| Attribute | Description |
|---|---|
| id | The identification attribute based off the name. |
| surfaceType |
The type of surface is figured out depending on the source element and the number of space adjacencies If there is no associate source element and no space adjacencies, it will have a type of Shade. If the source element is a Wall or a Curtain Wall and have one space adjacency, it will have a type of ExteriorWall. If the source element is a Wall or a Curtain Wall and have two space adjacencies, it will have a type of InteriorWall. If the source element is a Wall or a Curtain Wall and the type Function parameter is set to "Interior" or "CoreShaft", it will have a type of InteriorWall. If the source element is a Wall or a Curtain Wall and have one space adjacency and if it is below grade, it will have a type of UndergroundWall. Note: If the top elevation of a surface is equal or below the elevation specified in Ground Plane, this surface is considered to below grade. If the source element is a Floor and have one space adjacency, it will have a type of SlabOnGrade. If the source element is above grade, it will have a type of RaisedFloor. If the source element is below grade, it will have a type of UndergroundSlab. If the source element is a Floor and have two space adjacencies, it will have a type of InteriorFloor. If the source element is a Floor and the type Function parameter is set to "Interior", it will have a type of InteriorFloor. If the source element is a Roof or a Ceiling and have one space adjacency, it will have a type of Roof. If the source element is a Roof or a Ceiling and have one space adjacency and is below grade, it will have a type of UndergroundCeiling. If the source element is a Roof or a Ceiling and have two space adjacencies, it will have a type of Ceiling. |
| constructionIdRef | The "id" for the Construction element that is associated with this surface. |
| exposedToSun | This attribute will not be exported if the surface type is InteriorWall, InteriorFloor, UndergroundWall, UndergroundSlab, UndergroundCeiling, SlabOnGrade or Ceiling. If the surface has one or less space adjacency. the attribute will be "true", otherwise "false". |
| Element | Description |
|---|---|
| Name |
Surface and Opening elements get an Name element assigned according to the below described schema: (Orientation)(Space#)[(Other space#)](Exposure)(Type)-(sequence number) [Opening Type+#] Sample: N-101-102-E-W-D-84 N = Orientation [N/NE/E/SE/S/SW/W/NW/N/T/B/X] (every surface within the sector of 22.5 degrees from the north vector gets the letter N etc) (horizontal surfaces facing upwards get the letter T for top, downwards B for bottom) (shading surfaces get the letter X for differentiation) 101 = Space number 102 = Other space number E = Exposure - exterior/interior/underground [E/I/U] W = Type [W/C/R/F] (Wall, Roof, Ceiling, Floor, Shade) (every surface type has it's letter W-Wall R-Roof C-Ceiling F-Floor S-Shade) O = Opening Type [W/D/O] (Window, Door, Opening) (every opening type has it's letter W-Window D-Door O-Opening) 77 = sequence number Sample surface names: N-101-E-W-84 North facing Exterior Wall #84 in space 101 N-101-E-W-84-D-1 Door #1 in North facing Exterior Wall #84 in space 101 E-101-102-I-W-92 Vertical Interior Wall #92 between space 101 and 102 T-101-E-R-141 Top facing Exterior Roof #141 in space 101 B-101-201-I-F-88 Bottom facing Interior Floor #88 between space 101 and 201 X-73 Shade #73 |
| AdjacentSpaceId | Reference to adjacent space(s), through spaceIdRef. |
| RectangularGeometry | An approximation of the surface geometry as a rectangle. |
| PlanarGeometry | The surface geometry. |
| Opening | See Opening Element. |
| CADObjectId | ElementId for the associated Analytical Surface element. |
<SurfaceconstructionIdRef="con-4inreinforced-concreteceiling"exposedToSun="false"id="su-b-1-3-i-c-15"surfaceType="Ceiling">
<Name>B-1-3-I-C-15</Name>
<AdjacentSpaceIdspaceIdRef="sp-1basementplenum"/>
<AdjacentSpaceIdspaceIdRef="sp-3space"/>
+<RectangularGeometry>
+<PlanarGeometry>
+<OpeningconstructionIdRef="con-wooden"id="op-5"openingType="NonSlidingDoor">
<CADObjectId>223528</CADObjectId>
</Surface>