Would it be feasible to process overlays directly in the "lines" file?
Instead of
'highway=trunk & oneway=yes [0x123 road_class=3 road_speed=5 resolution 16]'
in the "lines" file and
'0x123: 0x02, 0x23' in the "overlays" file, how about
'highway=trunk & oneway=yes [0x02, 0x23 road_class=3 road_speed=5 resolution
16]'
This would remove the need for an "overlays" file and for a dummy code
for each overlaid feature.
Roger
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Roger Calvert
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