图形学课设计算机软件及应用IT计算机专业资料.docx

1、图形学课设计算机软件及应用IT计算机专业资料二0一五 二0一六 学年第 一 学期计算机科学与技术学院课程设计报告书 题 目： JAVA简单画图程序 课程名称： 图形学与平面设计 班 级： 学 号： 姓 名： 指导教师： 二0一五年 十一月二十七日一 设计目的 课程设计是信息与计算科学专业集中实践性环节之一，是学习完计算机图形学课程后进行的一次全面的综合练习。其目的是： （1）要达到理论与实际应用相结合，使学生能够根据数据对象的特性，学会数据组织的方法，能把现实世界中的实际问题在计算机内部表示出来，并培养良好的程序设计技能。 （2）在实践中认识为什么要学习数据结构，掌握数据结构、程序设计语言、程

2、序设计技术之间的关系，是前面所学知识的综合和回顾 课程设计是我们的主要教学实践环节,通过课程设计我们围绕基础课或者专业课,运用学的知识,结合实际应用设计而进行的一次综合分析设计能力的训练. 课程设计的宗旨在与培养我们在本课程范围内,初步掌握解决实际应用问题时所应具备的查阅资料,综合运用所学知识的能力,为毕业设计及今后从事专业工作打下基础.通过本次课程设计,能够锻炼我们的动手能力,使我们能够很好的巩固上一个学期所学的知识内容,掌握工程软件设计的基本方法,强化了我们上机动手的能力,通过这次的课程设计,我们感觉到了以前学习的不足,以及在学习的过程中遇到的问题,能使我们对学过的知识加深理解,为后续学的

3、计算机专业课,打下坚实的基础.二 总体设计简单绘图板程序此图形图像处理机具有如下功能：1能由鼠标控制绘制直线、矩形、椭圆，并能控制线条的颜色2能改变矩形和椭圆。3能打开和保存为图形文件。4能打开图片。5能通过参数对图片进行缩放我们做的这个绘图板是一个简易的类似Windows画图工具的简单绘图板程序,我们设计了主要有菜单栏,状态栏等基本元素,能够实现简单的集合画图,也能够在鼠标控制下进行手动画图.通过测试程序能够顺利运行. 要求利用C#的编程思想以及组件开发原理来完成系统的设计。 主要流程图如下：三 源代码using System;using System.Collections.Generic

4、;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Drawing.Drawing2D;using System.Runtime.Serialization.Formatters.Binary;using System.IO;using System.Xml.Serialization;using System.Drawing.Imaging;namespace 画图板 public enum S

5、hapeType /绘图类型 FreeDraw, Eraser, Line, Rectangle, Ellipse, FillEllipse, FillRectangle, Curve, Path, Pick, Polygon, Text, Circle, FillCircle, SelectRectangle, SelectFillRectangle public enum SizeGrip /区块的位置 None = 0, Top, Bottom, Left, Right, TopLeft, TopRight, BottomLeft, BottomRight, All public par

6、tial class MainForm : Form #region 初始化 public MainForm() InitializeComponent(); clr = colorHatch1.CurrentColor; get if (sizeGripRectList = null) sizeGripRectList = new Dictionary(); return sizeGripRectList; #endregion #region 绘图工具事件 private void btnFree_Click(object sender, EventArgs e) Initl(); typ

7、e = ShapeType.FreeDraw; private void btnCurve_Click(object sender, EventArgs e) Initl(); type = ShapeType.Curve; tmpCurve = new Curve(clr); private void btnRectangle_Click(object sender, EventArgs e) Initl(); type = ShapeType.Rectangle; private void btnFilledRectangle_Click(object sender, EventArgs

8、e) Initl(); type = ShapeType.FillRectangle; private void btnCircle_Click(object sender, EventArgs e) Initl(); type = ShapeType.Circle; private void btnFillCircle_Click(object sender, EventArgs e) Initl(); type = ShapeType.FillCircle; private void btnEllipse_Click(object sender, EventArgs e) Initl();

9、 type = ShapeType.Ellipse; private void btnFillEllipse_Click(object sender, EventArgs e) Initl(); type = ShapeType.FillEllipse; private void btnPolygon_Click(object sender, EventArgs e) Initl(); type = ShapeType.Polygon; tmpPolygon = new Polygon(clr); private void btnText_Click(object sender, EventA

10、rgs e) Initl(); type = ShapeType.Text; label1.Visible = true; private void btnPath_Click(object sender, EventArgs e) type = ShapeType.Path; private void btnPick_Click(object sender, EventArgs e) Initl(); type = ShapeType.Pick; #endregion #region 图片框事件 private void pictureBox1_MouseDown(object sender

11、, MouseEventArgs e) if (e.Button = MouseButtons.Left) p1 = new Point(e.X, e.Y); if (finish) if (sizegrip = SizeGrip.All) tempmove = p1; return; else if (textBox1.Visible) shape = new Text(clr, textBox1.Text, textBox1.Font, new Point(textBox1.Location.X - 98, textBox1.Location.Y - 34); textBox1.Text

12、= ; textBox1.Visible = false; label1.Visible = false; shapeList.Add(shape); finish = false; StartPolygon = true; Selectshape.Clear(); tmpPolygon = new Polygon(clr); tmpCurve = new Curve(clr); pictureBox1.Refresh(); Points.Clear(); if (type = ShapeType.Polygon) if (StartPolygon) tmpPolygon.AddPoint(p

13、1); selectRecStart = selectRecEnd = p1; StartPolygon = false; else if (p1 = tmpPolygon.Points0) foreach (Point p in tmpPolygon.Points) selectRecStart = new Point(Math.Min(selectRecStart.X, p.X), Math.Min(selectRecStart.Y, p.Y); selectRecEnd = new Point(Math.Max(selectRecEnd.X, p.X), Math.Max(selectR

14、ecEnd.Y, p.Y); selectRecSize = new Size(selectRecEnd.X - selectRecStart.X, selectRecEnd.Y - selectRecStart.Y); finish = true; else shape = new Polygon(clr, tmpPolygon.Points, p1,width); pictureBox1.Refresh(); else if (type = ShapeType.Curve) if (StartPolygon) tmpCurve.AddPoint(p1); selectRecStart =

15、selectRecEnd = p1; StartPolygon = false; else if (tmpCurve.Points.Count = 3) tmpCurve.AddPoint(p1); foreach (Point p in tmpCurve.Points) selectRecStart = new Point(Math.Min(selectRecStart.X, p.X), Math.Min(selectRecStart.Y, p.Y); selectRecEnd = new Point(Math.Max(selectRecEnd.X, p.X), Math.Max(selec

16、tRecEnd.Y, p.Y); selectRecSize = new Size(selectRecEnd.X - selectRecStart.X, selectRecEnd.Y - selectRecStart.Y); finish = true; else shape = new Curve(clr, tmpCurve.Points, p1,width); pictureBox1.Refresh(); else if (type = ShapeType.FreeDraw | type = ShapeType.Eraser) Points.Add(p1); else if (type =

17、 ShapeType.Pick) clr = colorHatch1.CurrentColor = CreateImage().GetPixel(e.X, e.Y); if (e.Button = MouseButtons.Right) finish = false; StartPolygon = true; Selectshape.Clear(); tmpPolygon = new Polygon(clr); tmpCurve = new Curve(clr); shape = null; textBox1.Text = ; textBox1.Visible = false; picture

18、Box1.Refresh(); Points.Clear(); private void pictureBox1_MouseMove(object sender, MouseEventArgs e) if (box.Contains(e.X, e.Y) if (type = ShapeType.Eraser) this.Cursor = defaultcursor; else this.defaultcursor = Cursors.Cross; this.Cursor = this.defaultcursor; break; case ShapeType.FillCircle: shape

19、= new FillCircle(clr, p1, p2); break; default: break; pictureBox1.Refresh(); private void pictureBox1_MouseUp(object sender, MouseEventArgs e) if (e.Button = MouseButtons.Left) if (type = ShapeType.Eraser | type = ShapeType.FreeDraw) shapeList.Add(shape); Points = new List(); return; else if (type =

20、 ShapeType.Pick) colorHatch1.CurrentColor = CreateImage().GetPixel(e.X, e.Y); return; else if (type = ShapeType.Polygon | type = ShapeType.Curve) else if (p1 = new Point(e.X, e.Y) return; if (!finish) if (type = ShapeType.Polygon) tmpPolygon.AddPoint(new Point(e.X, e.Y); else if (type = ShapeType.Cu

21、rve) tmpCurve.AddPoint(new Point(e.X, e.Y); else startpoint = p1; endpoint = new Point(e.X, e.Y); finish = true; selectRecStart = new Point(Math.Min(p1.X, p2.X), Math.Min(p1.Y, p2.Y); selectRecSize = new Size(Math.Abs(p1.X - p2.X), Math.Abs(p1.Y - p2.Y); private void pictureBox1_MouseDoubleClick(obj

22、ect sender, MouseEventArgs e) if (type = ShapeType.Polygon) foreach (Point p in tmpPolygon.Points) selectRecStart = new Point(Math.Min(selectRecStart.X, p.X), Math.Min(selectRecStart.Y, p.Y); selectRecEnd = new Point(Math.Max(selectRecEnd.X, p.X), Math.Max(selectRecEnd.Y, p.Y); selectRecSize = new S

23、ize(selectRecEnd.X - selectRecStart.X, selectRecEnd.Y - selectRecStart.Y); finish = true; else if (type = ShapeType.Curve) foreach (Point p in tmpCurve.Points) selectRecStart = new Point(Math.Min(selectRecStart.X, p.X), Math.Min(selectRecStart.Y, p.Y); selectRecEnd = new Point(Math.Max(selectRecEnd.

24、X, p.X), Math.Max(selectRecEnd.Y, p.Y); selectRecSize = new Size(selectRecEnd.X - selectRecStart.X, selectRecEnd.Y - selectRecStart.Y); finish = true; private void pictureBox1_Paint(object sender, PaintEventArgs e) g = e.Graphics; if (shapeList.Count 0) foreach (Shape s in shapeList) s.Draw(g); if (

25、Selectshape.Count 0) foreach (Shape s in Selectshape) s.Draw(g); if (shape != null) shape.Draw(g); private void colorHatch1_ColorChange(object sender, MyControl.ColorHatch.ColorChangeEventArgs e) clr = colorHatch1.CurrentColor; textBox1.ForeColor = clr; if (StartPolygon = false) switch (type) case S

26、hapeType.Curve: tmpCurve = new Curve(clr, tmpCurve.Points,width); break; case ShapeType.Polygon: tmpPolygon = new Polygon(clr, tmpPolygon.Points,width); break; / 初始化按键 / private void Initl() if (finish) if (textBox1.Visible) shape = new Text(clr, textBox1.Text, textBox1.Font, new Point(textBox1.Loca

27、tion.X - 98, textBox1.Location.Y - 34); textBox1.Text = ; textBox1.Visible = false; shapeList.Add(shape); finish = false; shape = null; StartPolygon = true; Selectshape.Clear(); Points.Clear(); pictureBox1.Refresh(); / / 获取橡皮擦鼠标样式 / private void EraserCursor() Bitmap bitmap = new Bitmap(width * 2, w

28、idth * 2); Graphics g = Graphics.FromImage(bitmap); g.Clear(Color.White); g.DrawRectangle(new Pen(Color.Black), new System.Drawing.Rectangle(0, 0, bitmap.Size.Width - 1, bitmap.Size.Width - 1); g.Dispose(); this.defaultcursor = new Cursor(Icon.FromHandle(bitmap.GetHicon().Handle); private void save(

29、string path) if (path = null) path = .图片.sav; if (serializer) try BinaryFormatter binserializer = new BinaryFormatter(); using (FileStream fs = new FileStream(path, FileMode.CreateNew) binserializer.Serialize(fs, shapeList); fs.Close(); MessageBox.Show(保存成功, 提示, MessageBoxButtons.OK, MessageBoxIcon.Information); catch (Exception ex)