Graphics Programs Reference
In-Depth Information
particular type of plan. It can be frustrating and time-consuming to have to
turnoffunwantedmodelelementseverytimeyouopenorcreateanewview.
There are two primary areas of visibility control within a view: the View
Range settings, which determine the field of view when you're looking at
the model, and the Visibility/Graphics Overrides settings, which allow for
turning categories of elements on or off as well as other aspects of their
appearance. Setting default values for these parameters is a key element of a
good project template. Because working in a Revit project is a collaborative
exercise, it is good to have the objects in your views appear as expected and
not to have objects showing up from other disciplines as they are placed in
the model. For example, in a plumbing floor plan, you would want to use
the Halftone check box under Visibility/Graphics Overrides for mechanical
equipment and turn off all ducts, air terminals, fire-protection elements,
and so on. The pipe visibility can be controlled with filters, so you can
turn off the mechanical pipe systems. The end result is a plumbing plan
displaying only the elements that are relevant to the plumbing discipline,
with all others either turned off or displayed in halftone.
View Range
There are two parts to View Range: Primary Range and View Depth. The
primary range consists of the top, bottom, and cut plane of a view. For a
floor plan, Top defines the elevation from which the model is being viewed.
Bottom is the extent to which the model is being viewed from the Top
setting. In other words, it is how far you are looking. Cut Plane refers to an
imaginary planethatcutsthroughthearchitectural andstructural elements.
The portions of these elements in a floor plan view that are above the cut
plane elevation are not visible.
For a ceiling plan\view (also called a reflected ceiling plan), the view is the
otherwayaround.Essentiallyitisasifyouarelookingupfromthecutplane
to the top of the view.
The View Depth setting can be used to extend the range of view beyond the
top or bottom. However, any elements that fall within that range will not
react to any overrides assigned to their category in the view. In other words,
if you override the color of pipes to be blue in a view, only pipes that are
between the Top and Bottom settings of the view range will be blue. Any
pipes that fit within the range of the View Depth setting are displayed with
the style assigned to the <Beyond> Line style, which can also be adjusted
