使用 shapefiles 的 Android GPS 应用程序
我对 Android 开发非常陌生。我想为我的高级项目制作一个 Android 应用程序。该项目的想法是这样的：构建一个应用程序，它将在地图上显示一个人的位置，无论是在道路还是路径上。所以看起来使用谷歌地图和 Locator 类可以做到这一点。但这是我为 esir 格式的路径系统提供的 shapefile。看起来可以将其从 ArcGIS 导出为 KML 文件，然后将其覆盖在谷歌地图上。当然，现在我希望向用户显示的 GPS 位置能够“捕捉”到最近的路径（如果该路径位于路径的 15m 范围内），以帮助隐藏 GPS 中的不准确性。我还希望能够在地图上放置通知图标，例如路径条件，可以不时更新。我也有该地区道路、溪流、湖泊等的形状文件，所以我可以使用它们而不是谷歌地图。使用谷歌地图并覆盖 KML 文件是执行此操作的最佳方法吗？这听起来像是一个可行的项目吗？
I'm very new to android development. I would like to make a android app for my senior project. The idea for the project is this: build an app that will show one's location on a map be it on a road or path. So it looks like using google maps and the Locator class this can be done. But here is the thing I have shapefile for the path system in esir format. It looks like one could export this from ArcGIS as a KML file, and then overlay it on top of the google map. Now of course I would like the GPS location displayed to the user to "snap" to the nearest path if it is in say 15m of the path to help hide the inaccuracies in the GPS. I would also like to be able to place notification icons on the map, e.g. path condition, that could be updated from time to time. I do also have shapefiles for the roads, streams, lakes, etc. for the area, so I could just use them instead of google maps. Is using google map and overlaying the KML file the best way to do this? Does this sound like a doable project?
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当然，这是一个可行的项目。对于您的底图，此类项目有很多解决方案，您可以使用谷歌地图，openstreetmap，Bingmap（我个人更喜欢openstreetmap），开放层.....，之后您可以选择谷歌地图API或Arcgis Api（我个人认为arcgis api更专业，包括GIS的所有服务）...，对于Gps有很多解决方案之一主题是更新您的 Gpx 文件并将其像应用程序中的图形层一样投影。
Of caurse it's a doable project .there are many solutions for this kinde of projects for your base map you can use google map , openstreetmap ,Bingmap (personnaly i prefer openstreetmap ),open layer ..... , After that you can choose between google map api or Arcgis Api (personnaly i think that arcgis api is more Professional including all services of a GIS ) ... ,for Gps there ara many solutions one of theme is to update your Gpx file and project it like a graphic layer in you app .