Pulses
Software drawing instruments can follow a rhythm or abide by rules independent of drawn gestures. This is a form of collaborative drawing in which the draftsperson controls some aspects of the image and the software controls others.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
let angle = 0;
function setup() {
createCanvas(710, 400);
background(102);
noStroke();
fill(0, 102);
}
function draw() {
// Draw only when mouse is pressed
if (mouseIsPressed === true) {
angle += 5;
let val = cos(radians(angle)) * 12.0;
for (let a = 0; a < 360; a += 75) {
let xoff = cos(radians(a)) * val;
let yoff = sin(radians(a)) * val;
fill(0);
ellipse(mouseX + xoff, mouseY + yoff, val, val);
}
fill(255);
ellipse(mouseX, mouseY, 2, 2);
}
}
