What do I need to do to use LatLontoUTM

[bobm]

Hi,

I wish to use the LatLonToUTM function. In examples given 'nav.' is placed in front of the converter. Does 'nav' have to initialised as something?

At the moment when I try to compile I get the message;
‘Undeclared variable 'nav' is used before it was assigned any value’

Sub convertToUTM (dblLattitude As Double, dblLongitude As Double) As Double()
      Dim dblEllipsoidAxis As Double
      Dim dblEllipsoidFlat As Double
     
      convertToUTM = nav.LatLonToUTM(dblEllipsoidAxis, dblEllipsoidFlat, dblLattitude, dblLongitude) As Double()
End Sub

(Still needs the two values put in)

 

[Erel]

You can use an undeclared variable. Which library are you using?

You can try the Geodesic class: http://www.b4x.com/android/forum/th...rt-lat-lon-utm-coordinates.30702/#post-178335

 

[bobm]

GPS library was added. I'll try the geodesic class but what do I use for u.x & u.y?

 

[Erel]

If you want to convert a Lat/Lon coordinate to UTM then you need to use WGS84LatLonToUTM. You should create a LatLon object and pass it to this method.

 

[bobm]

Thanks Erel, yourve been a great help.
I finally got it work properly using the geodesic class

Cheers