public double Dms2Dd(DMSCoord dmsCoord)
{
double result;
result = dmsCoord.deg + (dmsCoord.min / 60.0) + (dmsCoord.sec / 3600);
if (dmsCoord.deg > 0 && dmsCoord.min > 0 && dmsCoord.sec > 0)
{
switch (dmsCoord.quadrant)
{
case Quadrant.N:
result = (dmsCoord.deg <= 90 && dmsCoord.min < 60 && dmsCoord.sec < 60) ? result : 9999;
break;
case Quadrant.E:
result = (dmsCoord.deg <= 180 && dmsCoord.min < 60 && dmsCoord.sec < 60) ? result : 9999;
break;
case Quadrant.W:
result = (dmsCoord.deg <= 180 && dmsCoord.min < 60 && dmsCoord.sec < 60) ? -result : 9999;
break;
case Quadrant.S:
result = (dmsCoord.deg <= 90 && dmsCoord.min < 60 && dmsCoord.sec < 60) ? -result : 9999;
break;
default:
result = 9999;
break;
}
}
return(result);
}
public double Dms2Dd(DMSCoord dmsCoord)
{
double errValue = 9999.0;
Boolean positive = false;
/** perform initial degree range checks:
* 180 degree and 60 seconds/minute requirements */
if (dmsCoord.deg < 0 || dmsCoord.deg > 180)
{
return(errValue);
}
if (dmsCoord.min < 0 || dmsCoord.min >= 60)
{
return(errValue);
}
if (dmsCoord.sec < 0 || dmsCoord.sec >= 60)
{
return(errValue);
}
/** make decisions of bearings according to angles,
* and check for 90 degree requirements */
switch (dmsCoord.quadrant)
{
case Quadrant.N:
if (dmsCoord.deg > 90)
{
return(errValue);
}
positive = true;
break;
case Quadrant.E:
positive = true;
break;
case Quadrant.S:
if (dmsCoord.deg > 90)
{
return(errValue);
}
positive = false;
break;
case Quadrant.W:
positive = false;
break;
default:
return(errValue);
}
double seconds = dmsCoord.sec / 60;
double minutes = (dmsCoord.min + seconds) / 60;
double dd = dmsCoord.deg + ((dmsCoord.min + (dmsCoord.sec / 60)) / 60); // perform the conversion calculation
return(positive ? dd : (-1 * dd)); // return the decimal degrees
}
