VolksNav in Douala

Click or doubleClick a point on map to know the logical area code of that point

Area codes like "crossing Douala m9:5 r23" consist of hours, minutes and radius according to following convention:

element meaning details
StatusQuo Douala prefix of an urban position code

The urban pole is the Place de l'Independence
(another point?)
m12

reference horizon hour

from urban pole to north,

m3 to sunrise, m6 to south etc.
number after ":", e.g. m12:5

horizon minutes,

blue lines

distance to horizon hour,


1 unity = 100 meters

r...,

e. g. r66

radius,

red lines

distance to urban pole,

1 unity = 100m

download Douala_r100.KML

This map converts lat/lon to StatusQuo on a simplified mode, tolerable for radius < 10 km. For a professional conversion, see VolksNav.com/mapplet

--------

The division of the horizon into 12 directions can also be used global or indoor.

Example: Grand Mall Douala m4:5 r22

: gm1 unity = 1 meter

Signage, complement to existing ones:

sc

The picture shows:

- crossing code m9:5 r23

- advertisement (lollipop design)

- north pointer (red)

- center pointer (yellow)

On Victoria sign:

- center is behind/f6

- north is right hand/f3

convention: f12 = front direction

------------

Evolution

ho