五角星的程序手動編程怎麼編

⑴ cnc加工中心五角星怎麼編程

掌握五角星、凸輪等從造型到生成G代碼、工藝清單的整個過程。

例如；手編一個角，後面4個角以第一個程跑4次，每次G68旋轉72度。但必須要零點下刀。

補充：CNC是計算機數字控制機床(Computer numerical control)的簡稱，是一種由程序控制的自動化機床。該控制系統能夠邏輯地處理具有控制編碼或其他符號指令規定的程序，通過計算機將其解碼，從而使機床執行規定好了的動作，通過刀具切削將毛坯料加工成半成品成品零件。

⑵ 怎麼樣用C語言設計一個五角星，並寫出程序設計方案

設立一個for循環，用一個變數i控制行數，再用一個變數j控制每列印*和' '的個數，利用printf函數輸出字元串的強大控制功能實現。舉例代碼如下：
//#include "stdafx.h"//If the vc++6.0, with this line.
#include "stdio.h"
int main(void){
int i,j;
for(j=1,i=0;i<7;i++,i<4 ? j+=4 : j-=4)
printf("%*.*s\n",48+j/2,j,"* * * * * * *");
return 0;
}

⑶ 如何用java程序寫出五角星

第一種，用圖形

import java.awt.*;
import javax.swing.*;

public class WuJiaoXing extends JPanel {

private static final long serialVersionUID = 1L;

private JFrame frame = null;

private int r = 150; // 外頂點外接圓半徑

private int[] x = new int[5]; // 5個X外頂點坐標

private int[] y = new int[5]; // 5個Y外頂點坐標

private int[] x_ = new int[5]; // 5個X內頂點坐標

private int[] y_ = new int[5]; // 5個Y內頂點坐標

public WuJiaoXing() {
this.math();
frame = new JFrame("五角星");
frame.getContentPane().add(this);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(500,500);
frame.setLocation(200, 200);

frame.setVisible(true);
}

private void math() {
int c = 360 / 5; // 角度
for (int i = 0; i < 5; i++) {
x[i] = (int) (Math.cos(i * c * Math.PI / 30 - Math.PI / 2) * (r) + r);
y[i] = (int) (Math.sin(i * c * Math.PI / 30 - Math.PI / 2) * (r) + r);
}
int r_ = (int) (r * Math.sin(18 * Math.PI / 180) / Math
.sin(126 * Math.PI / 180)); // 內頂點外接圓半徑
for (int i = 0; i < 5; i++) {
x_[i] = (int) (Math.cos((i * c + 18) * Math.PI / 30 - Math.PI / 2)
* (r_) + r);
y_[i] = (int) (Math.sin((i * c + 18) * Math.PI / 30 - Math.PI / 2)
* (r_) + r);
}
}

public void paint(Graphics g) {
super.paint(g);
g.setColor(Color.YELLOW);
// g.setBackground(Color.RED);
// 填充
int[] x1 = { x[0], x[2], x_[2] };
int[] y1 = { y[0], y[2], y_[2] };
int[] x2 = { x[1], x[3], x_[3] };
int[] y2 = { y[1], y[3], y_[3] };
int[] x3 = { x[2], x[4], x_[4] };
int[] y3 = { y[2], y[4], y_[4] };
g.fillPolygon(x1, y1, 3);
g.fillPolygon(x2, y2, 3);
g.fillPolygon(x3, y3, 3);

// 描邊
// g.setColor(Color.BLACK);
// g.drawLine(x[0], y[0], x[2], y[2]);
// g.drawLine(x[0], y[0], x[3], y[3]);
// g.drawLine(x[1], y[1], x[3], y[3]);
// g.drawLine(x[1], y[1], x[4], y[4]);
// g.drawLine(x[2], y[2], x[4], y[4]);
// g.drawLine(x[2], y[2], x[0], y[0]);

}

public static void main(String[] args) {
new WuJiaoXing();
}
}

第二種，用控制台

class Pentagram {
private final char FILL_CHAR; // 填充字元
private final char SPACE_CHAR; // 空檔字元
private final int R; // 五角星的外接圓半徑
private final float ROTATION; // 五角星逆時針旋轉角度
private final int X; // 用於生成畫圖數組
private final int Y; // 用於生成畫圖數組

/**
* 構造一個Pentagram對象
*
* @param radius
* 五角星的半徑
* @param rotation
* 五角星的逆時針旋轉度數
* @param spaceChar
* 畫布上空白處填充字元
* @param fillChar
* 畫布上線條部分填充字元
*/
public Pentagram(int radius, float rotation, char spaceChar, char fillChar) {
this.R = radius;
this.ROTATION = rotation;
this.FILL_CHAR = fillChar;
this.SPACE_CHAR = spaceChar;
this.X = 2 * R + 1;
this.Y = 2 * R + 1;
}

public char[][] getPentagram() {
char[][] canvas = initCanvas();
Draw draw = new Draw(FILL_CHAR);
// 設五角星的最右邊的一個點為 A，逆時針選取點 B~E
// 通過圓的極坐標公式可以得出：
// 得出以下各點的坐標
// A 點坐標(0.951R, 0.309R)
// B 點坐標(0, R)
// C 點坐標(-0.951R, 0.309R)
// D 點坐標(-0.588R, -0.809R)
// E 點坐標(0.588R, -0.809R)

// 畫線段CA
draw.drawLine(mcos(162) * R, msin(162) * R, mcos(18) * R, msin(18) * R, canvas);
// 畫線段DA
draw.drawLine(mcos(234) * R, msin(234) * R, mcos(18) * R, msin(18) * R, canvas);
// 畫線段CE
draw.drawLine(mcos(162) * R, msin(162) * R, mcos(306) * R, msin(306) * R, canvas);
// 畫線段DB
draw.drawLine(mcos(234) * R, msin(234) * R, mcos(90) * R, msin(90) * R, canvas);
// 畫線段BE
draw.drawLine(mcos(90) * R, msin(90) * R, mcos(306) * R, msin(306) * R, canvas);
return canvas;
}

// 在方形的字元數組中指定兩點畫線條
// 對圖形數組進行初始化，填充空格
private char[][] initCanvas() {
char[][] canvas = new char[Y][X];
for (int i = 0; i < Y; i++) {
for (int j = 0; j < X; j++) {
canvas[i][j] = SPACE_CHAR;
}
}
return canvas;
}

// 根據角度求正弦值，保留兩位小數
private double msin(float a) {
return ((int) (Math.sin(Math.toRadians(a + ROTATION)) * 100)) / 100.0;
}

// 根據角度求餘弦值，保留兩位小數
private double mcos(float a) {
return ((int) (Math.cos(Math.toRadians(a + ROTATION)) * 100)) / 100.0;
}
}
class Draw {

private char fillChar;

public Draw(char fillChar) {
this.fillChar = fillChar;
}

/**
* 根據兩個點畫線在二維字元數組上畫線
*
* @param x1
* @param y1
* @param x2
* @param y2
* @param canvas
*/
public void drawLine(double x1, double y1, double x2, double y2, char[][] canvas) {
int radius = (canvas.length - 1) / 2;
// 從 x 方向進行填充
if (x1 > x2) {
double t = x1;
x1 = x2;
x2 = t;
t = y1;
y1 = y2;
y2 = t;
}

// 獲得直線方程的兩個系數
double a = (y1 - y2) / (x1 - x2);
double b = y1 - a * x1;

// 根據 x 方向的值求出 y 值，並填充圖形
for (int i = (int) Math.round(x1); i <= (int) Math.round(x2); i++) {
// 根據直線方程 y = ax + b，求 y
int y = (int) Math.round(a * i + b);

// 因為 y 和 i 算出來的結果有可能是負數，
// 為了採用數組來表示坐標，做了以下變換
// c[R][R] 即為坐標原點
// c[R][0..R] 為 x 方向的負半軸
// c[R][R+1..2*R] 為 x 方向的正半軸
// c[0..R][R] 為 y 方向的正半軸
// c[R+1..2*R][R] 為 y 方向的負半軸
int yy = radius - y;
int xx = radius + i;

yy = yy < 0 ? 0 : yy;
yy = yy > 2 * radius ? 2 * radius : yy;
xx = xx < 0 ? 0 : xx;
xx = xx > 2 * radius ? 2 * radius : xx;

canvas[yy][xx] = fillChar;
}

// 從 y 方向進行填充，便於減少間距問題產生的字元空檔
if (y1 > y2) {
double t = x1;
x1 = x2;
x2 = t;
t = y1;
y1 = y2;
y2 = t;
}

// 根據 y 方向的值求出 x 值，並填充圖形
for (int i = (int) Math.round(y1); i <= (int) Math.round(y2); i++) {
// 根據 x = (y - b) / a，求 x
int y = (int) Math.round((i - b) / a);

int yy = radius - i;
int xx = radius + y;

yy = yy < 0 ? 0 : yy;
yy = yy > 2 * radius ? 2 * radius : yy;
xx = xx < 0 ? 0 : xx;
xx = xx > 2 * radius ? 2 * radius : xx;

canvas[yy][xx] = fillChar;
}
}

/**
* 將畫完圖之後的畫布輸出到控制台上
*
* @param canvas
*/
public static void printCanvas(char[][] canvas) {
for (int i = 0; i < canvas.length; i++) {
for (int j = 0; j < canvas[i].length; j++) {
System.out.print(canvas[i][j]);
}
System.out.println();
}
}

}

public class Test {
public static void main(String[] args) {
// 畫一個半徑為10，旋轉為0，空白為全身空格，填充為★的五角星
Pentagram pen = new Pentagram(10, 0, ' ', '★');
// 在控制台上輸出這個五角星
Draw.printCanvas(pen.getPentagram());
}
}
註：其中Pentagram pen = new Pentagram(10, 0, ' ', '★');
10是半徑，0是旋轉度，' '是以空格表示空格,★是列印的字元。可以自己改

⑷ 用編程打出五角星

c++版本

#include<iostream>
using namespace std;
void main()
{
cout<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<"*"<<endl;
cout<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<"*"<<" "<<"*"<<endl;
cout<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<"*"<<" "<<" "<<" "<<"*"<<endl;
cout<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<"*"<<" "<<" "<<" "<<" "<<" "<<"*"<<endl;
cout<<"*"<<" "<<"*"<<" "<<"*"<<" "<<"*"<<" "<<"*"<<" "<<"*"<<" "<<"*"<<" "<<"*"<<" "<<"*"<<" "<<"*"<<" "<<"*"<<endl;
cout<<" "<<" "<<" "<<" "<<" "<<"*"<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<"*"<<endl;
cout<<" "<<" "<<" "<<" "<<"*"<<" "<<" "<<"*"<<" "<<" "<<" "<<" "<<" "<<"*"<<" "<<" "<<"*"<<endl;
cout<<" "<<" "<<" "<<"*"<<" "<<" "<<" "<<" "<<" "<<" "<<"*"<<" "<<" "<<" "<<" "<<" "<<" "<<"*"<<endl;
cout<<" "<<" "<<"*"<<" "<<" "<<" "<<" "<<" "<<"*"<<" "<<" "<<" "<<" "<<"*"<<" "<<" "<<" "<<" "<<"*"<<endl;
cout<<" "<<"*"<<" "<<" "<<"*"<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<"*"<<" "<<" "<<"*"<<endl;
cout<<"*"<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<" "<<"*"<<endl;
}

JAVA版本

import java.awt.*;
import javax.swing.*;

public class WuJiaoXing extends JPanel {

private static final long serialVersionUID = 1L;

private JFrame frame = null;

private int r = 150; // 外頂點外接圓半徑

private int[] x = new int[5]; // 5個X外頂點坐標

private int[] y = new int[5]; // 5個Y外頂點坐標

private int[] x_ = new int[5]; // 5個X內頂點坐標

private int[] y_ = new int[5]; // 5個Y內頂點坐標

public WuJiaoXing() {
this.math();
frame = new JFrame("五角星");
frame.getContentPane().add(this);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(500,500);
frame.setLocation(200, 200);

frame.setVisible(true);
}

private void math() {
int c = 360 / 5; // 角度
for (int i = 0; i < 5; i++) {
x[i] = (int) (Math.cos(i * c * Math.PI / 30 - Math.PI / 2) * (r) + r);
y[i] = (int) (Math.sin(i * c * Math.PI / 30 - Math.PI / 2) * (r) + r);
}
int r_ = (int) (r * Math.sin(18 * Math.PI / 180) / Math
.sin(126 * Math.PI / 180)); // 內頂點外接圓半徑
for (int i = 0; i < 5; i++) {
x_[i] = (int) (Math.cos((i * c + 18) * Math.PI / 30 - Math.PI / 2)
* (r_) + r);
y_[i] = (int) (Math.sin((i * c + 18) * Math.PI / 30 - Math.PI / 2)
* (r_) + r);
}
}

public void paint(Graphics g) {
super.paint(g);
g.setColor(Color.YELLOW);
// g.setBackground(Color.RED);
// 填充
int[] x1 = { x[0], x[2], x_[2] };
int[] y1 = { y[0], y[2], y_[2] };
int[] x2 = { x[1], x[3], x_[3] };
int[] y2 = { y[1], y[3], y_[3] };
int[] x3 = { x[2], x[4], x_[4] };
int[] y3 = { y[2], y[4], y_[4] };
g.fillPolygon(x1, y1, 3);
g.fillPolygon(x2, y2, 3);
g.fillPolygon(x3, y3, 3);

// 描邊
// g.setColor(Color.BLACK);
// g.drawLine(x[0], y[0], x[2], y[2]);
// g.drawLine(x[0], y[0], x[3], y[3]);
// g.drawLine(x[1], y[1], x[3], y[3]);
// g.drawLine(x[1], y[1], x[4], y[4]);
// g.drawLine(x[2], y[2], x[4], y[4]);
// g.drawLine(x[2], y[2], x[0], y[0]);

}

public static void main(String[] args) {
new WuJiaoXing();
}
}