问题描述
加载带有卫星基础层的HERE地图时,有时会出现此错误:
Tangram [error]: Error for style group 'non-collision' for tile 13/16/15542/12554/15 Cannot read property 'retain' of undefined: TypeError: Cannot read property 'retain' of undefined
at https://js.api.here.com/v3/3.1/mapsjs-core.js:377:259708
at Array.forEach (<anonymous>)
at https://js.api.here.com/v3/3.1/mapsjs-core.js:377:259679
at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invoke (http://localhost:4200/polyfills.js:3508:26)
at Object.onInvoke (http://localhost:4200/vendor.js:64284:33)
at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invoke (http://localhost:4200/polyfills.js:3507:52)
at Zone.push../node_modules/zone.js/dist/zone.js.Zone.run (http://localhost:4200/polyfills.js:3267:43)
at http://localhost:4200/polyfills.js:4006:34
at ZoneDelegate.push../node_modules/zone.js/dist/zone.js.ZoneDelegate.invokeTask (http://localhost:4200/polyfills.js:3540:31)
at Object.onInvokeTask (http://localhost:4200/vendor.js:64275:33)
这会阻止一开始加载磁贴。 这并不是每次都会发生的。每10个页面中约有3个页面加载。如果平移或切换到defaultLayers.vetor.Norm.map Layer,它将开始正确加载磁贴。
我使用的是角度7.2.15,这里使用的是API 3.1。
我正在通过以下方式初始化映射:
const platform = new H.service.Platform({ apikey: apiKey });
const defaultLayers = platform.createDefaultLayers();
const map = new H.Map(
elementRef.nativeElement, // elementRef:ElementRef from directive constructor
defaultLayers.raster.satellite.map,
{
zoom: 15,
center: {lat: 0, lng:0}
}
);
const behavior = new H.mapevents.Behavior(new H.mapevents.MapEvents(map));
const ui = new H.ui.UI(map);
const zoomControl = new H.ui.ZoomControl();
ui.addControl('zoom', zoomControl);
如何在卫星视图中加载地图而不引发此错误?
推荐答案
该行为的一个可能问题可能是在加载网页后加载某些JS库。如果稍后在代码中添加卫星层会有更好的响应,请尝试。
// default map base layer
var map = new H.Map(document.getElementById('mapContainer'),
defaultLayers.vector.normal.map,{
center: {lat:52.5160, lng:13.3779},
zoom: 13
});
// set base layer later
map.setBaseLayer(defaultLayers.raster.satellite.map);