Unit 17A 類別定義與動畫&影像局部放大

Unit 17A 類別定義與動畫

1.   設定視窗為(720,480)，載入大地影像(至少1024*1024)

2.   將人物影像擺在視窗正中央

3.   以畫布平移方式，e.Graphics.TranslateTransform(x,y);按上下左右可以移動背景，人物永遠在視窗中央

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace WindowsFormsApplication1

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        Image im1 = Properties.Resources.f1;

        int x, y;

        private void Form1_Load(object sender, EventArgs e)

        {

            this.Width = 720; this.Height = 480;

            this.DesktopLocation = new Point(10, 10);

            x=(720-im1.Width)/2;y=(480-im1.Height)/2;

        }

        private void Form1_Paint(object sender, PaintEventArgs e)

        {

            this.DoubleBuffered=true;

            e.Graphics.TranslateTransform(x, y);

            e.Graphics.DrawImage(im1,x,y);

            e.Graphics.ResetTransform(); //繪圖畫布還原

            e.Graphics.FillEllipse(Brushes.Red, (720 - 64) / 2, (480 - 64) / 2, 64, 64);

        }

        private void Form1_KeyDown(object sender, KeyEventArgs e)

        {

            if(e.KeyCode==Keys.Left)

                x=x-3;

            else if (e.KeyCode==Keys.Right)

                x=x+3;

            if (e.KeyCode == Keys.Up)

                y = y - 3;

            else if (e.KeyCode == Keys.Down)

                y = y + 3;

            this.Refresh();

        }

    }

}

Unit 17B

影像局部放大

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace Unit_17B

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        int x1, y1, x2, y2;

        int w = 96, h = 80;

        int x3=300, y3=150;

        int r = 3;

        Image im1 = Properties.Resources.wattch2;

        private void Form1_Load(object sender, EventArgs e)

        {

            this.Width = 960; this.Height = 640;

            this.DesktopLocation = new Point(10, 10);

        }

        private void Form1_Paint(object sender, PaintEventArgs e)

        {

            this.DoubleBuffered=true;

            e.Graphics.DrawImage(im1, 0, 0);

            //DrawRectangle(線色彩寬度,左上x,左上y,寬,高)

            e.Graphics.DrawRectangle(new Pen(Color.Red, 3),

                x1 - 84 / 2, y1 - 64 / 2, w, h);

            //re1: 影像上的某一矩形位置左上角(300,150),矩形寬高(80,50)

            Rectangle re1 =new Rectangle(x1-w/2,y1-h/2,w,h);

            Rectangle re2= new Rectangle(600,150,w*r,h*r);

            e.Graphics.DrawImage(im1,re2,re1,GraphicsUnit.Pixel);

        }

        private void Form1_MouseMove(object sender, MouseEventArgs e)

        {

            Point p = e.Location;

            x1 = p.X; y1 = p.Y;

            this.Refresh();

        }

    }

}