On 3/23/12 2:08 AM, Stefan Below wrote:
i am using the MapProjectionDisplay for playing around with Display side
CoordinateSystem. Everything is working fine, except that i have no idea
how i can display the coordinates of the (UTM) CoordinasSystem on the
X/Y axis. Is it somehow possible to add a mapping between the
Display.Latitude/Longitude and Display.XAxis/Yxis? (p.e.
(Latitude,Longitude) -> (Northing,Easting))
Julien Chastang of the IDV group is working on this now for the IDV.
There is no simple way, especially when the projection is not
rectillinear. Basically, you would have to compute the UTM values at
lat/lon points along the x and y axes and then use a custom Hashtable
for a mapping of X/Y value to Easting/Northing.
You might try adding a data reference with just a GriddedSet of the
Northing/Easting values and then map Easting to Display.XAxis and
Northing to Display.YAxis. I'm not sure it would work if you had the
set with a CoordinateSystem of (Latitude,Longitude) -> (Northing,
Easting) but if that's easier, you could give that a try.
NOAA/ESRL/PSD and CIRES