Yoctopuce Yocto-GPS, User Manual

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get_latitude
The
get_latitude()
method of the object returned by
YGps.FindGps
provides the latitude
currently measured by the Yocto-GPS. The value returned is a string, the format will vary according
to the Yocto-GPS configuration. To get a floating point value, no matter the configuartion, use the
YLatitude Class.
A real example
Launch Microsoft Visual C# and open the corresponding sample project provided in the directory
Examples/Doc-GettingStarted-Yocto-GPS of the Yoctopuce library.
In this example, you will recognize the functions explained above, but this time used with all side
materials needed to make it work nicely as a small demo.
using System ;
using System.Collections.Generic ;
using System.Linq ;
using System.Text ;
namespace ConsoleApplication1
{
class Program
{
static void usage ()
{
string execname = System . AppDomain . CurrentDomain . FriendlyName ;
Console . WriteLine ( "Usage:" ) ;
Console . WriteLine ( ex " <serial_number>" ) ;
Console . WriteLine ( ex " <logical_name>" ) ;
Console . WriteLine ( ex " any " ) ;
System. Threading . Thread . Sleep ( 2500 ) ;
Environment . Exit ( 0 ) ;
}
static void Main ( string [] args )
{
string errmsg = "" ;
string target;
YGps gps;
if ( args. Length < 1 ) usage () ;
target = args [ 0 ] . ToUpper () ;
// Setup the API to use local USB devices
if ( YAPI. RegisterHub ( "usb" , ref errmsg ) != YAPI. SUCCESS ) {
Console . WriteLine ( "RegisterHub error: " + errmsg ) ;
Environment . Exit ( 0 ) ;
}
if ( target == "ANY" ) {
gps = YGps. FirstGps () ;
if ( gps == null ) {
Console . WriteLine ( "No module connected (check USB cable) " ) ;
Environment . Exit ( 0 ) ;
}
} else {
gps = YGps. FindGps ( ".temperature" ) ;
}
if ( !gps. isOnline ()) {
Console . WriteLine ( "Module not connected (check identification and USB cable)" ) ;
Environment . Exit ( 0 ) ;
}
while ( gps. isOnline ()) {
if ( gps. get_isFixed () != YGps. ISFIXED_TRUE )
Console . WriteLine ( "fixing... " ) ;
else
Console . WriteLine ( gps. get_latitude () + " " + gps. get_longitude ()) ;
Console . WriteLine ( " (press Ctrl-C to exit)" ) ;
YAPI. Sleep ( 1000 , ref errmsg ) ;
}
12. Using Yocto-GPS with C#
www.yoctopuce.com 81