Masking regions provide a way to obscure elements in a view. Masking regions may be useful in scenarios like the following:
- You need to obscure elements in a project.
- You are creating a detail family or a model family and need the background of the element to mask the model and other detail components when it is loaded into a project.
- You need to create a model family (from imported 2D DWG files) that obscures other elements when placed in a view.
You can create 2D and 3D masking regions. 2D masking regions can be created in a project and in the Family Editor when you are creating a 2D family (annotation, detail, or title block). 3D masking regions can be created in the Family Editor when you are creating a model family.
Masking regions do not participate in shading; they are always drawn the background color of the drawing area. Masking regions cannot be applied to element subcategories.
Filled Region
The Filled Region tool creates a 2-dimensional, view-specific graphic with a boundary line style and fill pattern within the closed boundary. The filled region is parallel to the view’s sketch plane. The tool is useful for defining a filled area in a detail view or for adding a filled region to an annotation family.
Filled regions contain a fill pattern. Fill patterns are of 2 types: Drafting or Model. Drafting fill patterns are based on the scale of the view. Model fill patterns are based on the actual dimensions in the building model.