According to the actual demand of setting out of center pag, two methods on computing the center line coordinate in curve are advanced. 從線路放樣的實際需要出發(fā)，提出了計算線路曲線段中樁測量坐標的切線坐標變換法和圓心坐標變換法兩種計算方法。
This essay introduces a way and designing process of calculating any point coordinate and fixed long point coordinate on circular curve with curve radius. 介紹一種利用曲線半徑計算圓曲線上任意點坐標和圓曲線上定長點坐標的方法以及具體測設(shè)過程。
There is also a similar quadraticCurveTo(cpx, cpy, x, y) method that takes a coordinate and a curve control point coordinate, but otherwise behaves similarly to lineTo(). 還有一個類似的 quadraticCurveTo(cpx, cpy, x, y) 方法，該方法以一個坐標和一個曲線控制點坐標為參數(shù)，但是其行為類似于 lineTo()。