Question

获取当前位置但未显示标记图像（locationStyle）

目前在页面加载或地图更改时获取当前位置。如何从外部按钮或链接点击获取当前位置

    var locationCircle = new ol.Feature();
    currentLocation = new ol.layer.Vector({
      source: new ol.source.Vector({
            features: [locationCircle]
          })
    });
    var locationStyle = new ol.style.Style({
      image: new ol.style.Icon(/** @type {olx.style.IconOptions} */ ({
        anchor: [0.5, 46],
        anchorXUnits: 'fraction',
        anchorYUnits: 'pixels',
        opacity: 0.75,
        src: 'resources/icon.png'
      }))
    });

    map = new ol.Map({
                  target: target,
                  layers: [bingMapsRoad, circleLayer,vector,vehicleVector,currentLocation],
                    // renderer: 'canvas',
                    view: new ol.View({
                     // center: ol.proj.transform([-0.12755, 51.507222], 'EPSG:27700', 'EPSG:3857'),
                    //center: [-10807016, 5029327],
                     // projection: 'EPSG:27700',
                        // resolutions: ResolutionsInfo,
                        center: ol.proj.transform([-0.12755, 51.507222], 'EPSG:4326', 'EPSG:3857'),
                        loadTilesWhileAnimating: true,
                        loadTilesWhileInteracting: true,
                        zoom: 6
                      }),
                    controls: ol.control.defaults({ attribution: false }),
                    loadTilesWhileInteracting: true
                  });   

new ol.Geolocation({
        projection: map.getView().getProjection(),
        tracking: true,
        trackingOptions: {
          enableHighAccuracy: true
        }
      })
      .on('change', function() {
        var position = this.getPosition();
        var speed = this.getSpeed();
        var altitude = this.getAltitude();
        var heading = this.getHeading();

        map.getView().setCenter(position);

        locationCircle.setGeometry(
          new ol.geom.Circle(position, 20)
        );
      });

Answer 1

你可以用它代替它：

geolocation.setProjection(map.getView().getProjection);

函数bindTo没有出现在最新的API文档中

如何从外部按钮或链接获取当前位置单击GeoLocation Openlayers3

1 个答案: