export function drawLine (ctx, lineBegin, lineEnd, lineWidth = 2, lineColor = '#000') { if (!ctx || !lineBegin || !lineEnd) return ctx.beginPath() ctx.moveTo(...lineBegin) ctx.lineTo(...lineEnd) ctx.closePath() ctx.lineWidth = lineWidth ctx.strokeStyle = lineColor ctx.stroke() } const canvas = { drawLine } export default function (Vue) { Vue.prototype.canvas = canvas }