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UtilsGeo.cs
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/*
DSA Lims - Laboratory Information Management System
Copyright (C) 2018 Norwegian Radiation Protection Authority
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
// Authors: Dag Robole,
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
namespace DSA_lims
{
public static class UtilsGeo
{
private static int Coords_GetGroupSuccesses(Match m)
{
int nSuccesses = 0;
foreach (Group g in m.Groups)
{
if (g.Success)
nSuccesses++;
}
return nSuccesses;
}
public static double GetLatitude(string input)
{
double lat = 0;
input = input.Replace('°', '*');
Regex regex = new Regex("^(\\d{1,2})\\*?\\s+(\\d{1,2})'?\\s+(\\d{1,2})\"?\\s*([NS])$");
Match match = regex.Match(input);
if (match.Success)
{
// Degrees, Minutes, Seconds
if (Coords_GetGroupSuccesses(match) != 5)
throw new Exception("Invalid format on latitude");
double degree = Convert.ToDouble(match.Groups[1].Value);
double minutes = Convert.ToDouble(match.Groups[2].Value);
double seconds = Convert.ToDouble(match.Groups[3].Value);
if (Math.Abs(degree) > 90d)
throw new Exception("Latitude degree is out of range");
if (Math.Abs(minutes) > 60d)
throw new Exception("Latitude minutes is out of range");
if (Math.Abs(seconds) > 60d)
throw new Exception("Latitude seconds is out of range");
lat = degree + (minutes / 60.0) + (seconds / 3600.0);
if (match.Groups[4].Value == "S")
lat = -lat;
return lat;
}
regex = new Regex("^(\\d{1,2})\\*?\\s+(\\d{1,2}" + Utils.NumberSeparator + "?\\d{0,6})'?\\s*([NS])$");
match = regex.Match(input);
if (match.Success)
{
// Degrees, Minutes
if (Coords_GetGroupSuccesses(match) != 4)
throw new Exception("Invalid format on latitude");
double degree = Convert.ToDouble(match.Groups[1].Value);
double minutes = Convert.ToDouble(match.Groups[2].Value);
if (Math.Abs(degree) > 90d)
throw new Exception("Latitude degree is out of range");
if (Math.Abs(minutes) > 60d)
throw new Exception("Latitude minutes is out of range");
//degrees = degrees + minutes / 60
lat = degree + minutes / 60.0;
if (match.Groups[3].Value == "S")
lat = -lat;
return lat;
}
regex = new Regex("^(\\d{1,2}" + Utils.NumberSeparator + "?\\d{0,32})\\*?\\s*([NS])$");
match = regex.Match(input);
if (match.Success)
{
// Desimals with direction
if (Coords_GetGroupSuccesses(match) != 3)
throw new Exception("Invalid format on latitude");
lat = Convert.ToDouble(match.Groups[1].Value);
if (match.Groups[2].Value == "S")
lat = -lat;
if (Math.Abs(lat) > 90d)
throw new Exception("Latitude is out of range");
return lat;
}
regex = new Regex("^(-?\\d{1,2}" + Utils.NumberSeparator + "?\\d{0,32})$");
match = regex.Match(input);
if (match.Success)
{
// Desimal
if (Coords_GetGroupSuccesses(match) != 2)
throw new Exception("Invalid format on latitude");
lat = Convert.ToDouble(match.Groups[1].Value);
if (Math.Abs(lat) > 90d)
throw new Exception("Latitude is out of range");
return lat;
}
throw new Exception("Invalid format on latitude");
}
public static double GetLongitude(string input)
{
double lon = 0;
input = input.Replace('°', '*');
Regex regex = new Regex("^(\\d{1,3})\\*?\\s+(\\d{1,2})'?\\s+(\\d{1,2})\"?\\s*([EW])$");
Match match = regex.Match(input);
if (match.Success)
{
// Degrees, Minutes, Seconds
if (Coords_GetGroupSuccesses(match) != 5)
throw new Exception("Invalid format on longitude");
double degree = Convert.ToDouble(match.Groups[1].Value);
double minutes = Convert.ToDouble(match.Groups[2].Value);
double seconds = Convert.ToDouble(match.Groups[3].Value);
if (Math.Abs(degree) > 180d)
throw new Exception("Longitude degree is out of range");
if (Math.Abs(minutes) > 60d)
throw new Exception("Longitude minutes is out of range");
if (Math.Abs(seconds) > 60d)
throw new Exception("Longitude seconds is out of range");
lon = degree + (minutes / 60.0) + (seconds / 3600.0);
if (match.Groups[4].Value == "W")
lon = -lon;
return lon;
}
regex = new Regex("^(\\d{1,3})\\*?\\s+(\\d{1,2}" + Utils.NumberSeparator + "?\\d{0,6})'?\\s*([EW])$");
match = regex.Match(input);
if (match.Success)
{
// Degrees, Minutes
if (Coords_GetGroupSuccesses(match) != 4)
throw new Exception("Invalid format on longitude");
double degree = Convert.ToDouble(match.Groups[1].Value);
double minutes = Convert.ToDouble(match.Groups[2].Value);
if (Math.Abs(degree) > 180d)
throw new Exception("Longitude degree is out of range");
if (Math.Abs(minutes) > 60d)
throw new Exception("Longitude minutes is out of range");
//degrees = degrees + minutes / 60
lon = degree + minutes / 60.0;
if (match.Groups[3].Value == "W")
lon = -lon;
return lon;
}
regex = new Regex("^(\\d{1,3}" + Utils.NumberSeparator + "?\\d{0,32})\\*?\\s*([EW])$");
match = regex.Match(input);
if (match.Success)
{
// Decimals with direction
if (Coords_GetGroupSuccesses(match) != 3)
throw new Exception("Invalid format on longitude");
lon = Convert.ToDouble(match.Groups[1].Value);
if (match.Groups[2].Value == "W")
lon = -lon;
if (Math.Abs(lon) > 180d)
throw new Exception("Longitude is out of range");
return lon;
}
regex = new Regex("^(-?\\d{1,3}" + Utils.NumberSeparator + "?\\d{0,32})$");
match = regex.Match(input);
if (match.Success)
{
// Desimal
if (Coords_GetGroupSuccesses(match) != 2)
throw new Exception("Invalid format on longitude");
lon = Convert.ToDouble(match.Groups[1].Value);
if (Math.Abs(lon) > 180d)
throw new Exception("Longitude out of range");
return lon;
}
throw new Exception("Invalid format on longitude");
}
}
}