[OSM-newbies] rectangular shapes in josm

[Gerald Krummeck (m-net)]

Hi all,

sorry if this is a frequently asked question, but I could not find an 
answer to this here.
I've tried to map some buildings with JOSM and used the rectangular (Q) 
function to make them nice shapes. But when I look at my changes with 
Potlatch or Mapzen, the rectangular shapes are shown as parallelograms, 
i.e. the rectangles are slanted.
Question: which one of the editors is displaying the shapes "correctly"?

Regards,
Gerald