private void OnValidate(object sender, EventArgs e)
{
try
{
double lat = 0.0, lon = 0.0, x = 0.0, y = 0.0, x1 = 0.0, y1 = 0.0, azi = 0.0, rk = 0.0;
AzimuthalEquidistant azimuthal = new AzimuthalEquidistant(m_geodesic);
azimuthal = new AzimuthalEquidistant();
azimuthal.Forward(32.0, -86.0, 33.0, -87.0, out x, out y, out azi, out rk);
azimuthal.Forward(32.0, -86.0, 33.0, -87.0, out x1, out y1);
if (x != x1 || y != y1)
{
throw new Exception("Error in AzimuthalEquidistant.Forward");
}
azimuthal.Reverse(32.0, -86.0, x, y, out lat, out lon, out azi, out rk);
azimuthal.Reverse(32.0, -86.0, x, y, out x1, out y1);
if (x1 != lat || y1 != lon)
{
throw new Exception("Error in AzimuthalEquidistant.Reverse");
}
CassiniSoldner cassini = new CassiniSoldner(32.0, -86.0, m_geodesic);
cassini = new CassiniSoldner(32.0, -86.0);
cassini.Reset(31.0, -87.0);
cassini.Forward(32.0, -86.0, out x, out y, out azi, out rk);
cassini.Forward(32.0, -86.0, out x1, out y1);
if (x != x1 || y != y1)
{
throw new Exception("Error in CassiniSoldner.Forward");
}
cassini.Reverse(x, y, out lat, out lon, out azi, out rk);
cassini.Reverse(x, y, out x1, out y1);
if (x1 != lat || y1 != lon)
{
throw new Exception("Error in CassiniSoldner.Reverse");
}
Gnomonic gnomonic = new Gnomonic(m_geodesic);
gnomonic = new Gnomonic();
gnomonic.Forward(32.0, -86.0, 31.0, -87.0, out x, out y, out azi, out rk);
gnomonic.Forward(32.0, -86.0, 31.0, -87.0, out x1, out y1);
if (x != x1 || y != y1)
{
throw new Exception("Error in Gnomonic.Forward");
}
gnomonic.Reverse(32.0, -86.0, x, y, out lat, out lon, out azi, out rk);
gnomonic.Reverse(32.0, -86.0, x, y, out x1, out y1);
if (x1 != lat || y1 != lon)
{
throw new Exception("Error in Gnomonic.Reverse");
}
}
catch (Exception xcpt)
{
MessageBox.Show(xcpt.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
MessageBox.Show("No errors detected", "OK", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
static void Main(string[] args)
{
try {
Geodesic geod = new Geodesic(); // WGS84
const double lat0 = 48 + 50 / 60.0, lon0 = 2 + 20 / 60.0; // Paris
Gnomonic proj = new Gnomonic(geod);
{
// Sample forward calculation
double lat = 50.9, lon = 1.8; // Calais
double x, y;
proj.Forward(lat0, lon0, lat, lon, out x, out y);
Console.WriteLine(String.Format("X: {0} Y: {1}", x, y));
}
{
// Sample reverse calculation
double x = -38e3, y = 230e3;
double lat, lon;
proj.Reverse(lat0, lon0, x, y, out lat, out lon);
Console.WriteLine(String.Format("Latitude: {0} Longitude: {1}", lat, lon));
}
}
catch (GeographicErr e) {
Console.WriteLine(String.Format("Caught exception: {0}", e.Message));
}
}
private void ConvertGnomonic()
{
double lat0 = Double.Parse(m_lat0TextBox.Text);
double lon0 = Double.Parse(m_lon0TextBox.Text);
double lat = 0.0, lon = 0.0, x = 0.0, y = 0.0, azi = 0.0, rk = 0.0;
switch (m_functionComboBox.SelectedIndex)
{
case 0:
lat = Double.Parse(m_latitudeTextBox.Text);
lon = Double.Parse(m_longitudeTextBox.Text);
m_gnomonic.Forward(lat0, lon0, lat, lon, out x, out y, out azi, out rk);
m_xTextBox.Text = x.ToString();
m_yTextBox.Text = y.ToString();
break;
case 1:
x = Double.Parse(m_xTextBox.Text);
y = Double.Parse(m_yTextBox.Text);
m_gnomonic.Reverse(lat0, lon0, x, y, out lat, out lon, out azi, out rk);
m_latitudeTextBox.Text = lat.ToString();
m_longitudeTextBox.Text = lon.ToString();
break;
}
m_azimuthTextBox.Text = azi.ToString();
m_scaleTextBox.Text = rk.ToString();
}
static void Main(string[] args)
{
try {
Geodesic geod = new Geodesic(); // WGS84
const double lat0 = 48 + 50/60.0, lon0 = 2 + 20/60.0; // Paris
Gnomonic proj = new Gnomonic(geod);
{
// Sample forward calculation
double lat = 50.9, lon = 1.8; // Calais
double x, y;
proj.Forward(lat0, lon0, lat, lon, out x, out y);
Console.WriteLine(String.Format("X: {0} Y: {1}", x, y));
}
{
// Sample reverse calculation
double x = -38e3, y = 230e3;
double lat, lon;
proj.Reverse(lat0, lon0, x, y, out lat, out lon);
Console.WriteLine(String.Format("Latitude: {0} Longitude: {1}", lat, lon));
}
}
catch (GeographicErr e) {
Console.WriteLine(String.Format("Caught exception: {0}", e.Message));
}
}
/**
* Interception of a point <i>b</i> to a geodesic <i>a</i>.
* <p>
*
* @param lata1 latitude of point <i>1</i> of geodesic <i>a</i> (degrees).
* @param lona1 longitude of point <i>1</i> of geodesic <i>a</i> (degrees).
* @param lata2 latitude of point <i>2</i> of geodesic <i>a</i> (degrees).
* @param lona2 longitude of point <i>2</i> of geodesic <i>a</i> (degrees).
* @param latb1 latitude of point <i>b</i> (degrees).
* @param lonb1 longitude of point <i>b</i> (degrees).
* @return a {@link GeodesicData} object, defining a geodesic from point <i>b</i> to the
* intersection point, with the following fields: <i>lat1</i>, <i>lon1</i>, <i>azi1</i>,
* <i>lat2</i>, <i>lon2</i>, <i>azi2</i>, <i>s12</i>, <i>a12</i>.
* <p>
* <i>lat1</i> should be in the range [−90°, 90°]; <i>lon1</i> and
* <i>azi1</i> should be in the range [−540°, 540°). The values of
* <i>lon2</i> and <i>azi2</i> returned are in the range [−180°, 180°).
*/
public GeodesicData Intercept(double lata1, double lona1, double lata2, double lona2,
double latb1, double lonb1)
{
if (lata1 == lata2 && lona1 == lona2)
{
return(_gnom.Earth.Inverse(latb1, lonb1, lata1, lona1));
}
var inv = Geodesic.WGS84.Inverse(lata1, lona1, lata2, lona2);
var est = Geodesic.WGS84.Line(inv.lat1, inv.lon1, inv.azi1).Position(inv.s12 * 0.5);
double latb2 = est.lat2, latb2_ = double.NaN, lonb2_ = double.NaN, lonb2 = est.lon2;
for (int i = 0; i < _maxit; ++i)
{
var xa1 = _gnom.Forward(latb2, lonb2, lata1, lona1);
var xa2 = _gnom.Forward(latb2, lonb2, lata2, lona2);
var xb1 = _gnom.Forward(latb2, lonb2, latb1, lonb1);
var va1 = new Vector3D(xa1.x, xa1.y, 1);
var va2 = new Vector3D(xa2.x, xa2.y, 1);
var la = va1.Cross(va2);
var lb = new Vector3D(la.Y, -(la.X), la.X * xb1.y - la.Y * xb1.x);
var p0 = la.Cross(lb);
p0 = p0 * (1d / p0.Z);
latb2_ = latb2;
lonb2_ = lonb2;
GnomonicData rev = _gnom.Reverse(latb2, lonb2, p0.X, p0.Y);
latb2 = rev.lat;
lonb2 = rev.lon;
if (Math.Abs(lonb2_ - lonb2) < eps && Math.Abs(latb2_ - latb2) < eps)
{
break;
}
}
return(_gnom.Earth.Inverse(latb1, lonb1, latb2, lonb2));
}
private void OnValidate(object sender, EventArgs e)
{
try
{
double lat = 0.0, lon = 0.0, x = 0.0, y = 0.0, x1 = 0.0, y1 = 0.0, azi = 0.0, rk = 0.0;
AzimuthalEquidistant azimuthal = new AzimuthalEquidistant(m_geodesic);
azimuthal = new AzimuthalEquidistant();
azimuthal.Forward(32.0, -86.0, 33.0, -87.0, out x, out y, out azi, out rk);
azimuthal.Forward(32.0, -86.0, 33.0, -87.0, out x1, out y1);
if (x != x1 || y != y1)
throw new Exception("Error in AzimuthalEquidistant.Forward");
azimuthal.Reverse(32.0, -86.0, x, y, out lat, out lon, out azi, out rk);
azimuthal.Reverse(32.0, -86.0, x, y, out x1, out y1);
if ( x1 != lat || y1 != lon )
throw new Exception("Error in AzimuthalEquidistant.Reverse");
CassiniSoldner cassini = new CassiniSoldner(32.0, -86.0, m_geodesic);
cassini = new CassiniSoldner(32.0, -86.0);
cassini.Reset(31.0, -87.0);
cassini.Forward(32.0, -86.0, out x, out y, out azi, out rk);
cassini.Forward(32.0, -86.0, out x1, out y1);
if (x != x1 || y != y1)
throw new Exception("Error in CassiniSoldner.Forward");
cassini.Reverse(x, y, out lat, out lon, out azi, out rk);
cassini.Reverse(x, y, out x1, out y1);
if (x1 != lat || y1 != lon)
throw new Exception("Error in CassiniSoldner.Reverse");
Gnomonic gnomonic = new Gnomonic(m_geodesic);
gnomonic = new Gnomonic();
gnomonic.Forward(32.0, -86.0, 31.0, -87.0, out x, out y, out azi, out rk);
gnomonic.Forward(32.0, -86.0, 31.0, -87.0, out x1, out y1);
if (x != x1 || y != y1)
throw new Exception("Error in Gnomonic.Forward");
gnomonic.Reverse(32.0, -86.0, x, y, out lat, out lon, out azi, out rk);
gnomonic.Reverse(32.0, -86.0, x, y, out x1, out y1);
if (x1 != lat || y1 != lon)
throw new Exception("Error in Gnomonic.Reverse");
}
catch (Exception xcpt)
{
MessageBox.Show(xcpt.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
MessageBox.Show("No errors detected", "OK", MessageBoxButtons.OK, MessageBoxIcon.Information);
}