npm i echarts @amap/amap-jsapi-loader
<!-- 地图容器 -->
<div id="mapContainer">
</div>
...
mounted() {
this.initMap()
},
methods: {
/**
* @description: 初始化地图
*/
initMap() {
// TODO 之后nginx配置
// 安全密钥使用 https://lbs.amap.com/api/javascript-api-v2/guide/abc/jscode
// 明文方式
window._AMapSecurityConfig = {
securityJsCode: '「您申请的安全密钥」'
}
// JS API 结合 Vue 使用
AMapLoader.load({
key:"", // 申请好的Web端开发者Key，首次调用 load 时必填
version:"1.4.15", // 指定要加载的 JSAPI 的版本，缺省时默认为 1.4.15
plugins:['Map3D', 'AMap.DistrictLayer', 'AMap.DistrictSearch'], // 需要使用的的插件列表，
// AMap.DistrictLayer 插件只适用于版本1.4.15，所以我这边的版本选择的1.4.15
// 插件列表 https://lbs.amap.com/api/javascript-api/guide/abc/plugins#plugins
}).then((AMap)=>{
const _this = this
// 初始化地图
this.map = new AMap.Map('mapContainer', {
zoom: 7, // 缩放等级
viewMode: '3D', // 默认为‘2D’，可选’3D’
pitch: 55, // 俯仰角度，默认0，[0,83]，2D地图下无效 。
pitchEnable: true, // 是否允许设置俯仰角度，3D视图下为true，2D视图下无效。
skyColor: 'rgba(10, 35, 93, 1)' // 天空颜色
})
// 3D实例
const object3DLayer = new AMap.Object3DLayer({ zIndex: 1 })
// 行政区域查询实例
const district = new AMap.DistrictSearch({
zIndex: 130,
level: 'province',
extensions: 'all',
subdistrict: 1
})
// 查询行政区域
district.search('山西省', function(status, result) {
if (status === 'complete') {
// 设置地图中心
const center = result.districtList[0].center // 中心点
_this.map.setCenter(center)
// 设置掩模
const bounds = result.districtList[0].boundaries // 行政区域边界坐标连线点数组
const mask = []
for (let i = 0; i < bounds.length; i += 1) {
mask.push([bounds[i]])
}
_this.map.setMask(mask, mask)
// 设置地图‘高度’
const wall = new AMap.Object3D.Wall({
path: bounds,
height: -100000,
color: 'rgba(69,184,255,0.5)'
})
wall.backOrFront = 'both'
wall.transparent = true
object3DLayer.add(wall)
_this.map.add(object3DLayer)
// 添加描边
for (let i = 0; i < bounds.length; i += 1) {
new AMap.Polyline({
path: bounds[i],
strokeColor: '#4de4e5',
strokeWeight: 6,
map: _this.map
})
}
// 设置行政区划
_this.initDistrictLayer(AMap, 12, result.districtList[0].adcode, 1)
_this.disProvince.setMap(_this.map)
}
})
}).catch(e=>{
console.log(e);
})
},
/**
* @description: 设置市级填充颜色
* @param {string|number} adcode 区划编码
* @return {string} 颜色rgb
*/
getColorByAdcode(adcode) {
const colors = {}
if (!colors[adcode]) {
const gb = Math.random() * 155 + 50
colors[adcode] = 'rgba(' + gb + ',' + gb + ',255' + ',1)'
}
return colors[adcode]
},
/**
* @description: 初始化行政区划图层
* @param {*} AMap AMap实例
* @param {number} zIndex 图层叠加顺序
* @param {string|number} adcode 区划编码
* @param {0|1|2} depth 0:省级 1:市级 2:县级
*/
initDistrictLayer(AMap, zIndex, adcode, depth) {
// 行政区划
const _this = this
this.disProvince = new AMap.DistrictLayer.Province({
zIndex: zIndex,
adcode: [adcode],
depth: depth,
// opacity: 0,
rejectMapMask: true,
styles: {
'fill': function(properties) {
// properties为可用于做样式映射的字段，包含
// NAME_CHN:中文名称
// adcode_pro
// adcode_cit
// adcode
const adcode = properties.adcode
return _this.getColorByAdcode(adcode)
},
'stroke-width': 100,
// 'province-stroke': 'cornflowerblue',
'city-stroke': 'rgba(138,228,251,1)' // 中国地级市边界
// 'county-stroke': 'rgba(255,255,255,0.5)' // 中国区县边界
}
})
}
},
<style lang="scss">
.map-container {
width: 100%;
height: 100%;
#mapContainer {
width: 100%;
height: 100%;
background-color: transparent !important;
}
.amap-layer {
background-color: rgba(10, 35, 93, 1);
}
}
</style>
我这里是通过循环创建div容器来实现每个地级市的图表展示
<template>
...
<div class="legend-container">
<div class="legend-box legend-left" @click="projectShow = !projectShow">
<div
class="legend-icon"
:style="{'background-image': projectShow ? 'linear-gradient(rgba(242, 212, 111, 1), rgba(242, 212, 111, 0.3))' : 'linear-gradient(rgba(75, 75, 75, 1), rgba(75, 75, 75, 1))'}"
/>
<div class="legend-text">项目数</div>
</div>
<div class="legend-box" @click="discussShow = !discussShow">
<div
class="legend-icon"
:style="{'background-image': discussShow ? 'linear-gradient(rgba(190, 237, 113, 1), rgba(190, 237, 113, 0.3))' : 'linear-gradient(rgba(75, 75, 75, 1), rgba(75, 75, 75, 1))'}"
/>
<div class="legend-text">评价数</div>
</div>
</div>
<div v-for="(item, index) in cityList" :key="index" style="position: absolute; z-index: 10">
<ItemChart
:id="index"
ref="itemChart"
:left="item.position.x"
:top="item.position.y"
:zoom="item.zoom"
:legend-type="legendType"
:legend-name="legendName"
:obj-data="item.data"
:max-y1="maxY1"
:max-y2="maxY2"
/>
</div>
</template>
<script>
import ItemChart from './components/ItemChart.vue'
export default{
components: {
ItemChart
},
data() {
return {
cityList: [], //图表所需要的属性
cityDataList: [ //接口获取
{
'administrativeName': '运城市',
'projectNum': 10,
'discussNum': 5
},
{
'administrativeName': '大同市',
'projectNum': 14,
'discussNum': 7
},
{
'administrativeName': '晋中市',
'projectNum': 54,
'discussNum': 27
},
{
'administrativeName': '忻州市',
'projectNum': 15,
'discussNum': 6
},
{
'administrativeName': '临汾市',
'projectNum': 58,
'discussNum': 29
},
{
'administrativeName': '阳泉市',
'projectNum': 1,
'discussNum': 5
},
{
'administrativeName': '综改区',
'projectNum': 41,
'discussNum': 160
},
{
'administrativeName': '太原市',
'projectNum': 28,
'discussNum': 19
},
{
'administrativeName': '晋城市',
'projectNum': 30,
'discussNum': 11
},
{
'administrativeName': '朔州市',
'projectNum': 5,
'discussNum': 4
},
{
'administrativeName': '小店区',
'projectNum': 21,
'discussNum': 3
},
{
'administrativeName': '长治市',
'projectNum': 21,
'discussNum': 57
},
{
'administrativeName': '吕梁市',
'projectNum': 11,
'discussNum': 19
},
{
'administrativeName': '山西省',
'projectNum': 80,
'discussNum': 72
}
],
maxY1: 80, //Y1轴的最大值
maxY2: 160,// Y2轴的最大值
// 统一修改图表的展示与隐藏
legendType: '', // 图例操作类型
legendName: '', // 图例操作名称
projectShow: true,
discussShow: true
}
},
methods: {
initMap() {
...
district.search('山西省', function(status, result) {
if (status === 'complete') {
const districtList = result.districtList[0].districtList // 下级区域 这里指省下面的地级市
const zoom = _this.map.getZoom() // 地图当前缩放比例
districtList.map(value => {
const position = _this.map.lngLatToContainer([value.center.lng, value.center.lat]).round()
const data = _this.cityDataList.filter(item => item.administrativeName === value.name)
_this.cityList.push({
position: position,
center: [value.center.lng, value.center.lat],
zoom: zoom,
data: data[0]
})
})
...
// 每次缩放结束后重新计算 缩放比
_this.map.on('zoomend', function() {
const zoom = _this.map.getZoom()
_this.cityList.map(value => {
_this.$set(value, 'zoom', zoom)
})
})
// 每次移动后重新计算 像素
_this.map.on('mapmove', function() {
// console.log(_this.map.getCenter());
_this.cityList.map(value => {
const position = _this.map.lngLatToContainer([value.center[0], value.center[1]]).round()
_this.$set(value, 'position', position)
})
})
// 每次旋转后重新计算 像素
_this.map.on('mousemove', function() {
_this.cityList.map(value => {
const position = _this.map.lngLatToContainer([value.center[0], value.center[1]]).round()
_this.$set(value, 'position', position)
})
})
})
}
}
}
</script>
<style scss="scss">
...
.legend-container {
position: absolute;
z-index: 10;
display: flex;
flex-direction: column;
align-items: flex-start;
left: 20px;
top: 20px;
.legend-box {
cursor: pointer;
display: flex;
align-items: center;
justify-content: center;
.legend-icon {
width: 15px;
height: 15px;
border-radius: 100%;
background-image: linear-gradient(rgb(75, 75, 75), rgb(75, 75, 75));
margin-right: 5px;
}
.legend-text {
font-size: 15px;
color: transparent;
background-image: linear-gradient(rgba(190, 237, 113, 1), rgba(190, 237, 113, 0.3));
-webkit-background-clip: text;
}
}
.legend-left {
margin-bottom: 10px;
.legend-text {
background-image: linear-gradient(rgba(242, 212, 111, 1), rgba(242, 212, 111, 0.3));
}
}
}
</style>
<template>
<div :id="`main${id}`" ref="chartBar" class="test-position" :style="{left: `${left - size/4}px`, top: `${top - size}px`,width: `${size * 0.5}px`, height: `${size}px`}" />
</template>
<script>
import * as echarts from 'echarts'
export default {
props: {
left: {
type: Number,
default: 10
},
top: {
type: Number,
default: 10
},
id: {
type: Number,
default: 0
},
zoom: {
type: Number,
default: 7
},
legendType: {
type: String,
default: ''
},
legendName: {
type: String,
default: ''
},
objData: {
type: Object,
default: function() {
return {}
}
},
maxY1: {
type: Number,
default: 0
},
maxY2: {
type: Number,
default: 0
}
},
data() {
return {
myChart: null,
size: 0
}
},
watch: {
zoom: {
handler(value) {
if (value >= 6 && value < 7) {
this.size = value * 6
} else if (value >= 7 && value < 8) {
this.size = value * 10
} else if (value >= 8 && value < 9) {
this.size = value * 15
} else if (value >= 9 && value <= 10) {
this.size = value * 20
}
},
immediate: true
},
legendType: {
handler(value) {
this.handleSelected(value, this.legendName)
}
},
legendName: {
handler(value) {
this.handleSelected(this.legendType, value)
}
}
},
async mounted() {
await this.initChart()
const resizeObserver = new ResizeObserver(this.onResize)
resizeObserver.observe(this.$refs.chartBar)
},
methods: {
onResize(e) {
// console.log(e);
this.myChart.resize()
},
/**
* @description: 初始化图表
*/
initChart() {
// 基于准备好的dom，初始化echarts实例
this.myChart = echarts.init(document.getElementById(`main${this.id}`))
// 绘制图表
this.myChart.setOption({
tooltip: {
trigger: 'item'
},
legend: {
show: false
},
grid: {
width: '100%',
height: '90%',
top: '5%',
left: '0%'
},
xAxis: {
show: false,
type: 'category',
data: [this.objData.administrativeName]
},
yAxis: [
{
show: false,
type: 'value',
max: this.maxY1
},
{
show: false,
type: 'value',
max: this.maxY2
}
],
series: [
{
name: '项目数',
type: 'bar',
data: [this.objData.projectNum],
barWidth: '35%',
yAxisIndex: 0,
itemStyle: {
// borderRadius: this.size * 0.1,
color: {
type: 'linear',
x: 0,
y: 0,
x2: 0,
y2: 1,
colorStops: [{
offset: 0, color: 'rgba(242, 212, 111, 1)' // 0% 处的颜色
}, {
offset: 1, color: 'rgba(242, 212, 111, 0.3)' // 100% 处的颜色
}],
global: false // 缺省为 false
}
},
barGap: '50%'
},
{
name: '评价数',
type: 'bar',
data: [this.objData.discussNum],
barWidth: '35%',
yAxisIndex: 1,
itemStyle: {
// borderRadius: this.size * 0.1,
color: {
type: 'linear',
x: 0,
y: 0,
x2: 0,
y2: 1,
colorStops: [{
offset: 0, color: 'rgba(190, 237, 113, 1)' // 0% 处的颜色
}, {
offset: 1, color: 'rgba(190, 237, 113, 0.3)' // 100% 处的颜色
}],
global: false // 缺省为 false
}
},
barGap: '50%'
}
]
})
},
/**
* @description: 图例触发的行为
* @param {'legendSelect' | 'legendUnSelect'} type 行为类型
* @param {string} name 图例名称
*/
handleSelected(type, name) {
this.myChart.dispatchAction({
type: type,
// 图例名称
name: name
})
}
}
}
</script>
<style lang="scss">
.test-position {
position: absolute;
}
</style>
JS API 使用
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