我正在使用Angular(6)中的OpenLayers(4.6.5)编写地图。我有一个mat-button包含一个包含两个复选框的map菜单。我想通过选中复选框来显示或隐藏某些特定标记。每个复选框都显示出某种类型的标记。当我点击一个标记时,我想要显示一个带有信息的弹出窗口(在GeoJSON文件中,每种类型的标记都有一个)。
我在一个简单的HTML文件中有一个完整的功能代码,现在我想用Angular做同样的事情,复选框是funtionnal但是当我点击一个标记时我有一个forEachFeatureAtPixel错误(如果我点击地图上的任何地方我有一个onclick错误(来自closer.onclick函数))
app.component.ts:
import { Component, OnInit } from '@angular/core';
import OlMap from 'ol/map';
import OlWMS from 'ol/source/tilewms';
import OlTileLayer from 'ol/layer/tile';
import OlView from 'ol/view';
import VectorLayer from 'ol/layer/vector';
import VectorSource from 'ol/source/vector';
import Point from 'ol/geom/point';
import Style from 'ol/style/style';
import IconStyle from 'ol/style/icon';
import WFS from 'ol/format/wfs';
import GeoJSON from 'ol/format/geojson';
import Overlay from 'ol/overlay';
import feature from 'ol/feature';
import OlSwitch from 'ol-layerswitcher';
import Group from 'ol/layer/group';
import $ from 'jquery';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {
map: OlMap;
gny_bright: OlWMS;
gny_bright_mobile: OlWMS;
wms_gnybrightl93: OlWMS;
wms_gnybrightl93mobile: OlWMS;
wms_gnybrightgrey: OlWMS;
wms_gnybrightgreyl93: OlWMS;
wms_gnyorthol93: OlWMS;
wms_gnyorthol93_mobile: OlWMS;
wms_pistes_c: OlWMS;
layer: OlTileLayer;
view: OlView;
layerSwitcher: OlSwitch;
WFS: WFS;
vectorLayer_parking: VectorLayer;
vectorLayer_piscine: VectorLayer;
parkingLayer: VectorSource;
piscineLayer: VectorSource;
piscine: Style;
markers: feature;
popup: Overlay;
constructor() {
}
handleSelected1($event) {
if($event.target.checked === true) {
this.map.addControl(this.vectorLayer_piscine);
this.vectorLayer_piscine.setStyle(this.piscine);
this.map.addOverlay(this.popup);
} else {
this.map.removeControl(this.vectorLayer_piscine);
this.map.removeOverlay(this.popup);
}
}
handleSelected2($event) {
if($event.target.checked === true) {
this.map.addControl(this.vectorLayer_parking);
this.vectorLayer_parking.setStyle(this.markers);
this.map.addOverlay(this.popup);
} else {
this.map.removeControl(this.vectorLayer_parking);
this.map.removeOverlay(this.popup);
}
}
ngOnInit() {
{...}
//popup
var element = document.getElementById('popup');
this.popup = new Overlay({
element: element,
autoPan: true,
offset: [0, -30]
});
//Fonction d'affichage des popups
var content_element = document.getElementById('popup-content');
this.map.on('click', function(evt){
var closer = document.getElementById('popup-closer');
closer.onclick = () => {
this.popup.setPosition(undefined);
closer.blur();
return false;
};
console.log(this.popup);
var feature = this.map.forEachFeatureAtPixel(evt.pixel,
function(feature) {
return feature;
});
if (feature) {
var geometry = feature.getGeometry();
var coord = geometry.getCoordinates();
if(feature.get('name') != null) {
var content = '<center><h2>' + feature.get('name') + '</h2></center>' + '<br>';
} else {
var content = '<center><h2>' + feature.get('NOM') + '</h2></center>' + '<br>';
}
if(feature.get('addr:street') != null) {
content += '<h5>' + '<i>Adresse : </i>' + feature.get('addr:street') + '</h5>';
} else if(feature.get('ADRESSE') != null) {
content += '<h5>' + '<i>Adresse : </i>' + feature.get('ADRESSE') + '</h5>';
} else {
null;
}
if(feature.get('phone') != null) {
content += '<h5>' + '<i>Numéro de téléphone : </i>' + feature.get('phone') + '</h5>';
}
if(feature.get('website') != null) {
content += '<h5>' + '<i>Site internet : </i>' + '</h5>' + '<p>' + feature.get('website') + '</p>';
}
if(feature.get('CAPACITE')!=null) {
content += '<h5>' + '<i>Capacité : </i>' + feature.get('CAPACITE') + '</h5>';
}
if(feature.get('PLACES')!=null) {
content += '<h5>' + '<i>Places disponibles : </i>' + feature.get('PLACES') + '<h5>';
}
content_element = document.getElementById('popup-content');
content_element.innerHTML = content;
this.popup.setPosition(coord);
}
});
this.map.on('pointermove', (e) => {
if (e.dragging) {
return;
};
var pixel = this.map.getEventPixel(e.originalEvent);
var hit = this.map.hasFeatureAtPixel(pixel);
this.map.getViewport().style.cursor = hit ? 'pointer' : '';
});
}
}
我在'this.popup'上放了一个console.log,以便知道问题所在,因为我收到了'undefined'... 我创建了一个弹出的当前对象,以便在我的handleSelected函数中访问弹出窗口,但这不再起作用了......
你有什么想法吗?