The Local Government Information Model incorporates five key elements from the Building Interior Space Data Model (BISDM) to help you organize these building features on a campus.
- Building (the building footprint polygon)
- BuildingFloor (a polygon for each floor in a building)
- BuildingFloorplanLine (a line feature representing walls, stairs, columns, and so on)
- BuildingFloorSection (also called wings or subdivisions of a BuildingFloor)
- BuildingInteriorSpace (offices, restrooms, and so on)
This workflow will outline the necessary steps to create building features manually by georeferencing your scanned building floor plan; sketching in lines to represent walls, doors, and windows; and creating your interior space polygons from these lines.
To add interior features manually, complete the following steps:
- Georeference the raster floor plan image. The Campus Editing map document contains a georeferenced floor plan image for a small building as an example.
- Start an edit session.
- For each floor in your building, create the BuildingFloor polygon and provide the appropriate attributes (FLOORID, BUILDINGKEY, FLOOR, BASEELEV, and so on).
- Use the georeferenced image to trace BuildingFloorplanLine features such as the following:
- Exterior walls
- Interior walls
- Doors
- Windows
- Save your edits.
- Open the Feature To Polygon tool from the Features toolset in the Data Management toolbox, and add your building floor plan lines.
- In the Catalog window, use the Simple Data Loader to load these polygons into the MapsandGeodatabase\LocalGovernment.gdb\FacilitiesStreets\BuildingInteriorSpace feature class.
- Add the features from the MapsandGeodatabase\LocalGovernment.gdb\FacilitiesStreets\BuildingInteriorSpace feature class.
- Use definition queries to help populate the attributes for your spaces, primarily the (unique) SPACEID and SPACETYPE values.
- Define the building footprint by creating a Building polygon with the appropriate attributes.
- Optionally, update the building footprints in your cached campus basemap.