static string getSIUnitRepStr(IIfcUnit unitDef)
{
// Initialize the static Dicts, if it is still empty upon the first use. These Dicts do not need to be reset
setupUnitRep();
IIfcSIUnit siUnit = unitDef as IIfcSIUnit;
string unitRepStr = string.Empty;
m_SIUnitNameRep.TryGetValue(siUnit.Name, out unitRepStr);
if (siUnit.Prefix.HasValue)
{
string prefixStr = string.Empty;
m_SIPrefixRep.TryGetValue(siUnit.Prefix.Value, out prefixStr);
unitRepStr = prefixStr + unitRepStr;
}
return(unitRepStr);
}
public IfcLocationData(string path)
{
using (IfcStore model = IfcStore.Open(path))
{
if (model.SchemaVersion == XbimSchemaVersion.Ifc2X3)
{
Schema = "Ifc 2x3";
SchemaIsSupported = true;
}
else if (model.SchemaVersion == XbimSchemaVersion.Ifc4)
{
Schema = "Ifc4";
SchemaIsSupported = false;
return;
}
else
{
Schema = model.SchemaVersion.ToString();
SchemaIsSupported = false;
return;
}
IIfcProject project = model.Instances.FirstOrDefault <IIfcProject>();
string applicationFullname = project.OwnerHistory.OwningApplication.ApplicationFullName;
if (applicationFullname == null)
{
AuthoringTool = "N/A";
}
else
{
AuthoringTool = project.OwnerHistory.OwningApplication.ApplicationFullName;
}
IIfcSIUnit lengtUnit = project.UnitsInContext.Units.FirstOrDefault <IIfcSIUnit>(q => q.UnitType == IfcUnitEnum.LENGTHUNIT);
LengthUnit = lengtUnit.FullName;
IIfcSite site = model.Instances.FirstOrDefault <IIfcSite>();
if (site.RefElevation.HasValue)
{
refElevation = site.RefElevation.Value;
}
else
{
refElevation = double.NaN;
}
IIfcLocalPlacement placement = site.ObjectPlacement as IIfcLocalPlacement;
IIfcAxis2Placement3D axis2Placement = placement.RelativePlacement as IIfcAxis2Placement3D;
double x = axis2Placement.RefDirection.DirectionRatios.GetAt(0);
double y = axis2Placement.RefDirection.DirectionRatios.GetAt(1);
double angle = 360 - Math.Atan2(y, x) * 180 / Math.PI;
if (angle.Equals(360))
{
angle = 0;
}
Orientation = angle;
EW = axis2Placement.Location.Coordinates.GetAt(0);
NS = axis2Placement.Location.Coordinates.GetAt(1);
elevation = axis2Placement.Location.Coordinates.GetAt(2);
}
}
public static string GetSymbol(IIfcSIUnit unit)
{
string prefix = string.Empty;
if (unit.Prefix.HasValue)
{
prefix = unit.Prefix.Value switch
{
IfcSIPrefix.EXA => "E",
IfcSIPrefix.PETA => "P",
IfcSIPrefix.TERA => "T",
IfcSIPrefix.GIGA => "G",
IfcSIPrefix.MEGA => "M",
IfcSIPrefix.KILO => "k",
IfcSIPrefix.HECTO => "h",
IfcSIPrefix.DECA => "da",
IfcSIPrefix.DECI => "d",
IfcSIPrefix.CENTI => "c",
IfcSIPrefix.MILLI => "m",
IfcSIPrefix.MICRO => "µ",
IfcSIPrefix.NANO => "n",
IfcSIPrefix.PICO => "p",
IfcSIPrefix.FEMTO => "f",
IfcSIPrefix.ATTO => "a",
_ => throw new ArgumentOutOfRangeException("Unexpected SI unit prefix"),
};
}
string name = unit.Name switch
{
IfcSIUnitName.AMPERE => "A",
IfcSIUnitName.BECQUEREL => "Bq",
IfcSIUnitName.CANDELA => "cd",
IfcSIUnitName.COULOMB => "C",
IfcSIUnitName.CUBIC_METRE => "m³",
IfcSIUnitName.DEGREE_CELSIUS => "°C",
IfcSIUnitName.FARAD => "F",
IfcSIUnitName.GRAM => "g",
IfcSIUnitName.GRAY => "Gy",
IfcSIUnitName.HENRY => "H",
IfcSIUnitName.HERTZ => "Hz",
IfcSIUnitName.JOULE => "J",
IfcSIUnitName.KELVIN => "K",
IfcSIUnitName.LUMEN => "lm",
IfcSIUnitName.LUX => "lx",
IfcSIUnitName.METRE => "m",
IfcSIUnitName.MOLE => "mol",
IfcSIUnitName.NEWTON => "N",
IfcSIUnitName.OHM => "Ω",
IfcSIUnitName.PASCAL => "Pa",
IfcSIUnitName.RADIAN => "rad",
IfcSIUnitName.SECOND => "s",
IfcSIUnitName.SIEMENS => "S",
IfcSIUnitName.SIEVERT => "Sv",
IfcSIUnitName.SQUARE_METRE => "m²",
IfcSIUnitName.STERADIAN => "sr",
IfcSIUnitName.TESLA => "T",
IfcSIUnitName.VOLT => "V",
IfcSIUnitName.WATT => "W",
IfcSIUnitName.WEBER => "Wb",
_ => throw new ArgumentOutOfRangeException("Unexpected SI unit prefix"),
};
return(prefix + name);
}
public string GetSILengthUnit()
{
IIfcSIUnit si = _model.Instances.OfType <IIfcSIUnit>().Where(unit => unit.UnitType == IfcUnitEnum.LENGTHUNIT).First();
return(si.Prefix.ToString() + si.Name.ToString());
}
