円運動 (2024/10/29)

https://scrapbox.io/files/6720ec7b3dfa604d9771c786.mp4

code:processing

//#Processing

float i, j, k, r, t;

void setup() {

size(800, 800, P3D);

}

void draw() {

background(0);

camera(0, 0, 300, 500, 500, 0, 0, 0, -1);

for (j=0; j<800; j+=200)for (i=0; i<800; i+=200)for (k=9; k<150; k+=9) {

stroke(-1, 128*cos(t*99)+128);

noFill();

circle(i+99, j+99, k*2);

fill(-1);

for (r=0; r<TAU; r+=PI/2)circle(i+99+k*sin(r+t*k), j+99+k*cos(r+t*k), 6);

}

t+=.0001;

}