/// <summary>
/// Shows information about selected projection
/// </summary>
/// <param name="projection"></param>
public void ShowProjection(CoordinateSystem projection)
{
if (projection == null)
{
throw new NullReferenceException("Geoprojection wasn't passed");
}
txtName.Text = projection.Name;
txtCode.Text = projection.Code.ToString();
m_proj = new MapWinGIS.GeoProjection();
if (!m_proj.ImportFromEPSG(projection.Code))
{
// usupported projection
}
else
{
projectionTextBox1.ShowProjection(m_proj.ExportToWKT());
projectionMap1.DrawCoordinateSystem(projection);
projectionMap1.ZoomToCoordinateSystem(projection);
txtProj4.Text = m_proj.ExportToProj4();
txtAreaName.Text = projection.AreaName;
txtRemarks.Text = projection.Remarks;
txtScope.Text = projection.Scope;
}
// showing dialects
if (m_coordinateSystem != null)
{
m_database.ReadDialects(m_coordinateSystem);
for (int i = 0; i < m_coordinateSystem.Dialects.Count; i++)
{
string s = m_coordinateSystem.Dialects[i];
ListViewItem item = this.listView1.Items.Add(i.ToString());
this.UpdateDialectString(item, s);
}
m_index = m_coordinateSystem.Dialects.Count;
if (listView1.Items.Count > 0)
{
listView1.Items[0].Selected = true;
}
}
}
// <summary>
// Some operaions with GeoProjection object
// </summary>
public void GeoProjection(AxMap axMap1)
{
GeoProjection proj = new GeoProjection();
// EPSG code
proj.ImportFromEPSG(4326); // WGS84
// proj 4 string
proj.ImportFromProj4("+proj=longlat +datum=WGS84 +no_defs"); // WGS84
// autodetect the format
string unknown_format = "4326";
proj.ImportFromAutoDetect(unknown_format);
// from file
string filename = "some_name";
proj.ReadFromFile(filename);
// show the name of the loaded projection
Debug.Print("Projection loaded: " + proj.Name);
// show proj 4 representation
Debug.Print("Proj4 representation: " + proj.ExportToProj4());
// let's show the properties of the geographic projection
string s = "";
double[] arr = new double[5];
for (int i = 0; i < 5; i++)
{
// extract the parameter in element of val arr
proj.get_GeogCSParam((tkGeogCSParameter)i, ref arr[i]);
// append the name of parameter and the value to the string
s += (tkGeogCSParameter)i + ": " + arr[i] + Environment.NewLine;
}
MessageBox.Show("Parameters of geographic coordinate system: " + Environment.NewLine + s);
}
/// <summary>
/// Shows information about unrecognized projection
/// </summary>
public void ShowProjection(MapWinGIS.GeoProjection projection)
{
if (projection == null)
{
throw new NullReferenceException("Geoprojection wasn't passed");
}
m_proj = projection;
txtName.Text = projection.Name == "" ? "None" : projection.Name;
txtCode.Text = "None";
if (!projection.IsEmpty)
{
projectionTextBox1.ShowProjection(m_proj.ExportToWKT());
txtProj4.Text = m_proj.ExportToProj4();
txtAreaName.Text = "Not defined";
txtScope.Text = "Not defined";
txtRemarks.Text = "Unrecognized projection";
}
}
public string ExportToProj4()
{
return(_projection.ExportToProj4());
}
