超图iServer图层过滤渲染服务

使用iServer作为服务端，对已发出的超图rest服务如何做过滤展示，使用的是Vue

1、需要引入的依赖

  import {LayerStatus} from "@supermap/iclient-common/iServer/LayerStatus"
  import {SetLayerStatusService} from '@supermap/iclient-common/iServer/SetLayerStatusService'
  import {SetLayerStatusParameters} from '@supermap/iclient-common/iServer/SetLayerStatusParameters'

2、过滤方法

  　　/**
       * 图层过滤
       * @param _serviceUrl  超图REST服务地址
       * @param _layerName   要过滤的图层名字，一般叫  xxxx@xxxxx
       * @param _displayFilter  过滤条件  字符串类型 一般是比如'id>100 and (area >1000 or area <500)'
       */
      filterLayerContent(_serviceUrl, _layerName, _displayFilter) {
        let layerStatus = new LayerStatus({
          layerName: _layerName,
          displayFilter: _displayFilter
        })
        let setLayerStatusParameters = new SetLayerStatusParameters({
          layerStatusList: [layerStatus]
        })
        let setLayerStatusService = new SetLayerStatusService(_serviceUrl, {
          eventListeners: {
            "processCompleted": this.setLayerCompleted,
            "processFailed": this.setLayerFailed
          }
        })
        setLayerStatusService.processAsync(setLayerStatusParameters)
      },

      setLayerCompleted(_res) {
          let newSource = new TileSuperMapRest({
            url: this.templateBingdingInfo.service.url,
            wrapX: true,
            layersID: _res.result.newResourceID,
            tileGrid: createXYZ({extent: [-180, -90, 180, 90]})
          })
        ......
      },