| Class | Description | 
|---|---|
| Area | 
 The root area. 
 | 
| Constants | 
 A class storing application wide constants 
 | 
| DataManager | 
 This class extends  
SQLiteOpenHelper and allows data-driven map features creation. | 
| Gradient | 
 Given an array of colors, this class mostly exposes a single method  
Gradient.get_color_at(float)
 that interpolates a new Color at the given position. | 
| LowPassFilter | |
| OneEuroFilter | |
| SharedBuffer | 
 This singleton class is used to sync instances of shared pieces of the application. 
 | 
| Vector2 | 
 Encapsulates a 2D vector. 
 | 
| Enum | Description | 
|---|---|
| SharedBuffer.LocationState | 
 An enum for the possible location (GPS) states. 
 | 
| SharedBuffer.MarkerState | 
 A binary enum to reflect visibility of markers. 
 | 
| SharedBuffer.PositionState | 
 An enum to indicate where the  
SharedBuffer.user_location_ stands relatively to places. |