public void Test_Constructor()
{
VerticalDatum verticalDatum = new VerticalDatum(DatumType.IHD_Geocentric,"remarks","authoritycode","authority","name","alias","abbreviation");
Assertion.AssertEquals("ctor1.","remarks",verticalDatum.Remarks);
Assertion.AssertEquals("ctor2.","authority",verticalDatum.Authority);
Assertion.AssertEquals("ctor3.","authoritycode",verticalDatum.AuthorityCode);
Assertion.AssertEquals("ctor4.","name",verticalDatum.Name);
Assertion.AssertEquals("ctor5.","alias",verticalDatum.Alias);
Assertion.AssertEquals("ctor6.","abbreviation",verticalDatum.Abbreviation);
Assertion.AssertEquals("ctor7.",DatumType.IHD_Geocentric,verticalDatum.DatumType);
}
/// <summary>
/// Create a vertical datum given a code.
/// </summary>
/// <param name="code">The EPSG code of the datum to create.</param>
/// <returns>An object that implements the IVerticalDatum interface.</returns>
public IVerticalDatum CreateVerticalDatum(string code)
{
if (code == null)
{
throw new ArgumentNullException("code");
}
string sqlQuery = "SELECT DATUM_NAME, DATUM_CODE, DATUM_TYPE, ORIGIN_DESCRIPTION, " +
"REALIZATION_EPOCH, ELLIPSOID_CODE, PRIME_MERIDIAN_CODE, " +
"AREA_OF_USE_CODE, DATUM_SCOPE, REMARKS, DATA_SOURCE, INFORMATION_SOURCE " +
"FROM Datum " +
"WHERE DATUM_CODE={0}";
sqlQuery = String.Format(System.Globalization.CultureInfo.InvariantCulture, sqlQuery, code);
IDataReader reader = Database.ExecuteQuery(_databaseConnection, sqlQuery);
if (!reader.Read())
{
throw new ArgumentException(String.Format(System.Globalization.CultureInfo.InvariantCulture, "Could not find datum {0}.", code));
}
;
string datumtype = reader["DATUM_TYPE"].ToString();
string name = reader["DATUM_NAME"].ToString();
string remarks = reader["REMARKS"].ToString();
string datasource = reader["DATA_SOURCE"].ToString(); // should always be EPSG?
Database.CheckOneRow(reader, code, "Vertical Datum");
if (datumtype.ToLower() != "vertical")
{
throw new ArgumentException(String.Format(System.Globalization.CultureInfo.InvariantCulture, "Requested datum ({0}) is not a vertical datum.", code));
}
IVerticalDatum verticalDatum = new VerticalDatum(DatumType.IVD_GeoidModelDerived, remarks, code, "EPSG", name, "", "");
return(verticalDatum);
}
/// <summary>
/// Create a vertical datum given a code.
/// </summary>
/// <param name="code">The EPSG code of the datum to create.</param>
/// <returns>An object that implements the IVerticalDatum interface.</returns>
public IVerticalDatum CreateVerticalDatum(string code)
{
if (code==null)
{
throw new ArgumentNullException("code");
}
string sqlQuery = "SELECT DATUM_NAME, DATUM_CODE, DATUM_TYPE, ORIGIN_DESCRIPTION, "+
"REALIZATION_EPOCH, ELLIPSOID_CODE, PRIME_MERIDIAN_CODE, "+
"AREA_OF_USE_CODE, DATUM_SCOPE, REMARKS, DATA_SOURCE, INFORMATION_SOURCE "+
"FROM Datum "+
"WHERE DATUM_CODE={0}";
sqlQuery = String.Format(sqlQuery,code);
IDataReader reader = Database.ExecuteQuery(_databaseConnection, sqlQuery);
if (!reader.Read())
{
throw new ArgumentException(String.Format("Could not find datum {0}.",code));
};
string datumtype= reader["DATUM_TYPE"].ToString();
string name = reader["DATUM_NAME"].ToString();
string remarks = reader["REMARKS"].ToString();
string datasource = reader["DATA_SOURCE"].ToString();// should always be EPSG?
Database.CheckOneRow(reader, code, "Vertical Datum");
if (datumtype.ToLower()!="vertical")
{
throw new ArgumentException(String.Format("Requested datum ({0}) is not a vertical datum.", code));
}
IVerticalDatum verticalDatum = new VerticalDatum(DatumType.IVD_GeoidModelDerived, remarks, code,"EPSG",name,"","");
return verticalDatum;
}
private static IVerticalDatum ReadVerticalDatum(XmlTextReader reader)
{
/*
* <?xml version="1.0"?>
<IVerticalDatum DatumType="2005">
<IInfo AuthorityCode="5101" Abbreviation="ODN" Authority="EPSG" Name="Ordnance Datum Newlyn"/>
</IVerticalDatum>
*/
if (!(reader.NodeType==XmlNodeType.Element && reader.Name=="CS_VerticalDatum"))
{
throw new ParseException(String.Format(System.Globalization.CultureInfo.InvariantCulture, "Expected a IVerticalDatum but got a {0} at line {1} col {2}",reader.Name,reader.LineNumber,reader.LinePosition));
}
string datumTypeString = reader.GetAttribute("DatumType");
DatumType datumType = (DatumType)Enum.Parse(typeof(DatumType),datumTypeString,true);
string authority="",authorityCode="",abbreviation="",name="";
reader.Read();
ReadInfo(reader, ref authority,ref authorityCode, ref abbreviation, ref name);
reader.Read();
IVerticalDatum verticalDatum = new VerticalDatum(datumType, "",authorityCode,authority,name, "",abbreviation);
return verticalDatum;
}
private static IVerticalDatum ReadVerticalDatum(WktStreamTokenizer tokenizer)
{
//VERT_DATUM["Ordnance Datum Newlyn",2005,AUTHORITY["5101","EPSG"]]
tokenizer.ReadToken("[");
string datumName=tokenizer.ReadDoubleQuotedWord();
tokenizer.ReadToken(",");
tokenizer.NextToken();
string datumTypeNumber = tokenizer.GetStringValue();
tokenizer.ReadToken(",");
string authority="";
string authorityCode="";
tokenizer.ReadAuthority(ref authority, ref authorityCode);
DatumType datumType = (DatumType)Enum.Parse(typeof(DatumType),datumTypeNumber);
IVerticalDatum verticalDatum = new VerticalDatum(datumType,"",authorityCode,authority,datumName,"","");
tokenizer.ReadToken("]");
return verticalDatum;
}
