有人知道怎么用processing做一个五角星吗

加QQ群478590904 一起交流学习

先画外边的，再画里边的

或者nofill strokeWeight(10)画一个个圆环数字决定环的宽度

background(100);
fill(255,0,0);
ellipse(width/2,height/2,width,height);
fill(255,255,255);
ellipse(width/2,height/2,width-10,height-10);
fill(255,0,0);
ellipse(width/2,height/2,width-20,height-20);
fill(100);
ellipse(width/2,height/2,width-30,height-30);
fill(255);
beginShape();
vertex(width/2,15);
vertex(width/2-15,40);
vertex(width/2-30,40);
vertex(width/2-10,60);
vertex(width/2-15,80);
vertex(width/2,55);
vertex(width/2+15,80);
vertex(width/2+10,60);
vertex(width/2+30,40);
vertex(width/2+15,40);//坐标自己调
endShape(CLOSE);

void setup() {
size(640, 360);}
void draw() {
background(102);
pushMatrix();
translate(width*0.2, height*0.5);
rotate(frameCount / 200.0);
star(0, 0, 5, 70, 5);
popMatrix();
}
void star(float x, float y, float radius1, float radius2, int npoints) {
float angle = TWO_PI / npoints;
float halfAngle = angle/2.0;
beginShape();
for (float a = 0; a < TWO_PI; a += angle) {
float sx = x + cos(a) * radius2;
float sy = y + sin(a) * radius2;
vertex(sx, sy);
sx = x + cos(a+halfAngle) * radius1;
sy = y + sin(a+halfAngle) * radius1;
vertex(sx, sy);
}
endShape(CLOSE);
}

看到题目，我还以为你是要画国旗，结果你特么告诉我你要画美国队长的logo；
我来教你画国旗好了
int [] n={1,3,5,7,9,11};
float [] m;
float [] z;
void setup(){
colorMode(HSB,360,100,100);
//HSB红黄绿青蓝紫
//fullScreen();
size(500,500);
background(360,100,100);
//translate(250,250);
}
void draw(){
if(mousePressed==true){
translate(mouseX,mouseY);
scale(0.3333);}else{
translate(width/2,height/2);
}
m = new float[6];
z = new float[6];
fill(60,100,100);
strokeWeight(3);
noStroke();
beginShape();
for (int i=0;i<n.length;i++){
rotate(-PI/10);
m [i]=map(sin(0.4*n[i]*PI),-1.0,1.0,-100.0,100.0);
z [i]=map(cos(0.4*n[i]*PI),-1.0,1.0,-100.0,100.0);
vertex(m[i],z[i]);
} endShape(CLOSE);
}

1

都不错