Data Management

Contents

On This Page:

  • Access the Offline Data Sources Directory
  • ‘Tracks’ Data Source

On Other Pages:

  • Directory (Folder)
  • Data Store – Sorry this page doesn’t yet exist
  • Layers – Sorry this page doesn’t yet exist
  • Features – Sorry this page doesn’t yet exist
  • Fields / Attributes – Sorry this page doesn’t yet exist
  • Geometry Points – Sorry this page doesn’t yet exist
  • Elevation Profile Charts

Bit Map can store many types of spatial data sources offline to display layers on a map, including GeoPackage, Shapefile, FileGeodatabase, GPX, KML (and many more).  These can be databases, specially formatted folders of files, or individual files.

Note that not all types of data sources that Bit Map can use can be edited by the app.

The Offline Data Sources Directory can be organised into folders to make it easier for users who want to organise large numbers of data sources.

Several types of items may be displayed in the Offline Data Sources Directory OR in any of the folders within the directory:

  • Folder
    • a sub-directory that may include more of any of these item types
  • Multi-Layer Data Source
    • a data source that includes multiple layers – eg, GeoPackage or FileGeodatabase
  • Single Layer Data Source
    • a data source that only includes one layer – eg, a Shapefile or a Tile Grid

Access the Offline Data Sources Directory

  • In the Map View, tap the Offline Data Sources button (top toolbar)

  • The top level of the Offline Data Sources Directory will be displayed listing any data sources and folders contained at the top level directory

‘Tracks’ Data Source

The ‘Tracks’ data source is a special reserved data source that is created automatically when required and resides at the top level of the Offline Data Stores directory .  This data source is used to record tracks (track lines and track points) and to store waypoints.  See:  Tracking and Waypoints – Record Location(s) as Tracks and Waypoints

It is not possible to add other layers to the Tracks data source and it is not possible to modify the schema (fields/attributes) defined for layers within the Tracks data store.

However, it is possible to copy features, layers, or even the entire data source to another data source, where the pasted data can be modified in the same ways as for any other data source.

Features, layers, or even the entire Tracks data source can be deleted in the same ways as for other data sources (if they are not in use).  If the Tracks data source (or one of its layers) is deleted, it will be automatically re-created when required (eg, when Track recording is started, or when a Waypoint is taken).