IFC 4.3.0.1 (IFC4X3_TC1)

Annex E Examples - UT_Alignment_12d_11

Example overview

An example where the vertical geometry (VG) starts after and ends before, the horizontal geometry (HG)

Alignment with partial clothoid of decreasing radii between two left arcs, and vertical geometry

There is a start chainage of 0.

There is only the semantic definition and no ifc geometry

Intent

IFC 4x3 RC2 This scenario has a simple alignment consisting of a: Horizontal Geometry: left arc, partial clothoid of decreasting radii, left arc Vertical Geometry: the vertical geometry starts after the HG and stops before the end of the HG
In the ifc file there is the seamantic definition of the alignment but no ifc geometry.

The Ifc file was generated by 12d Model - 4 January 2021

Prerequisites

This scenario builds upon the scenario UT_Alignment_12d_9

Content

This scenario covers the additional concepts and/or IFC entities:

the vertical geometry starts after the HG and stops before the end of the HG

Supporting files

Following files correspond to this scenario:

Filename Description
UT_Alignment_12d_11.ifc the exported content as an IFC file
UT_Alignment_12d_11.png plan view and section view of the alignment, and the segment parameters (with Civil radius)
Table 4c33ebc9-23dd-4dd5-ad06-90ce1499be5a

Images

  • Figure 0efd482e-543f-41a5-bc8d-84826c606e65
  • Figure 1e622a55-89e9-4383-bb33-f7955b761f5b

IFC-SPF source

ISO-10303-21;
HEADER;
FILE_DESCRIPTION (('ViewDefinition[]'), '2;1');
FILE_NAME ('UT_Alignment_12d_11.ifc', '2021-01-04T12:57:46', ('Lee Gregory'), ('12d Solutions - Ranch'), 'IFC Engine rev 1257', '12d Model 15.0 Alpha 429', '');
FILE_SCHEMA (('IFC4X3_RC2'));
ENDSEC;
DATA;
#1 = IFCPROJECT('2LJesmETv6W9jWXnI$q1Aj', #2, 'UT Alignment 12d - 11', 'Alignment with VG shorter than HG', $, $, $, (#14), #9);
#2 = IFCOWNERHISTORY(#3, #8, $, .ADDED., $, $, $, 1609725466);
#3 = IFCPERSONANDORGANIZATION(#4, #6, $);
#4 = IFCPERSON($, 'Gregory', 'Lee', $, $, $, (#5), $);
#5 = IFCACTORROLE(.CIVILENGINEER., 'Designer', $);
#6 = IFCORGANIZATION($, '12d Solutions - Ranch', $, (#7), $);
#7 = IFCACTORROLE(.CONSULTANT., 'Engineering', $);
#8 = IFCAPPLICATION(#6, '15.0 Alpha 429', '12d Model', '12d Model');
#9 = IFCUNITASSIGNMENT((#10, #11, #12, #13));
#10 = IFCSIUNIT(*, .LENGTHUNIT., $, .METRE.);
#11 = IFCSIUNIT(*, .AREAUNIT., $, .SQUARE_METRE.);
#12 = IFCSIUNIT(*, .VOLUMEUNIT., $, .CUBIC_METRE.);
#13 = IFCSIUNIT(*, .PLANEANGLEUNIT., $, .RADIAN.);
#14 = IFCGEOMETRICREPRESENTATIONCONTEXT($, 'Model', 3, 1.E-6, #16, #20);
#15 = IFCLOCALPLACEMENT($, #16);
#16 = IFCAXIS2PLACEMENT3D(#17, #18, #19);
#17 = IFCCARTESIANPOINT((0., 0., 0.));
#18 = IFCDIRECTION((0., 0., 1.));
#19 = IFCDIRECTION((1., 0., 0.));
#20 = IFCDIRECTION((0., 1., 0.));
#21 = IFCSITE('23OrcROlv6ef$jDQbwIpr9', #2, 'Default Site', 'Description of Default Site', $, #15, $, $, .ELEMENT., $, $, $, $, $);
#22 = IFCRELAGGREGATES('1J0h6uSJfDIuU9QkSC_rDA', #2, 'ProjectContainer', 'ProjectContainer for Sites', #1, (#21));
#23 = IFCFACILITY('1wGm8Rr4z2dh$bVgCEYWBN', #2, 'SA HG partial clothoid VG short', 'Description of SA HG partial clothoid VG short', $, #15, $, $, .ELEMENT.);
#24 = IFCRELAGGREGATES('3p_Y3fsb131fKenteql0ei', #2, 'SiteContainer', 'SiteContainer For All Models', #21, (#23));
#25 = IFCRELCONTAINEDINSPATIALSTRUCTURE('3VCtYbcerErfIRHAdWBof3', #2, 'Building Container', 'BuildingContainer for Elements', (#26), #23);
#26 = IFCALIGNMENT('0y2hQsQKfAqxEufY7Z_1jL', $, 'RS02 short VG', '12d Alignment String', 'natural clothoid', $, $, $, $);
#27 = IFCRELAGGREGATES('2msdk43Yz6HAcHmIJQOfXL', #2, '', '', #26, (#28, #35));
#28 = IFCALIGNMENTHORIZONTAL('1FahSvf2z8YeREQCzieDuo', #2, 'Horizontal Alignment', '12d Horizontal Alignment', $, $, $, 0., (#29, #31, #33));
#29 = IFCALIGNMENTHORIZONTALSEGMENT($, $, #30, 6.24106894875598, 101.791055, 101.791055, 50.5274104694524, $, .CIRCULARARC.);
#30 = IFCCARTESIANPOINT((1138.440322, 1024.871003));
#31 = IFCALIGNMENTHORIZONTALSEGMENT($, $, #32, 4.5426724295916E-1, 101.791055, 56.597258, 29.524811874303, $, .CLOTHOID.);
#32 = IFCCARTESIANPOINT((1187.3924442348, 1035.1041016478));
#33 = IFCALIGNMENTHORIZONTALSEGMENT($, $, #34, 8.60126325938072E-1, 56.597258, 56.597258, 59.0722127429004, $, .CIRCULARARC.);
#34 = IFCCARTESIANPOINT((1210.94881919183, 1052.56398618789));
#35 = IFCALIGNMENTVERTICAL('3gA2mMqFX0xfZWiXfZxgI6', #2, 'Vertical Alignment', '12d Vertical Alignment', $, $, $, (#36, #37, #38, #39, #40));
#36 = IFCALIGNMENTVERTICALSEGMENT($, $, 25., 22.1775718912935, 500.2564, 8.07402171512695E-2, 8.07402171512695E-2, $, .CONSTANTGRADIENT.);
#37 = IFCALIGNMENTVERTICALSEGMENT($, $, 47.1775718912935, 20., 502.047021970391, 8.07402171512308E-2, -9.12280701755666E-2, 116.300512791602, .PARABOLICARC.);
#38 = IFCALIGNMENTVERTICALSEGMENT($, $, 67.1775718912935, 8.0492098531853, 501.942143440148, -9.12280701752541E-2, -9.12280701752541E-2, $, .CONSTANTGRADIENT.);
#39 = IFCALIGNMENTVERTICALSEGMENT($, $, 75.2267817444788, 30., 501.207829558806, -9.12280701754341E-2, 4.4056649648193E-2, 221.754533986629, .PARABOLICARC.);
#40 = IFCALIGNMENTVERTICALSEGMENT($, $, 105.226781744479, 19.7732182555212, 500.500258250897, 4.40566496482954E-2, 4.40566496482954E-2, $, .CONSTANTGRADIENT.);
ENDSEC;
END-ISO-10303-21;