求java版画图程序的源代码

找到了，很久以前写的一个简单画图，呵呵～当时要求用AWT写，很难受。

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package net.miqiang.gui;

import java.awt.BasicStroke;

import java.awt.BorderLayout;

import java.awt.Button;

import java.awt.Color;

import java.awt.Cursor;

import java.awt.Dimension;

import java.awt.Frame;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.GridLayout;

import java.awt.Label;

import java.awt.Panel;

import java.awt.RenderingHints;

import java.awt.Toolkit;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import java.awt.event.MouseMotionListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.awt.image.BufferedImage;

/**

* 简单画图板程序

* 好久没用 AWT 了，写起来真别扭，如果用 swing 会很舒服，有空再改写吧。

*

* @author 米强

*

*/

public class TestMain extends Frame {

// 画板

private Palette palette = null;

// 显示当前颜色的面板

private Panel nonceColor = null;

// 画笔粗细

private Label drawWidth = null;

// 画笔端点的装饰

private Label drawCap = null;

// 选取颜色按钮的监听事件类

private ButtonColorAction buttonColorAction = null;

// 鼠标进入按钮后光标样式的监听事件类

private ButtonCursor buttonCursor = null;

// 画笔样式的监听事件

private ButtonStrokeAction buttonStrokeAction = null;

/**

* 构造方法

*

*/

public TestMain() {

// 设置标题栏文字

super("简易画图板");

// 构造一个画图板

palette = new Palette();

Panel pane = new Panel(new GridLayout(2, 1));

// 画笔颜色选择器

Panel paneColor = new Panel(new GridLayout(1, 13));

// 12 个颜色选择按钮

Button [] buttonColor = new Button[12];

Color [] color = {Color.black, Color.blue, Color.cyan, Color.darkGray, Color.gray, Color.green, Color.magenta, Color.orange, Color.pink, Color.red, Color.white, Color.yellow};

// 显示当前颜色的面板

nonceColor = new Panel();

nonceColor.setBackground(Color.black);

paneColor.add(nonceColor);

buttonColorAction = new ButtonColorAction();

buttonCursor = new ButtonCursor();

for(int i = 0; i buttonColor.length; i++){

buttonColor[i] = new Button();

buttonColor[i].setBackground(color[i]);

buttonColor[i].addActionListener(buttonColorAction);

buttonColor[i].addMouseListener(buttonCursor);

paneColor.add(buttonColor[i]);

}

pane.add(paneColor);

// 画笔颜色选择器

Panel paneStroke = new Panel(new GridLayout(1, 13));

// 控制画笔样式

buttonStrokeAction = new ButtonStrokeAction();

Button [] buttonStroke = new Button[11];

buttonStroke[0] = new Button("1");

buttonStroke[1] = new Button("3");

buttonStroke[2] = new Button("5");

buttonStroke[3] = new Button("7");

buttonStroke[4] = new Button("9");

buttonStroke[5] = new Button("11");

buttonStroke[6] = new Button("13");

buttonStroke[7] = new Button("15");

buttonStroke[8] = new Button("17");

buttonStroke[9] = new Button("■");

buttonStroke[10] = new Button("●");

drawWidth = new Label("3", Label.CENTER);

drawCap = new Label("●", Label.CENTER);

drawWidth.setBackground(Color.lightGray);

drawCap.setBackground(Color.lightGray);

paneStroke.add(drawWidth);

for(int i = 0; i buttonStroke.length; i++){

paneStroke.add(buttonStroke[i]);

buttonStroke[i].addMouseListener(buttonCursor);

buttonStroke[i].addActionListener(buttonStrokeAction);

if(i = 8){

buttonStroke[i].setName("width");

}else{

buttonStroke[i].setName("cap");

}

if(i == 8){

paneStroke.add(drawCap);

}

}

pane.add(paneStroke);

// 将画笔颜色选择器添加到窗体中

this.add(pane, BorderLayout.NORTH);

// 将画图板添加到窗体中

this.add(palette);

// 添加窗口监听，点击关闭按钮时退出程序

this.addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent e) {

System.exit(0);

}

});

// 设置窗体 ICON 图标

this.setIconImage(Toolkit.getDefaultToolkit().createImage("images/palette.png"));

// 设置窗口的大小

this.setSize(new Dimension(400, 430));

// 设置窗口位置，处于屏幕正中央

this.setLocationRelativeTo(null);

// 显示窗口

this.setVisible(true);

}

/**

* 程序入口

*

* @param args

* 字符串数组参数

*/

public static void main(String[] args) {

new TestMain();

}

/**

* 选取颜色按钮的监听事件类

* @author 米强

*

*/

class ButtonColorAction implements ActionListener {

public void actionPerformed(ActionEvent e) {

Color color_temp = ((Button)e.getSource()).getBackground();

nonceColor.setBackground(color_temp);

palette.setColor(color_temp);

}

}

/**

* 鼠标进入按钮变换光标样式监听事件类

* @author 米强

*

*/

class ButtonCursor extends MouseAdapter {

public void mouseEntered(MouseEvent e) {

((Button)e.getSource()).setCursor(new Cursor(Cursor.HAND_CURSOR));

}

public void mouseExited(MouseEvent e) {

((Button)e.getSource()).setCursor(new Cursor(Cursor.DEFAULT_CURSOR));

}

}

/**

* 设置画笔的监听事件类

* @author 米强

*

*/

class ButtonStrokeAction implements ActionListener {

public void actionPerformed(ActionEvent e) {

Button button_temp = (Button) e.getSource();

String name = button_temp.getName();

if(name.equalsIgnoreCase("width")){

drawWidth.setText(button_temp.getLabel());

palette.setStroke(Float.parseFloat(button_temp.getLabel()));

}else if(name.equalsIgnoreCase("cap")){

drawCap.setText(button_temp.getLabel());

if(button_temp.getLabel().equals("■")){

palette.setStroke(BasicStroke.CAP_SQUARE);

}else if(button_temp.getLabel().equals("●")){

palette.setStroke(BasicStroke.CAP_ROUND);

}

}

}

}

}

/**

* 画板类

*

* @author 米强

*

*/

class Palette extends Panel implements MouseListener, MouseMotionListener {

// 鼠标 X 坐标的位置

private int mouseX = 0;

// 上一次 X 坐标位置

private int oldMouseX = 0;

// 鼠标 Y 坐标的位置

private int mouseY = 0;

// 上一次 Y 坐标位置

private int oldMouseY = 0;

// 画图颜色

private Color color = null;

// 画笔样式

private BasicStroke stroke = null;

// 缓存图形

private BufferedImage image = null;

/**

* 构造一个画板类

*

*/

public Palette() {

this.addMouseListener(this);

this.addMouseMotionListener(this);

// 默认黑色画笔

color = new Color(0, 0, 0);

// 设置默认画笔样式

stroke = new BasicStroke(3.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);

// 建立 1280 * 1024 的 RGB 缓存图象

image = new BufferedImage(1280, 1024, BufferedImage.TYPE_INT_RGB);

// 设置颜色

image.getGraphics().setColor(Color.white);

// 画背景

image.getGraphics().fillRect(0, 0, 1280, 1024);

}

/**

* 重写 paint 绘图方法

*/

public void paint(Graphics g) {

super.paint(g);

// 转换为 Graphics2D

Graphics2D g2d = (Graphics2D) g;

// 获取缓存图形 Graphics2D

Graphics2D bg = image.createGraphics();

// 图形抗锯齿

bg.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

// 设置绘图颜色

bg.setColor(color);

// 设置画笔样式

bg.setStroke(stroke);

// 画线，从上一个点到新的点

bg.drawLine(oldMouseX, oldMouseY, mouseX, mouseY);

// 将缓存中的图形画到画板上

g2d.drawImage(image, 0, 0, this);

}

/**

* 重写 update 方法

*/

public void update(Graphics g) {

this.paint(g);

}

/**

* @return stroke

*/

public BasicStroke getStroke() {

return stroke;

}

/**

* @param stroke 要设置的 stroke

*/

public void setStroke(BasicStroke stroke) {

this.stroke = stroke;

}

/**

* 设置画笔粗细

* @param width

*/

public void setStroke(float width) {

this.stroke = new BasicStroke(width, stroke.getEndCap(), stroke.getLineJoin());

}

/**

* 设置画笔端点的装饰

* @param cap 参考 java.awt.BasicStroke 类静态字段

*/

public void setStroke(int cap) {

this.stroke = new BasicStroke(stroke.getLineWidth(), cap, stroke.getLineJoin());

}

/**

* @return color

*/

public Color getColor() {

return color;

}

/**

* @param color 要设置的 color

*/

public void setColor(Color color) {

this.color = color;

}

public void mouseClicked(MouseEvent mouseEvent) {

}

/**

* 鼠标按下

*/

public void mousePressed(MouseEvent mouseEvent) {

this.oldMouseX = this.mouseX = mouseEvent.getX();

this.oldMouseY = this.mouseY = mouseEvent.getY();

repaint();

}

public void mouseReleased(MouseEvent mouseEvent) {

}

/**

* 鼠标进入棋盘

*/

public void mouseEntered(MouseEvent mouseEvent) {

this.setCursor(new Cursor(Cursor.CROSSHAIR_CURSOR));

}

/**

* 鼠标退出棋盘

*/

public void mouseExited(MouseEvent mouseEvent) {

this.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));

}

/**

* 鼠标拖动

*/

public void mouseDragged(MouseEvent mouseEvent) {

this.oldMouseX = this.mouseX;

this.oldMouseY = this.mouseY;

this.mouseX = mouseEvent.getX();

this.mouseY = mouseEvent.getY();

repaint();

}

public void mouseMoved(MouseEvent mouseEvent) {

}

}

求JAVA代码三叶玫瑰线 r=asin3θ或r=acos3θ。别把那个垃圾的粘过来，谢谢

package epm.mp.gateway.util;

import java.awt.Color;

import java.awt.FlowLayout;

import java.awt.Graphics;

import java.awt.event.ComponentEvent;

import java.awt.event.ComponentListener;

import java.awt.event.ItemEvent;

import java.awt.event.ItemListener;

import javax.swing.JComboBox;

import javax.swing.JFrame;

public class Rose extends JFrame implements ComponentListener, ItemListener {

private JComboBox comboboxColor;

// 颜色组合框

public Rose() {

super("玫瑰线");

this.setSize(600, 400);

this.setDefaultCloseOperation(EXIT_ON_CLOSE);

this.setLayout(new FlowLayout());

Object data[] = { Color.red, Color.green, Color.blue };

comboboxColor = new JComboBox(data);

// 颜色组合框

comboboxColor.addItemListener(this);

// 注册组合框的选择事件监听器

this.add(comboboxColor);

this.addComponentListener(this);

// 注册框架窗口的选择事件监听器

this.setVisible(true);

this.validate();

}

//r=asin3θ

//转化为直角坐标系

// 输入下面程序用于输出三叶玫瑰线的图形，三叶玫瑰线的参数方程为：

// x = r * sin(3t)* cos(t);

//y = r *sin(3t) * sin(t)

//其中: 0 = t = 2 * 3.14159

//

public void paint(Graphics g){

paint(g,3);

}

public void paint(Graphics g,int roses) {

int x0, y0;

// 原点坐标

x0 = this.getWidth() / 2;

// 窗口的宽度

y0 = this.getHeight() / 2;

g.setColor((Color) comboboxColor.getSelectedItem());

// 设置画线颜色为组合框选中颜色

g.drawLine(x0, 0, x0, y0 * 2);

g.drawLine(0, y0, x0 * 2, y0);

int j = 0;

while (j 200) {

for (int i = 0; i 1023; i++) {

double angle = i * Math.PI / 512;

double radius = j * Math.sin(roses * angle);

int x = (int) Math.round(radius * Math.cos(angle) );

int y = (int) Math.round(radius * Math.sin(angle));

g.fillOval(x0 + x, y0 + y, 1, 1);//画点

}

j += 10;

}

}

public void itemStateChanged(ItemEvent e) {

// 选中单选按钮

repaint();

// 重画

}

public void componentResized(ComponentEvent e) {

// 改变窗口大小时

repaint();

}

public void componentMoved(ComponentEvent e) {

}

public void componentHidden(ComponentEvent e) {

}

public void componentShown(ComponentEvent e) {

}

public static void main(String[] arg) {

new Rose();

}

}

求一个彩色3D分形山的MATLAB或Java或vb源程序

我这里有。要加分哦。兄弟。下面就是JAVA的源码：

// 3D painted fractal mountains, Evgeny Demidov 12 Oct 2001

import java.awt.*;

import java.awt.event.*;

import java.util.StringTokenizer;

public class MountainC extends java.applet.Applet

implements MouseListener, MouseMotionListener {

int n = 16, n1, h,w,h2,w2, mx0,my0, xPol[],yPol[], iCol[][][];

double rnd, fiX = .2, fiY = .3, dfi = .01, scale = .8, m20,m21,m22;

double vert[][][], vert1[][][], Norm[][][][], Norm1z[][][], M[];

Image buffImage; Graphics buffGraphics;

Color col[][];

boolean painted;

public void init(){

w = getSize().width; h = getSize().height; w2 = w/2; h2 = h/2;

String s=getParameter("N"); if (s != null) n = Integer.parseInt(s);

xPol = new int[3]; yPol = new int[3];

buffImage = createImage(w, h); buffGraphics = buffImage.getGraphics();

col = new Color[4][256];

for (int i = 0; i 256; i++){

col[0][i] = new Color(0, 0, i);

col[1][i] = new Color(0, (i*220)/256, 0);

col[2][i] = new Color((i*150)/256, (i*150)/256, (i*50)/256);

col[3][i] = new Color(i, i, i);}

s = getParameter("bgColor"); if (s != null){

StringTokenizer st = new StringTokenizer(s);

int red = Integer.parseInt(st.nextToken());

int green = Integer.parseInt(st.nextToken());

int blue = Integer.parseInt(st.nextToken());

setBackground( new Color(red, green, blue));}

else setBackground(new Color(255,255,255));

addMouseListener(this);

addMouseMotionListener(this);

setup();

}

public double R(){ return rnd*(Math.random()-.5);}

public void setup(){

rnd = 1;

n1 = n+1;

iterate();

vert = new double[n1][n1][3]; vert1 = new double[n1][n1][2];

double dx = w/(double)n;

int t = 0;

for (int i = 0; i n1; i++)

for (int j = 0; j n1; j++){

vert[i][j][0] = dx*i - w2; vert[i][j][2] = dx*j - w2;

double mi = M[t++];

if (mi 0) mi = .01*Math.random();

vert[i][j][1] = w*mi - w2/2;}

Norm = new double[n1][n1][2][3]; Norm1z = new double[n1][n1][2];

iCol = new int[n][n][2];

for (int i = 0; i n; i++)

for (int j = 0; j n; j++){

double s =

((vert[i][j][1] + vert[i+1][j][1] + vert[i+1][j+1][1])/3 + w2/2)/w;

if (s .01) iCol[i][j][0] = 0;

else if (s+.1*Math.random() .35) iCol[i][j][0] = 3;

else if (s+.1*Math.random() .15) iCol[i][j][0] = 2;

else iCol[i][j][0] = 1;

s = ((vert[i][j][1] + vert[i][j+1][1] + vert[i+1][j+1][1])/3 + w2/2)/w;

if (s .01) iCol[i][j][1] = 0;

else if (s+.1*Math.random() .35) iCol[i][j][1] = 3;

else if (s+.1*Math.random() .15) iCol[i][j][1] = 2;

else iCol[i][j][1] = 1;

Norm[i][j][0][0] = vert[i][j][1] - vert[i+1][j][1];

Norm[i][j][0][1] = dx;

Norm[i][j][0][2] = vert[i+1][j][1] - vert[i+1][j+1][1];

double mod = Math.sqrt(Norm[i][j][0][0]*Norm[i][j][0][0] + Norm[i][j][0][1]*

Norm[i][j][0][1] + Norm[i][j][0][2]*Norm[i][j][0][2]) / 255.5;

Norm[i][j][0][0] /= mod; Norm[i][j][0][1] /= mod; Norm[i][j][0][2] /= mod;

Norm[i][j][1][0] = vert[i][j+1][1] - vert[i+1][j+1][1];

Norm[i][j][1][1] = dx;

Norm[i][j][1][2] = vert[i][j][1] - vert[i][j+1][1];

mod = Math.sqrt(Norm[i][j][1][0]*Norm[i][j][1][0] + Norm[i][j][1][1]*

Norm[i][j][1][1] + Norm[i][j][1][2]*Norm[i][j][1][2]) / 255.5;

Norm[i][j][1][0] /= mod; Norm[i][j][1][1] /= mod; Norm[i][j][1][2] /= mod;}

rotate();

}

public void iterate(){

int nc=n, Max=n1*n1, ncn1;

double Min=-1;

M = new double[Max];

for (int i=n+2; i n*n1-1; i++) M[i] = Min;

for (int i=2*n1; i n*n1; i += n1) M[i] = M[i-1] = 0;

while ( (nc /= 2) = 1){

ncn1 = nc*n1;

for (int j=ncn1; j Max; j += ncn1+ncn1){

for (int i= nc; i n; i += nc+nc){

if (M[i+j]==Min)

M[i+j] = (M[i+j+nc-ncn1] + M[i+j-nc+ncn1])/2.+R();

if (M[i+j+nc]==Min)

M[i+j+nc] = (M[i+j+nc+ncn1] + M[i+j+nc-ncn1])/2.+R();

if (M[i+j+ncn1]==Min)

M[i+j+ncn1] = (M[i+j-nc+ncn1] + M[i+j+nc+ncn1])/2.+R(); }}

rnd /= 2.;}

}

public void destroy() {

removeMouseListener(this);

removeMouseMotionListener(this);

}

public void mouseClicked(MouseEvent e){} // event handling

public void mousePressed(MouseEvent e) {

mx0 = e.getX(); my0 = e.getY();

if ( e.isControlDown() ){

setup();

repaint();}

if ( e.isAltDown() ){

if ( e.isShiftDown() ){ n /= 2; if (n 1) n = 1;}

else n *= 2;

setup();

repaint();}

e.consume();

}

public void mouseReleased(MouseEvent e){}

public void mouseEntered(MouseEvent e) {}

public void mouseExited(MouseEvent e) {}

public void mouseDragged(MouseEvent e) {

int x1 = e.getX(); int y1 = e.getY();

if ( e.isShiftDown() ) scale *= Math.exp(-(y1 - my0)/(double)w);

else fiX += dfi*(y1 - my0);

fiY += dfi*(x1 - mx0); mx0 = x1; my0 = y1;

rotate();

repaint();

e.consume();

}

public void rotate(){

double ct = Math.cos(fiX), cf = Math.cos(fiY),

st = Math.sin(fiX), sf = Math.sin(fiY),

m00 = scale*cf, m02 = scale*sf,

m10 = scale*st*sf, m11 = scale*ct, m12 = -scale*st*cf;

m20 = -ct*sf; m21 = st; m22 = ct*cf;

for (int i = 0; i n1; i++)

for (int j = 0; j n1; j++){

vert1[i][j][0] = m00*vert[i][j][0] + m02*vert[i][j][2];

vert1[i][j][1] = m10*vert[i][j][0] + m11*vert[i][j][1] + m12*vert[i][j][2];}

for (int i = 0; i n; i++)

for (int j = 0; j n; j++)

for (int k = 0; k 2; k++)

Norm1z[i][j][k] = m20*Norm[i][j][k][0] + m21*Norm[i][j][k][1] +

m22*Norm[i][j][k][2];

painted = false;

}

public void mouseMoved(MouseEvent e) {}

public void paint(Graphics g) {

if ( !painted ){

buffGraphics.clearRect(0, 0, w, h);

int ib=0, ie=n, sti=1, jb=0, je=n, stj=1;

if (m20 0){ ib = n; ie = -1; sti = -1;}

if (m22 0){ jb = n; je = -1; stj = -1;}

for (int i = ib; i != ie; i += sti)

for (int j = jb; j != je; j += stj){

if (Norm1z[i][j][0] 0){

xPol[0] = w2 + (int)vert1[i][j][0];

xPol[1] = w2 + (int)vert1[i+1][j][0];

xPol[2] = w2 + (int)vert1[i+1][j+1][0];

yPol[0] = h2 - (int)vert1[i][j][1];

yPol[1] = h2 - (int)vert1[i+1][j][1];

yPol[2] = h2 - (int)vert1[i+1][j+1][1];

buffGraphics.setColor(col[iCol[i][j][0]][(int)(Norm1z[i][j][0])]);

buffGraphics.fillPolygon(xPol,yPol, 3);}

if (Norm1z[i][j][1] 0){

xPol[0] = w2 + (int)vert1[i][j][0];

xPol[1] = w2 + (int)vert1[i][j+1][0];

xPol[2] = w2 + (int)vert1[i+1][j+1][0];

yPol[0] = h2 - (int)vert1[i][j][1];

yPol[1] = h2 - (int)vert1[i][j+1][1];

yPol[2] = h2 - (int)vert1[i+1][j+1][1];

buffGraphics.setColor(col[iCol[i][j][1]][(int)(Norm1z[i][j][1])]);

buffGraphics.fillPolygon(xPol,yPol, 3);} }

painted = true;}

g.drawImage(buffImage, 0, 0, this);

showStatus( "n=" + n);

}

public void update(Graphics g){ paint(g); }

}

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