OSM Tools
dutch german en francais spanish polish polish russian

How to create line draworders in Basecamp

 

  bitmap footbridge ALWAYS on top

Forget about line draworders on your gps as there is no logic to the algorithm - ie bridges over dual carriageways or motorways often only overlap one of the highways . However, it is possible to force line draworders in Basecamp.

One way to get 'overlapping' bridges is by placing them all in one img and make the priority of this map higher than the rst of the maps - in my experience, this is not guaranteed to work.

The following applies to Basecamp and more than likely will not apply to your gps device.

Bridges

Garmin TOPO No bridges across Motorways Bridges Over Motorways

The following procedure is just one way of creating bridges

Problem: You can't use 0x1 for a Motorway as nothing crosses 0x1 !

Solution 1 Bridge No Outline:

Use 0x1 - 0x7 as bridges highway=motorway & bridge=* [0x1 road_class=4 road_speed=7 resolution 24 continue]

use 0x12 for mways

and make this line TRANSPARENT

highway=motorway [ 0x12 road_class=4 road_speed=7 resolution 16 continue]
use an extended line number to show the motorway AS A BITMAP highway=motorway [ 0x10108 resolution 16 ]

Solution 2 Bridge With Outline:

Use 0x108 as a a transparent bridge outline bridge=* [0x1 resolution 24 continue]
Use 0x1 - 0x7 as bridges highway=motorway & bridge=* [0x2 road_class=4 road_speed=7 resolution 24 continue]

use 0x12 for mways

and make this line TRANSPARENT

highway=motorway [ 0x12 road_class=4 road_speed=7 resolution 16 continue]
use an extended line to show the motorway AS A BITMAP highway=motorway [ 0x10108 resolution 16 ]

Using this method you can have railway lines / even canals ALWAYS crossing motorways and other highways.For railway lines perhaps use type 0x0 (no bitmap)

The draw back is :