@jtopo/core / ShapeBuilder

Class: ShapeBuilder

几何形状生成器, 用于生成几何形状的顶点坐标

   // 生成一个10x10的网格
   let points = ShapeBuilder.grid(10, 10);
   console.log(points);

   // 生成一个圆环
   let circlePoints = ShapeBuilder.circle({ vertexCount: 10 });
   console.log(circlePoints);

   // 生成一个正多边形
   let polygonPoints = ShapeBuilder.polygon(5);
   console.log(polygonPoints);

   // 生成一个三角形
   let trianglePoints = ShapeBuilder.circle({ vertexCount: 3, beginAngle: 0, endAngle: Math.PI * 2 });
   console.log(trianglePoints);

Table of contents

Constructors

• constructor

Methods

• circle
• grid
• innerGrid
• polygon

Constructors

constructor

new ShapeBuilder()

Methods

circle

Static circle(opt): any[]

生成圆环点坐标

Parameters

Name	Type
opt	BuildCircleOpt

Returns

any[]

PointLike[] 顶点坐标集合

---

grid

Static grid(rows, cols): PointLike[]

生成二维网格坐标(外边框)数组

Parameters

Name	Type	Description
rows	number	行
cols	number	列

Returns

PointLike[]

PointLike[] 顶点坐标集合

---

innerGrid

Static innerGrid(rows, cols): PointLike[]

生成二维内网格坐标数组

Parameters

Name	Type	Description
rows	number	行
cols	number	列

Returns

PointLike[]

PointLike[] 顶点坐标集合

---

polygon

Static polygon(edgeCount): any[]

生成 正多边形 (最小为3边形，小于3边形时，按3边形处理)

Parameters

Name	Type	Description
edgeCount	number	边数

Returns

any[]

PointLike[] 顶点坐标集合