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a. 显示px文档图
原标题:show a map for a gpx file

我想让用户能够把经过跟踪的路线的px文档上载到我的铁路3.2号,并用谷歌地图显示这些档案。

我如何能够这样做? 难道比平分我本人的牛肉档案更加容易,在我的数据库中储存所有线点,并通过json为谷歌地图APIC提供。

提前感谢!

问题回答

Sorry, not much of a Ruby expert. However, the Geographic Data Abstraction Library (GDAL) should handle this very well. GDAL has Ruby bindings: http://trac.osgeo.org/gdal/wiki/GdalOgrInRuby

I would suggest using it to convert GPX to KML and then using the KMLLayer object to display the KML. You would use ogr2ogr: http://gdal.org/ogr2ogr.html

Here s the KMLLayer: http://code.google.com/apis/maps/documentation/javascript/layers.html#KMLLayers





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