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 8df01334-0232-4ec2-a997-178675da1b36

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

Figure 6a6bb728-37e4-4e72-9de6-a40cd107e137
Figure eb10d6e3-91ec-4f10-ae31-13878bb44279

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 5f88bc1f-c389-4975-b5f3-2be4ebeb0f90

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 c11de65c-9ea3-4529-8c6e-ea7fdabd3632

Images

  • Figure 6f2865fa-a588-400e-b5c7-163839051792
  • Figure b70bd091-d786-4a3a-888f-c1dda09761f9
  • Figure de9a9fc7-6150-4ce0-9226-35a29f7bb5e4
  • Figure 6ff99991-e157-4439-891c-05ba9e1b2fa9
  • Figure 8a6150a9-5a72-403a-a9da-ba53812315a8
  • Figure c2af2730-ab17-4612-a6ed-db7b4891205b

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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