public void Test_Constructor()
{
VerticalDatum datum = VerticalDatum.Ellipsoidal;
IAxisInfo axis = AxisInfo.Altitude;
ILinearUnit unit = LinearUnit.Meters;
VerticalCoordinateSystem vcs = new VerticalCoordinateSystem("test1",datum, axis, unit);
Assertion.AssertEquals("Test1",datum, vcs.VerticalDatum);
Assertion.AssertEquals("Test2",1.0,vcs.VerticalUnit.MetersPerUnit);
Assertion.AssertEquals("ctor. 3",unit, vcs.VerticalUnit);
Assertion.AssertEquals("ctor. 4",axis, vcs.GetAxis(0));
}
/// <summary>
/// Creates a vertical coordinate system from a datum and linear units
/// </summary>
/// <param name="name">The name of the vertical coordinate system.</param>
/// <param name="verticalDatum">The vertical datum to use.</param>
/// <param name="verticalUnit">The units to use.</param>
/// <param name="axis">The axis to use.</param>
/// <returns>An an object that implements the IVerticalCoordinateSystem interface.</returns>
public IVerticalCoordinateSystem CreateVerticalCoordinateSystem(string name, IVerticalDatum verticalDatum, ILinearUnit verticalUnit, IAxisInfo axis)
{
if (name == null)
{
throw new ArgumentNullException("name");
}
if (verticalDatum == null)
{
throw new ArgumentNullException("verticalDatum");
}
if (verticalUnit == null)
{
throw new ArgumentNullException("verticalUnit");
}
VerticalCoordinateSystem verticalCS = new VerticalCoordinateSystem(name, verticalDatum, axis, verticalUnit);
return(verticalCS);
}
/// <summary>
/// Creates a new vertical coordinate system object from a code.
/// </summary>
/// <param name="code">The EPSG code.</param>
/// <returns>An object that implements the IVerticalCoordinateSystem interface.</returns>
public IVerticalCoordinateSystem CreateVerticalCoordinateSystem(string code)
{
if (code == null)
{
throw new ArgumentNullException("code");
}
string sqlQuery = "SELECT COORD_REF_SYS_NAME, COORD_REF_SYS_CODE, AREA_OF_USE_CODE, " +
" COORD_REF_SYS_KIND, DATUM_CODE, COORD_SYS_CODE, " +
" SOURCE_GEOGCRS_CODE, PROJECTION_CONV_CODE, CMPD_VERTCRS_CODE, CRS_SCOPE, CMPD_HORIZCRS_CODE, DATA_SOURCE, REMARKS " +
"FROM [Coordinate Reference System] " +
"WHERE COORD_REF_SYS_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, "Geographic Coordinate System with a code {0} not found in the CRS table in the EPSG database.", code));
}
string coordSysCode = reader["COORD_SYS_CODE"].ToString().ToLower();
string coordSysName = reader["COORD_REF_SYS_NAME"].ToString();
string name = reader["COORD_REF_SYS_NAME"].ToString();
string verticalDatumCode = reader["DATUM_CODE"].ToString();
string coordRefKind = reader["COORD_REF_SYS_KIND"].ToString();
string remarks = reader["REMARKS"].ToString();
string datasource = reader["DATA_SOURCE"].ToString(); // should always be EPSG??
Database.CheckOneRow(reader, code, "Coordinate Reference System");
if (coordRefKind.ToLower() != "vertical")
{
throw new ArgumentException(String.Format(System.Globalization.CultureInfo.InvariantCulture, "CRS code {0} is not a projected coordinate system but a {1}.", code, coordRefKind));
}
IVerticalDatum verticalDatum = this.CreateVerticalDatum(verticalDatumCode);
VerticalCoordinateSystem vrs = new VerticalCoordinateSystem(coordSysName, verticalDatum, remarks, datasource, code, "", "");
return(vrs);
}
/// <summary>
/// Creates a vertical coordinate system from a datum and linear units
/// </summary>
/// <param name="name">The name of the vertical coordinate system.</param>
/// <param name="verticalDatum">The vertical datum to use.</param>
/// <param name="verticalUnit">The units to use.</param>
/// <param name="axis">The axis to use.</param>
/// <returns>An an object that implements the IVerticalCoordinateSystem interface.</returns>
public IVerticalCoordinateSystem CreateVerticalCoordinateSystem(string name, IVerticalDatum verticalDatum, ILinearUnit verticalUnit, IAxisInfo axis)
{
if (name==null)
{
throw new ArgumentNullException("name");
}
if (verticalDatum==null)
{
throw new ArgumentNullException("verticalDatum");
}
if (verticalUnit==null)
{
throw new ArgumentNullException("verticalUnit");
}
VerticalCoordinateSystem verticalCS = new VerticalCoordinateSystem(name, verticalDatum, axis, verticalUnit);
return verticalCS;
}
/// <summary>
/// Creates a new vertical coordinate system object from a code.
/// </summary>
/// <param name="code">The EPSG code.</param>
/// <returns>An object that implements the IVerticalCoordinateSystem interface.</returns>
public IVerticalCoordinateSystem CreateVerticalCoordinateSystem(string code)
{
if (code==null)
{
throw new ArgumentNullException("code");
}
string sqlQuery = "SELECT COORD_REF_SYS_NAME, COORD_REF_SYS_CODE, AREA_OF_USE_CODE, "+
" COORD_REF_SYS_KIND, DATUM_CODE, COORD_SYS_CODE, "+
" SOURCE_GEOGCRS_CODE, PROJECTION_CONV_CODE, CMPD_VERTCRS_CODE, CRS_SCOPE, CMPD_HORIZCRS_CODE, DATA_SOURCE, REMARKS "+
"FROM [Coordinate Reference System] "+
"WHERE COORD_REF_SYS_CODE = {0}";
sqlQuery = String.Format(sqlQuery,code);
IDataReader reader = Database.ExecuteQuery(_databaseConnection, sqlQuery);
if (!reader.Read())
{
throw new ArgumentException(String.Format("Geographic Coordinate System with a code {0} not found in the CRS table in the EPSG database.",code));
}
string coordSysCode = reader["COORD_SYS_CODE"].ToString().ToLower();
string coordSysName = reader["COORD_REF_SYS_NAME"].ToString();
string name = reader["COORD_REF_SYS_NAME"].ToString();
string verticalDatumCode = reader["DATUM_CODE"].ToString();
string coordRefKind = reader["COORD_REF_SYS_KIND"].ToString();
string remarks = reader["REMARKS"].ToString();
string datasource = reader["DATA_SOURCE"].ToString(); // should always be EPSG??
Database.CheckOneRow(reader,code,"Coordinate Reference System");
if (coordRefKind.ToLower() != "vertical")
{
throw new ArgumentException(String.Format("CRS code {0} is not a projected coordinate system but a {1}.",code,coordRefKind));
}
IVerticalDatum verticalDatum = this.CreateVerticalDatum(verticalDatumCode);
VerticalCoordinateSystem vrs = new VerticalCoordinateSystem(coordSysName, verticalDatum,remarks,datasource,code,"","");
return vrs;
}
private static IVerticalCoordinateSystem ReadVerticalCoordinateSystem(XmlTextReader reader)
{
/*
* <?xml version="1.0"?>
<IVerticalCoordinateSystem>
<IInfo AuthorityCode="5701" Abbreviation="ODN" Authority="EPSG" Name="Newlyn"/>
<IAxisInfo Name="Up" Orientation="UP"/>
<IVerticalDatum DatumType="2005">
<IInfo AuthorityCode="5101" Abbreviation="ODN" Authority="EPSG" Name="Ordnance Datum Newlyn"/>
</IVerticalDatum>
<ILinearUnit MetersPerUnit="1">
<IInfo AuthorityCode="9001" Abbreviation="m" Authority="EPSG" Name="metre"/>
</ILinearUnit>
</IVerticalCoordinateSystem>
*/
if (!(reader.NodeType==XmlNodeType.Element && reader.Name=="CS_VerticalCoordinateSystem"))
{
throw new ParseException(String.Format(System.Globalization.CultureInfo.InvariantCulture, "Expected a IVerticalCoordinateSystem but got a {0} at line {1} col {2}",reader.Name,reader.LineNumber,reader.LinePosition));
}
string authority="",authorityCode="",abbreviation="",name="";
reader.Read();
ReadInfo(reader, ref authority,ref authorityCode, ref abbreviation, ref name);
//reader.Read();
ArrayList list = new ArrayList();
while (reader.NodeType==XmlNodeType.Element && reader.Name=="CS_AxisInfo")
{
IAxisInfo axis = ReadAxisInfo( reader );
list.Add(axis);
reader.Read();
}
IAxisInfo[] axisInfos = new IAxisInfo[list.Count];
axisInfos = (IAxisInfo[])list.ToArray(typeof(IAxisInfo));
IVerticalDatum verticalDatum = ReadVerticalDatum( reader );
ILinearUnit linearUnit = ReadLinearUnit( reader );
reader.Read();
reader.Read();
VerticalCoordinateSystem verticalCoordinateSystem = new VerticalCoordinateSystem(name, verticalDatum, axisInfos[0],linearUnit, "", authority, authorityCode,"",abbreviation);
return verticalCoordinateSystem;
}
private static IVerticalCoordinateSystem ReadVerticalCoordinateSystem(WktStreamTokenizer tokenizer)
{
/*
VERT_CS["Newlyn",
VERT_DATUM["Ordnance Datum Newlyn",2005,AUTHORITY["EPSG","5101"]]
UNIT["metre",1,AUTHORITY["EPSG","9001"]]
AUTHORITY["EPSG","5701"]
*/
tokenizer.ReadToken("[");
string name=tokenizer.ReadDoubleQuotedWord();
tokenizer.ReadToken(",");
tokenizer.ReadToken("VERT_DATUM");
IVerticalDatum verticalDatum = ReadVerticalDatum(tokenizer);
tokenizer.ReadToken("UNIT");
IUnit unit = ReadUnit(tokenizer);
string authority="";
string authorityCode="";
tokenizer.ReadAuthority(ref authority, ref authorityCode);
tokenizer.ReadToken("]");
IVerticalCoordinateSystem verticalCS = new VerticalCoordinateSystem(name,verticalDatum,"",authority,authorityCode,"","");
return verticalCS;
}