C#课设报告.docx

1、C#课设报告一、设计目的：面向对象程序设计课程设计是面向对象程序设计课程的实践环节。通过课程设计实践，使学生进一步加深理解和掌握面向对象的基本概念、面向对象程序开发的基本思路和方法、windows Form设计原则和方法以及它们在软件开发过程中的使用方法，达到提高学生C#语言编程和调试动手能力，培养学生使用面向对象程序设计、数据结构、数据库原理和软件工程等相关课程知识解决实际问题的能力的目的。二、设计内容：(1) 根据课题要求设计数据结构和Windows UI界面，并且编写完成了程序；(2) 画图程序具有的功能：在菜单栏中，“文件”的下拉菜单能实现打开、保存、打印、退出等功能；“编辑”下拉菜单

2、能实现移动、删除等功能；“绘制”下拉菜单能实现绘制点、直线、矩形、多边形、圆形、圆弧、椭圆等功能；“颜色”下拉菜单能实现编辑颜色的功能；“帮助”实现帮助主题功能。在工具栏中设计了相关的绘制图形的按钮快捷方式，方便用户操作；同时还增添了实现了调整线条宽度的功能。状态栏显示鼠标当前位置。三、所设计应用系统运行所需要的软件、硬件环境：Visual studio 2005环境 四、关键功能算法和函数流程图：1) 绘制点的相关算法： Serializable () public class Point : IGraphics /点类 bool bedraw = false; PointF PoiP =

3、new PointF(); /用于记录点的位置 Color penColor; /画笔颜色 float penWdith; /画笔宽度 public void MouseDown(object sender, MouseEventArgs e) this.bedraw = true; this.PoiP = e.Location; /记录要绘制点的位置 public void MouseMove(object sender, MouseEventArgs e) this.bedraw = true; public void MouseUp(object sender,MouseEventArg

4、s e) this.bedraw = false; public void dpen(Color color, float width) /为画笔属性赋值 this.penColor = color; this.penWdith = width; public void Draw(Graphics g) /绘制点 Brush brush = new SolidBrush(this.penColor); g.FillEllipse(brush, this.PoiP.X - 4, this.PoiP.Y - 4, 8, 8); /绘制点 public bool Judge(MouseEventAr

5、gs e) return false; public void Circum(bool judge) MessageBox.Show(不能计算周长！, 警告, MessageBoxButtons.OK); public void Area(bool judge) MessageBox.Show(不能计算面积！, 警告, MessageBoxButtons.OK); 2) 绘制直线的算法： Serializable() public class Line : IGraphics /直线类 bool bedraw = false; /标记是否开始和停止绘制 PointF LinP1 = new P

6、ointF(); PointF LinP2 = new PointF(); /记录线段的起点和终点 Color penColor; /画笔颜色 float penWdith; /画笔宽度 public void MouseDown(object sender, MouseEventArgs e) this.bedraw = true; this.LinP1 = e.Location; public void MouseMove(object sender, MouseEventArgs e) if (this.bedraw) this.LinP2 = e.Location; public vo

7、id MouseUp(object sender, MouseEventArgs e) this.LinP2 = e.Location; this.bedraw = false; public void dpen(Color color, float width) /为画笔属性赋值 this.penColor = color; this.penWdith = width; public void Draw(Graphics g) Pen pen = new Pen(this.penColor, this.penWdith); g.DrawLine(pen, this.LinP1, this.L

8、inP2); /绘制直线 public bool Judge(MouseEventArgs e) /判断点是否在线段上或在其延长线上 if (Math.Abs(e.X - this.LinP1.X) / (this.LinP2.X - this.LinP1.X) = Math.Abs(e.Y - this.LinP1.Y) / (this.LinP2.Y - this.LinP1.Y) return true; else return false; public void Circum(bool judge) float SegCir = (float )Math.Sqrt(this.LinP

9、1.X - this.LinP2.X) * (this.LinP1.X - this.LinP2.X) + (this.LinP1.Y - this.LinP2.Y) * (this.LinP1.Y - this.LinP2.Y); MessageBox.Show(线段长度为: + SegCir, 消息, MessageBoxButtons.OK); public void Area(bool judge) MessageBox.Show(不能计算面积！, 警告, MessageBoxButtons.OK); 3) 绘制矩形的算法： Serializable() public class Re

10、ctangle : IGraphics /矩形类 bool bedraw = false; PointF RecP1 = new PointF(); PointF RecP2 = new PointF(); /记录矩形的两个顶点 Color penColor; /画笔颜色 float penWdith; /画笔宽度 public void MouseDown(object sender, MouseEventArgs e) this.bedraw = true; this.RecP1 = e.Location; public void MouseMove(object sender, Mous

11、eEventArgs e) if (this.bedraw) this.RecP2 = e.Location; public void MouseUp(object sender, MouseEventArgs e) this.bedraw = false; public void dpen(Color color, float width) /为画笔属性赋值 this.penColor = color; this.penWdith = width; public void Draw(Graphics g) Pen pen = new Pen(this.penColor, this.penWd

12、ith); g.DrawRectangle(pen, this.RecP1.X, this.RecP1.Y, this.RecP2.X - this.RecP1.X, this.RecP2.Y - this.RecP1.Y); /绘制矩形 public bool Judge(MouseEventArgs e) /判断点是否在矩形内 if (e.Location.X = this.RecP1.X & e.Location.X = this.RecP1.Y & e.Location.Y = this.RecP2.Y) /判断鼠标是否在矩形内 return true; else return fal

13、se; public void Circum(bool judge) float RecCir = 2 * (this.RecP2.X - this.RecP1.X) + 2 * (this.RecP2.Y - this.RecP1.Y); MessageBox.Show(矩形周长为: + RecCir, 消息, MessageBoxButtons.OK); public void Area(bool judge) float RecArea = (this.RecP2.X - this.RecP1.X)*(this.RecP2.Y - this.RecP1.Y); MessageBox.Sh

14、ow(矩形面积为：+RecArea , 消息, MessageBoxButtons.OK); 4) 绘制多边形的算法：Serializable() public class Polygon : IGraphics /多边形类 PointF Pol = new PointF1; /用于记录顶点的位置 bool bedraw = false; Color penColor; /画笔颜色 float penWdith; /画笔宽度 public void MouseDown(object sender, MouseEventArgs e) this.bedraw = true; this.Polth

15、is.Pol.Length - 1 = e.Location; /记录要绘制点的位置 public void MouseMove(object sender, MouseEventArgs e) public void MouseUp(object sender, MouseEventArgs e) public void dpen(Color color, float width) /为画笔属性赋值 this.penColor = color; this.penWdith = width; public void Draw(Graphics g) Pen pen = new Pen(this

16、.penColor, this.penWdith); g.DrawPolygon(pen, this.Pol); /绘制多边形 public bool Judge(MouseEventArgs e) return false; public void Circum(bool judge) MessageBox.Show(不能计算周长！, 警告, MessageBoxButtons.OK); public void Area(bool judge) MessageBox.Show(不能计算面积！, 警告, MessageBoxButtons.OK); 5) 绘制圆的算法：Serializable

17、() public class Circle : IGraphics /圆类 bool bedraw = false; PointF point1 = new PointF(); PointF point2 = new PointF(); / 分别记录圆的圆心和圆上任意一点的坐标 Color penColor; /画笔颜色 float penWdith; /画笔宽度 public void MouseDown(object sender, MouseEventArgs e) this.bedraw = true; this.point1 = e.Location; public void Mo

18、useMove(object sender, MouseEventArgs e) if (this.bedraw = true) this.point2 = e.Location; public void MouseUp(object sender, MouseEventArgs e) this.bedraw = false; public void dpen(Color color, float width) /为画笔属性赋值 this.penColor = color; this.penWdith = width; public void Draw(Graphics g) Pen pen

19、= new Pen(this.penColor, this.penWdith); float r =(float ) Math.Sqrt(point2.X - point1.X) * (point2.X - point1.X) + (point2.Y - point1.Y) * (point2.Y - point1.Y); g.DrawEllipse(pen, (point1.X - r), (point1.Y - r), 2 * r, 2 * r); /绘制圆 public bool Judge(MouseEventArgs e) float r = (float )Math.Sqrt(po

20、int2.X - point1.X) * (point2.X - point1.X) + (point2.Y - point1.Y) * (point2.Y - point1.Y); if (Math.Sqrt(e.Location.X - point1.X) * (e.Location.X - point1.X) + (e.Location.Y - point1.Y) * (e.Location.Y - point1.Y) = r) /判断鼠标是否在圆内 return true; else return false; public void Circum(bool judge) /计算圆周长

21、 float r = (float )Math.Sqrt(point2.X - point1.X) * (point2.X - point1.X) + (point2.Y - point1.Y) * (point2.Y - point1.Y); float CirC = (float )(2 * Math.PI * r); MessageBox.Show(圆形周长为: + CirC, 消息, MessageBoxButtons.OK); public void Area(bool judge) /计算圆面积 float r =(float ) Math.Sqrt(point2.X - poin

22、t1.X) * (point2.X - point1.X) + (point2.Y - point1.Y) * (point2.Y - point1.Y); float CirA = (float)Math.PI * r * r; MessageBox.Show(圆形面积为: + CirA, 消息, MessageBoxButtons.OK); 6) 绘制弧形的算法：Serializable() public class Arc : IGraphics /弧形类 bool bedraw = false; PointF point1 = new PointF(); PointF point2 =

23、 new PointF(); /记录矩形的左上角和右下角坐标 Color penColor; /画笔颜色 float penWdith; /画笔宽度 public void MouseDown(object sender, MouseEventArgs e) this.bedraw = true; this.point1 = e.Location; public void MouseMove(object sender, MouseEventArgs e) if (this.bedraw = true) this.point2 = e.Location; public void MouseUp

24、(object sender, MouseEventArgs e) this.bedraw = false; public void dpen(Color color, float width) /为画笔属性赋值 this.penColor = color; this.penWdith = width; public void Draw(Graphics g) /绘制弧形 Pen pen = new Pen(this.penColor, this.penWdith); g.DrawRectangle(pen, point1.X, point1.Y, Math.Abs(point2.X - po

25、int1.X), Math.Abs(point2.Y - point1.Y); public bool Judge(MouseEventArgs e) /计算前先判断鼠标是否在线段上 return false; public void Circum(bool judge) MessageBox.Show(不能计算长度 , 警告, MessageBoxButtons.OK); public void Area(bool judge) MessageBox.Show(不能计算面积！, 警告, MessageBoxButtons.OK); 7) 绘制椭圆的算法：Serializable() publ

26、ic class Ellipse : IGraphics /椭圆类 bool bedraw = false; PointF point1 = new PointF(); PointF point2 = new PointF(); /记录矩形的左上角和右下角坐标 Color penColor; /画笔颜色 float penWdith; /画笔宽度 public void MouseDown(object sender, MouseEventArgs e) this.bedraw = true; this.point1 = e.Location; public void MouseMove(ob

27、ject sender, MouseEventArgs e) if (this.bedraw = true) this.point2 = e.Location; public void MouseUp(object sender, MouseEventArgs e) this.bedraw = false; public void dpen(Color color, float width) /为画笔属性赋值 this.penColor = color; this.penWdith = width; public void Draw(Graphics g) /绘制椭圆 Pen pen = ne

28、w Pen(this.penColor, this.penWdith); g.DrawEllipse(pen, point1.X, point1.Y, point2.X - point1.X, point2.Y - point1.Y); public bool Judge(MouseEventArgs e) /计算前先判断鼠标是否在线段上 float a = (point1.X - point2.X) / 2) * (point1.X - point2.X) / 2); float b = (point1.Y - point2.Y) / 2) * (point1.Y - point2.Y) /

29、 2); float c = (point1 .X + point2.X ) / 2; float d = (point1 .Y + point2 .Y ) / 2; if (e.X - c) * (e.X - c) / a + (e.Y - d) * (e.Y - d) / b) = 1) return true; else return false; public void Circum(bool judge) float EllCir = (float )Math .PI *(Math .Abs (this.point1 .X - this .point2 .X )+Math .Abs (this .point1 .Y -thi