	    //pDC->SetPixel(x + x0,y + y0,color);
	    //pDC->SetPixel(-x + x0,y + y0,color);
	    pDC->SetPixel(-x + x0,-y + y0,color);
	    pDC->SetPixel(x + x0,-y + y0,color);

	}
	x = a;
	y = 0;
	d = 4*(sa - sb*a) + sb;

	//pDC->SetPixel(x + x0,y + y0,color);
	//pDC->SetPixel(-x + x0,y + y0,color);
	pDC->SetPixel(-x + x0,-y + y0,color);
	pDC->SetPixel(x + x0,-y + y0,color);

	while(y <= yP)
	{
		if(d <= 0)
			d += 4*sa*(2*y + 3);
		else
		{
			d += 4*sa*(2*y + 3) - 8*sb*(x - 1);
			x --;
		}
		y ++;

	    //pDC->SetPixel(x + x0,y + y0,color);
	    //pDC->SetPixel(-x + x0,y + y0,color);
	    pDC->SetPixel(-x + x0,-y + y0,color);
	    pDC->SetPixel(x + x0,-y + y0,color);

	}

}

void CDraw4View::Draw02(int a, int b)
{
	int x,y,d,xP,yP,sa,sb,color = 0;
	int x0 = 250,y0 = 180;
	CDC* pDC = GetDC();

	sa = a*a;sb = b*b;
	xP = (int)(0.5 + (float)sa/sqrt((float)(sa + sb)));
	yP = (int)(0.5 + (float)sb/sqrt((float)(sa + sb)));
	x = 0;
	y = b;
	d = 4*(sb - sa*b) + sa;

	pDC->SetPixel(x + x0,y + y0,color);
	pDC->SetPixel(-x + x0,y + y0,color);
	pDC->SetPixel(-x + x0,-y + y0,color);
	pDC->SetPixel(x + x0,-y + y0,color);

	while(x <= xP)
	{
		if(d <= 0)
			d += 4*sb*(2*x + 3);
		else
		{
			d += 4*sb*(2*x + 3) - 8*sa*(y - 1);
			y --;
		}
		x ++;

	    pDC->SetPixel(x + x0,y + y0,color);
	    pDC->SetPixel(-x + x0,y + y0,color);
	    pDC->SetPixel(-x + x0,-y + y0,color);
	    pDC->SetPixel(x + x0,-y + y0,color);

	}
	x = a;
	y = 0;
	d = 4*(sa - sb*a) + sb;

	pDC->SetPixel(x + x0,y + y0,color);
	pDC->SetPixel(-x + x0,y + y0,color);
	pDC->SetPixel(-x + x0,-y + y0,color);
	pDC->SetPixel(x + x0,-y + y0,color);

	while(y <= yP)
	{
		if(d <= 0)
			d += 4*sa*(2*y + 3);
		else
		{
			d += 4*sa*(2*y + 3) - 8*sb*(x - 1);
			x --;
		}
		y ++;

	    pDC->SetPixel(x + x0,y + y0,color);
	    pDC->SetPixel(-x + x0,y + y0,color);
	    pDC->SetPixel(-x + x0,-y + y0,color);
	    pDC->SetPixel(x + x0,-y + y0,color);

	}

}

void CDraw4View::Draw03(int a, int b)
{
	int x,y,d,xP,yP,sa,sb,color = 0;
	int x0 = 350,y0 = 180;
	CDC* pDC = GetDC();

	sa = a*a;sb = b*b;
	xP = (int)(0.5 + (float)sa/sqrt((float)(sa + sb)));
	yP = (int)(0.5 + (float)sb/sqrt((float)(sa + sb)));
	x = 0;
	y = b;
	d = 4*(sb - sa*b) + sa;

	pDC->SetPixel(x + x0,y + y0,color);
	pDC->SetPixel(-x + x0,y + y0,color);
	pDC->SetPixel(-x + x0,-y + y0,color);
	pDC->SetPixel(x + x0,-y + y0,color);

	while(x <= xP)
	{
		if(d <= 0)
			d += 4*sb*(2*x + 3);
		else
		{
			d += 4*sb*(2*x + 3) - 8*sa*(y - 1);
			y --;
		}
		x ++;

	    pDC->SetPixel(x + x0,y + y0,color);
	    pDC->SetPixel(-x + x0,y + y0,color);
	    pDC->SetPixel(-x + x0,-y + y0,color);
	    pDC->SetPixel(x + x0,-y + y0,color);

	}
	x = a;
	y = 0;
	d = 4*(sa - sb*a) + sb;

	pDC->SetPixel(x + x0,y + y0,color);
	pDC->SetPixel(-x + x0,y + y0,color);
	pDC->SetPixel(-x + x0,-y + y0,color);
	pDC->SetPixel(x + x0,-y + y0,color);

	while(y <= yP)
	{
		if(d <= 0)
			d += 4*sa*(2*y + 3);
		else
		{
			d += 4*sa*(2*y + 3) - 8*sb*(x - 1);