The view range is a set of horizontal planes that control the visibility and display of objects in a plan view. View Range feature seem complicated, but it is actually quite simple. Users can access the View Range with just a few clicks. First, the floor plan or ceiling plan must be opened using the project browser. Once the floor plan or ceiling plan is open, the View Range button becomes available in the Properties panel.
The View Range is made up of a primary range and the view depth. The primary range is defined by three horizontal planes: a top plane, a bottom plane and a cut plane.
Top of View – Sometimes referred to as the top clip plane. Your Views “Eyes” are placed here, looking down. The Only elements that show up as visible between the Top Clip Plane and the Cut Plane are Casework, Windows and Generic Model Categories which are given the default projection line weights. Nothing else will be visible in this zone.
Cut Plane – Everything will be visible from the Cut Plane down to the Bottom Clip Plane of the view. Anything that intersects with the Cut Plane will take on Cut Line Weight of the element category. (Note – if the element category does not have a default line weight, Revit will apply the standard Projection Line Weight as the element is not deemed cuttable).
Bottom Clip Plane – Elements that fall between the Bottom Clip Plane and the Cut Plane present with the default Projection line weights of family category.
Offset from Bottom – Informs the position of total view depth. Refer to Point 4 above for detail on the View Depth and how elements present when located between the Bottom Clip Plane and the Bottom Offset Plane.
Primary Range – can be a little more confusing, but this is essentially the view that extends from the Top Clip Plane down to the Bottom Clip Plane, where the majority of the elements that fall within this range information are shown with default projection and Cut Line Weights and Styles (some minor exceptions, covered in the following steps).
View Depth – Elements that are within the View Depth are depicted with the <Beyond> Line style. Minor exceptions include Ramps, Floors, Foundations and Stairs which follow a Projection line weight until an independent default View Depth of circa 1200mm below Bottom Clip Plane, then convert to <Beyond> Line Style should they occur deeper on the view.
Overall View Range – pretty self-explanatory. The Overall View range extends from the top of the view down to the bottom offset value.
The top plane represents the top of the View Range and the bottom plane represents the bottom of the View Range. The cut plane is located between the top and bottom planes, and it is the dividing line that determines how elements are displayed in the view. The additional plane beyond the primary range is the View Depth. By adjusting the View Depth, you can control the visibility of elements below the bottom plane of the primary range.
There are a few categories for which an element located above the cut plane but partially below the top clip is shown in plan. These categories include windows, casework, and generic models. These objects are shown as viewed from above.
When determining why an element in the Revit plan view is not displaying, a user may try to troubleshoot the situation by referring to the View Range.
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