NT Desktop showning position using GPS mouse

[Poul Jensen]

Hi,

I need to make an NT Desktop app that shows the users own position on the map in realtime using a GPS mouse to supply position.

Anybody done that that has any info to share on how to approach this job ?

This is to be used on a ferry to broadcast a map to TV-screens in the passenger area.

tia

/Poul

[Bruce]

The map part seems easy.

(big blue square with a map-icon in the middle? - but no, I jest...)

Seriously though, yeah, the map part is easy. The only unknown part as fa as I can see is actually getting the co-ordinates from the GPS device. (It's called a GPS Mouse, but as far as I can tell it's not really a mouse, just a GPS receiver.)

the GPS device will likely connect via a USB port, and I'm guessing there's then either some sort of DLL to talk to it, or perhaps you just talk to it directly over a COM port (using WinEvent). I've nver done that, but I'm guessing it's trivial to do as well.

cheers
Bruce

[Poul Jensen]

Thanks - I guess I just have to get hold in a GPS mouse and start playing with it.

/Poul

[DonRidley]

I'm doing this for a fleet a police vehicles.

The Clarion/NetTalk side is straight forward. 

The hardware/driver side.  Not always.

Hit me up if you run into any issues.

Don

[DonRidley]

I have created a demo app for you based on the one we use here at the PD.

It creates a queue of COM ports then checks each port for a valid NMEA GPS string.

If it finds a valid port, it starts reading the port and sets the GPS position.

App converts the NMEA coordinates to "standard" GPS coordinates that can be used in a Clarion app.

App can convert from Miles Per Hour or Meters Per Hour.

Code is a little rough around the edges but maybe it will help you.

Don

[Poul Jensen]

Thanks Don - this is much appreciated and will get me going :-)

/Poul