在谷歌地图上覆盖 ESRI shapefile 的最佳方法？

发布于 2024-10-24 05:15:40 字数 204 浏览 7 评论 0 原文

在 Google 地图中叠加 shapefile 的最佳方法是什么？

经过一番阅读后发现，将 shapefile 转换为 KML 并在 Google 地图中覆盖 KML 是一种选择。如果是这种情况，如何将 shapefile 转换为 KML？

我相信会有一些开源工具可用于这种转换。谁能指出一个工具可以将 shapefile 转换为 KML 而不会丢失任何数据？

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烟花肆意 2024-10-31 05:15:40

我喜欢使用（开源且 GUI 友好）Quantum GIS 将 shapefile 转换为 kml。

Google Maps API 仅支持KML 标准的子集。限制之一是文件大小。

要减小文件大小，您可以使用Quantum GIS 的“简化几何图形”功能。这会“平滑”多边形。

然后你可以选择你的图层并对其进行“另存为kml”。

如果您需要处理一堆文件，可以使用 osgeo4w shell 中的 Quantum GIS 的 ogr2ogr 命令对过程进行批处理。

最后，我建议压缩您的 kml（使用您最喜欢的压缩程序）以减小文件大小并将其另存为 kmz。

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混浊又暗下来 2024-10-31 05:15:40

自 2019 年 3 月 12 日起，FusionTables 已不再存在...

将 Shapefile 导入 Google FusionTables ( http://www.google.com/fusiontables ）使用 http://www.shpescape.com/ 从那里您可以通过多种方式使用数据，例如。使用 GoogleMaps 显示它。

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山色无中 2024-10-31 05:15:40

我不会使用 KML。相反，请使用 GeoJSON，您现在可以在 Google Maps API 中原生使用它。这是一个较新的功能，原始响应中不存在。

无论如何，只需打开 Quantum GIS 中的 SHP 文件，然后您就可以以任何您喜欢的格式输出它（KML、GeoJSON）。

如果您使用 Google Maps for Work，我发现了一个高级扩展，可以直接处理加载 shapefile，您可以直接连接到从 ESRI 生成的 shapefile。我在 CMaps 网站上进行了搜索，发现这个片段按州形状文件加载了美国： https: //gmapsplugin.net/cmapsanalytics/assets/shapes/usstates.shp

var cMap = new centigon.locationIntelligence.MapView();
    cMap.key([your_api_key]);


    cMap.layerNames(["Basic Shapes"]);
    cMap.dbfKeys([['Alabama','Alaska','Arizona','Arkansas','California','Colorado','Connecticut','Delaware','District of Columbia','Florida','Georgia','Hawaii','Idaho','Illinois','Indiana','Iowa','Kansas','Kentucky','Louisiana','Maine','Maryland','Massachusetts','Michigan','Minnesota','Mississippi','Missouri','Montana','Nebraska','Nevada','New Hampshire','New Jersey','New Mexico','New York','North Carolina','North Dakota','Ohio','Oklahoma','Oregon','Pennsylvania','Rhode Island','South Carolina','South Dakota','Tennessee','Texas','Utah','Vermont','Virginia','Washington','West Virginia','Wisconsin','Wyoming']]);
    cMap.userShapeKeys([['Massachusetts','Minnesota','Montana','North Dakota','Hawaii','Idaho','Washington','Arizona','California','Colorado','Nevada','New Mexico','Oregon','Utah','Wyoming','Arkansas','Iowa','Kansas','Missouri','Nebraska','Oklahoma','South Dakota','Louisiana','Texas','Connecticut','New Hampshire','Rhode Island','Vermont','Alabama','Florida','Georgia','Mississippi','South Carolina','Illinois','Indiana','Kentucky','North Carolina','Ohio','Tennessee','Virginia','Wisconsin','West Virginia','Delaware','District of Columbia','Maryland','New Jersey','New York','Pennsylvania','Maine','Michigan','Alaska']]); 
    cMap.labels([['Massachusetts','Minnesota','Montana','North Dakota','Hawaii','Idaho','Washington','Arizona','California','Colorado','Nevada','New Mexico','Oregon','Utah','Wyoming','Arkansas','Iowa','Kansas','Missouri','Nebraska','Oklahoma','South Dakota','Louisiana','Texas','Connecticut','New Hampshire','Rhode Island','Vermont','Alabama','Florida','Georgia','Mississippi','South Carolina','Illinois','Indiana','Kentucky','North Carolina','Ohio','Tennessee','Virginia','Wisconsin','West Virginia','Delaware','District of Columbia','Maryland','New Jersey','New York','Pennsylvania','Maine','Michigan','Alaska']]); 

    cMap.polyDataSources([centigon.locationIntelligence.CMapAnalytics.DATA_PROVIDERS.SHAPE_DATAPROVIDER]);
    cMap.layerTypes([centigon.mapping.Layer.TYPE.POLY]);
    cMap.locations([["https://gmapsplugin.net/cmapsanalytics/assets/shapes/usstates.shp"]]);

    cMap.panTo("USA");
    cMap.zoomLevel(3);

I would not use KML. Instead, use GeoJSON which you can natively consume in Google Maps API now. It is a newer feature that didn't exist from the original responses.

In any case, simply open the SHP file in Quantum GIS, and then you can output it in any format you like (KML, GeoJSON).

If you are using Google Maps for Work, I found a premium extension that handles loading shapefiles directly where you can just connect direct to the shapefile that you generate from ESRI. I did a search on the CMaps site and found this snippet which loaded US by state shapefile: https://gmapsplugin.net/cmapsanalytics/assets/shapes/usstates.shp

var cMap = new centigon.locationIntelligence.MapView();
    cMap.key([your_api_key]);


    cMap.layerNames(["Basic Shapes"]);
    cMap.dbfKeys([['Alabama','Alaska','Arizona','Arkansas','California','Colorado','Connecticut','Delaware','District of Columbia','Florida','Georgia','Hawaii','Idaho','Illinois','Indiana','Iowa','Kansas','Kentucky','Louisiana','Maine','Maryland','Massachusetts','Michigan','Minnesota','Mississippi','Missouri','Montana','Nebraska','Nevada','New Hampshire','New Jersey','New Mexico','New York','North Carolina','North Dakota','Ohio','Oklahoma','Oregon','Pennsylvania','Rhode Island','South Carolina','South Dakota','Tennessee','Texas','Utah','Vermont','Virginia','Washington','West Virginia','Wisconsin','Wyoming']]);
    cMap.userShapeKeys([['Massachusetts','Minnesota','Montana','North Dakota','Hawaii','Idaho','Washington','Arizona','California','Colorado','Nevada','New Mexico','Oregon','Utah','Wyoming','Arkansas','Iowa','Kansas','Missouri','Nebraska','Oklahoma','South Dakota','Louisiana','Texas','Connecticut','New Hampshire','Rhode Island','Vermont','Alabama','Florida','Georgia','Mississippi','South Carolina','Illinois','Indiana','Kentucky','North Carolina','Ohio','Tennessee','Virginia','Wisconsin','West Virginia','Delaware','District of Columbia','Maryland','New Jersey','New York','Pennsylvania','Maine','Michigan','Alaska']]); 
    cMap.labels([['Massachusetts','Minnesota','Montana','North Dakota','Hawaii','Idaho','Washington','Arizona','California','Colorado','Nevada','New Mexico','Oregon','Utah','Wyoming','Arkansas','Iowa','Kansas','Missouri','Nebraska','Oklahoma','South Dakota','Louisiana','Texas','Connecticut','New Hampshire','Rhode Island','Vermont','Alabama','Florida','Georgia','Mississippi','South Carolina','Illinois','Indiana','Kentucky','North Carolina','Ohio','Tennessee','Virginia','Wisconsin','West Virginia','Delaware','District of Columbia','Maryland','New Jersey','New York','Pennsylvania','Maine','Michigan','Alaska']]); 

    cMap.polyDataSources([centigon.locationIntelligence.CMapAnalytics.DATA_PROVIDERS.SHAPE_DATAPROVIDER]);
    cMap.layerTypes([centigon.mapping.Layer.TYPE.POLY]);
    cMap.locations([["https://gmapsplugin.net/cmapsanalytics/assets/shapes/usstates.shp"]]);

    cMap.panTo("USA");
    cMap.zoomLevel(3);

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