[OSM-talk] Maximum segment length?

Lars Aronsson lars at aronsson.se
Fri Mar 23 01:15:18 GMT 2007


Scott Walde wrote:

> Exactly.  That's how our east/west roads are built here.  Our 
> north/south try to follow longitudes, but require correction 
> lines every so often.

So what if a road heads north-west (diagonal), is it straight on a 
Mercator projection or on a linear lat-lon grid?

If a straight road in Ontario goes from (51, -86) to (53, -88), 
does it pass through (52, -87) or not?  If it does, that's a 
straight line in a linear lat-lon grid, but it is a curve in a 
map using Mercator's projection.



-- 
  Lars Aronsson (lars at aronsson.se)
  Aronsson Datateknik - http://aronsson.se




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