Use this parameter to filter which Revit views you wish to read from the file.
Which views you are able to select is dependent on the value of the Read Geometry As parameter:
- If you selected Surfaces or Wireframes, you will be able to choose from all 3D Views in the file.
- If you selected Floor Plans, you will be able to choose from all Floor Plan Views in the file.
- If no view is specified, in Surfaces or Wireframes mode, a 3D view will be chosen as default. In Floor Plans mode, all Floor Plan Views will be read, with a string attribute applied to each feature titled FloorPlanView, containing the feature’s corresponding view.
Use this parameter to filter the features that will be read:
- All Elements: All elements will be read.
- Exterior Shell Only: Only elements that belong to the exterior shell of the model will be read.
Use this parameter to change the geometry mode that the reader will represent features with:
- Surfaces: This mode will represent features as 3D surfaces. Not all elements can be represented this way.
- Wireframes: This mode will represent all features as wireframes. Those that cannot be represented as surfaces will be broken down into an aggregate of lines.
- Floor Plans: This mode will represent features as a 2D floor plan. Which floor plan view is represented is dependent on the value of the Views to Read parameter.
- If set to Yes, the reader will give precedence to an Esri product coordinate system over any native Revit coordinate system.
- If set to No, the translation will continue, using the coordinate information found in the dataset, without performing any additional transformation.
Esri *.prj and *.wld/wld3 Files
FME will search the folder of the dataset for a file with the same name as your dataset but with a projection file (.prj) extension. If it cannot find a file with that name, it will then look for the file esri_cad.prj within the dataset folder. If either of those files exists, FME will use the coordinate system information contained within to geolocate the Revit file.
If a .prj file is found, FME will also search the folder of the dataset for a file with the same name as your dataset, but with a world file extension (.wld or .wld3). If it cannot find a file with that name, it will then look for the file esri_cad.wld/esri_cad.wld3 within the dataset folder. If either of those files exists, FME will use the information in the file to translate the coordinates of the features in the dataset to their new geospatial coordinates.
If the files cannot be found, then the translation will continue, using the coordinate information found in the dataset, without performing any additional transformation.
For more information on creating .prj and .wld/.wld3 files in ArcGIS Pro, please refer to the ArcGIS help page: 3D georeferencing Revit model.
Native Revit Coordinate System
If FME does not find an Esri .prj file, it will instead look for coordinate system information in the Revit dataset. In order for the dataset to be properly georeferenced, the Revit file needs to be linked to a DWG coordinate system within Autodesk Revit.
Use Search Envelope
Using the minimum and maximum x and y parameters, define a bounding box that will be used to filter the input features. Only features that intersect with the bounding box are returned.
If all four coordinates of the search envelope are specified as 0, the search envelope will be disabled.
When selected, this parameter removes any portions of imported features being read that are outside the Search Envelope.
The example below illustrates the results of the Search Envelope when Clip to Search Envelope is not selected (set to No) and when it is selected (set to Yes).
- No: Any features that cross the search envelope boundary will be read, including the portion that lies outside of the boundary.
- Yes: Any features that cross the search envelope boundary will be clipped at the boundary, and only the portion that lies inside the boundary will be read. The underlying function for the Clip to Search Envelope function is an intersection; however, when Clip to Search Envelope is selected, a clipping operation is also performed in addition to the intersection.