Convert Degrees/Minutes/Seconds to Decimal Coordinates

Question

In one part of my code I convert from decimal coordinates to degrees/minutes/seconds and I use this:

double coord = 59.345235;
int sec = (int)Math.Round(coor         


        

Answer 1

Often the western and southern hemispheres are expressed as negative degrees, and seconds contain decimals for accuracy: -86:44:52.892 Remember longitude is the X-coordinate and latitude is the Y-coordinate. This often gets mixed up because people often refer to them lat/lon and X/Y. I modified the code below for the above format.

private double ConvertDegreesToDecimal(string coordinate)
{
    double decimalCoordinate;
    string[] coordinateArray = coordinate.Split(':');
    if (3 == coordinateArray.Length)
    {
        double degrees = Double.Parse(coordinateArray[0]);
        double minutes = Double.Parse(coordinateArray[1]) / 60;
        double seconds = Double.Parse(coordinateArray[2]) / 3600;

        if (degrees > 0)
        {
            decimalCoordinate = (degrees + minutes + seconds);
        }
        else
        {
            decimalCoordinate = (degrees - minutes - seconds);
        }
    }
    return decimalCoordinate;
}