title: Android: Build Polygonal Shape Geofence
body: <p>According to the API documentation, only Circular shape Geofences allowed:</p>
  
  <p><a href="https://developers.google.com/android/reference/com/google/android/gms/location/Geofence.Builder" rel="noreferrer">https://developers.google.com/android/reference/com/google/android/gms/location/Geofence.Builder</a></p>
  
  <p>And it's looks for example: <a href="https://developer.android.com/training/location/geofencing.html" rel="noreferrer">https://developer.android.com/training/location/geofencing.html</a></p>
  
  <p>But I have 4 locations, representing 4 corners of rectangle, and I want my Geofence to be that rectangle.</p>
  
  <p>I want to avoid solution of building my custom location monitoring service extending the functionality of monitoring Geofences, because I think this kind of services are CPU &amp; power consuming...</p>
  
  <p>Thanks,</p>