This is the data file for FirstSTEP XG.  DO NOT EDIT!
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IfcLinearNetwork
BEGIN DEF
A simplified description of real world systems or elements in which the system or element is described by a connected set of curves.
END DEF
BEGIN NOTES
END NOTES
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IfcPath
BEGIN DEF
An element within a Network which joins together Parts.
END DEF
BEGIN NOTES
A Path may be described by an explicit curve or it may be implied without representation.

An example of a Path that is implied may be seen in an Electrical Network where the Path representing a physical cable is not explicitly identified. Instead, the Path is implied by the association of Parts e.g. switch (A) is connected to luminaire (B). The connection is made by a cable but the route is not specified.
END NOTES
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IfcPort
BEGIN DEF
A point on a Part or Path at which the actual connection between a Part and a Path, or at which the medium in a distribution network enters or leaves the network.
END DEF
BEGIN NOTES
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IfcPart
BEGIN DEF
An element within a Network that performs a functional role.
END DEF
BEGIN NOTES
END NOTES
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IfcLinkingPart
BEGIN DEF
A Part whose actions are wholly within the Network and which does not have any relationship with a Path or other Part within another Network. It has one or more incoming Paths AND one or more outgoing Paths.
END DEF
BEGIN NOTES
END NOTES
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IfcInterchangePart
BEGIN DEF
A Part that provides the means by which a Network acting as a distribution mechanism delivers its medium. It provides a termination point for the Network. It has one or more incoming Paths OR one or more outgoing Paths. It cannot have both incoming and outgoing Paths.
END DEF
BEGIN NOTES
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IfcNetworkConnector
BEGIN DEF
An object that connects exactly two Ports.
END DEF
BEGIN NOTES
Ports are linked together in pairs through a NetworkConnector. Each Port must be oriented at exactly 180 degrees to its pair to achieve connectivity. 
END NOTES
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ShapeRepr
BEGIN DEF
Shape representation of a Part used in a Network.
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BEGIN NOTES
The shape representation of the Part used in the Network does not have to be the same as or even equivalent to the shape representation of the element that it represents.
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International Alliance for Interoperability
Core Modules - Network Extension
Schema: IfcNetworkExt

Draft Version 4.0 - Release 2,Aug 21, 98
Diagram 1
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International Alliance for Interoperability
Core Modules - Network Extension
Schema: IfcNetworkExt

Draft Version 4.0 - Release 2,Aug 21, 98
Diagram 2
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BEGIN DEF
Units used to describe properties of the Network.
END DEF
BEGIN NOTES
END NOTES
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4 1 ? 1
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BEGIN INVERSE CARDINALITY
3 1 ?

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IfcLengthMeasure
BEGIN DEF
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BEGIN NOTES
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115 412 115 714 137 714 137 809
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LogicalLength
BEGIN DEF
The length of a Path measured between Path Ends. 
END DEF
BEGIN NOTES
The Logical Length is not necessarily the true length of the Element which will participate in the overlying System.
END NOTES
1
BEGIN CARDINALITY
4 1 ? 1
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BEGIN INVERSE CARDINALITY
3 1 ?

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BEGIN DEF
END DEF
BEGIN NOTES
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IfcInterchangePlacementSelect
END SUPERTYPE NAMES
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163
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IfcGeometryResource

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IfcPoint
BEGIN DEF
END DEF
BEGIN NOTES
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IfcPointOnPath
END SUBTYPE NAMES
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235
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BEGIN LOCAL RULES DESCRIPTION
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Ports
BEGIN DEF
The means by which a Part or a Path is joined to a Path or a Part through a Connector.
END DEF
BEGIN NOTES
Ports may be considered to act like grip points at either end of a Path. Moving a Port at one end of the Path but not the Port at the other end of the Path will cause the Path to become distorted and either longer or shorter. Such an operation would cause the Network Connector to move. In consequence of this, the paired Port of the attached Part or Path would also move.

This will cause the orientation of Ports to become incorrect with respect to each other. A role of the NetworkConnector is to enforce the 180 degree rule for Ports.
END NOTES
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1 2 2 0
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BEGIN INVERSE CARDINALITY
3 1 ?

END INVERSE CARDINALITY
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BEGIN LOCAL RULES DESCRIPTION
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RelatingPort
BEGIN DEF
The Port to which a NetworkConnector is relates.
END DEF
BEGIN NOTES
In a directed network, the RelatingPort will be the Port to which flow is directed.
END NOTES
1
BEGIN CARDINALITY
4 1 ? 0
END CARDINALITY
BEGIN INVERSE CARDINALITY
3 1 ?

END INVERSE CARDINALITY
40 16 0
BEGIN LOCAL RULES
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RelatedPort
BEGIN DEF
The Port to which a NetworkConnector is related.
END DEF
BEGIN NOTES
In a directed network, the RelatedPort will be the Port from which the flow is directed.
END NOTES
1
BEGIN CARDINALITY
4 1 ? 0
END CARDINALITY
BEGIN INVERSE CARDINALITY
3 1 ?

END INVERSE CARDINALITY
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PlacementRelTo
BEGIN DEF
A placement of a Part made relative to a point in space.
END DEF
BEGIN NOTES
END NOTES
1
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4 1 ? 0
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BEGIN INVERSE CARDINALITY
3 1 ?

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IfcInterchangePlacementSelect
BEGIN DEF
Selection of whether an InterchangePart is placed at a point in space or at a point on a path.
END DEF
BEGIN NOTES
END NOTES
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BEGIN SUPERTYPE NAMES
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IfcAxis2Placement3D
IfcPointOnPath
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BEGIN LOCAL RULES
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BEGIN LOCAL RULES DESCRIPTION

END LOCAL RULES DESCRIPTION
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PlacementRelTo
BEGIN DEF
A placement of a Part made relative to a point in space or to a point on a path.
END DEF
BEGIN NOTES
END NOTES
1
BEGIN CARDINALITY
4 1 ? 1
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BEGIN INVERSE CARDINALITY
3 1 ?

END INVERSE CARDINALITY
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BEGIN LOCAL RULES DESCRIPTION
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IfcPointOnPath
BEGIN DEF
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BEGIN NOTES
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BEGIN DEF
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IfcPort
BEGIN DEF
END DEF
BEGIN NOTES
END NOTES
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Ports
BEGIN DEF
An End which occurs at the point at which a Part or a Path is joined to a Path or a Part through a Connector.
END DEF
BEGIN NOTES
LinkingEnds may be considered to act like grip points at either end of a Path. Moving a LinkingEnd at one end of the Path but not the Linking End at the other end of the Path will cause the Path to become distorted and either longer or shorter. Such an operation would cause the Networ Connector to move. In consequence of this, the paired LinkingEnd of the attached Part or Path would also move.

This will cause the orientation of Ends to become incorrect with respect to each other.

A role of the NetworkConnector is to enforce again the 180 degree rule for LinkingEnds.
END NOTES
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BEGIN INVERSE CARDINALITY
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BEGIN DEF
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BEGIN NOTES
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Ports
BEGIN DEF
An End which occurs at the point at which a Part or a Path is joined to a Path or a Part through a Connector.
END DEF
BEGIN NOTES
LinkingEnds may be considered to act like grip points at either end of a Path. Moving a LinkingEnd at one end of the Path but not the Linking End at the other end of the Path will cause the Path to become distorted and either longer or shorter. Such an operation would cause the Networ Connector to move. In consequence of this, the paired LinkingEnd of the attached Part or Path would also move.

This will cause the orientation of Ends to become incorrect with respect to each other.

A role of the NetworkConnector is to enforce again the 180 degree rule for LinkingEnds.
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The edge representing a Path.
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Points on a Path at which Parts may be located or applied.
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BEGIN NOTES
END NOTES
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BEGIN DEF
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The point by which a NetworkConnector is located.
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BEGIN NOTES
END NOTES
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A location on a path at which a Part may be positioned or applied.
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BEGIN NOTES
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A terminal point of a Path.
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PathEnds may be used to determine the logical length of a Path.
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A placement of a Part made relative to a point on a path.
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The length of a Path measured between Ports.
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257
1190 657 10 35
131 255
1195 662 1195 687
125
END 34
BEGIN 100
993 105
1
993 105 99 56
99 56
272
IfcNetworkElement
BEGIN DEF
An element forming part of a network.
END DEF
BEGIN NOTES
END NOTES
274 275 -1 290 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
274 275 -1 291 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
11 10 -1 6 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
1042 100 1042 161 0 0 988 133 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
1
BEGIN SUPERTYPE NAMES
IfcObject
END SUPERTYPE NAMES
BEGIN DISPLAYED SUPERTYPE NAMES
IfcObject
END DISPLAYED SUPERTYPE NAMES
BEGIN SUPERTYPE NUMBERS
222
END SUPERTYPE NUMBERS
1
BEGIN SUBTYPE NAMES
IfcPart
IfcPath
IfcPort
END SUBTYPE NAMES
BEGIN SUBTYPE NUMBERS
17
277
278
END SUBTYPE NUMBERS
BEGIN LOCAL RULES
END LOCAL RULES
BEGIN LOCAL RULES DESCRIPTION
END LOCAL RULES DESCRIPTION
BEGIN UNIQUE RULES
END UNIQUE RULES
BEGIN TRUNK NUMBERS
275
END TRUNK NUMBERS
1
END 100
BEGIN 35
0 0
3
1037 85 10 10
1037 70 10 25
1048 75 6 12

273
7
124
222
1042 90 1042 90 1042 90 1042 75 1042 90 1042 90
0 0
BEGIN BRANCH NUMBERS
274
END BRANCH NUMBERS

0
END 35
BEGIN 34
0 0
1
274
1037 85 10 20
272 273
1042 90 1042 100
124
END 34
BEGIN 35
0 0
3
839 185 427 10
1037 156 10 39
1048 175 6 12

275
7
124
272
844 190 1261 190 1042 190 1042 161 844 190 1261 190
0 0
BEGIN BRANCH NUMBERS
276
279
280
END BRANCH NUMBERS

0
END 35
BEGIN 34
0 0
1
276
1037 185 10 66
17 275
1042 190 1042 246
124
END 34
BEGIN 234
807 209
1
807 209 75 34
75 34
277
IfcPath
BEGIN DEF
END DEF
BEGIN NOTES
END NOTES
279 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
279 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
11 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
844 204 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
1
BEGIN SUPERTYPE NAMES
IfcNetworkElement
END SUPERTYPE NAMES
BEGIN SUPERTYPE NUMBERS
272
END SUPERTYPE NUMBERS
0
BEGIN SUBTYPE NAMES
END SUBTYPE NAMES
BEGIN SUBTYPE NUMBERS
END SUBTYPE NUMBERS
-1
BEGIN LOCAL RULES
END LOCAL RULES
BEGIN LOCAL RULES DESCRIPTION
END LOCAL RULES DESCRIPTION
BEGIN UNIQUE RULES
END UNIQUE RULES
1
3
2
IfcPath
END 234
BEGIN 234
1224 209
1
1224 209 75 34
75 34
278
IfcPort
BEGIN DEF
END DEF
BEGIN NOTES
END NOTES
280 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
280 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
11 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
1261 204 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
1
BEGIN SUPERTYPE NAMES
IfcNetworkElement
END SUPERTYPE NAMES
BEGIN SUPERTYPE NUMBERS
272
END SUPERTYPE NUMBERS
0
BEGIN SUBTYPE NAMES
END SUBTYPE NAMES
BEGIN SUBTYPE NUMBERS
END SUBTYPE NUMBERS
-1
BEGIN LOCAL RULES
END LOCAL RULES
BEGIN LOCAL RULES DESCRIPTION
END LOCAL RULES DESCRIPTION
BEGIN UNIQUE RULES
END UNIQUE RULES
1
4
2
IfcPort
END 234
BEGIN 34
0 0
1
279
839 185 10 24
277 275
844 190 844 204
124
END 34
BEGIN 34
0 0
1
280
1256 185 10 24
278 275
1261 190 1261 204
124
END 34
BEGIN 235
78 218
1
78 218 75 34
75 34
281
 
BEGIN DEF
END DEF
BEGIN NOTES
END NOTES
283 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
283 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
10 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
115 252 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
1
BEGIN SUPERTYPE NAMES
END SUPERTYPE NAMES
BEGIN SUPERTYPE NUMBERS
END SUPERTYPE NUMBERS
1
BEGIN SUBTYPE NAMES
IfcPath
END SUBTYPE NAMES
BEGIN SUBTYPE NUMBERS
15
END SUBTYPE NUMBERS
-1
BEGIN LOCAL RULES
END LOCAL RULES
BEGIN LOCAL RULES DESCRIPTION
END LOCAL RULES DESCRIPTION
BEGIN UNIQUE RULES
END UNIQUE RULES
1
3
2
END 235
BEGIN 235
488 218
1
488 218 75 34
75 34
282
 
BEGIN DEF
END DEF
BEGIN NOTES
END NOTES
285 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
285 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
10 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
525 252 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
1
BEGIN SUPERTYPE NAMES
END SUPERTYPE NAMES
BEGIN SUPERTYPE NUMBERS
END SUPERTYPE NUMBERS
1
BEGIN SUBTYPE NAMES
IfcPort
END SUBTYPE NAMES
BEGIN SUBTYPE NUMBERS
16
END SUBTYPE NUMBERS
-1
BEGIN LOCAL RULES
END LOCAL RULES
BEGIN LOCAL RULES DESCRIPTION
END LOCAL RULES DESCRIPTION
BEGIN UNIQUE RULES
END UNIQUE RULES
1
4
2
END 235
BEGIN 35
115 301
3
110 296 10 10
110 247 10 59
121 286 6 12

283
7
124
281
115 301 115 301 115 301 115 252 115 301 115 301
0 0
BEGIN BRANCH NUMBERS
284
END BRANCH NUMBERS

0
END 35
BEGIN 34
115 301
1
284
110 296 10 34
15 283
115 301 115 325
124
END 34
BEGIN 35
525 284
3
520 279 10 10
520 247 10 42
531 269 6 12

285
7
124
282
525 284 525 284 525 284 525 252 525 284 525 284
0 0
BEGIN BRANCH NUMBERS
286
END BRANCH NUMBERS

0
END 35
BEGIN 34
525 284
1
286
520 279 10 56
16 285
525 284 525 330
124
END 34
BEGIN 234
602 115
1
602 115 117 34
117 34
288
IfcNetworkElement
BEGIN DEF
END DEF
BEGIN NOTES
END NOTES
14 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
289 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
6 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
597 132 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
1
BEGIN SUPERTYPE NAMES
END SUPERTYPE NAMES
BEGIN SUPERTYPE NUMBERS
END SUPERTYPE NUMBERS
0
BEGIN SUBTYPE NAMES
END SUBTYPE NAMES
BEGIN SUBTYPE NUMBERS
END SUBTYPE NUMBERS
-1
BEGIN LOCAL RULES
END LOCAL RULES
BEGIN LOCAL RULES DESCRIPTION
END LOCAL RULES DESCRIPTION
BEGIN UNIQUE RULES
END UNIQUE RULES
2
5
1
IfcNetworkElement
END 234
BEGIN 108
0 0
5
409 127 101 10
500 127 10 10
448 116 114 13
448 116 114 13
505 134 0 0
414 132 505 132 505 132 597 132
289
NetworkElements
BEGIN DEF
Part, path and port objects within a Network.
END DEF
BEGIN NOTES
END NOTES
1
BEGIN CARDINALITY
0 1 ? 0
END CARDINALITY
BEGIN INVERSE CARDINALITY
3 1 ?

END INVERSE CARDINALITY
14 288 0
BEGIN LOCAL RULES
END LOCAL RULES
BEGIN LOCAL RULES DESCRIPTION
END LOCAL RULES DESCRIPTION
BEGIN UNIQUE RULES
END UNIQUE RULES
BEGIN DERIVED TEXT
END DERIVED TEXT
448 116 505 134 114 13 0 0


0
0
0
END 108
BEGIN 235
737 116
1
737 116 75 34
75 34
290
 
BEGIN DEF
END DEF
BEGIN NOTES
END NOTES
272 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
291 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
5 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
812 133 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
1
BEGIN SUPERTYPE NAMES
END SUPERTYPE NAMES
BEGIN SUPERTYPE NUMBERS
END SUPERTYPE NUMBERS
0
BEGIN SUBTYPE NAMES
END SUBTYPE NAMES
BEGIN SUBTYPE NUMBERS
END SUBTYPE NUMBERS
-1
BEGIN LOCAL RULES
END LOCAL RULES
BEGIN LOCAL RULES DESCRIPTION
END LOCAL RULES DESCRIPTION
BEGIN UNIQUE RULES
END UNIQUE RULES
2
5
1
END 235
BEGIN 108
0 0
5
807 128 98 10
895 128 10 10
900 133 0 0
900 133 0 0
900 133 0 0
812 133 900 133 900 133 988 133
291

BEGIN DEF
END DEF
BEGIN NOTES
END NOTES
0
BEGIN CARDINALITY
4 1 ? 0
END CARDINALITY
BEGIN INVERSE CARDINALITY
3 1 ?

END INVERSE CARDINALITY
290 272 0
BEGIN LOCAL RULES
END LOCAL RULES
BEGIN LOCAL RULES DESCRIPTION
END LOCAL RULES DESCRIPTION
BEGIN UNIQUE RULES
END UNIQUE RULES
BEGIN DERIVED TEXT
END DERIVED TEXT
900 133 900 133 0 0 0 0


0
0
0
END 108
BEGIN 103
313 224
1
313 224 122 39
122 39
292
IfcDirectionSenseEnum
BEGIN DEF
Indication of the sense of direction flow within a network distributing a medium or the fact that there is no explicit directional flow within a network with no distribution or where the direction of distribution is not significant. 
END DEF
BEGIN NOTES
END NOTES
16 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
295 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
10 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
374 268 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
1
BEGIN LOCAL RULES
END LOCAL RULES
BEGIN LOCAL RULES DESCRIPTION

END LOCAL RULES DESCRIPTION
BEGIN UNIQUE RULES
END UNIQUE RULES
BEGIN ENUM ITEMS
In
Out
None
END ENUM ITEMS
END 103
BEGIN 103
1077 481
1
1077 481 122 39
122 39
293
IfcDirectionSenseEnum
BEGIN DEF
Indication of the sense of direction flow within a network distributing a medium or the fact that there is no explicit directional flow within a network with no distribution or where the direction of distribution is not significant. 
END DEF
BEGIN NOTES
END NOTES
28 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
294 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
6 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
1072 500 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
1
BEGIN LOCAL RULES
END LOCAL RULES
BEGIN LOCAL RULES DESCRIPTION

END LOCAL RULES DESCRIPTION
BEGIN UNIQUE RULES
END UNIQUE RULES
BEGIN ENUM ITEMS
True
False
None
END ENUM ITEMS
END 103
BEGIN 108
0 0
5
901 495 93 10
984 495 10 10
984 495 93 10
954 484 71 13
989 502 0 0
906 500 989 500 989 500 1072 500
294
DirectionSense
BEGIN DEF
Indicates the direction of flow at the InterchangePart.
END DEF
BEGIN NOTES
DirectionSense is an enumeration where the value 'IN' is used to indicate an entering flow, the value 'OUT' indicates a leaving flow and the value 'NONE' indicates that there is no specific direction of flow specified. The IN/OUT values are used for directed networks (i.e. networks where direction of flow is significant) wilst NONE is used for undirected networks (i.e. networks where direction of flow is not significant).

For pairs of Ports in  a directed network, one Port must have a DirectionSense of IN whilst the other Port has a DirectionSense of OUT. IN/IN and OUT/OUT combinations are not allowed. The direction of flow is thus determined by the arrangement of IN and OUT Ports in a Network. 

For pairs of Ports in  an undirected network, each Port must have a DirectionSense of NONE so that a Port combination of NONE/NONE indicates that there is no direction of flow specified at the connection. 
END NOTES
1
BEGIN CARDINALITY
4 1 ? 1
END CARDINALITY
BEGIN INVERSE CARDINALITY
3 1 ?

END INVERSE CARDINALITY
28 293 0
BEGIN LOCAL RULES
END LOCAL RULES
BEGIN LOCAL RULES DESCRIPTION
END LOCAL RULES DESCRIPTION
BEGIN UNIQUE RULES
END UNIQUE RULES
BEGIN DERIVED TEXT
END DERIVED TEXT
954 484 989 502 71 13 0 0


0
0
18
END 108
BEGIN 108
0 0
5
491 297 10 43
369 297 132 10
369 263 10 44
400 286 71 13
435 304 0 0
496 335 496 302 374 302 374 268
295
DirectionSense
BEGIN DEF
Indicates the direction of flow within a directed network or that the network does not have a specified direction of flow within an undirected network.
END DEF
BEGIN NOTES
DirectionSense is an enumeration where the value 'IN' is used to indicate an entering flow, the value 'OUT' indicates a leaving flow and the value 'NONE' indicates that there is no specific direction of flow specified. The IN/OUT values are used for directed networks (i.e. networks where direction of flow is significant) wilst NONE is used for undirected networks (i.e. networks where direction of flow is not significant).

For pairs of Ports in  a directed network, one Port must have a DirectionSense of IN whilst the other Port has a DirectionSense of OUT. IN/IN and OUT/OUT combinations are not allowed. The direction of flow is thus determined by the arrangement of IN and OUT Ports in a Network. 

For pairs of Ports in  an undirected network, each Port must have a DirectionSense of NONE so that a Port combination of NONE/NONE indicates that there is no direction of flow specified at the connection. 
END NOTES
1
BEGIN CARDINALITY
4 1 ? 1
END CARDINALITY
BEGIN INVERSE CARDINALITY
3 1 ?

END INVERSE CARDINALITY
16 292 0
BEGIN LOCAL RULES
END LOCAL RULES
BEGIN LOCAL RULES DESCRIPTION
END LOCAL RULES DESCRIPTION
BEGIN UNIQUE RULES
END UNIQUE RULES
BEGIN DERIVED TEXT
END DERIVED TEXT
400 286 435 304 71 13 0 0


0
0
0
END 108
BEGIN 102
221 226
1
221 226 75 34
75 34
310
REAL
15 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
311 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
10 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 
258 265 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
1
7
END 102
BEGIN 108
0 0
5
142 293 10 42
142 293 121 10
253 260 10 43
171 282 62 13
202 300 0 0
147 330 147 298 258 298 258 265
311
PathQuantity
BEGIN DEF
The quantity or amount of a substance, load or property that is carried by an IfcPath.
END DEF
BEGIN NOTES
The data type for thePathQuantity is specified as REAL to allow for the fact that it will aways be numeric and may include decimals. The value may be signed as positive or negative depending on whether the values of InterchangeQuantity at the IfcInterchange Part are positive or negative . However, this woud be by user convention only. The direction sense applied to the IfcPorts associated with the IfcPath in fact specify direction. Also, the value of PathQuantity is derived by the sum of InterchangeQuantity's that are downstream of the IfcPath.
END NOTES
1
BEGIN CARDINALITY
4 1 ? 1
END CARDINALITY
BEGIN INVERSE CARDINALITY
3 1 ?

END INVERSE CARDINALITY
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InterchangeQuantity
BEGIN DEF
The quantity or amount of a substance, load or property that is transferred at an IfcInterchangePart.
END DEF
BEGIN NOTES
The data type for the InterchangeQuantity is specified as REAL to allow for the fact that it will aways be numeric and may include decimals. The value may be signed as positive or negative to indicate whether the interchange is transmitted from the IfcInterchangePart or to the IfcInterchangePart . However, this woud be by user convention only. The direction sense applied to the IfcInterchangePart in fact specifies direction.
END NOTES
1
BEGIN CARDINALITY
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END CARDINALITY
BEGIN INVERSE CARDINALITY
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END INVERSE CARDINALITY
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BEGIN FREE
The Edge class has been referenced from a
Topology Resource. This does not exist at
present but, in discussions concerning the
Network model, its requirement was agreed.
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END FREE
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Need to clarify how part
is to be represented. This
is probably too much.
END FREE
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BEGIN FREE
Note that the IfcAppliedPart has been deleted
from Working Draft 4 as not being directly
relevat to the 'pure' network definition.

Applied parts (or however named) should form
part of domain Network models or be developed
as part of a Features model.
END FREE
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