GIS中度分秒与小数之间的相互转换(c#)

//度分秒转小数,如输入333527.9(表示33度35分27.9秒),返回33.59108333
        private double convDMStoDecimal(double temp)
        {
            double d = temp / 10000;           //33.35279
            int degree = (int)Math.Floor(d);   //33      返回小于或等于指定数字的最大整数
            temp -= degree * 10000;            //3527.9
            int minute = (int)Math.Floor(temp/100);//35
            double m = minute / 60.0;
            temp -= minute * 100;      //27.9
            double s = temp / 60.0 / 60.0;
            double result = degree + m + s;
            return (result);
        }

        //小数转度分秒,如输入33.59108333,返回33.35279(表示33度35分27.9秒)
        private double convDecimaltoDMS(double temp)
        {
            int d = (int)Math.Floor(temp);    //33   //返回小于或等于指定数字的最大整数
            double x = (temp - d) * 60;       //0.59108333*60=35.464998(分)
            int m = (int)Math.Floor(x);       //35
            double s = (x - m) * 60;          //0.464998*60=27.89988
            double result = (double)d + (double)m / 100 + (double)s / 10000;
            return result;
        }

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