无法读取未定义的、Terraformer.GeoStore、Terraformer.Store.Memory、Terraformer的属性“Memory”

Question

无法读取未定义的、Terraformer.GeoStore、Terraformer.Store.Memory、Terraformer的属性'Memory‘，我收到错误：

                  Cannot read property 'Memory' of undefined

                 html:

                  // not work
                 <script src="https://unpkg.com/terraformer"></script>
                <script src="https://unpkg.com/terraformer-geostore"></script>
                 <script src="https://unpkg.com/terraformer-rtree"></script>
                    <script src="https://unpkg.com/terraformer-geostore-memory"></script>


                 // not work
                    <script src="https://unpkg.com/terraformer@1.0.7"></script>
                         <script src="https://unpkg.com/terraformer-geostore@1.0.4/browser/terraformer-geostore.js"></script>    


                  js:   Cannot read property 'Memory' of undefined
                           // create a new GeoStore using Memory and an RTree Index
                               var store = new Terraformer.GeoStore({
                               store: new Terraformer.Store.Memory(),   // error  Cannot read property 'Memory' of undefined
                                index: new Terraformer.RTree()
                    });

Answer 1

单据编码错误！花我3个小时找出原因

见下图

           store: new Terraformer.Store.Memory(),

是错误的，

正确的代码应该是：

           store: new Terraformer.GeoStore.Memory(),

http://terraformer.io/geostore/

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Answer 2

如果您想在web worker中使用terraformer，则必须更改源代码以使其能够在web worker中工作。

在浏览器UI主线程中，不需要更改源代码。

我的意思是，如果在浏览器中，不需要修改源代码，你可以这样做：

           <script src="https://unpkg.com/terraformer@1.0.7"></script>
           <script src="https://unpkg.com/terraformer-geostore@1.0.4/browser/terraformer-geostore.js"></script>


            // create a new GeoStore using Memory and an RTree Index
           var store = new Terraformer.GeoStore({

                //wrong, document:  store: new Terraformer.Store.Memory(),

                  store: new Terraformer.GeoStore.Memory(),
                    index: new Terraformer.RTree()
            });

但如果在web worker中，您必须更改源代码：

              // must use our customized version,  'window' is not available in web worker scope. 
               // 'window ' only available in UI main thread, so   if(typeof window === "object"),   must change to 
               //  if(typeof WorkerGlobalScope === "function")

               //importScripts('https://unpkg.com/terraformer@1.0.9')    // original
               importScripts('../../utility/terraformer/terraformer.js') 


                 console.log('typeof WorkerGlobalScope - ', (typeof WorkerGlobalScope))  // function
                 console.log('typeof window - ', (typeof window))     // undefined
                 console.log('typeof navigator - ', (typeof navigator))    // object

这是自定义代码，terraformer.js仅适用于web worker。

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