[OSM-talk] Wrong scale in slippy map

[Andy Deakin]

> >If you want it done right, then your scale bar has detatchable end
> >points. You drag one end of the scale bar to one end of the feature,
> >the other to the other, and then the scale bar warps itself into a
> >great-circle curve and tells you how long it is.
>
> Which would actually be an incredibly cool feature to have, it is 
> essentially a measuring device between two points on the map - any 
> javascript experts out there willing to code this up?
Measuring point to point on a map is already in openlayers:

http://openlayers.org/dev/examples/measure.html