计算机图形学实验报告C#窗口版（内含VS源文件）

本人河南某本科高校测绘学子，当时也是耗费大量时间做成，为了给各位学弟学妹提供参考（鬼笑），特此上传，为了不泄露个人隐私，选择此方式上传，实属无奈！若还需要VS源程序文件，请联系本人，低价有偿私人单发。 程序为C#窗口版，具体窗口界面见附件窗口图片， 主窗口程序： public partial class Form1 : Form { //Bitmap bitmap; public Form1() { InitializeComponent(); } Color BackColor1 = Color.White; Color ForeColor1 = Color.Black; public int MenuID, pressNum, FirstX, FirstY, OldX, OldY,SecondX,SecondY; private void DDALine_Click(object sender, EventArgs e) { MenuID = 1; pressNum = 0; Graphics g = CreateGraphics();//创建图形设备 g.Clear(BackColor1);//设置背景色 } private void Form1_MouseClick(object sender, MouseEventArgs e) { Graphics g = CreateGraphics(); Pen Mypen = new Pen(Color.Red, 1); if (MenuID ==1||MenuID ==2||MenuID ==3) { if (pressNum ==0) { FirstX = e.X;FirstY = e.Y; OldX = e.X; OldY = e.Y; } else { if (MenuID ==1) DDALine1(FirstX, FirstY, e.X, e.Y); if (MenuID == 2) MidLine1(FirstX, FirstY, e.X, e.Y); if(MenuID ==3) BresenhamLine1(FirstX, FirstY, e.X, e.Y); } pressNum++; if (pressNum >= 2) pressNum = 0; } if (MenuID == 4 || MenuID == 5) //画圆部分 { if (pressNum == 0) //圆心保留 { FirstX = e.X; FirstY = e.Y; } else { if (FirstX == e.X && FirstY == e.Y)//半径为零就不画了 return; if (MenuID == 4) MidCircle1(FirstX, FirstY, e.X, e.Y); if (MenuID == 5) BresenhamCircle1(FirstX, FirstY, e.X, e.Y); } pressNum++; if (pressNum >= 2) pressNum = 0;//画圆完毕，清零，为画下一圆做准备 } if (MenuID==6)//椭圆部分 { if (pressNum == 0) //圆心保留 { FirstX = e.X; FirstY = e.Y; OldX = e.X; OldY = e.Y; } if(pressNum==1) { SecondX = e.X;SecondY = e.Y; } if (pressNum==2) { if (FirstX == e.X && FirstY == e.Y) return; if (SecondX == e.X && SecondY == e.Y) return; MidEllipse1(FirstX, FirstY, SecondX, SecondY, e.X, e.Y); } pressNum++; if (pressNum >= 3) pressNum = 0;//画椭圆完毕，清零，为画下一椭圆做准备 } if (MenuID == 7)//扫描线填充 { if (e.Button == MouseButtons.Left)//如果按左键，存顶点 { group[pressNum].X = e.X; group[pressNum].Y = e.Y; if (pressNum > 0)//依次画多边形边 { g.DrawLine(Pens.Red, group[pressNum - 1], group[pressNum]); } pressNum++;//这里，pressNum记录了多边形顶点数 SecondX = group[1].X; SecondY = group[1].Y; } if (e.Button == MouseButtons.Right)//如果按右键，结束顶点采集，开始填充 { g.DrawLine(Pens.Red, group[pressNum - 1], group[0]); ScanLineFill1();//调用填充算法，开始填充 pressNum = 0;//清零，为绘制下一个图形做准备 } } if (MenuID ==8)//四连通区域填充 { if (e.Button == MouseButtons.Left)//如果按左键，存顶点 { group[pressNum].X = e.X; group[pressNum].Y = e.Y; if (pressNum > 1)//依次画多边形边 { g.DrawLine(Pens.Red, group[pressNum - 1], group[pressNum]); } pressNum++;//这里，pressNum记录了多边形顶点数 SecondX = group [1].X; SecondY = group[1].Y; } if (e.Button ==MouseButtons.Right)//如果按右键，结束顶点采集，开始填充 { g.DrawLine(Pens.Red, group[pressNum - 1], group[1]); //Graphics graphics; //graphics = CreateGraphics(); //bitmap = new Bitmap(700, 500); //bitmap.SetPixel(group[0].X, group[0].Y, Color.Blue); //Point seed = new Point(group[0].X, group[0].Y); //bitmap.SetPixel(SecondX, SecondY, Color.Red); //bitmap.SetPixel(40, 40, Color.Yellow); ////开始填充 //////Seedfill(bitmap.GetPixel(SecondX, SecondY), seed, bitmap.GetPixel(40, 40), bitmap); ////graphics.DrawImage(bitmap, 0, 0, bitmap.Width, bitmap.Height); pressNum = 0;//清零，为绘制下一个图形做准备 } } if (MenuID == 17)//窗口多边形裁剪 { if (e.Button == MouseButtons.Left)//如果按左键，存顶点 { group[pressNum].X = e.X; group[pressNum].Y = e.Y; if (pressNum > 0) { g.DrawLine(Pens.Red, group[pressNum - 1], group[pressNum]); } pressNum++; } if (e.Button == MouseButtons.Right)//如果按右键，结束顶点采集 { g.DrawLine(Pens.Red, group[pressNum - 1], group[0]); WindowCut1(); pressNum = 0;//清零，为绘制下一个图形做准备 } } if (MenuID ==9||MenuID ==10||MenuID ==11) { if (pressNum ==0) { FirstX = e.X;FirstY = e.Y;pressNum++; } else { if (MenuID == 9) CohenCut1(FirstX, FirstY, e.X, e.Y); if (MenuID == 10) MidCut1(FirstX, FirstY, e.X, e.Y); if (MenuID == 11) LiangCut1(FirstX, FirstY, e.X, e.Y); pressNum = 0; } } if (MenuID ==12) { if(pressNum ==0) { FirstX = e.X;FirstY = e.Y; } else { for (int i=0;i<4;i++) { pointsgroup[i].X += e.X - FirstX; pointsgroup[i].Y += e.Y- FirstY; } g.DrawPolygon(Pens.Blue, pointsgroup); }