# MapGIS Client for JavaScript API

Cesium MapboxGL Leaflet OpenLayers
API文档

    import { extend, returnPoint } from '../../util'
    import Zondy from '../Zondy'
    import ArcGisGeometry from './Geometry'
    import ArcGisPoint from './Point'

    /**
     * @class module:ArcGis.ArcGisMultipoint
     * @description ArcGis服务
     * @author 基础平台-杨琨
     * @param options - {Object} 必选项，构造点对象参数。
     * @param {String} [options.points] 可选项。点坐标数组，
     * Example：[[x1,y1],[x2,y2]]。
     * @param {ArcGisSpatialReference} [options.spatialReference] 可选项。多边形的空间坐标系，默认4326。
     */
    class ArcGisMultipoint extends ArcGisGeometry {
      constructor(options) {
        super(options)
        this.points = []
        this.type = 'multipoint'
        extend(this, options)
      }
    }

    /**
     * @function module:ArcGis.ArcGisMultipoint.prototype.addPoint
     * @description 添加点坐标，可以为[x,y]坐标或者ArcGisPoint对象
     * @param point - {ArcGisPoint} 必选项，要查询的多边形序号，可为点坐标数组或者坐标或者ArcGisPoint对象数组。
     */
    ArcGisMultipoint.prototype.addPoint = function (point) {
      if (point instanceof Array) {
        this.points.push(point)
      } else if (point instanceof ArcGisPoint) {
        this.points.push([point.x, point.y])
      }
    }

    /**
     * @function module:ArcGis.ArcGisMultipoint.prototype.getPoint
     * @description 根据index返回ArcGisPoint对象
     * @param index - {Number} 必选项，要查询的点序号。
     * @returns ArcGisPoint，点对象
     */
    ArcGisMultipoint.prototype.getPoint = function (index) {
      return returnPoint(ArcGisPoint, this, this.points[index])
    }

    /**
     * @function module:ArcGis.ArcGisMultipoint.prototype.removePoint
     * @description 根据index删除一个ArcGisPoint对象
     * @param index - {Number} 必选项，要查询的点序号。
     * @returns ArcGisPoint，点对象
     */
    ArcGisMultipoint.prototype.removePoint = function (index) {
      const positionArr = this.points.splice(index, 1)
      return returnPoint(ArcGisPoint, this, positionArr)
    }

    /**
     * @function module:ArcGis.ArcGisMultipoint.prototype.setPoint
     * @description 根据index，更新一个点对象
     * @param index - {Number} 必选项，在pointIndex处，更新这个点。
     * @returns ArcGisMultipoint，线对象
     */
    ArcGisMultipoint.prototype.setPoint = function (index, point) {
      if (index >= this.points.length) return null
      if (point instanceof Array) {
        this.points[index] = [point[0], point[1]]
      } else if (point instanceof ArcGisPoint) {
        this.points[index] = [point.x, point.y]
      }
      return this
    }

    /**
     * @function module:ArcGis.ArcGisMultipoint.prototype.toGeometryJSON
     * @description 将点坐标转换为Json对象
     * @returns String
     */
    ArcGisMultipoint.prototype.toGeometryJSON = function () {
      return `{"points":[[${this.points.join('],[')}]]}`
    }

    export default ArcGisMultipoint
    Zondy.Service.ArcGisMultipoint = ArcGisMultipoint

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