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map-custom

v1.0.1

Published

通过ECharts构建自定义地图

Downloads

3

Readme

mapCustom

npm version LICENSE

mapCustom是一个通过ECharts创建SVG形式渲染的仿3D效果的地图

功能示例:

img

Install

通过npm安装:

npm install map-custom --save

Import

import {createCustomMap} from "map-custom";

Usage

const {mapSvg, geoUtils, renderTextShapes} = createCustomMap({
    echarts,
    viewportSize: {
        width: dom.offsetWidth,
        height: dom.offsetHeight
    },
    fullGeoJson: require("./全省GeoJson.json"),
    regionGeoJson: require("./包含子区域GeoJson.json")
})

参数

echarts

echarts对象

viewportSize

视图大小

参数

  • width 视图的宽度
  • height 视图度高度

fullGeoJson

不包含子区域的GeoJson文件 GeoJson选择器

regionGeoJson

包含子区域的GeoJson文件 GeoJson选择器

mapStyle

地图样式

bottomMapStyle

底部地图样式

lightBorderStyle

边界描边样式

layerMapStyle

各层级地图样式

代码示例

// 注册SVG地图
echarts.registerMap("custom-map", {svg: mapSvg});
const chart = echarts.init(dom)
chart.setOption({
    geo: [
        {
            map: 'custom-map', // 使用注册的地图
            roam: true,
            label: {
                show: false,
                color: "#000a3c",
            },
            emphasis: {
                label: {
                    show: false,
                },
                itemStyle: {
                    areaColor: "#ff0101",
                },
            }
        },
    ],
})
// 坐标转换为像素点
const point = geoUtils.dataToPoint([118.7846, 32.08513])
chart.setOption({
    series: [{
        type: 'scatter',
        coordinateSystem: 'geo',
        data: [point]
    }]
})
// 添加自适应地图城市文本
const point = geoUtils.dataToPoint([118.7846, 32.08513])
chart.setOption({
    series: [{
        type: 'custom',
        coordinateSystem: 'geo',
        data: [0],
        renderItem: (params, api) => renderTextShapes(params, api, {
            style: { // 文本的样式...
                fill: 'black'
            },
            minHide: 0.4 // zoom缩放小于0.4时候隐藏文本
        })
    }]
})

LICENSE

MIT