IfcFillAreaStyleTiles

BACnet MVD

#### IfcFillAreaStyleTiles

Natural language names

| Füllfläche - Kachelstil
| Fill Area Style Tiles

Change log

Item | SPF | XML | Change | Description
--- | --- | --- | --- | ---
IFC2x3 to IFC4
IfcFillAreaStyleTiles |  |  |  |
TilingPattern | X | X | MODIFIED | Type changed from IfcOneDirectionRepeatFactor to IfcVector. Aggregation changed from NONE to LIST.
Tiles | X | X | MODIFIED | Type changed from IfcFillAreaStyleTileShapeSelect to IfcStyledItem.

##### Semantic definitions at the entity

Entity definition

The IfcFillAreaStyleTiles defines the filling of an IfcAnnotationFillArea by recurring patterns of styled two dimensional geometry, called a tile. The recurrence pattern is determined by two vectors, that multiply the tile in regular form.

The two vectors act as a two dimensional repeat factor that determins eight new positions for the tiles.

> NOTE Definition according to ISO 10303-46:
> The fill area style tiles defines a two dimensional tile to be used for the filling of annotation fill areas or other closed regions. The content of a tile is defined by the tile set, and the placement of each tile determined by the filling pattern which indicates how to place tiles next to each other. Tiles or parts of tiles outside of the annotation fill area or closed region shall be clipped at the of the area or region.

> I + k1* R1 + k2* R2 k1,k2= -1,0,1 ,

> Figure 337 shows the use of a vector for hatch line distances

> Figure 337 — two vectors as two direction repeat factor

> NOTE Entity adapted from fill_area_style_tiles defined in ISO10303-46

> HISTORY New entity in IFC2x2.

> IFC4 CHANGE TilingPattern changed to list of two IfcVector, Tiles refer directly to IfcStyledItem.

Attribute definitions

# | Attribute | Type | Cardinality | Description | B
--- | --- | --- | --- | --- | ---

1

TilingPattern

IfcVector

L[2:2]

A two direction repeat factor defining the shape and relative positioning of the tiles.

> IFC4 CHANGE The attribute type has changed to directly reference two IfcVector's.

X

2

Tiles

IfcStyledItem

S[1:?]

A set of constituents of the tile being a styled item that is used as the annotation symbol for tiling the filled area.

> IFC4 CHANGE The data type has been changed to IfcStyledItem.

> NOTE Only IfcStyleItem's that refer to a compatible geometric representation item and presentation style shall be used.

X

3 | TilingScale | IfcPositiveRatioMeasure |  | The scale factor applied to each tile as it is placed in the annotation fill area. |  | X

##### Inherited definitions from supertypes

Entity inheritance
Attribute inheritance

# | Attribute | Type | Cardinality | Description | B
--- | --- | --- | --- | --- | ---
IfcRepresentationItem

LayerAssignment

IfcPresentationLayerAssignment
@AssignedItems

S[0:1]

Assignment of the representation item to a single or multiple layer(s). The LayerAssignments can override a LayerAssignments of the IfcRepresentation it is used within the list of Items.

> IFC2x3 CHANGE The inverse attribute LayerAssignments has been added.

> IFC4 CHANGE The inverse attribute LayerAssignment has been restricted to max 1. Upward compatibility for file based exchange is guaranteed.

X

StyledByItem

IfcStyledItem
@Item

S[0:1]

Reference to the IfcStyledItem that provides presentation information to the representation, e.g. a curve style, including colour and thickness to a geometric curve.

> IFC2x3 CHANGE The inverse attribute StyledByItem has been added.

X

X

IfcGeometricRepresentationItem
IfcFillAreaStyleTiles

1

TilingPattern

IfcVector

L[2:2]

A two direction repeat factor defining the shape and relative positioning of the tiles.

> IFC4 CHANGE The attribute type has changed to directly reference two IfcVector's.

X

2

Tiles

IfcStyledItem

S[1:?]

A set of constituents of the tile being a styled item that is used as the annotation symbol for tiling the filled area.

> IFC4 CHANGE The data type has been changed to IfcStyledItem.

> NOTE Only IfcStyleItem's that refer to a compatible geometric representation item and presentation style shall be used.

X

3 | TilingScale | IfcPositiveRatioMeasure |  | The scale factor applied to each tile as it is placed in the annotation fill area. |  | X

##### Formal representations

XML Specification
`<xs:element name="IfcFillAreaStyleTiles" type="ifc:IfcFillAreaStyleTiles" substitutionGroup="ifc:IfcGeometricRepresentationItem" nillable="true"/>
<xs:complexType name="IfcFillAreaStyleTiles">
<xs:complexContent>
<xs:extension base="ifc:IfcGeometricRepresentationItem">
<xs:sequence>
<xs:element name="TilingPattern">
<xs:complexType>
<xs:sequence>
<xs:element ref="ifc:IfcVector" minOccurs="2" maxOccurs="2"/>
</xs:sequence>
<xs:attribute ref="ifc:itemType" fixed="ifc:IfcVector"/>
<xs:attribute ref="ifc:cType" fixed="list"/>
<xs:attribute ref="ifc:arraySize" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="Tiles">
<xs:complexType>
<xs:sequence>
<xs:element ref="ifc:IfcStyledItem" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute ref="ifc:itemType" fixed="ifc:IfcStyledItem"/>
<xs:attribute ref="ifc:cType" fixed="set"/>
<xs:attribute ref="ifc:arraySize" use="optional"/>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attribute name="TilingScale" type="ifc:IfcPositiveRatioMeasure" use="optional"/>
</xs:extension>
</xs:complexContent>
</xs:complexType>
`
EXPRESS Specification
`ENTITY IfcFillAreaStyleTiles
SUBTYPE OF (IfcGeometricRepresentationItem);
TilingPattern : LIST [2:2] OF IfcVector;
Tiles : SET [1:?] OF IfcStyledItem;
TilingScale : IfcPositiveRatioMeasure;
END_ENTITY;

EXPRESS-G diagram

`

References: IfcFillStyleSelect

Link to this page