<template>
	<view style="height: 750rpx">
		<l-echart ref="chart"></l-echart>
	</view>
</template>

<script>
	import * as echarts from "./echarts.min.js";
	export default {
		data() {
			return {
			}
		},
		mounted() {
			this.$refs.chart.init(echarts,async chart => {
				chart.showLoading()
				const data = await this.getData()
				chart.hideLoading()
				echarts.registerMap('HK', data);
				const option = {
					title: {
						text: 'Population Density of Hong Kong （2011）',
						sublink:
						'http://zh.wikipedia.org/wiki/%E9%A6%99%E6%B8%AF%E8%A1%8C%E6%94%BF%E5%8D%80%E5%8A%83#cite_note-12'
					},
					tooltip: {
						trigger: 'item',
						formatter: '{b}<br/>{c} (p / km2)'
					},
					visualMap: {
						min: 800,
						max: 50000,
						text: ['High', 'Low'],
						realtime: false,
						calculable: true,
						inRange: {
						color: ['lightskyblue', 'yellow', 'orangered']
						}
					},
					series: [
						{
						name: '香港18区人口密度',
						type: 'map',
						map: 'HK',
						label: {
							show: true
						},
						data: [
							{ name: '中西区', value: 20057.34 },
							{ name: '湾仔', value: 15477.48 },
							{ name: '东区', value: 31686.1 },
							{ name: '南区', value: 6992.6 },
							{ name: '油尖旺', value: 44045.49 },
							{ name: '深水埗', value: 40689.64 },
							{ name: '九龙城', value: 37659.78 },
							{ name: '黄大仙', value: 45180.97 },
							{ name: '观塘', value: 55204.26 },
							{ name: '葵青', value: 21900.9 },
							{ name: '荃湾', value: 4918.26 },
							{ name: '屯门', value: 5881.84 },
							{ name: '元朗', value: 4178.01 },
							{ name: '北区', value: 2227.92 },
							{ name: '大埔', value: 2180.98 },
							{ name: '沙田', value: 9172.94 },
							{ name: '西贡', value: 3368 },
							{ name: '离岛', value: 806.98 }
						],
						// 自定义名称映射
						nameMap: {
							'Central and Western': '中西区',
							Eastern: '东区',
							Islands: '离岛',
							'Kowloon City': '九龙城',
							'Kwai Tsing': '葵青',
							'Kwun Tong': '观塘',
							North: '北区',
							'Sai Kung': '西贡',
							'Sha Tin': '沙田',
							'Sham Shui Po': '深水埗',
							Southern: '南区',
							'Tai Po': '大埔',
							'Tsuen Wan': '荃湾',
							'Tuen Mun': '屯门',
							'Wan Chai': '湾仔',
							'Wong Tai Sin': '黄大仙',
							'Yau Tsim Mong': '油尖旺',
							'Yuen Long': '元朗'
						}
						}
					]
				}
				
				chart.setOption(option);
			})
		},
		methods: {
			getData() {
				return new Promise(resolve => {
					uni.request({
						url: 'https://fastly.jsdelivr.net/gh/apache/echarts-website@asf-site/examples/data/asset/geo/HK.json',
						success(res) {
							setTimeout(() => {
								resolve(res.data);
							}, 2000)
							
						}
					});
				});
			}
		}
	}
</script>