/// <summary>
/// Gets the unit of a type.
/// </summary>
/// <param name="specTypeId">Identifier of the spec.</param>
/// <returns>The Unit object.</returns>
public IFCUnit GetIFCProjectUnit(ForgeTypeId specTypeId)
{
IFCUnit projectUnit = null;
if (m_ProjectUnitsDictionary.TryGetValue(specTypeId, out projectUnit))
{
return(projectUnit);
}
else
{
//default units
if (specTypeId.Equals(SpecTypeId.Length))
{
IFCUnit unit = IFCUnit.ProcessIFCDefaultUnit(specTypeId, UnitSystem.Metric, UnitTypeId.Meters, 1.0 / 0.3048);
m_ProjectUnitsDictionary[specTypeId] = unit;
return(unit);
}
else if (specTypeId.Equals(SpecTypeId.Area))
{
IFCUnit projectLengthUnit = GetIFCProjectUnit(SpecTypeId.Length);
UnitSystem unitSystem = projectLengthUnit.UnitSystem;
ForgeTypeId unitName = unitSystem == UnitSystem.Metric ?
UnitTypeId.SquareMeters : UnitTypeId.SquareFeet;
double scaleFactor = unitSystem == UnitSystem.Metric ?
(1.0 / 0.3048) * (1.0 / 0.3048) : 1.0;
IFCUnit unit = IFCUnit.ProcessIFCDefaultUnit(specTypeId, unitSystem, unitName, scaleFactor);
m_ProjectUnitsDictionary[specTypeId] = unit;
return(unit);
}
else if (specTypeId.Equals(SpecTypeId.Volume))
{
IFCUnit projectLengthUnit = GetIFCProjectUnit(SpecTypeId.Length);
UnitSystem unitSystem = projectLengthUnit.UnitSystem;
ForgeTypeId unitName = unitSystem == UnitSystem.Metric ?
UnitTypeId.CubicMeters : UnitTypeId.CubicFeet;
double scaleFactor = unitSystem == UnitSystem.Metric ?
(1.0 / 0.3048) * (1.0 / 0.3048) * (1.0 / 0.3048) : 1.0;
IFCUnit unit = IFCUnit.ProcessIFCDefaultUnit(specTypeId, unitSystem, unitName, scaleFactor);
m_ProjectUnitsDictionary[specTypeId] = unit;
return(unit);
}
else if (specTypeId.Equals(SpecTypeId.Angle))
{
IFCUnit unit = IFCUnit.ProcessIFCDefaultUnit(specTypeId, UnitSystem.Metric, UnitTypeId.Degrees, Math.PI / 180);
m_ProjectUnitsDictionary[specTypeId] = unit;
return(unit);
}
else if (specTypeId.Equals(SpecTypeId.HvacTemperature))
{
IFCUnit unit = IFCUnit.ProcessIFCDefaultUnit(specTypeId, UnitSystem.Metric, UnitTypeId.Kelvin, 1.0);
m_ProjectUnitsDictionary[specTypeId] = unit;
return(unit);
}
}
return(null);
}
/// <summary>
/// Gets the unit of a type.
/// </summary>
/// <param name="unitType">The unit type.</param>
/// <returns>The Unit object.</returns>
public IFCUnit GetIFCProjectUnit(UnitType unitType)
{
IFCUnit projectUnit = null;
if (m_ProjectUnitsDictionary.TryGetValue(unitType, out projectUnit))
{
return(projectUnit);
}
else
{
//default units
if (unitType == UnitType.UT_Length)
{
IFCUnit unit = IFCUnit.ProcessIFCDefaultUnit(unitType, UnitSystem.Metric, UnitName.DUT_METERS, 1.0 / 0.3048);
m_ProjectUnitsDictionary[unitType] = unit;
return(unit);
}
else if (unitType == UnitType.UT_Area)
{
IFCUnit projectLengthUnit = GetIFCProjectUnit(UnitType.UT_Length);
UnitSystem unitSystem = projectLengthUnit.UnitSystem;
UnitName unitName = unitSystem == UnitSystem.Metric ?
UnitName.DUT_SQUARE_METERS : UnitName.DUT_SQUARE_FEET;
double scaleFactor = unitSystem == UnitSystem.Metric ?
(1.0 / 0.3048) * (1.0 / 0.3048) : 1.0;
IFCUnit unit = IFCUnit.ProcessIFCDefaultUnit(unitType, unitSystem, unitName, scaleFactor);
m_ProjectUnitsDictionary[unitType] = unit;
return(unit);
}
else if (unitType == UnitType.UT_Volume)
{
IFCUnit projectLengthUnit = GetIFCProjectUnit(UnitType.UT_Length);
UnitSystem unitSystem = projectLengthUnit.UnitSystem;
UnitName unitName = unitSystem == UnitSystem.Metric ?
UnitName.DUT_CUBIC_METERS : UnitName.DUT_CUBIC_FEET;
double scaleFactor = unitSystem == UnitSystem.Metric ?
(1.0 / 0.3048) * (1.0 / 0.3048) * (1.0 / 0.3048) : 1.0;
IFCUnit unit = IFCUnit.ProcessIFCDefaultUnit(unitType, unitSystem, unitName, scaleFactor);
m_ProjectUnitsDictionary[unitType] = unit;
return(unit);
}
else if (unitType == UnitType.UT_Angle)
{
IFCUnit unit = IFCUnit.ProcessIFCDefaultUnit(unitType, UnitSystem.Metric, UnitName.DUT_DECIMAL_DEGREES, Math.PI / 180);
m_ProjectUnitsDictionary[unitType] = unit;
return(unit);
}
else if (unitType == UnitType.UT_HVAC_Temperature)
{
IFCUnit unit = IFCUnit.ProcessIFCDefaultUnit(unitType, UnitSystem.Metric, UnitName.DUT_KELVIN, 1.0);
m_ProjectUnitsDictionary[unitType] = unit;
return(unit);
}
}
return(null);
}
