错误TypeError：无法读取未定义的属性“替换”

Question

Estoy intentando probar ArcGIS REST，带有512x512角度7的openlayers瓷砖，可以解决问题。

所有对象均发生错误core.js：9110错误TypeError：无法读取未定义的属性“ replace”     在sy.tileUrlFunction

int

ngOnInit() {
    this.map = new ol.Map({
      target: 'map',
      layers: [
        new ol.layer.Tile({
          source: new ol.source.XYZ({
            attributions: 'Copyright:© 2013 ESRI, i-cubed, GeoEye',
            maxZoom: 16,
            projection: 'EPSG:4326',
            tileSize: this.tileSize,
            tileUrlFunction: function(tileCoord) {
              return this.urlTemplate.replace('{z}', (tileCoord[0] - 1).toString())
                .replace('{x}', tileCoord[1].toString())
                .replace('{y}', (-tileCoord[2] - 1).toString());
            },
            wrapX: true
          })
        })
      ],
      view: new ol.View({
        center: [0, 0],
        projection: 'EPSG:4326',
        zoom: 2,
        minZoom: 2
      })
    });
  }

Answer 1

仅在ngOnInit中添加urlTemplate的声明

var url= 'https://services.arcgisonline.com/arcgis/rest/services/' +
    'ESRI_Imagery_World_2D/MapServer/tile/{z}/{y}/{x}';