IFC 4.3.0.0 (IFC4X3) final

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 8755e4c2-4683-45fd-bfda-a0544930e780

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

Figure 88ade7bd-21a0-41d5-84f1-ebfee3f8401a
Figure 9a813062-af80-41bf-9252-27ad0c6b983c

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 6844a716-78db-4778-8191-82fcc12b8a3e

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 92f42067-b393-4a4f-be04-ca5d2282c150

Images

  • Figure eb1a3da7-dd0f-47db-8b35-e1f9ac626c7f
  • Figure 9480b3f0-03a6-47f5-8c5f-5c331b2557fa
  • Figure 8b7f112c-f1e1-4660-b0a1-b6552a19b170
  • Figure 14042e23-e4e8-4e0f-9c63-8352e55bee94
  • Figure 5b7afb47-7d8d-40e7-8a4a-667c488d7419
  • Figure 8bceea29-94ee-4eb8-ac52-1a57c7f9e3da

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;