[mkgmap-dev] [PATCH v5] - drive on left + roundabout direction checking

Wed Oct 28 00:43:08 GMT 2009

2009/10/28 Mark Burton <markb at ordern.com>:

> Unfortunately, obtaining the roundabout's diameter is rather a lot of
> work (for me and the computer!) as the original ways that make up the
> roundabout are no longer at hand. It probably could be done but I don't
> think it's really worth it. I shall go for my simple scheme to begin
> with.

The simple way will work, but could you not collect all roundabout
nodes together and compute min and max for both lat and long, giving
you two workable diameter measures from which you could consider the
larger? Or do you by that point literally only have the roundabout
nodes that appear to belong to the flare-vee under consideration?

Dermot

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