vue中引入高德地图Loca数据可视化
Posted 尔嵘
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目录
引言：
前面我的文章介绍了vue中引入高德地图实例的，详情可以去参考，由于需求增加，地图要做的更加美观、数据更加符合真实的空间数据呈现，依旧选择高德地图的API，这里我们选择引入高德地图 在vue中加载 数据可视化 Loca api 2.0版本。
关键词：
vue、高德地图、LOCA、数据可视化
正文：
Loca 数据可视化 API 2.0（以下简称为LOCA API 2.0）是一个基于高德地图JS API 2.0的高性能地图数据可视化库。其中Loca 2.x版本的要比1.3版本的相比，性能提升了和渲染效果更好，这是因为它们不同的架构模式和渲染管线；而且，2.0版本还引入了自定义镜头动画、图层动效、光照和材质等能力。此处注意一下你的版本兼容性！
一、如何安装或者引入：
方式一：
通过npm引入：
npm i @amap/amap-jsapi-loader --save方式二：
通过标签CDN引入：
<script src="https://webapi.amap.com/maps?v=2.0&key=您申请的key值"></script>
<script src="https://webapi.amap.com/loca?v=2.0.0&key=您申请的key值"></script>二、如何引入：
通过npm安装的依赖引入，如下：
import AMapLoader from '@amap/amap-jsapi-loader';三、如何使用：
注意版本号要选择 2.0！
AMapLoader.load(
"key": "ec5517c7d9a73dae44xxxxxxxxxxx", //申请好的Web端开发者Key，首次调用load时必填
"version": "2.0", //指定要加载的JSAPI的版本，缺省时默认为1.4.15
"plugins": ['AMap.Autocomplete', 'AMap.PlaceSearch', 'AMap.Scale', 'AMap.OverView', 'AMap.ToolBar', 'AMap.MapType', 'AMap.PolyEditor', 'AMap.CircleEditor'],
"Loca": //是否加载 Loca,缺省不加载
"version": '2.0.0' //Loca 版本,缺省1.3.2
).then((AMap)=>
this.map = new AMap.Map('container',
zoom: 15.82,
center: [81.214768,43.836157],
pitch: 80,
rotation: 205,
showLabel: true, //不显示地名
showBuildingBlock: true, //显示建筑物
viewMode: '3D', //查看视野
);
this.loca = new Loca.Container(
map: this.map
);
//....其他配置代码，参考下文全量代码
)四、完整代码：
<template>
<div>
<div id="container" style="width:100%;height:90vh" />
</div>
</template>
<script>
import AMapLoader from '@amap/amap-jsapi-loader';
export default
name: "home",
data()
return
mapStyle: "amap://styles/normal", //地图背景模式
loca: null,
map: null,
featuresDataTest: [
type: 'Feature',
geometry:
type: 'Point',
coordinates: [81.218792, 43.841619],
,
properties:
name: '一号灌溉区',
price: 65000,
count: 92
,
type: 'Feature',
geometry:
type: 'Point',
coordinates: [81.20927,43.836963],
,
properties:
name: '2号灌溉区',
price: 65000,
count: 52
,
type: 'Feature',
geometry:
type: 'Point',
coordinates: [81.20927,43.836963],
,
properties:
name: '3号灌溉区',
price: 49000,
count: 53,
,
,
type: 'Feature',
geometry:
type: 'Point',
coordinates: [81.190621,43.838342],
,
properties:
name: '4号灌溉区',
price: 62000,
count: 639,
,
,
type: 'Feature',
geometry:
type: 'Point',
coordinates: [81.203593,43.83431],
,
properties:
name: '5号灌溉区',
price: 48000,
count: 651,
,
,
]
,
methods:
//获取当前时间看是白天还是晚上
getCurrentTime()
let currentDate = new Date(),
hours = currentDate.getHours();
if (hours >= 19)
this.mapStyle = "amap://styles/darkblue";
else
this.mapStyle = "amap://styles/normal";
,
//初始化地图
initMap()
AMapLoader.load(
"key": "ec5517c7d9a73dae44xxxxxxxxxxx", //申请好的Web端开发者Key，首次调用load时必填
"version": "2.0", //指定要加载的JSAPI的版本，缺省时默认为1.4.15
"plugins": ['AMap.Autocomplete', 'AMap.PlaceSearch', 'AMap.Scale', 'AMap.OverView', 'AMap.ToolBar', 'AMap.MapType', 'AMap.PolyEditor', 'AMap.CircleEditor'],
"Loca": //是否加载 Loca,缺省不加载
"version": '2.0.0' //Loca 版本,缺省1.3.2
).then((AMap)=>
this.map = new AMap.Map('container',
zoom: 15.82,
center: [81.214768,43.836157],
pitch: 80,
rotation: 205,
showLabel: true, //不显示地名
showBuildingBlock: true, //显示建筑物
viewMode: '3D', //查看视野
);
this.loca = new Loca.Container(
map: this.map
);
var geo = new Loca.GeoJSONSource(
data:
"type": "FeatureCollection",
"features": this.featuresDataTest
);
// 文字主体图层
var zMarker = new Loca.ZMarkerLayer(
loca: this.loca,
zIndex: 120,
depth: false
);
zMarker.setSource(geo);
zMarker.setStyle(
content: (i, feat) =>
var props = feat.properties;
var leftColor = props.price < 60000 ? 'rgba(0, 28, 52, 0.6)' : 'rgba(33,33,33,0.6)';
var rightColor = props.price < 60000 ? '#038684' : 'rgba(172, 137, 51, 0.3)';
var borderColor = props.price < 60000 ? '#038684' : 'rgba(172, 137, 51, 1)';
return (
'<div style="width: 490px; height: 228px; padding: 0 0;">' +
'<p style="display: block; height:80px; line-height:80px;font-size:40px;background-image: linear-gradient(to right, '
+ leftColor + ',' + leftColor + ',' + rightColor + ',rgba(0,0,0,0.4)); border:4px solid '
+ borderColor + '; color:#fff; border-radius: 15px; text-align:center; margin:0; padding:5px;">' +
props['name'] +
': ' +
(props['price'] / 10000) + `m<sup>3</sup>` +
'</p><span style="width: 130px; height: 130px; margin: 0 auto; display: block; background: url(https://a.amap.com/Loca/static/loca-v2/demos/images/prism_'
+ (props['price'] < 60000 ? 'blue' : 'yellow') + '.png);"></span></div>'
);
,
unit: 'meter',
rotation: 0,
alwaysFront: true,
size: [490/2, 222/2],
altitude: 0
);
// 浮动三角
var triangleZMarker = new Loca.ZMarkerLayer(
loca: this.loca,
zIndex: 119,
depth: false
);
triangleZMarker.setSource(geo);
triangleZMarker.setStyle(
content: (i, feat) =>
return (
'<div style="width: 120px; height: 120px; background: url(https://a.amap.com/Loca/static/loca-v2/demos/images/triangle_'
+ (feat.properties.price < 60000 ? 'blue' : 'yellow')
+ '.png);"></div>'
);
,
unit: 'meter',
rotation: 0,
alwaysFront: true,
size: [60, 60],
altitude: 15
);
triangleZMarker.addAnimate(
key: 'altitude',
value: [0, 1],
random: true,
transform: 1000,
delay: 2000,
yoyo: true,
repeat: 999999
);
// 呼吸点 蓝色
var scatterBlue = new Loca.ScatterLayer(
loca: this.loca,
zIndex: 110,
opacity: 1,
visible: true,
zooms: [2, 26],
depth: false
);
scatterBlue.setSource(geo);
scatterBlue.setStyle(
unit: 'meter',
size: function (i, feat)
return feat.properties.price < 60000 ? [90, 90] : [0, 0];
,
texture: 'https://a.amap.com/Loca/static/loca-v2/demos/images/scan_blue.png',
altitude: 20,
duration: 2000,
animate: true
);
// 呼吸点 金色
var scatterYellow = new Loca.ScatterLayer(
loca: this.loca,
zIndex: 110,
opacity: 1,
visible: true,
zooms: [2, 26],
depth: false
);
scatterYellow.setSource(geo);
scatterYellow.setStyle(
unit: 'meter',
size: function (i, feat)
return feat.properties.price > 60000 ? [90, 90] : [0, 0];
,
texture: 'https://a.amap.com/Loca/static/loca-v2/demos/images/scan_yellow.png',
altitude: 20,
duration: 2000,
animate: true
);
// 启动帧
this.loca.animate.start();
)
,
,
mounted()
if(!this.map)
this.initMap();
</script>五、效果图
参考：
1.、参考手册-LOCA 数据可视化 API 2.0 | 高德地图API
2.、某片区房价信息-标牌点-示例详情-Loca API 2.0 | 高德地图API
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