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| import { Point } from '../classes/index';
|
| export function drawContour(
| ctx: CanvasRenderingContext2D,
| points: Point[],
| isClosed = false,
| ) {
| ctx.beginPath();
|
| points.slice(1).forEach(({ x, y }, prevIdx) => {
| const from = points[prevIdx];
| ctx.moveTo(from.x, from.y);
| ctx.lineTo(x, y);
| });
|
| if (isClosed) {
| const from = points[points.length - 1];
| const to = points[0];
| if (!from || !to) {
| return;
| }
|
| ctx.moveTo(from.x, from.y);
| ctx.lineTo(to.x, to.y);
| }
|
| ctx.stroke();
| }
|
|
