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using System;
using NETGeographicLib;
namespace example_LambertConformalConic
{
class Program
{
static void Main(string[] args)
{
try {
// Define the Pennsylvania South state coordinate system EPSG:3364
// http://www.spatialreference.org/ref/epsg/3364/
const double
lat1 = 40 + 58/60.0, lat2 = 39 + 56/60.0, // standard parallels
k1 = 1, // scale
lat0 = 39 + 20/60.0, lon0 =-77 - 45/60.0, // origin
fe = 600000, fn = 0; // false easting and northing
// Set up basic projection
LambertConformalConic PASouth = new LambertConformalConic( Constants.WGS84.MajorRadius,
Constants.WGS84.Flattening,
lat1, lat2, k1);
double x0, y0;
// Transform origin point
PASouth.Forward(lon0, lat0, lon0, out x0, out y0);
x0 -= fe; y0 -= fn;
{
// Sample conversion from geodetic to PASouth grid
double lat = 39.95, lon = -75.17; // Philadelphia
double x, y;
PASouth.Forward(lon0, lat, lon, out x, out y);
x -= x0; y -= y0;
Console.WriteLine( String.Format("{0} {1}", x, y) );
}
{
// Sample conversion from PASouth grid to geodetic
double x = 820e3, y = 72e3;
double lat, lon;
x += x0; y += y0;
PASouth.Reverse(lon0, x, y, out lat, out lon);
Console.WriteLine( String.Format("{0} {1}", lat, lon) );
}
}
catch (GeographicErr e) {
Console.WriteLine( String.Format("Caught exception: {0}", e.Message) );
}
}
}
}
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