gps

[sajoo]

hi every one ... i m new using labview  m trying to get data from gps and and seprated the string now i want to calculate the triangulation of two points i cant do ... using equation of line y=mx+c .. where x1 ,y1 and x2,y2 are new and previous lat and long of gps and m is the angle as gps changer its poistion which are m1 and m2 ..by using equation i calculated X,Y cordinate by the value exceed very much ...i want to claculate triangulatin plz help me...

[Andy-C]

Hi sajoo,

So it's still just a little unclear what your code strcture looks like at this point. It would be helpful to know more about which triangulation formula you are attempting to use and how your overall application is structured. Would it be possible for you to post the relevant section of your code to give us a better idea of what you're trying to do?

Depending on what your application is, LabVIEW does support drivers for many GPS devices from major manufacturers. Some of the functionality you are looking for may already exist within LabVIEW.

Please give us a little more information and hopefully we can help you further. 

Regards,

Andy C.
Applications Engineer 
National Instruments 
http://www.ni.com/support

[sajoo]

actually i m extracting data from nmea simulator ,and then seprated cordnates and frist tym lat and long are x1 ,y1 and then second time cordinated changes and i m getting new position and then agian new coordinates , now i m generating angle using variables now i want to claculate the trinagulation of from all three points  a common point of intersection ,but dont know how to do this , my concpet was to use line equation y=mx+c where each time im geting x and y and m(angle ) , now frm these three things want to claculate common point of intersection , kindly help me out....

[Andy-C]

Hi sajoo,

Unfortunately I am not familiar with the mathematics behind triangulation methods. I've located a few documents which may help you determine which algorithm/formula you are attempting to implement.

http://navalfacilities.tpub.com/hdbk419a_vol1/hdbk419a_vol10073.htm

http://everything2.com/title/Triangulate

Once you know what formulas you are attempting to use (you will need more than just y = mx + b), I can help guide you in your code structure. However, for mathematics questions I'd recommend trying a different forum first.

Good luck!

Andy C.

Applications Engineer

National Instruments