public virtual bool IsVerticalDatum(OgcDatumType type)
{
return(type == OgcDatumType.VerticalOther ||
type == OgcDatumType.VerticalOrthometric ||
type == OgcDatumType.VerticalEllipsoidal ||
type == OgcDatumType.VerticalAltitudeBarometric ||
type == OgcDatumType.VerticalNormal ||
type == OgcDatumType.VerticalGeoidModelDerived ||
type == OgcDatumType.VerticalDepth);
}
private void WriteBasicDatum(IDatum entity, WktKeyword keyword, OgcDatumType ogcDatumType)
{
Contract.Requires(entity != null);
Write(keyword);
WriteOpenParenthesis();
WriteQuoted(entity.Name);
WriteComma();
WriteValue((int)ogcDatumType);
if (null != entity.Authority)
{
WriteComma();
Write(entity.Authority);
}
WriteCloseParenthesis();
}
public IDatum ReadBasicDatumFromParams(OgcDatumType defaultDatumType)
{
Contract.Ensures(Contract.Result <IDatum>() != null);
IAuthorityTag authority = null;
var name = String.Empty;
var datumType = OgcDatumType.None;
foreach (var parameter in ReadParams())
{
if (parameter is string)
{
name = (string)parameter;
}
else if (parameter is IAuthorityTag)
{
authority = (IAuthorityTag)parameter;
}
else if (parameter is double)
{
datumType = (OgcDatumType)(int)(double)parameter;
}
else if (parameter is int)
{
datumType = (OgcDatumType)(int)parameter;
}
}
if (null != authority)
{
var datum = Options.GetDatum(authority);
if (null != datum)
{
return(datum);
}
}
return(new OgcDatum(
name,
datumType,
authority
));
}
/// <summary>
/// Constructs a local datum.
/// </summary>
/// <param name="name">The datum name.</param>
/// <param name="type">The datum type code.</param>
/// <param name="authority">The authority.</param>
public OgcDatum(string name, OgcDatumType type, IAuthorityTag authority)
: base(name, authority)
{
Contract.Requires(name != null);
OgcType = type;
}
/// <summary>
/// Constructs a local datum.
/// </summary>
/// <param name="name">The datum name.</param>
/// <param name="type">The datum type code.</param>
/// <param name="authority">The authority.</param>
public OgcDatum(string name, OgcDatumType type, IAuthorityTag authority)
: base(name, authority)
{
Contract.Requires(name != null);
OgcType = type;
}
