IFC 4.3.0.1 (IFC4X3) development

Annex E Examples - UT_SpatialStructure_4

Example overview

UT_SpatialStructure_4

Intent

This UT establishes a spatial structure for the level crossing storyline. The intention is to serve as a skeleton for upcoming unit tests for this storyline.

It is based on the storylines SLLC-DD (IFC Rail phase 2) and bSFi_IR_SLRD_DD (IFC Infra Deployment)

Prerequisites

None

Content

This scenario covers the following concepts and/or IFC entities: - Georeferencing - IfcProjectedCRS - IfcMapConversion - Spatial structure - IfcSite - IfcRailway - IfcRoad - IfcFacilityPart with correct PredefinedType - IfcRelInterferesElements - Geometry - IfcExtrudedAreaSolid - IfcBoundingBox

Situation

The figure below shows the extent of the IfcSite and its georeferenced location.

Figure 261096da-8e24-4e22-92aa-0da9dd64a8ca

The figures below shows the spatial breakdown of the project into IfcFacility (blue) and IfcFacilityPart (turkoise).

Figure bde98b11-4d19-4e3d-81d9-b3204f3154da
Figure 0d45e2ab-8811-42c3-85ee-299682d56b95

Project Breakdown

To represent the project breakdown for this unit test, we envision the following project structure:


Expected Results

The aim of this Unit Test, as explained above, is to test the implementation of the project breakdown through the spatial structure concepts of IFC 4.3.

As such, the expected results are:

  1. Screen-shot of the spatial structure breakdown as represented in the native application,
  2. The resulting IFC file containing the spatial structure requested.

For example, the application should be able to display something like what is shown in the picture below:

Figure d5ab6b03-f567-4d56-b967-e737816a4f3b

Supporting files

Following files correspond to this scenario:

Filename Description
UT_SpatialStructure_4.ifc IFC file with the content
Figure 1 - Situation.png picture showing a map view of the situation
Figure 2 - Toivola_area_borders.JPG picture showing a map over different facilities and parts - part1
Figure 3 - Toivola_area_borders2.JPG picture showing a map over different facilities and parts - part 2
Figure 4 - result.png picture showing possible result
Toivola_area_borders.dwg dwg file as basis for figures 2 and 3
IFCTreeView.png picture showing file structure in IFCTreeView
Table a7b623cd-2842-44c3-ad92-e6756650d28e

Images

  • Figure c755bf76-01c0-4bf0-9320-2d5e68508e77
  • Figure 50676b36-e5e0-4c3f-9be9-6fdb9d7524ad
  • Figure dc413068-dfaa-41a4-9f60-42794ae9541d
  • Figure 684ef480-b494-4aae-ad4f-3238e3c3a143
  • Figure d0244ebb-10e4-40ae-9e49-0188842e1764
  • Figure 9bdcd625-1f61-40aa-848e-8acc85f44845

IFC-SPF source

ISO-10303-21;
HEADER;
FILE_DESCRIPTION(('ViewDefinition [Ifc4X3NotAssigned]'),'2;1');
FILE_NAME(
/* name */ 'UT_SpatialStructure_4.ifc',
/* time_stamp */ '2021-01-21T14:36:20',
/* author */ ('lars'),
/* organization */ ('Unknown'),
/* preprocessor_version */ 'GeometryGymIFC v0.1.4.0 by Geometry Gym Pty Ltd built 2020-11-12T09:32:58',
/* originating_system */ 'UT_RSS_4 v1.0.0.0',
/* authorization */ 'None');

FILE_SCHEMA (('IFC4X3_RC2'));
ENDSEC;

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ENDSEC;

END-ISO-10303-21;

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