16 lines
319 B
JavaScript
16 lines
319 B
JavaScript
|
import {sqrt} from "../math.js";
|
||
|
|
|
||
|
|
const sqrt3 = sqrt(3);
|
||
|
|
|
||
|
|
export default {
|
||
|
|
draw(context, size) {
|
||
|
|
const s = sqrt(size) * 0.6824;
|
||
|
|
const t = s / 2;
|
||
|
|
const u = (s * sqrt3) / 2; // cos(Math.PI / 6)
|
||
|
|
context.moveTo(0, -s);
|
||
|
|
context.lineTo(u, t);
|
||
|
|
context.lineTo(-u, t);
|
||
|
|
context.closePath();
|
||
|
|
}
|
||
|
|
};
|