IFC 4.3.1.0 (IFC4X3_ADD1) 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 c7771097-1821-45dd-94bf-a56888c14816

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

Figure 4f89b9f8-244c-4b5b-85e9-8cc930d08896
Figure 15696ee9-b019-4759-8926-d57077627c47

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 806d4084-90df-429a-a264-756b1a86da02

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 4709641b-00c9-4bea-b82e-3327414804db

Images

  • Figure 7edbeb64-2aa0-478f-b87b-ef35a04e1f98
  • Figure ed88f21f-99bd-4402-8348-48f6f61b076d
  • Figure 7a785eb2-4a09-4342-9602-bab494b7e2d0
  • Figure a3aaa31b-b39f-4ad2-8f92-8e7834b0281c
  • Figure 4c6e0a6a-ecd3-4376-9596-2cf4721ba2c0
  • Figure f4ee4943-c809-43ef-81b6-c3b91434a874

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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