在纸张Js中使用线点找到角度和长度,以及如何使用这些矢量值找到线条的矢量值我们找到角度,但在这里我遇到了一些问题。
答案 0 :(得分:1)
我知道这是一个古老的问题,但是您可以:
import { Choice } from './choice.model';
export class DisplayView {
id: number;
title: string;
type: string;
public isFirst: boolean;
public choices: Choice[];
constructor(values: Object = {}) {
Object.assign(this, values);
}
}
答案 1 :(得分:-2)
var pathforward=new paper.Path({strokeColor:"red",strokeWidth:2}); var point = pathforward.getPointAt(pathforward.length);
var vector = point.subtract(pathforward.getPointAt(pathforward.length-25));
var x1 = pathforward.segments[0].point.x;
var y1 = pathforward.segments[0].point.y;
var x2 = pathforward.segments[1].point.x;
var y2 = pathforward.segments[1].point.y;
var m =(y2-y1) / (x2-x1);
var angleDeg = Math.floor(Math.atan2(y2-y1, x2 -x1) * 180 / Math.PI);
alert( angleDeg + '\xb0');