8.11.3.6 IfcDimensionalExponents
RV ⓘ
AbV ⓘ
{ .extDef}
NOTE Definition according to ISO/CD 10303-41:1992
The dimensionality of any quantity can be expressed as a product of powers of the dimensions of base quantities. The dimensional exponents entity defines the powers of the dimensions of the base quantities. All the physical quantities are founded on seven base quantities (ISO 31 (clause 2)).NOTE Length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity are the seven base quantities.EXAMPLE A length of 2 millimetres has a length exponent of 1. The remaining exponents are equal to 0.EXAMPLE A velocity of 2 millimetres per second has a length exponent of 1 and a time exponent of -1. The remaining exponents are equal to 0.NOTE Corresponding STEP name: dimensional_exponents, please refer to ISO/IS 10303-41 for the final definition of the formal standard.HISTORY New entity in IFC1.5.1.
#
Attribute
Type
Description
IfcDimensionalExponents
(7)
1
LengthExponent
INTEGER
The power of the length base quantity.
2
MassExponent
INTEGER
The power of the mass base quantity.
3
TimeExponent
INTEGER
The power of the time base quantity.
4
ElectricCurrentExponent
INTEGER
The power of the electric current base quantity.
5
ThermodynamicTemperatureExponent
INTEGER
The power of the thermodynamic temperature base quantity.
6
AmountOfSubstanceExponent
INTEGER
The power of the amount of substance base quantity.
7
LuminousIntensityExponent
INTEGER
The power of the luminous intensity base quantity.
Table A ENTITY IfcDimensionalExponents ;
LengthExponent : INTEGER ;
MassExponent : INTEGER ;
TimeExponent : INTEGER ;
ElectricCurrentExponent : INTEGER ;
ThermodynamicTemperatureExponent : INTEGER ;
AmountOfSubstanceExponent : INTEGER ;
LuminousIntensityExponent : INTEGER ;
END_ENTITY ;
3 contributor(s):
Last change: Improve definition split (#876)
* bring back headers
headers were previously removed by mistake, now bringing them back
* add new lines and rename the tag
add the word 'short' in it
* unify newlines
make exactly one newline before and two after the tag
* resolving typos
Because bringing back headers required to go back in time to previous version, I'm now re-resolving the issues: #861, #860, #856 by ArturTomczak on 2024-07-16T16:07:28+02:00
Is this page difficult to understand? Let us know!
