基于Vue2配置Cesium

本文是关于基于Vue2，对Cesium，进行在线使用和离线（内网）使用配置

一、安装Cesium依赖

npm i Cesium

二、在线Cesimu配置（在vue.config.js文件中进行如下配置）

const path = require("path");
const CopyWebpackPlugin = require("copy-webpack-plugin");
const webpack = require("webpack");
const cesiumSource = "./node_modules/cesium/Source";
function resolve(dir) {
  return path.join(__dirname, dir);
}
module.exports = {
  // 基本路径
  // publicPath: "./portal", // 打包
  publicPath: "./",
  runtimeCompiler: true,
  // 输出文件目录
  outputDir: "dist",
  configureWebpack: {
    output: {
      sourcePrefix: "", // 1 让webpack 正确处理多行字符串配置 amd参数
    },
    amd: {
      toUrlUndefined: true, // webpack在cesium中能友好的使用require
    },
    resolve: {
      extensions: [".js", ".vue", ".json"],
      alias: {
        vue$: "vue/dist/vue.esm.js",
        "@": path.resolve("src"),
        components: path.resolve("src/components"),
        assets: path.resolve("src/assets"),
        views: path.resolve("src/views"),
        cesium: path.resolve(__dirname, cesiumSource),
      },
    },
    plugins: [
      new CopyWebpackPlugin([
        { from: path.join(cesiumSource, "Workers"), to: "Workers" },
      ]),
      new CopyWebpackPlugin([
        { from: path.join(cesiumSource, "Assets"), to: "Assets" },
      ]),
      new CopyWebpackPlugin([
        { from: path.join(cesiumSource, "Widgets"), to: "Widgets" },
      ]),
      new CopyWebpackPlugin([
        {
          from: path.join(cesiumSource, "ThirdParty/Workers"),
          to: "ThirdParty/Workers",
        },
      ]),
      new webpack.DefinePlugin({
        CESIUM_BASE_URL: JSON.stringify("./"),  // 本地
        //CESIUM_BASE_URL: JSON.stringify("./portal"),  // 打包后
      }),
    ],

    // 导致打包出现length undefined
    // // webpack在cesium中能友好的使用import.meta 
    module: {
      rules: [
        {
          test: /\.js$/,
          use: {
            loader: "@open-wc/webpack-import-meta-loader",
          },
        },
      ],
    }
  },
  assetsDir: "assets",
  filenameHashing: false,
  lintOnSave: process.env.NODE_ENV !== "production",
  // lintOnSave: false,
  productionSourceMap: false,
  devServer: {
    host: "0.0.0.0",
    port: 8080, // 端口号
    https: false, // https:{type:Boolean}
    open: true, //配置自动启动浏览器
    proxy: {
      "/pre": {
        target: "http://192.168.102.54:8733/",
        changeOrigin: true, 
        pathRewrite: {
          "^/pre": "",
        },
      },
    },
  },
  css: {
    loaderOptions: {
      sass: {
        prependData: `@import "./src/assets/css/theme.scss";`, // scss 的目录文件
      },
    },
  },
};

三、离线Cesium配置

1、将Cesium资源文件夹，放在public/libs/Cesium，如图所示

• 这个Cesium文件夹来源于，node-modules下的，如图所示

2、单页面 public/index.html引入，

<script src="./libs/Cesium/Cesium.js" type="text/javascript"></script>

3、vue.config.js 如下配置

const path = require("path");
const CopyWebpackPlugin = require("copy-webpack-plugin");
const webpack = require("webpack");
const cesiumSource = "./node_modules/cesium/Source";
function resolve(dir) {
  return path.join(__dirname, dir);
}
module.exports = {
  // 基本路径
  // publicPath: "./portal", // 打包
  publicPath: "./",
  runtimeCompiler: true,
  // 输出文件目录
  outputDir: "dist",
  configureWebpack: {
    output: {
      sourcePrefix: "", // 1 让webpack 正确处理多行字符串配置 amd参数
    },
    amd: {
      toUrlUndefined: true, // webpack在cesium中能友好的使用require
    },
    resolve: {
      extensions: [".js", ".vue", ".json"],
      alias: {
        vue$: "vue/dist/vue.esm.js",
        "@": path.resolve("src"),
        components: path.resolve("src/components"),
        assets: path.resolve("src/assets"),
        views: path.resolve("src/views"),
        cesium: path.resolve(__dirname, cesiumSource),
      },
    },
    plugins: [
      new CopyWebpackPlugin([
        {
          from: 'node_modules/cesium/Build/Cesium',
          to: 'libs/Cesium',
          filter: (resourcePath) => {
            if (/cesium[\\/]Build[\\/]Cesium[\\/]Cesium.js$/.test(resourcePath)) {
              return false;
            } else if (/cesium[\\/]Build[\\/]Cesium[\\/]Cesium.d.ts$/.test(resourcePath)) {
              return false;
            }
            return true;
          },
        },
      ]),
      new webpack.DefinePlugin({
        // CESIUM_BASE_URL: JSON.stringify("./"),  // 本地
        CESIUM_BASE_URL: JSON.stringify('libs/Cesium'),
        //CESIUM_BASE_URL: JSON.stringify("./portal"),  // 打包后
      }),
    ],
    optimization : {
      splitChunks : {
        chunks : "all",
        cacheGroups : {
          cesium: {
            name: 'Cesium',
            priority: 30,
            test: /[\\/]node_modules[\\/]@smart[\\/]cesium[\\/]Build[\\/]Cesium[\\/]Cesium.js/
          },
        }
      }
    },
    // 导致打包出现length undefined
    // // webpack在cesium中能友好的使用import.meta 
    module: {
      rules: [
        {
          test: /\.js$/,
          use: {
            loader: "@open-wc/webpack-import-meta-loader",
          },
        },
      ],
    }
  },
  assetsDir: "assets",
  filenameHashing: false,
  lintOnSave: process.env.NODE_ENV !== "production",
  // lintOnSave: false,
  productionSourceMap: false,
  devServer: {
    host: "0.0.0.0",
    port: 8080, // 端口号
    https: false, // https:{type:Boolean}
    open: true, //配置自动启动浏览器
    proxy: {
      "/sso": {
        target: "http://192.168.102.194:8098/",
        changeOrigin: true, //开启代理：在本地会创建一个虚拟服务端，然后发送请求的数据，并同时接收请求的数据，这样服务端和服务端进行数据的交互就不会有跨域问题
        pathRewrite: {
          "^/sso": "", //这里理解成用'/api'代替target里面的地址,比如我要调用'http://40.00.100.100:3002/user/add'，直接写'/api/user/add'即可
        },
      },
      // 共享中心
      "/pre": {
        target: "http://192.168.102.54:8733/",   // zk
        // target: "http://192.168.102.43:8733/",   // s
        changeOrigin: true, 
        pathRewrite: {
          "^/pre": "", 
        },
      },
      "/zk": {
        target: "http://192.168.102.54:8736/",
        changeOrigin: true,
        pathRewrite: {
          "^/zk": "", 
        },
      },
      "/scene": {
        target: "http://192.168.102.43:8070/",
        changeOrigin: true, 
        pathRewrite: {
          "^/scene": "",
        },
      },
  },
  css: {
    loaderOptions: {
      sass: {
        prependData: `@import "./src/assets/css/theme.scss";`, // scss 的目录文件
      },
    },
  },
};

4、在Cesium初始化时，如下使用

 init() {
      const Cesium = this.cesium;
      this.highlightColor = Cesium.Color.GREEN.withAlpha(0.6);
      this.normalColor = Cesium.Color.YELLOW.withAlpha(0.6);
      this.viewer = new Cesium.Viewer("cesiumContainer", {
        //先行禁止infoBox弹出
        selectionIndicator: false,
        infoBox: false,
        geocoder: false,
        homeButton: false,
        sceneModePicker: false,
        fullscreenButton: false,
        navigationHelpButton: false,
        animation: false,
        timeline: false,
        fulllscreenButtond: false,
        vrButton: false,
        // 加载本地离线Cesium资源
        imageryProvider: new Cesium.TileMapServiceImageryProvider({
          url: Cesium.buildModuleUrl('Assets/Textures/NaturalEarthII'),
        }),
      });
      this.viewer._cesiumWidget._creditContainer.style.display = "none"; // 隐藏版权
    },