已采納回答 / 窗景
function calcDistance(loc1, loc2) {? ?return Math.sqrt((loc1.x - loc2.x) * (loc1.x - loc2) + (loc1.x + loc2.x) * (loc1.x + loc2))}應(yīng)改為:function calcDistance(loc1, loc2) {? ?return Math.sqrt((loc1.x - loc2.x) * (loc1.x - loc2.x) + (loc1.y - loc2.y) * (loc1....
2016-01-10
虛線 我剛一開始想就是 for循環(huán) moveTo 和LineTo 然后google下 基本上都是這個(gè)思路
不過
https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/setLineDash
已經(jīng)有新的方法啦~~
不過
https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/setLineDash
已經(jīng)有新的方法啦~~
2016-01-08