[Talk-de] [josm-dev] Konstruktion von Kreiseln in JOSM

[Christian]

Frederik Ramm schrieb:

>> Maybe we need a third set of coordinates on the nodes, something that 
>> can be used as a "flat" plane for all constructing actions. Or provides 
>> the common match to draw lines and circles etc.
> 
> That's not possible mathematically. Any projection will distort at least 
> one of lengths, angles, or areas. Maybe if we had *three* different 
> "flat plane" coordinates, and depending on what a particular operation 
> wants to achieve, it has to choose one... ;-)

BTW, ich habe mich schon gefragt, wieso bei JOSM eine Projektion
Default ist (EPSG:4326), bei der aus Kreisen Ovale werden.
Mercator scheint da nicht so verzerrend zu sein.....

Chris