VIEW RANGES – WHY ARE THEY SO CONFUSING?

VIEW RANGES – WHY ARE THEY SO CONFUSING?

Did you go immediately to the Visibility Graphics dialog to make sure that the walls are checked or turned on? Did you then throw your hands up in despair because you didn’t know what to do next?

Yes? So have I.

While it is often confusing and making changes can seem terrifying out of fear of messing up your whole project, the view range is actually an incredibly useful tool to understand. Hopefully by the time you get to the end of this short explanation, you will be a pro and be able brag to your friends at the office happy hour.

Let’s start at the beginning.

What exactly is the view range?

Simply put, each view is just a horizontal slice through the model and the view range controls exactly what you see in a particular plan view. The view range controls the height and depth of the slice, along with how the items in the slice will be represented. It’s not just WHAT is visible but also HOW it is displayed.

  • The parameters within the view range are all instance parameters, meaning they are not (necessarily) the same for each plan view.
  • You can find the view range in the ‘Properties’ column under ‘Extents’.

Untitled-design-1-300x251

The view range dialog box is deceptively simple. But what do these fields mean?ViewRangeDialog

Top: Any element above this height will not be displayed. Any element below this but above the cut plane will be displayed according to the element’s projection object style.
RevitTipCut plane:
 Elements that intersect or pass through this height will be displayed according to the cut properties of the element’s object style. In other words, the height elements will be “cut.”

Bottom: The base of the primary view range. Any elements at or above this height but below the cut plane will be drawn according to the projection object style.

View Depth: Must be set below the bottom height. Any objects below the bottom height and above the view depth level will be displayed in the beyond line style.

There are some exceptions to the view depth. Some items that will still appear if they are beyond the view depth, exceptions to this are floors, ramps, stairs and any component that is hosted by a floor. These items ARE shown, even if they are slightly outside of the View Range boundaries.

We hope this short explanation helped and that you won’t be throwing your hands up in despair anymore. At least when it comes to view ranges. Another representation is below thanks to our very own Chris Kane.

ChrisViewRange (2)Still don’t get it? There may be hope for you yet. Check out these other resources for more explanations:

Revit Zone: http://www.revitzone.com/revit-fundamentals/142-view-range-explained

AUTODESK: http://knowledge.autodesk.com/support/revit-products/learn-explore/caas/CloudHelp/cloudhelp/2016/ENU/Revit-DocumentPresent/files/GUID-D5545CBE-822F-4A55-820E-6813AAA63888-htm.html

AUGI: https://www.augi.com/library/understanding-view-range