[mkgmap-dev] osmc:symbol

Fri Jun 17 16:38:04 BST 2016

I'm not aware of any documentation about layering POIs but perhaps consider
these points

a) TYP files can not define a POIs draworder, unlike polygons.

b) There is no guaranteed way of ensuring POI1 always has a higher order
than POI2 - this depends on your Garmin device

However, there is still room for experimentation:

osmc symbols define a foreground and background, ie

background: blue

foreground: yellow diamond

For the level approach to work the background can't be solid but only a
frame with a transparent centre and

all foreground symbols need to fit inside the frame and have the same
dimensions as a background poi

# catch all osmc:symbols and split them into background and foregrounds

#plot backgrounds first

background=blue {0 x  1200a resolution 24 continue) # must use continue

#plot foregrounds last

foreground= yellow_diamond  [0 x  1201a resolution 24)

etc

The level approach is probably best suited for spurious symbols like
arches,wheels or hikers

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