使用 div 自定义 icon 的样式
使用 DivIcon 可以更加灵活的自定义 icon 样式。
但大批量使用 DivIcon 可能会导致性能问题,所以需要在使用时注意。
示例
代码实现
vue
<script setup>
import { ref, defineAsyncComponent } from 'vue';
const InitMap = defineAsyncComponent(() =>
import('../../components/InitMapTianditu.vue')
);
const mapObj = ref();
// 单个 marker 创建
const marker = ref();
const createMarker = () => {
if (marker.value) {
mapObj.value.removeLayer(marker.value);
marker.value = null;
}
// 创建一个 marker
const customIcon = L.divIcon({
className: 'custom-marker-style',
html: `<div class="name">自定义 Icon</div><div class="icon"></div>`,
iconSize: [141, 102.6]
});
marker.value = L.marker([32.0237855, 118.8075675], {
riseOnHover: true,
icon: customIcon
}).addTo(mapObj.value);
// 为 marker 绑定 popup
marker.value.bindPopup('<b>Hello world!</b><br />这是默认 marker 绑定的 Popup', {offset: [0, -40]});
// 为 marker 绑定点击事件
marker.value.on('click', (e) => {
console.log('默认 marker 触发点击事件', e);
});
};
const mapLoad = (map) => {
mapObj.value = map;
createMarker();
};
</script>
<template>
<init-map @map-load="mapLoad"></init-map>
</template>
<style lang="scss">
.custom-marker-style {
display: flex !important;
flex-direction: column;
justify-content: center;
align-items: center;
.name {
width: 141px;
height: 52.5px;
line-height:40px;
font-size: 18px;
font-weight: 500;
color: #fff;
text-align: center;
background: url('../../public/markerCustom/top-bg.png') no-repeat center;
background-size: 100% 100%;
}
.icon {
width: 38px;
height: 49.13px;
background: url('../../public/markerCustom/icon.png') no-repeat center;
background-size: 100% 100%;
}
}
</style>
vue
<script setup>
import { onMounted, onUnmounted, ref } from 'vue';
import L from 'leaflet';
const props = defineProps({
center: {
type: Array,
default: [32.0237855, 118.8075675]
}
})
const emit = defineEmits(['mapLoad']);
const mapRef = ref();
const initMap = () => {
const map = L.map(mapRef.value, {
center: props.center,
zoom: 11,
minZoom: 1,
maxZoom: 18
});
const mapType = 'vec';
L.tileLayer(
'https://t{s}.tianditu.gov.cn/' +
mapType +
'_w/wmts?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=' +
mapType +
'&STYLE=default&TILEMATRIXSET=w&FORMAT=tiles&TILECOL={x}&TILEROW={y}&TILEMATRIX={z}&tk=b72aa81ac2b3cae941d1eb213499e15e',
{
subdomains: ['0', '1', '2', '3', '4', '5', '6', '7'],
attribution:
'© <a href="http://lbs.tianditu.gov.cn/home.html">天地图 GS(2022)3124号 - 甲测资字1100471</a>'
}
).addTo(map);
const mapLabelType = 'cva';
L.tileLayer(
'https://t{s}.tianditu.gov.cn/' +
mapLabelType +
'_w/wmts?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=' +
mapLabelType +
'&STYLE=default&TILEMATRIXSET=w&FORMAT=tiles&TILECOL={x}&TILEROW={y}&TILEMATRIX={z}&tk=b72aa81ac2b3cae941d1eb213499e15e',
{
subdomains: ['0', '1', '2', '3', '4', '5', '6', '7']
}
).addTo(map);
// 地图初始化完成发送事件
emit('mapLoad', map);
return map;
};
const mapObj = ref();
// 在 onMounted 中初始化地图
onMounted(() => {
mapObj.value = initMap();
});
const removeMap = () => {
if (mapObj.value) {
mapObj.value.remove();
}
};
// 在组件卸载时删除地图
onUnmounted(() => {
removeMap();
});
</script>
<template>
<div ref="mapRef" class="map"></div>
</template>
<style scoped>
.map {
height: 40vh;
z-index: 0;
}
</style>