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 Week6
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
Random rd = new Random();//宣告亂數種子
int x, y, w, h;//(x,y)左上座標; w:寬
Point[] po = new Point[20];
Pen pe1; //畫筆顏色
Brushes br; //填滿色彩
Font fo; //文字
Image im1; //影像
Image[] im = new Image[4]; //影像陣列
//外部變數
private void Form1_Load(object sender, EventArgs e)
{
this.Width = 960;//視窗寬高
this.Height = 680;
//在視窗中央畫十字交叉的線,中央畫綠色實心矩形寬240,高160
//Color.FromArgb(透明度, 紅色(0-255), 綠色, 藍色)
pe1 = new Pen(Color.FromArgb(100, 120, 0, 240), 4);
fo = new Font("微軟正黑體", 36);
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
this.DoubleBuffered = true;
e.Graphics.DrawLine(pe1, new Point(0,this.Height/2),
new Point(this.Width, this.Height / 2));
e.Graphics.DrawLine(pe1, new Point(this.Width/2,0),
new Point(this.Width/2, this.Height));
2017年3月21日 星期二
Unit 5 DrawLine, DrawLines, DrawArc,
Unit 5 DrawLine, DrawLines, DrawArc, 鍵盤事件 (畫線、畫弧線)
2017/03/22
X=0,y=0 (0,0)視窗最左上角的點
(this.Width,this.Height)最右下角的點
Form1_Load():程式執行第一個執行的事件，只執行一次，通常設定變數初值或環境設定(視窗寬高，最大化，計時器啟動，...)
this 表作用視窗
//宣告點的陣列含5個初值(存五個點) (Point表整數，Point F表浮點數可用小數)
Point[] p = new
Point[5]; //Pen表線型，Brush塗色
設定線型pe1為紅色5點寬
Pen pe1 = new Pen(Color.Red,
5);
如何宣告一個含有5個點的陣列
Point[] p = new Point[5];
給定點陣列p,如何畫連續線(其中線型顏色線寬為pe1)
e.Graphics.DrawLines(pe1, p);
給定點陣列p,如何畫弧線(其中線型顏色線寬為pe2)
e.Graphics.DrawCurve(pe2, p);
填色
e.Graphics.FillClosedCurve(Brushes.LightSeaGreen,
p); //Brushes表很多顏色
宣告亂數種子rd
Random rd = new Random();
亂數範圍100~800
rd.Next(100, 800)
5個點陣列初值亂數設定
for (int i = 0; i < p.Length; i++) //陣列長度個數
p[i] = new Point(rd.Next(100,
800), rd.Next(100, 600));//設定xy座標為亂數
根據點陣列p顯示填滿的封閉區域(色彩值自訂)3%/5%
根據點陣列p每隔0.5秒顯示填滿的封閉區域(色彩值自訂)5%/5%
根據點陣列p每隔0.5秒顯示填滿的封閉區域(色彩值亂數)7%/5%
(hint: 利用Brush型態的陣列)
宣告陣列 這些填滿的區域
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 Week5
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
//宣告點的陣列含5個初值(存五個點)(Point表整數，Point F表浮點數可用小數)
Point[] p = new Point[5];
Pen pe1 = new Pen(Color.Red,
5); //設定圖刷紅色,5個像點,Pen表線型，Brush塗色
Pen pe2 = new Pen(Color.Blue,10);
Random rd = new Random();//宣告亂數種子rd
Brush[] br = new Brush[3];
private void
Form1_Load(object sender, EventArgs e)
//程式執行第一個執行的事件，只執行一次，通常設定變數初值或環境設定(視窗寬高，最大化，計時器啟動，...)
{
this.Width = 960; this.Height
= 720; //表作用視窗
br[0] =
Brushes.RoyalBlue;
br[1] =
Brushes.Purple;
br[2] =
Brushes.Olive;
p[0] = new Point(240,
310);
p[1] = new Point(290,
180);
p[2] = new Point(390,
120);
p[3] = new Point(480,
200);
p[4] = new Point(200,
510);
}
private void
Form1_Paint(object sender, PaintEventArgs e)
{
this.DoubleBuffered = true;
//避免閃爍
e.Graphics.DrawLines(pe1, p);//給定點陣列p,畫連續線(其中線型顏色線寬為pe1)
e.Graphics.DrawCurve(pe2, p);//給定點陣列p,畫弧線(其中線型顏色線寬為pe2)
e.Graphics.FillClosedCurve(br[rd.Next(0,3)], p); //Brushes表很多顏色
}
private void
timer1_Tick(object sender, EventArgs e)
{
for (int i = 0; i
< p.Length; i++) //陣列長度個數
p[i] = new Point(rd.Next(100,
800), rd.Next(100, 600));//設定xy座標為亂數
this.Refresh();
}
}
}
2017年3月14日 星期二
Unit 4 C# Pen & ContextMenu
Unit
4 C# Pen & ContextMenu
結構=資料巨集
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 Paint1
{
public
partial class Form1 : Form
{
public
Form1()
{
InitializeComponent();
}
Pen
pe0, pe1; //3-1.要先宣告pe0,pe1
//5-1.宣告5000個元素的整數陣列(表訊號強度)(靜態陣列)
int[]
s = new int[5000];
//5-1. 型態(配置一個大樓有5000個房間)
Random
rd = new Random();
//5-2.設定亂數物件
private
void Form1_Load(object
sender, EventArgs e)
{
this.Width
= 960; this.Height = 720; //1.視窗寬高
//2.定義線型物件(色彩粗細)pe0
pe0 = new Pen(Color.Blue, 2);
//3.指定線型物件屬性(如起始端點,結束端點樣式,...)
pe0.EndCap =
System.Drawing.Drawing2D.LineCap.ArrowAnchor;
pe1 = new Pen(Color.BlueViolet,
1);
for
(int i = 0; i < 5000; i++)//5跑for迴圈
s[i] = rd.Next(100,
350); //5-3. 100~350之間的整數亂數
}
private
void Form1_Paint(object
sender, PaintEventArgs e)
{
this.DoubleBuffered
= true;//4.避免閃爍
//3-2畫線DrawLine(線型, x0,y0,x1,y1);或
//畫線DrawLine(線型,new Point (x0,y0), new Point(x1,y1));
e.Graphics.DrawLine(pe0,
50, 400, 600, 400);//第一條線
e.Graphics.DrawLine(pe0,
new Point(50,
400),
new Point(50,
50));
Point[]
pt1 = new Point[500];//5-4. 500個點
for
(int i = 0; i < 500; i++)
{
pt1[i].X = i + 100;
pt1[i].Y = s[i];
}
e.Graphics.DrawLines(pe1, pt1);
}
}
}
課堂練習: 讓畫布每秒往左邊移動
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 Paint1
{
public
partial class Form1 : Form
{
public
Form1()
{
InitializeComponent();
}
Pen
pe0, pe1; //3-1.要先宣告pe0,pe1
//5-1.宣告5000個元素的整數陣列(表訊號強度)(靜態陣列)
int[]
s = new int[5000];
//5-1. 型態(配置一個大樓有5000個房間)
Random
rd = new Random();
//5-2.設定亂數物件
Point[]
pt1 = new Point[500];//5-4. 500個點
int
k = 0;
private
void Form1_Load(object
sender, EventArgs e)
{
this.Width
= 960; this.Height = 720; //1.視窗寬高
//2.定義線型物件(色彩粗細)pe0
pe0 = new Pen(Color.Blue, 2);
//3.指定線型物件屬性(如起始端點,結束端點樣式,...)
pe0.EndCap =
System.Drawing.Drawing2D.LineCap.ArrowAnchor;
pe1 = new Pen(Color.BlueViolet, 1);
for
(int i = 0; i < 5000; i++)//5.跑for迴圈
s[i] = rd.Next(100,
350); //5-3. 100~350之間的整數亂數
}
private
void Form1_Paint(object
sender, PaintEventArgs e)
{
this.DoubleBuffered
= true;//4.避免閃爍
//3-2.畫線DrawLine(線型, x0,y0,x1,y1);或
//畫線DrawLine(線型,new Point (x0,y0), new Point(x1,y1));
e.Graphics.DrawLine(pe0,
50, 400, 600, 400);//第一條線
e.Graphics.DrawLine(pe0,
new Point(50,
400),
new Point(50,
50));
e.Graphics.DrawLines(pe1, pt1);
}
private void timer1_Tick(object
sender, EventArgs e)
{
for (int i = 0; i < 500; i++)
{
pt1[i].X = i + 100;
pt1[i].Y = s[i+k];//讓畫布每秒往左邊移動
}
k++;
this.Refresh();//6-1要求畫布重畫
}
}
}
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