(test template)
| Test code | Test author | Test dataset source | Test direction |
|---|---|---|---|
| AL22 | Evandro Alfieri | RFI | Export |
This test case addresses the export of the required IFC entities for the exchange of data related to two railway track alignments without cant.
Main IFC concept templates involved in this test
- Project Global Positioning
- Alignment Layout
- Spatial Decomposition
- Spatial Containment
- Alignment Geometry
- Alignment Geometry Gradient
All validation criteria (and usages) of prerequisites' tests shall be verified for this test too (regression test principle). Prerequisites for the present test case are listed below.
| Test code | Test title | Comments |
|---|---|---|
| PJ01 | Project Setup | none |
| GL01 | Global Positioning RFI dataset | none |
This test case utilises the dataset collected in the Dataset folder and summarised in the table below. For more details on each item see Dataset description.
| Filename | Type (format) | Description |
|---|---|---|
| LineLayout | figure (svg) | Schematic line layout of the test case |
| Alignment1_horizontal | csv | Alignment parameters for horizontal segments of the Primary Route |
| Alignment2_horizontal | csv | Alignment parameters for horizontal segments of the Diverted Route |
| Alignment1_vertical | csv | Alignment parameters for vertical segments of the Primary Route |
| Alignment2_vertical | csv | Alignment parameters for vertical segments of the Diverted Route |
⚡ For this test case to be considered passed, all criteria listed in this section, and the ones of prerequisites tests shall be verified. ⚡
General
| RULE ID | CRITERIA | VALUE [examples] |
|---|---|---|
| GENE_00 | All validation criteria of precondition's tests shall be verified | |
| GENE_01 | All requested entities (and attributes) exist in file | As per Entities Table |
| Element | Attribute | Value | Notes |
|---|---|---|---|
| IfcAlignment | Name | Alignment 1_Primary route | |
| ObjectType | Railway track alignment | ||
| PredefinedType | USERDEFINED | ||
| IfcAlignment | Name | Alignment 2_Diverted route | |
| ObjectType | Railway track alignment | ||
| PredefinedType | USERDEFINED | ||
| IfcAlignmentHorizontal | Name | AH1 | |
| IfcAlignmentVertical | Name | AV1 | |
| IfcAlignmentHorizontal | Name | AH2 | |
| IfcAlignmentVertical | Name | AV2 | |
| IfcSite | Name | Sito | |
| Description | 'One of the many sites that can be present in the file' | ||
| IfcRailway | Name | LO1336 | |
| Description | Foligno | ||
| ObjectType | Località | ||
| PredefinedType | USERDEFINED | ||
| CompositionType | ELEMENT |
Railway alignment (without cant)
Acceptance criteria: For the Railway alignment (without cant) capability, the validation procedure must verify that all the following validation criteria are satisfied.
| RULE ID | CRITERIA | VALUE [examples] |
|---|---|---|
| SITE_00 | All IfcAlignment shall always be contained in an IfcSite | |
| ALIG_00 | Alignment layout structure is verified | See steps |
| ALIG_01 | Number of alignments contained in file | [2] |
| ALIG_02 | Parameters of alignment segments are verified | As per Alignment Table |
| ALIG_03 | Alignment geometric compliance is verified | As per Alignment geometric compliance document |
| DIST_02 | Required precision for length of alignment's segments | [0,0001] or [1.E-4] |
| ANGL_02 | Required precision for angles and slope of alignment's segments | [0,000001] or [1.E-6] |
ALIG_00 steps
| STEP ID | STEP |
|---|---|
| ALIG_00.1 | Each IfcAlignment must nest exactly 1 IfcAlignmentHorizontal |
| ALIG_00.2 | Each IfcAlignment must nest at most 1 IfcAlignmentVertical |
| ALIG_00.3 | Each IfcAlignment must nest exactly 1 IfcAlignmentVertical |
| ALIG_00.6 | Each IfcAlignmentHorizontal must be nested only by 1 IfcAlignment |
| ALIG_00.7 | Each IfcAlignmentVertical must be nested only by 1 IfcAlignment |
| ALIG_00.9 | Each IfcAlignment must nest only the following entities: IfcAlignmentHorizontal, IfcAlignmentVertical, IfcAlignmentCant, IfcReferent, IfcAlignment |
| ALIG_00.10 | Each IfcAlignmentHorizontal nests a list of IfcAlignmentSegment, each of which has DesignParameters typed as IfcAlignmentHorizontalSegment |
| ALIG_00.11 | Each IfcAlignmentVertical nests a list of IfcAlignmentSegment, each of which has DesignParameters typed as IfcAlignmentVerticalSegment |
Details for DIST_02 and ANGL_02
Precision for length (DIST_002) applies to the values of the following attributes:
IfcAlignmentHorizontalSegment.StartPointIfcAlignmentHorizontalSegment.SegmentLengthIfcAlignmentVerticalSegment.StartDistAlongIfcAlignmentVerticalSegment.HorizontalLengthIfcAlignmentCantSegment.StartDistAlongIfcAlignmentCantSegment.HorizontalLength
Precision for angles and slope (ANGL_002) applies to the values of the following attributes:
IfcAlignmentHorizontalSegment.StartDirection
Spatial (De)Composition
| RULE ID | CRITERIA | VALUE [examples] |
|---|---|---|
| SDEC_01 | Spatial decomposition is verified | As per Spatial (De)Composition Table |
Acceptance criteria: For the Spatial decomposition capability, the validation procedure must verify that a Parent Element of the requested type aggregates (via
IfcRelAggregates) exactly a given number of Child Elements of the requested type, no more and no less.
SDEC_01 details: Spatial decomposition is verified
- Given a set of elements taken from the Spatial (De)Composition Table
- Then the Parent Element, and optionally the Parent Element Type, exists
- And the Parent Element must aggregate at least a number within [MinSize..MaxSize] of the requested Child Element
| Parent Element | Parent Element Type | Parent Element Name | MinSize | MaxSize | Child Element | Child Element Type | Child Element Name |
|---|---|---|---|---|---|---|---|
| IfcProject | IFC4.3AbRV Project | 1 | 1 | IfcSite | Sito | ||
| IfcSite | Sito | 1 | 1 | IfcRailway | LO1336 |
Bullet point example:
- IfcProject (Name: IFC4.3AbRV Project)
- IfcSite (Name: Sito)
- IfcRailway (Name: LO1336)
- IfcSite (Name: Sito)
Spatial Containment
| RULE ID | CRITERIA | VALUE [examples] |
|---|---|---|
| SCON_01 | Spatial containment is verified | As per Spatial Containment Table |
Acceptance criteria: For the Spatial containment capability, the validation procedure must verify that a Spatial Element of the requested type contains (via
IfcRelContainedInSpatialStructure) exactly a given number of Elements of the requested type, no more and no less.
SCON_01 details: Spatial containment is verified
- Given a set of elements taken from the Spatial Containment Table
- Then the Spatial Element, and optionally the Spatial Element Type, exists
- And the Spatial Element must contain at least a number within [MinSize..MaxSize] of the requested Element
| Spatial Element | Spatial Element Type | MinSize | MaxSize | Element | Element Type |
|---|---|---|---|---|---|
| IfcSite | 2 | 2 | IfcAlignment | Railway track alignment |
Bullet point example:
- IfcProject (Name: IFC4.3AbRV Project)
- IfcSite (Name: Sito)
IfcAlignment(Name: Alignment 1_Primary route)IfcAlignment(Name: Alignment 2_Diverted route)- IfcRailway (Name: LO1336)
- IfcSite (Name: Sito)
...
The parameters contained in the following sections are meant to support the validation of the correct creation of the alignment, based on the dataset provided in this test.
IMPORTANT: These parameters can be used also to support the validation of import into a receiving application. To do so, IfcReferent entities shall be above have to be defined.
Alignment 1_Primary route
| ID | CRITERIA | VALUE |
|---|---|---|
| ALIG_10 | Horizontal Starting point Mileage (pk) | 0+000 |
| ALIG_11 | Horizontal Starting point DistAlong | 0.0000 |
| ALIG_12 | Horizontal Starting point X | 452413.9199 |
| ALIG_13 | Horizontal Starting point Y | 4539456.4011 |
| ALIG_14 | Vertical Starting point Mileage | 0+000 |
| ALIG_15 | Vertical Starting point Z | 5.0000 |
| ALIG_16 | Horizontal Ending point Mileage (pk) | 0+876.3682 |
| ALIG_17 | Horizontal Ending point DistAlong | 876.3682 |
| ALIG_18 | Horizontal Ending point X | 453202.5241 |
| ALIG_19 | Horizontal Ending point Y | 4539831.9287 |
| ALIG_20 | Vertical Ending point Mileage | 0+876.3682 |
| ALIG_21 | Vertical Ending point Z | 2.0000 |
| ALIG_22 | Total 2D length of alignment (horizontal projection) | 876.3682 |
| ALIG_23 | Total 3D length of alignment | 876.3819 |
| ALIG_24 | Height difference between start and end point of alignment 3D curve | -3.0000 |
Alignment 2_Diverted route
| ID | CRITERIA | VALUE |
|---|---|---|
| ALIG_10 | Horizontal Starting point Mileage (pk) | 0+000 |
| ALIG_11 | Horizontal Starting point DistAlong | 0.0000 |
| ALIG_12 | Horizontal Starting point X | 452460.8898 |
| ALIG_13 | Horizontal Starting point Y | 4539473.5425 |
| ALIG_14 | Vertical Starting point Mileage | 0+000 |
| ALIG_15 | Vertical Starting point Z | 5.0000 |
| ALIG_16 | Horizontal Ending point Mileage (pk) | 0+828.0965 |
| ALIG_17 | Horizontal Ending point DistAlong | 828.0965 |
| ALIG_18 | Horizontal Ending point X | 453208.8311 |
| ALIG_19 | Horizontal Ending point Y | 4539818.3191 |
| ALIG_20 | Vertical Ending point Mileage | 0+828.0965 |
| ALIG_21 | Vertical Ending point Z | 2.0000 |
| ALIG_22 | Total 2D length of alignment (horizontal projection) | 828.0965 |
| ALIG_23 | Total 3D length of alignment | 828.1099 |
| ALIG_24 | Height difference between start and end point of alignment 3D curve | -3.0000 |