<template>
<div :ref="myRef" style="width: 100%;height:450px;"></div>
</template>
<script>
import echarts from "echarts/lib/echarts" //echarts
import "echarts/map/js/china.js"; // **地图
import "echarts-gl" //3D地图插件
export default {
name: 'Lines',
props: {
// 流入还是流出
type: {
type: String,
default: 'flowInto' // 'flowInto' or 'outflow'
},
// ref一样的话可能会重复初始化echarts，导致加载不出
myRef:{
type: String,
default: 'lines'
}
},
data() {
return {
myChart: null,
option: null,
points: [
{ value: [118.8062, 31.9208], itemStyle: { color: '#4ab2e5' } }
, { value: [127.9688, 45.368], itemStyle: { color: '#4fb6d2' } }
, { value: [110.3467, 41.4899], itemStyle: { color: '#52b9c7' } }
, { value: [125.8154, 44.2584], itemStyle: { color: '#5abead' } }
, { value: [116.4551, 40.2539], itemStyle: { color: '#f34e2b' } }
, { value: [123.1238, 42.1216], itemStyle: { color: '#f56321' } }
, { value: [114.4995, 38.1006], itemStyle: { color: '#f56f1c' } }
, { value: [117.4219, 39.4189], itemStyle: { color: '#f58414' } }
, { value: [112.3352, 37.9413], itemStyle: { color: '#f58f0e' } }
, { value: [109.1162, 34.2004], itemStyle: { color: '#f5a305' } }
, { value: [103.5901, 36.3043], itemStyle: { color: '#e7ab0b' } }
, { value: [106.3586, 38.1775], itemStyle: { color: '#dfae10' } }
, { value: [101.4038, 36.8207], itemStyle: { color: '#d5b314' } }
, { value: [103.9526, 30.7617], itemStyle: { color: '#c1bb1f' } }
, { value: [108.384366, 30.439702], itemStyle: { color: '#b9be23' } }
, { value: [113.0823, 28.2568], itemStyle: { color: '#a6c62c' } }
, { value: [102.9199, 25.46639], itemStyle: { color: '#96cc34' } }
, { value: [119.4543, 25.9222], itemStyle: { color: '#a1d740' } }
],
site: [119.922796, 28.467630]
}
},
mounted() {
this.init()
},
computed: {
linesData() {
// 流入
if (this.type === 'flowInto') {
return this.points.map(item => {
return {
coords: [item.value, this.site],
lineStyle: item.itemStyle
}
})
} else if (this.type === 'outflow') {
// 流出
return this.points.map(item => {
return {
coords: [this.site, item.value],
lineStyle: item.itemStyle
}
})
} else {
return []
}
}
},
methods: {
init() {
this.options = {
backgroundColor: '#013954',
tooltip: {
trigger: 'item',
formatter: function ( params ) {
return params.name;
}
},
geo: {
map: 'china',
aspectScale: 0.75, //长宽比
zoom: 1.1,
roam: false,
itemStyle: {
normal: {
areaColor: {
type: 'radial',
x: 0.5,
y: 0.5,
r: 0.8,
colorStops: [{
offset: 0,
color: '#09132c' // 0% 处的颜色
}, {
offset: 1,
color: '#274d68' // 100% 处的颜色
}],
globalCoord: true // 缺省为 false
},
shadowColor: 'rgb(58,115,192)',
shadowOffsetX: 10,
shadowOffsetY: 11
},
emphasis: {
areaColor: '#2AB8FF',
borderWidth: 0,
color: 'green',
label: {
show: false
}
}
},
regions: [{
name: '南海诸岛',
itemStyle: {
areaColor: 'rgba(0, 10, 52, 1)',
borderColor: 'rgba(0, 10, 52, 1)',
normal: {
opacity: 0,
label: {
show: false,
color: "#009cc9",
}
}
},
}],
},
series: [{
type: 'map',
roam: false,
label: {
normal: {
show: true,
textStyle: {
color: '#4880FF'
}
},
emphasis: {
textStyle: {
color: 'rgb(183,185,14)'
}
}
},
itemStyle: {
normal: {
borderColor: 'rgb(147, 235, 248)',
borderWidth: 1,
areaColor: {
type: 'radial',
x: 0.5,
y: 0.5,
r: 0.8,
colorStops: [{
offset: 0,
color: '#09132c' // 0% 处的颜色
}, {
offset: 1,
color: '#274d68' // 100% 处的颜色
}],
globalCoord: true // 缺省为 false
},
},
emphasis: {
areaColor: 'rgb(46,229,206)',
// shadowColor: 'rgb(12,25,50)',
borderWidth: 0.1
}
},
zoom: 1.1,
map: 'china' //使用
}, {
type: 'effectScatter',
coordinateSystem: 'geo',
showEffectOn: 'render',
zlevel: 1,
rippleEffect: {
period: 15,
scale: 4,
brushType: 'fill'
},
hoverAnimation: true,
label: {
normal: {
formatter: '{b}',
position: 'right',
offset: [14, 0],
color: '#1DE9B6',
show: true
},
},
itemStyle: {
normal: {
color: '#1DE9B6',
// color: function (value){ //随机颜色
// return "#"+("00000"+((Math.random()*16777215+0.5)>>0).toString(16)).slice(-6);
// },
shadowBlur: 10,
shadowColor: '#333'
}
},
symbolSize: 12,
data: [this.points, { value: this.site }]
}, //地图线的动画效果
{
type: 'lines',
zlevel: 2,
effect: {
show: true,
period: 4, //箭头指向速度，值越小速度越快
trailLength: 0.4, //特效尾迹长度[0,1]值越大，尾迹越长重
symbol: 'arrow', //箭头图标
symbolSize: 7, //图标大小
},
lineStyle: {
normal: {
color: '#1DE9B6',
width: 1, //线条宽度
opacity: 0.1, //尾迹线条透明度
curveness: .3 //尾迹线条曲直度
}
},
data: this.linesData
}
]
}
this.myChart = echarts.init(this.$refs[this.myRef]);
this.myChart.setOption(this.options);
//echarts自适应
window.addEventListener("resize",()=>{
this.myChart.resize();
});
}
},
beforeDestroy() {
if (!this.myChart) {
return;
}
this.myChart.dispose();
this.myChart = null;
},
}
</script>