Autodesk Revit: An introduction to Crop Regions

In this Autodesk Revit tutorial I am going to show you how to use Crop Regions. If you’d like to watch the video version of this tutorial first, simply click in the box below….

 

 

Crop Regions allow to “mask off” parts of you view, just leaving visible the area that you are interested in. Take the following example…

 

 

 

In the image above we can see part of the plan of a building. In the upper left hand corner of the building we can see a room named “Classroom 1”. Now let’s say that we want to produce a view that ONLY shows this room- and not the rest of the building or site. This is where we would use Crop Regions.

There are two main controls for working with Crop Regions and both can be found on the View Control Bar…..

 

 

 

 

The 2 buttons (referenced in the above image) are:-

  1. Crop Region Enable / Disable toggle: This toggles on and off whether the view is cropped or not. A little red cross on the icon tells you this setting is currently set to OFF.
  2. Crop Region Visibility Enable / Disable: This toggle on and off the actual visibility of the Crop Region Boundary- regardless of whether the view is being cropped or not. The lightbulb on the icon glows when this setting is turned ON.

 

SO let’s go ahead and turn on the visibility of the Crop Region Boundary. Simply hit the Crop Region Visibility on the View Control Bar – (2) in the above image. The lightbulb on the icon will glow yellow when it’s turned ON. Once activated, you’ll see a thin rectangle hovering over your view. This is the boundary of the Crop Region….

 

 

 

 

Go ahead and select the Crop Region boundary by clicking on any of it’s 4 edges. Once selected it will turn blue and you’ll see a small blue circular grip, one on each side…..

 

 

 

 

You use these grips to adjust each side of the boundary. Go ahead and use you cursor on each grip in turn, dragging the boundaries until those closely surround “Classroom 1”. At this point the view is still not being cropped. All we have down is made the Crop Region boundary visible and adjusted it’s extents so that it surrounds the area we want to crop to. To actually crop the view simply hit the “Crop Region: Enable / Disable” icon on the View Control Bar…..

 

 

 

 

When you do so the little red cross will disappear from the icon and the view will be cropped. Our view now looks like this….

 

 

If you’d prefer to not see the boundary of the Crop Region, just toggle off it’s visibility using the button on the View Control Bar. Our view now looks like this….

 

 

You can also control the Crop Region from the Properties Palette. Just ensure you have no element selected in the view- you should see the properties for the view itself. Look down the list of properties until you find the “Extents” group. In this group you will find parameters for “Crop View” (1), “Crop Region Visible” (2). These parameters relate to the 2 icons on the View Control Bar. You’ll also find an “Annotation Crop” checkbox (3). Go ahead and turn this option on by checking the box.

 

 

 

 

When you turn on the Annotation Crop, a second crop boundary appears outside of the first. The second boundary is displayed in a blue dashed line. The important thing here is actually the space occupied BETWEEN the two boundaries. In this “zone” annotation elements (i.e. Text, Grid Line References, etc) can be seen but NOT model elements. In the image below you’ll see the Room Tag (text note in effect) that reads “WC 15m2”. Notice how this sits outside of the “Primary” Crop Region boundary- but is still visible because it resides INSIDE of the Annotation Crop boundary.

The Annotation Crop boundary can be adjusted in size using it’s grips. However, it will ALWAYS reside outside of the Primary (i.e. Model) Crop Region boundary.

 

Key Points

  • Crop Regions allow you to mask of the part of the view you don’t want / need to see
  • Crop Region boundaries can be hidden even while the view itself is cropped
  • Use Annotation Crops to display text and / or annotations outside of the model Crop Region boundary
Posted in Autodesk Revit.