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Re: [udig-dev] uDig Scale Bar - Bug 1993
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On 24/07/2013 10:17 AM, Philip Donner wrote:
Thanks Emily for your comments. I do agree with your analysis. Also realized that correct computing depends on the coordinate
system. I'll check Lat/Lon projection to see if that could produce an accurate scalebar. Is that ETRS89 (~WGS84) ?
I believe any projection whose units are in degrees will currently work
okay with the scalebar as the calculateScaleDenominator function runs a
different computation in that case (so, yes to "ETRS89 (4258)").
However keep in mind that if you are zoomed out over a "large" area
(100+km) the distance and scalebar computations are going to be a bit
different because the distance will be different on different parts of
the map.
I would highly appreciate if you can tune the formula before Sunday and our presentation. A map with a scalebar looks much more
useful than one where you have to guess the dimensions.
Wish you good luck, ph
