/// <summary>
/// Initializes a new instance of a horizontal datum
/// </summary>
/// <param name="ellipsoid">Ellipsoid</param>
/// <param name="toWgs84">Parameters for a Bursa Wolf transformation into WGS84</param>
/// <param name="type">Datum type</param>
/// <param name="name">Name</param>
/// <param name="authority">Authority name</param>
/// <param name="code">Authority-specific identification code.</param>
/// <param name="alias">Alias</param>
/// <param name="abbreviation">Abbreviation</param>
/// <param name="remarks">Provider-supplied remarks</param>
internal HorizontalDatum(
IEllipsoid ellipsoid, Wgs84ConversionInfo toWgs84, DatumType type,
string name, string authority, long code, string alias, string abbreviation, string remarks)
: base(type, name, authority, code, alias, abbreviation, remarks)
{
_Ellipsoid = ellipsoid;
_Wgs84ConversionInfo = toWgs84;
}
private void bElSave_Click(object sender, EventArgs e)
{
HorizontalDatum datum = comboDatums.SelectedItem as HorizontalDatum;
try
{
datum.Name = tBElName.Text;
datum.Ellipsoid.SemiMajorAxis = Double.Parse(tbElA.Text);
datum.Ellipsoid.SemiMinorAxis = Double.Parse(tbElB.Text);
Wgs84ConversionInfo wgsInfo =
new Wgs84ConversionInfo(
Double.Parse(tbElDx.Text),
Double.Parse(tbElDy.Text),
Double.Parse(tbElDz.Text),
Double.Parse(tbElRx.Text),
Double.Parse(tbElRy.Text),
Double.Parse(tbElRz.Text),
Double.Parse(tbElS.Text));
config.UserDatum = datum;
}
catch (Exception)
{
MessageBox.Show("Fehler: Bitte überprüfen Sie Ihre Eingaben!");
}
}
private HorizontalDatum DatumFromWKT(string wkt)
{
// DATUM["Bessel 1841",
// SPHEROID["Bessel 1841", 6377397.15508, 299.1528128, AUTHORITY["EPSG", "7004"]],
// TOWGS84[582, 105, 414, 1.04, 0.35, -3.08, 8.3],
// ABBREVIATION["BES"]]
try
{
System.Globalization.CultureInfo CI = new System.Globalization.CultureInfo("");
NumberFormatInfo style =
(NumberFormatInfo)System.Globalization.CultureInfo.CurrentCulture.NumberFormat.Clone();
style.NumberDecimalSeparator = ".";
string name;
Match match = Regex.Match(wkt, "DATUM\\[\"(.+?)\"");
if (match.Success) name = match.Value.Split('"')[1];
else throw new Exception();
StringBuilder spheroid = new StringBuilder(); ;
match = Regex.Match(wkt, "SPHEROID\\[\"(.+?)\\]\\],");
if (match.Success) spheroid.Append(match.Value);
else throw new Exception();
StringBuilder toWGS84 = new StringBuilder();
match = Regex.Match(wkt, "TOWGS84\\[(.+?)\\],");
if (match.Success) toWGS84.Append(match.Value);
else throw new Exception();
string abrev;
match = Regex.Match(wkt, "ABBREVIATION\\[\"(.+?)\\]\\]");
if (match.Success) abrev = match.Value.Split('"')[1];
else throw new Exception();
// Build the WGS-Info
toWGS84.Remove(0, 8);
toWGS84.Remove(toWGS84.Length - 2, 2);
toWGS84.Replace(" ", "");
string[] wgs = toWGS84.ToString().Split(',');
Wgs84ConversionInfo wgsInfo = new Wgs84ConversionInfo(double.Parse(wgs[0], style),
double.Parse(wgs[1], style), double.Parse(wgs[2], style), double.Parse(wgs[3], style),
double.Parse(wgs[4], style), double.Parse(wgs[5], style), double.Parse(wgs[6], style));
// Build the Ellipsoid
spheroid.Remove(0, 10);
spheroid.Remove(spheroid.Length - 3, 3);
spheroid.Replace("AUTHORITY[", "");
spheroid.Replace(" ", "");
spheroid.Replace("\"", "");
string[] elData = spheroid.ToString().Split(',');
string auth = String.Empty;
long authcode = 0;
if (elData.Length > 4)
{
auth = elData[3];
authcode = long.Parse(elData[4]);
}
Ellipsoid el = new Ellipsoid(double.Parse(elData[1], CI), 0, double.Parse(elData[2], style),
true, LinearUnit.Metre, elData[0], auth, authcode, String.Empty, abrev, String.Empty);
return new HorizontalDatum(
el,
wgsInfo,
DatumType.HD_Geocentric,
name,
String.Empty,
0,
String.Empty,
abrev,
String.Empty);
}
catch (Exception)
{
return HorizontalDatum.Bessel1841;
}
}
