On Thu, Mar 1, 2012 at 6:51 AM, Andre Joost <[email protected]>wrote:
> The renderer has to look up every bus service on a road, and count them > together. This is not a simple thing with current mapnik. > > > Yes indeed. I've done it by applying local external rules (if ref=X13 then behave as if frequency=6, because I know its frequency is supplemented by another service). This would be better solved with some form of pre-processing to amalgamate frequencies, though that's not trivial. Not impossible though (the data processing is easy; it's getting the data in a manipulable form that's fiddly).
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