Using a Section Box in
a 3D View
You can use a section box to clip the viewable
portion of a 3D view. When you enable a section box in a 3D view, the
only change to the view is the addition of the section box. The
following image shows a 3D view with a section box enabled.
After you enable the
section box, you can modify its extents using drag controls in the
3D view, or you can modify extents from other views, for example
a plan or elevation view. Section box extents are not cropped by the
view’s crop region.
To enable a section box:
- Open a 3D view.
- Click Modify Cameras tabElement
panelElement Properties drop-downInstance Properties.
- In the Instance Properties dialog, under
Extents, select the Section Box option.
- Click OK.
- Select the section box and use the drag
controls to modify the extents, as necessary.
The following image shows the section box selected
with the blue arrow drag controls visible. The section box extents
have been modified to cut into the stair tower.
To modify section box extents outside
of the 3D view:
- Enable the section box in a 3D view.
- Open an associated view, for example
a plan or elevation view.
- In the Project Browser, right-click the
3D view name, and click Show Section Box.
- Drag the blue arrow controls to resize
the section box.
To control visibility of section box extents:
- Click View tabGraphics panelVisibility/Graphics.
- In the Visibility/Graphics dialog, click
the Annotation Categories tab.
- Clear the check box for Section Boxes,
and click OK. This hides the section box extents in the view. Select
the check box to show the extents.