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/**
* \file NETGeographicLib\GeoidPanel.cs
* \brief NETGeographicLib.Geoid example
*
* NETGeographicLib is copyright (c) Scott Heiman (2013)
* GeographicLib is Copyright (c) Charles Karney (2010-2012)
* <charles@karney.com> and licensed under the MIT/X11 License.
* For more information, see
* http://geographiclib.sourceforge.net/
**********************************************************************/
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using NETGeographicLib;
using System.IO;
namespace Projections
{
public partial class GeoidPanel : UserControl
{
Geoid m_geoid = null;
string m_path;
string m_fileName;
public GeoidPanel()
{
InitializeComponent();
m_threadSafeCheckBox.Checked = true;
}
private void OnSelectFile(object sender, EventArgs e)
{
OpenFileDialog dlg = new OpenFileDialog();
dlg.Filter = "Geoid File (*.pgm)|*.pgm";
dlg.DefaultExt = "pgm";
dlg.Title = "Open Geoid File";
if (dlg.ShowDialog() == DialogResult.Cancel) return;
m_path = dlg.FileName.Substring(0, dlg.FileName.LastIndexOf('\\')).Replace('\\', '/');
int length = dlg.FileName.LastIndexOf('.') - dlg.FileName.LastIndexOf('\\') - 1;
m_fileName = dlg.FileName.Substring(dlg.FileName.LastIndexOf('\\') + 1, length);
try
{
m_geoid = new Geoid(m_fileName, m_path, true, m_threadSafeCheckBox.Checked);
}
catch (Exception xcpt)
{
MessageBox.Show(xcpt.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
m_convertEllipsodButton.Enabled = m_convertGeoidButton.Enabled = m_heightButton.Enabled = m_validateButton.Enabled = true;
m_geoidFileNameTextBox.Text = dlg.FileName;
m_dateTimeTextBox.Text = m_geoid.DateTime;
m_descriptionTextBox.Text = m_geoid.Description;
m_majorRadiusTextBox.Text = m_geoid.MajorRadius.ToString();
m_flatteningTtextBox.Text = m_geoid.Flattening.ToString();
}
private void OnThreadSafe(object sender, EventArgs e)
{
if (m_geoidFileNameTextBox.Text.Length > 0)
{
try
{
m_geoid = new Geoid(m_fileName, m_path, true, m_threadSafeCheckBox.Checked);
}
catch (Exception xcpt)
{
MessageBox.Show(xcpt.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
m_cacheButton.Enabled = !m_threadSafeCheckBox.Checked;
m_northTextBox.ReadOnly = m_southTextBox.ReadOnly = m_eastTextBox.ReadOnly = m_westTextBox.ReadOnly = m_threadSafeCheckBox.Checked;
}
private void OnCache(object sender, EventArgs e)
{
if (m_geoid == null) return;
try
{
double south = Double.Parse(m_southTextBox.Text);
double north = Double.Parse(m_northTextBox.Text);
double west = Double.Parse(m_westTextBox.Text);
double east = Double.Parse(m_eastTextBox.Text);
m_geoid.CacheArea(south, west, north, east);
}
catch (Exception xcpt)
{
MessageBox.Show(xcpt.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void OnConvertEllipsod(object sender, EventArgs e)
{
try
{
double lat = Double.Parse(m_latitudeTextBox.Text);
double lon = Double.Parse(m_longitudeTextBox.Text);
double h = Double.Parse(m_ellipsoidTextBox.Text);
m_geoidTextBox.Text = m_geoid.ConvertHeight(lat, lon, h, Geoid.ConvertFlag.ELLIPSOIDTOGEOID).ToString();
}
catch (Exception xcpt)
{
MessageBox.Show(xcpt.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void OnConvertGeoid(object sender, EventArgs e)
{
try
{
double lat = Double.Parse(m_latitudeTextBox.Text);
double lon = Double.Parse(m_longitudeTextBox.Text);
double h = Double.Parse(m_geoidTextBox.Text);
m_ellipsoidTextBox.Text = m_geoid.ConvertHeight(lat, lon, h, Geoid.ConvertFlag.GEOIDTOELLIPSOID).ToString();
}
catch (Exception xcpt)
{
MessageBox.Show(xcpt.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void OnHeight(object sender, EventArgs e)
{
try
{
double lat = Double.Parse(m_latitudeTextBox.Text);
double lon = Double.Parse(m_longitudeTextBox.Text);
m_ellipsoidTextBox.Text = m_geoid.Height(lat, lon).ToString();
m_geoidTextBox.Text = "0";
}
catch (Exception xcpt)
{
MessageBox.Show(xcpt.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void OnValidate(object sender, EventArgs e)
{
try
{
Geoid g = new Geoid(m_fileName, m_path, false, false);
g.CacheArea(20.0, -30.0, 30.0, -20.0);
g.CacheAll();
double gradx, grady;
double h1 = g.Height(32.0, -60.0, out gradx, out grady);
double h2 = g.Height(32.0, -60.0);
if (h1 != h2)
throw new Exception("Error in Geoid.Height");
g.ConvertHeight(32.0, -60.0, 100.0, Geoid.ConvertFlag.ELLIPSOIDTOGEOID);
MessageBox.Show("No errors detected", "OK", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (Exception xcpt)
{
MessageBox.Show(xcpt.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
}
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