function GridAnalysis(option) {
  this.gridView = []// 网格
  this.textView = []//文本
  this.opacity = 0.8//图形默认透明度
}

GridAnalysis.prototype = {
  /**
   * 绘制网格
   * @param points 网格线段坐标点组
   */
  drawGrid: function (points) {
    this.gridView = [];
    points.forEach((p) => {
      let line = MapUtil.parse2LngLat(p);
      var polyline = new AMap.Polyline({
        path: line,
        strokeStyle: 'solid',
        isOutline: false,
        borderWeight: 0,
        outlineColor: 'white',
        strokeWeight: 2, // 线条宽度，默认为 1
        strokeColor: '#CC0000', // 线条颜色
        lineJoin: 'round', // 折线拐点连接处样式
        showDir: true,
      });
      this.gridView.push(polyline);
    });
    MapUtil._map.add(this.gridView);
  },

  /**
   * 绘制网格风险图
   * @param {*} points
   */
  drawRectangle: function (points) {
    var that = this
    this.clear()

    var gpsList = []
    points.forEach((p) => {
      gpsList.push(p.lb, p.rt, p.c)
    })
    MapUtil.convertFromGPS(gpsList, function (gd) {
      for (let i = 0; i < points.length; i++) {
        const p = points[i];
        var lb = gd[i * 3]
        var rt = gd[i * 3 + 1]
        var c = gd[i * 3 + 2]

        var color = '#990D0D';
        switch (p.level) {
          case 0:
            color = '#990D0D';
            break;
          case 1:
            color = '#DBB70D';
            break;
          case 2:
            color = '#0DE707';
            break;
          default:
            color = '#0DE707';
            break;
        }

        let pList = MapUtil.parse2LngLat([lb, rt]);
        var bounds = new AMap.Bounds(...pList);
        var rectangle = new AMap.Rectangle({
          bounds: bounds,
          // strokeColor: '#ffffffff',
          strokeWeight: 0,
          strokeOpacity: 0,
          // strokeStyle还支持 solid
          strokeStyle: 'solid',
          fillColor: color,
          fillOpacity: that.opacity,
          cursor: 'pointer',
          zIndex: 50,
        });

        var text = new AMap.Text({
          text: p.value,
          anchor: 'center', // 设置文本标记锚点
          draggable: false,
          style: {
            'background-color': 'transparent',
            'border-width': 0,
            'text-align': 'center',
            'font-size': '12px',
            'color': 'white'
          },
          position: c
        });
        that.gridView.push(rectangle);
        that.textView.push(text);
      }
      MapUtil._map.add(that.gridView);
      that.toggleText(that.show)
    })
  },
  
  /**
   * 调整图形透明度
   * @param show 图形透明度调整
   */
  changeOpacity (show) {
    
    if (show) {
      this.opacity = 0.8
    } else {
      this.opacity = 0.3
    }
    this.gridView.forEach(g => {
      g.setOptions({
        fillOpacity: this.opacity,
      })
    });
  },

  /**
   * 切换文本显示
   */
  toggleText (show) {
    if (show) {
      this.show = true
      MapUtil._map.add(this.textView);
    } else {
      this.show = false
      MapUtil.removeViews(this.textView);
    }
  },

  clear() {
    MapUtil.removeViews(this.gridView);
    MapUtil.removeViews(this.textView);
    this.gridView = [];
    this.textView = [];
  },
};