uniapp中的map原生组件,不是高德地图组件,如何定位至范围
时间: 2024-02-21 11:59:01 浏览: 102
如果在uniapp中使用原生的map组件,可以通过以下步骤实现定位到地图的某个范围:
1. 在template中添加map组件
```html
<template>
<view>
<map :id="mapId" :covers="covers"></map>
</view>
</template>
```
2. 在script中定义地图的 covers 和 mapId 属性
```javascript
export default {
data() {
return {
mapId: 'map',
covers: []
}
},
mounted() {
// 在 mounted 生命周期中获取地理信息
this.getLocation()
},
methods: {
getLocation() {
uni.getLocation({
type: 'gcj02', // 使用国测局坐标系
success: (res) => {
this.center = {
latitude: res.latitude,
longitude: res.longitude
}
this.getRange()
}
})
},
getRange() {
// 根据当前位置获取周围的经纬度范围
const range = 0.01
const latitude = this.center.latitude
const longitude = this.center.longitude
const maxLat = latitude + range
const minLat = latitude - range
const maxLng = longitude + range
const minLng = longitude - range
// 更新 covers 属性,显示地图上的矩形覆盖物
this.covers = [
{
id: 1,
latitude: maxLat,
longitude: maxLng,
color: '#FF0000',
fillColor: '#7cb5ec88',
width: 5,
height: 5,
zIndex: 99999
},
{
id: 2,
latitude: maxLat,
longitude: minLng,
color: '#FF0000',
fillColor: '#7cb5ec88',
width: 5,
height: 5,
zIndex: 99999
},
{
id: 3,
latitude: minLat,
longitude: minLng,
color: '#FF0000',
fillColor: '#7cb5ec88',
width: 5,
height: 5,
zIndex: 99999
},
{
id: 4,
latitude: minLat,
longitude: maxLng,
color: '#FF0000',
fillColor: '#7cb5ec88',
width: 5,
height: 5,
zIndex: 99999
}
]
}
}
}
```
在以上代码中,首先在mounted生命周期中通过uni.getLocation获取当前位置的经纬度信息,然后根据经纬度信息计算出周围的经纬度范围。最后更新covers属性,显示地图上的矩形覆盖物。
3. 在css中设置map组件的高度
```css
page {
height: 100%;
}
map {
height: 100%;
width: 100%;
}
```
在以上代码中,设置map组件的高度为100%。
这样就可以在uniapp中使用原生的map组件,实现定位到地图的某个范围。
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