Vue+Openlayer中使用select选择要素的实现代码
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2022-09-02 20:07:59
效果图：实现代码：
效果图：
实现代码：
<template>
<div id="map" ref="map" style="width: 100vw; height: 100vh"></div>
</template>
<script>
import "ol/ol.css";
import { map, view } from "ol";
import { osm, vector as vectorsource } from "ol/source";
import { vector as vectorlayer, tile as tilelayer } from "ol/layer";
import geojson from "ol/format/geojson";
import select from "ol/interaction/select";
import { altkeyonly, click, pointermove } from "ol/events/condition";
export default {
name: "gif",
data() {
return {
map: {},
layer: {},
geojsondata: {
type: "featurecollection",
features: [
{
type: "feature",
properties: {
title: "警报1",
},
geometry: {
type: "point",
coordinates: [91.48879670091165, 37.83814884701121],
},
},
{
type: "feature",
properties: {
title: "警报2",
},
geometry: {
type: "point",
coordinates: [99.19515576149941, 26.713646654711134],
},
},
{
type: "feature",
properties: {
title: "警报3",
},
geometry: {
type: "point",
coordinates: [123.74363825288785, 44.363694825734726],
},
},
],
},
select: {},
};
},
mounted() {
this.initmap();
},
methods: {
// 初始化地图
initmap() {
this.layer = new vectorlayer({
source: new vectorsource({
features: new geojson().readfeatures(this.geojsondata),
}),
});
this.map = new map({
target: "map",
layers: [
new tilelayer({
source: new osm(),
}),
this.layer,
],
view: new view({
projection: "epsg:4326",
center: [104.912777, 34.730746],
zoom: 4.5,
}),
});
this.select = new select({
condition: click, //单击选择
});
this.map.addinteraction(this.select);
this.select.on("select", (e) => {
let coordinate = e.mapbrowserevent.coordinate; //获取选择的坐标
let properties = e.selected[0].getproperties(); //获取当前要素的所有属性
});
// 设置鼠标划过矢量要素的样式
this.map.on("pointermove", (e) => {
const ishover = this.map.hasfeatureatpixel(e.pixel);
this.map.gettargetelement().style.cursor = ishover ? "pointer" : "";
});
},
},
};
</script>
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