Strict_navigation_by_gpx_navtrkpt. 

INSTRUCTIONS ATTACHED DIRECT INTO THE INDIVIDUAL TRACKPOINTS

Strict on and offroad Navigation only using standard clear language "attributes"(tags).
Navigation design by Via Points and Shape Points.  Both are user fixed points to shape (steer) a design.
The resulting router created trkpt's dynamic points can be changed by any next rerouting action.  

Important point attributes(tags).
Local language <name><cmt> the ALWAYS ENGLISH <sym> and <type>

Optional. By actual Locus NOT suppported !
By gpx point <desc> support add usefull navigation info
See: http://forum.locusmap.eu/index.php?topic=5953.msg50288#msg50288

Via Points.
By actual Locus: Any <sym> not recognised is promoted to be a Via Point.
 
At Planning: 
- Pass Point for router. 
Mobile Gps navigation operational: 
- Must Pass Point for auto(re)router. 
- TTS announced by <name> (If empty not TTS announced !)
- Via Points can not be removed by auto-rerouting action at operation.

Optimalisation. By Actual Locus NOT supported !
To share Locus Planner Shape Points: Add point marker by the element <type>Shape

At Planning: 
- Pass Point for router. 
Mobile Gps Navigation operational: 
- No must pass point. Ignored by the autorerouting action at operations.

BEFORE Router action.
File 1. Nav_Track design. Only functional at mobile gps and routable maps.
File only contains Via and Shaping Points.

AFTER Router action.
File 2. Direct nav_track design. Functional by gps navigation app with or without inbuilt (re)router.
File contains individual Routepoints, Nav Points, Via Points, Shaping Points.

File 22: Idem as 2 + additional Free POI
