Creating Section ViewportsCreating Section ViewportsA section viewport creates either a vertical or horizontal cross section view of a model at a defined cut plane, but leaves the model intact. Use the Create Section Viewport command to create a vertical section viewport, and the Create Horizontal Section Viewport command to create a horizontal section viewport.
The section viewport can display a 2D cross section view of only the objects that intersect the cut plane, or you can opt to display objects and hidden objects that are located beyond and/or before (and above and/or below) the cut plane. For a cleaner appearance, you can choose to display 2D components of 3D symbols and many plug-in objects positioned normal to the view (see Concept: 2D Components for Symbol Definitions and Plug-in Objects). Within a section viewport, you can set display and attributes settings for the viewport overall, and then create override settings for 3D objects in the view by class or individually (see Displaying 3D Objects in Section Viewports).
Create a section viewport from a design layer, from a clip cube, or from a non-section viewport on a sheet layer. A section viewport that is created from a design layer or clip cube can be updated when changes are made to the design layer. However, a section viewport that is created from a viewport does not maintain a connection to the viewport that created it. It updates when the design layers that are visible in the source viewport change.
A section viewport can be created on either a sheet layer or a design layer; the functionality and purpose of the two types of section viewports are different.
● Sheet layer section viewports can include annotations and automatic drawing coordination of the sheet and drawing numbers; also, if there are multiple viewports on a sheet layer, each can a have different view and scale.
For sheet layer section viewports, to automatically coordinate the sheet numbers and drawing numbers among the title blocks, drawing labels, and section markers in a file, select Use Automatic Drawing Coordination in the Display tab of the Document Preferences. This feature keeps references up to date, even when drawings are edited or moved to a different layer.
● Design layer section viewports are useful when, for example, a detail section is needed in a Front rendered view. A design layer section viewport allows comparison between a section and an elevation view. In a team environment, the design layer section viewport can be referenced in other files.
In addition to the section line instance that is automatically created with a vertical section viewport, a section-elevation marker can be linked to a vertical section viewport for annotation; see Section-Elevation Marker Tool.
Interior elevation viewports are a subcategory of vertical section viewports that display as many as four elevations of a space as seen from within the room, without creating a cross section of the model; see Creating Interior Elevation Viewports.
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