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How could I turn coordinates x,y,z coordinates of several objects into an Android app that displays the position of these objects?

我正在使用带有adk android插件的eclipse,我完全迷路了

That would depend on what do you mean by displaying their location:

  1. Relative to each other on a blank screen. Read up on distance calculation in coordinates and draw the locations relative to their distance from each other.

  2. On a map, each one separately from the other or together. Use a web/binary API for map display like Google Maps (don't want to spam and post links with my reputation), or write your app to display Open map data from sources like OpenStreetMap.

  3. On a satellite/aerial images. Pretty much the same as #3 just you have less options to investigate and try.

If you were a bit clearer in your question, I could have been more specific with the answers, if you edit your question and clarify more, I could be more specific.

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