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react-swipe-map

v1.0.7

Published

A React component that displays two leaflet maps side by side

Readme

react-swipe-map

一个基于 React 和 Leaflet 的卷帘地图组件,支持左右图层对比展示,适用于地图数据对比、变化检测等场景。

✨ 特性

  • 🗺️ 基于 Leaflet 的卷帘地图组件
  • 🔄 支持卷帘模式和普通地图模式切换
  • 📍 支持左右图层独立管理
  • 🎨 支持自定义控件图标
  • 🗂️ 支持底图切换
  • 📦 开箱即用,简单易用

📦 安装

npm install react-swipe-map
# 或
yarn add react-swipe-map
# 或
pnpm add react-swipe-map

🚀 快速开始

基本使用

import { useEffect, useMemo, useRef, useState } from "react";
import L from "leaflet";
import "leaflet/dist/leaflet.css";
import "./App.scss";
// @ts-ignore
// import { Map } from "react-roll-map-testone";
import Map from "./react-leaflet-side-by-side/index";
// import {}
import RollMapIcon from "./assets/roll-map.png";
import NormalMapIcon from "./assets/normal-map.png";
import BaseMapSelectIcon from "./assets/base-map-select.png";
// @ts-ignore
// import Map from "react-swipe-map";
import { Button } from "antd";
let baseMapList = [
  {
    mapUrl:
      "",
    center: [30.5984, 114.3118],
    zoomOffset: 0,
    zoom: 6,
    maxZoom: 18,
    type: "4326",
    id: "imagesky4326",
    name: "天地图WMTS影像(4326)",
    checked: false,
  },
  {
    id: "1154781632637710336",
    name: "4490天地图影像注记",
    icon: "ca3fe93b207545558ba5c601a8d36c31",
    mapUrl: "",
    type: "4326",
    centre: [23.641, 112.983],
    bounds: null,
    zoom: 7,
    zoomOffset: 1,
    checked: true,
  },
];
function App() {
  const [isRollMap, setIsRollMap] = useState(false);
  const rollMapRef = useRef(null);
  // 在左侧图层上添加一个marker
  const addMarkerToLeft = () => {
    if (!rollMapRef.current) return;
    const marker = L.marker([30.5984, 114.3118], {
      pane: "leftPane",
    });
    (rollMapRef.current as any).addLeftLayers([marker]);
  };
  const addGeoJsonToRight = () => {
    if (!rollMapRef.current) return;
    const geojson = L.geoJSON(
      {
        type: "Feature",
        geometry: {
          type: "Polygon",
          coordinates: [
            [
              [115.796, 40.4934],
              [116.377, 40.3945],
              [116.236, 39.9146],
              [115.659, 40.0129],
              [115.796, 40.4934],
            ],
          ],
        },
      } as any,
      {
        pane: "rightPane",
        style: {
          color: "red",
          weight: 3,
          opacity: 0.5,
          fillColor: "red",
          fillOpacity: 0.2,
        },
      },
    );
    (rollMapRef.current as any).addRightLayers([geojson]);
    // 定位到geojson
    ((rollMapRef.current as any).getMapRef() as L.Map).fitBounds(
      geojson.getBounds(),
    );
  };
  return (
    <>
      <div className="app-container">
        <div className="app-content">
          <Map
            ref={rollMapRef}
            leftLayers={[]}
            rightLayers={[]}
            rollIcon={RollMapIcon}
            normalIcon={NormalMapIcon}
            baseMapSelectIcon={BaseMapSelectIcon}
            baseMapList={baseMapList}
            onIsRollMapChange={setIsRollMap}
          ></Map>
        </div>
        <div className="app-right">
          <Button onClick={addMarkerToLeft} disabled={!isRollMap}>
            添加marker到左侧图层
          </Button>
          <Button onClick={addGeoJsonToRight} disabled={!isRollMap}>
            添加geojson到右侧图层
          </Button>
        </div>
      </div>
    </>
  );
}

export default App;

📖 API 文档

Props

| 参数 | 说明 | 类型 | 默认值 | 必填 | | ------------------- | ---------------- | ------------------------------------ | ------------------------------------------ | ---- | | leftLayers | 左侧图层列表 | L.Layer[] | [] | 否 | | rightLayers | 右侧图层列表 | L.Layer[] | [] | 否 | | mapSettings | 地图配置 | { center: number[], zoom: number } | { center: [35.8617, 104.1954], zoom: 4 } | 否 | | rollIcon | 卷帘模式图标 | any | 内置图标 | 否 | | normalIcon | 普通模式图标 | any | 内置图标 | 否 | | baseMapSelectIcon | 底图选择图标 | any | 内置图标 | 否 | | baseMapList | 底图列表 | BaseMapConfig[] | [] | 否 | | onIsRollMapChange | 卷帘模式变化回调 | (isRollMap: boolean) => void | - | 否 |

BaseMapConfig

interface BaseMapConfig {
  id: string;
  name: string;
  mapUrl: string;
  type: "4326" | "3857";
  centre?: [number, number];
  zoom?: number;
  zoomOffset?: number;
  maxZoom?: number;
  checked?: boolean;
  icon?: string;
}

Ref Methods

通过 ref 可以访问以下方法:

| 方法名 | 说明 | 类型 | | --------------------- | ---------------------- | ----------------------------- | | addLeftLayers | 添加左侧图层 | (layers: L.Layer[]) => void | | addRightLayers | 添加右侧图层 | (layers: L.Layer[]) => void | | clearLeftLayers | 清除左侧图层 | () => void | | clearRightLayers | 清除右侧图层 | () => void | | getMapInstance | 获取地图实例 | () => L.Map \| null | | toggleRollMap | 切换卷帘模式 | (enabled: boolean) => void | | getIsRollMap | 获取当前是否为卷帘模式 | () => boolean | | getLeftLayersGroup | 获取左侧图层组 | () => L.LayerGroup \| null | | getRightLayersGroup | 获取右侧图层组 | () => L.LayerGroup \| null | | getMapRef | 获取地图引用 | () => L.Map \| null |

🎯 使用场景

  • 🗺️ 地图数据对比:对比不同时期的地图数据
  • 📍 变化检测:检测地理数据的变化情况
  • 🎨 图层对比:对比不同图层的数据差异
  • 📊 数据分析:辅助地理数据分析和可视化

💡 注意事项

  1. Leaflet 样式:使用前需要引入 Leaflet 的 CSS 文件:

    import "leaflet/dist/leaflet.css";
  2. Pane 设置:添加图层时,可以通过 pane 参数指定图层所属的 pane:

    • leftPane:左侧图层
    • rightPane:右侧图层
  3. 卷帘模式:只有在卷帘模式下,左右图层才会分开显示

  4. 图层管理:使用 addLeftLayersaddRightLayers 方法添加图层时,会自动更新卷帘控制器

🔧 依赖

  • React >= 18.2.0
  • React DOM >= 18.2.0
  • Leaflet >= 1.9.4
  • leaflet-side-by-side >= 2.2.0
  • antd >= 6.2.3

📝 更新日志

v1.0.2 (当前版本)

  • ✨ 初始版本发布
  • 🗺️ 支持卷帘地图基本功能
  • 🔄 支持卷帘模式和普通地图模式切换
  • 📍 支持左右图层独立管理
  • 🎨 支持自定义控件图标
  • 🗂️ 支持底图切换

🚧 后续优化计划

  • [ ] 添加更多地图控件(比例尺、鹰眼图等)
  • [ ] 支持更多地图服务(WMS、WFS 等)
  • [ ] 优化性能,减少不必要的渲染
  • [ ] 添加更多示例和文档
  • [ ] 支持 TypeScript 类型定义优化
  • [ ] 添加单元测试
  • [ ] 支持自定义主题
  • [ ] 支持移动端适配

🤝 贡献

欢迎提交 Issue 和 Pull Request!

📄 许可证

MIT License

📮 联系方式

如有问题或建议,请通过以下方式联系:


⭐ 如果这个项目对你有帮助,请给一个 Star 支持一下!