Test instructions

Documentation Code	Test Title	Exchange Code	Test Code	Author	Data Owner	Version	Date
IFC4.3AbRV_E2a_PJ01	Project Setup	E2a (TRAS)	PJ01	Evandro Alfieri	RFI	1.0	DD.MM.YYYY

Summary (Intent)

This test case addresses the export of the required IFC entities for the exchange of project setup information.

• Refer to Test Case Imports to know the prerequisites for the present test.

• The Expected Results section lists the material that will be used to assess the fulfilment of capabilities.

• This is a test-driven process: refer to the Validation Criteria to understand what is required by the test

Itemised Roots

The Test instruction addresses the import and export of the following IFC Entities & Concept Templates:

IFC Entities

These entities represent a test-specific subset of the wider AbRV_E2a exchange and the overall AbRV MVD. The scope of the test shall not be used as a definitive scope of the exchange, or of the MVD

• Model setup:
  1. IfcProject
  2. IfcSIUnit
  3. IfcGeometricRepresentationContext
  4. IfcUnitAssignment

Concept Templates

These concept templates represent a test-specific subset of the wider AbRV_Ex exchange and the overall AbRV MVD, that must be correctly exported to meet the validation criteria. The scope of the test shall not be used as a definitive scope of the exchange, or of the MVD

• Project Context
  • Project Representation Context
  • Project Units

Model Dataset

All information required to fulfil the test are captured in these Test Instructions. See Entities Table

Test Case Imports

This test case has no prerequisites. All validation criteria to be verified are listed of these Test Instructions.

Expected Results

For certification of capabilities the only source will be:

• n. 1 IFC file containing the information as requested. The file shall be named using the following syntax: MVDCodeExchangeCodeTestCode_SoftwareVendor.ifc (Example: IFC4.3AbRV_E2a_PJ01_AmazingSoft.ifc)

Validation criteria

For this test case to be considered passed all capabilities listed in this section shall be verified, with no exception.

General

RULE ID	CRITERIA	VALUE [examples]	ENTITY (if applicable)	CT (if applicable)
GENE_00	All validation criteria of precondition's tests shall be verified		na	na
GENE_01	All requested entities (and attributes) exist in file	As per Entities Table	na	na

Entities Table

Element	Attribute	Value	Notes
IfcProject	GlobalId		Machine-generated, according to this specification
	Name	'IFC4.3AbRV Project'
	Description	'Project setup'
	RepresentationContexts		Points to IfcGeometricRepresentationContext
	UnitsInContext		Points to IfcUnitAssignment
IfcGeometricRepresentationContext	ContextType	'Model'
	CoordinateSpaceDimension	3
	Precision	1.00E-06
	WorldCoordinateSystem		Points to IfcAxis2Placement3D
	TrueNorth		Points to Y direction (0., 1., 0.)
IfcAxis2Placement3D	Location		Points to IfcCartesianPoint (0., 0., 0.)
	Axis		Points to Z direction (0., 0., 1.)
	RefDirection		Points to X direction (1., 0., 0.)

Project Setup

RULE ID	CRITERIA	VALUE [examples]	ENTITY (if applicable)	CT (if applicable)
ORIG_01	Origin of Coordinate System is set as requested	[(0., 0., 0.)]		Project Global Positioning
ORIG_02	True north is set as requested	[(0., 1., 0.)]		Project Global Positioning
DIST_01	Unit of measure for all distances	[meter]		Project Units
ANGL_01	Unit of measure all angles	[radian]		Project Units

Acceptance criteria For the Project Setup capability, the validation procedure must verify that:

• IfcProject entity is the top most element in the project structure. It represents the bare minimum of an IFC file exchange with no content, only boilerplate code.
• IfcUnitAssignment entity is used to define the global units for measures and values, when the units are not otherwise defined. For the specific units required by this test refer to the table below.
• IfcGeometricRepresentationContext entity is used to define the is the global context of the geometry.

Example of SI unit encoding

#17 = IFCUNITASSIGNMENT((#18, #19, #20, #24));
#18 = IFCSIUNIT(*, .LENGTHUNIT., $, .METRE.);
#19 = IFCSIUNIT(*, .AREAUNIT., $, .SQUARE_METRE.);
#20 = IFCSIUNIT(*, .VOLUMEUNIT., $, .CUBIC_METRE.);

Example of non-SI unit used for angles: degree instead of radian

#22 = IFCSIUNIT(*, .PLANEANGLEUNIT., $, .RADIAN.);
#23 = IFCMEASUREWITHUNIT(IFCPLANEANGLEMEASURE(0.017453292519943295), #22);
#24 = IFCCONVERSIONBASEDUNIT(#1, .PLANEANGLEUNIT., 'degree', #23);