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@violets/shape

v1.1.4

Published

violet 图形计算基础

Readme

@violets/shape

1.安装

npm i @violets/shape --save

项目需安装shape图形基础库

2.类

顶级类 ShapeCreator ShapeCreator 提供图形构建,返回线条图形LineShape或面图形PolygonShape

ShapeCreator(points:点集合,type:图形类型,size:可选边数量):LineShape|PolygonShape

import {ShapeCreator } from "@violets/shape"
import { Feature, Map, MapBrowserEvent } from "ol";
export class Draw{

  Creator(){
    let shape= ShapeCreator(this.points,this.type,this.size);
    let feature= new Feature(shape);
    this.featureSource.addFeature(feature);
  }
}

LineShape 所有线条类型的基类,继承自 LineString

​ 依赖关系: ​ LineShape->LineString-> SimpleGeometry ->Geometry ​ LineShape->IShape

共有属性

| 属性名 | 类型 | 说明 | | :----: | :----------: | :--------: | | Points | Coordinate[] | 控制点集合 | | First | Coordinate | 首点 | | Last | Coordinate | 尾点 |

方法

| 方法名 | 参数 | 返回值 | 说明 | | :----: | :--: | :----: | :----: | | Generate | void | void | 生成图形 |

PolygonShape 所有线条类型的基类,继承自 LineString

​ 依赖关系: ​ PolygonShape->Polygon-> SimpleGeometry ->Geometry ​ PolygonShape->IShape

共有属性

| 属性名 | 类型 | 说明 | | :----: | :----------: | :--------: | | Points | Coordinate[] | 控制点集合 | | First | Coordinate | 首点 | | Last | Coordinate | 尾点 |

方法

| 方法名 | 参数 | 返回值 | 说明 | | :----: | :--: | :----: | :----: | | Generate | void | void | 生成图形 |

ShapeNames 提供图形静态名称与对应类型名