'''
<template>
<view class="content">
<map class="map" id="map1" ref="map1" :scale="scale"></map>
<button class="button" @click="changeScale">放大缩小</button>
</view>
</template>
<script>
module.exports = {
data() {
return {
scale: 15.12345,
}
},
onLoad() {},
onReady() {
this.map = uni.createMapContext("map1", this);
},
methods: {
accAdd(arg1,arg2){
var r1,r2,m;
try{r1=arg1.toString().split(".")[1].length}catch(e){r1=0}
try{r2=arg2.toString().split(".")[1].length}catch(e){r2=0}
m=Math.pow(10,Math.max(r1,r2))
return (arg1m+arg2m)/m
},
changeScale() {
this.map.getScale({
success:res=> {
console.log('获取缩放值: ',res.scale);
this.scale = this.accAdd(res.scale,0.888);
console.log('查看计算后缩放值: ',this.scale);
}
})
setTimeout(()=>{
this.map.getScale({
success:res=> {
console.log('重新获取缩放值',res.scale);
}
})
},500)
},
}
}
</script>
<style>
.map{
height: 480; margin-bottom: 12;
}
.button {
margin-top: 5px; margin-bottom: 5px;
}
</style>
'''
