Partial Update Design

When using Draw in Model, Partial Update Design functionality is available (which is not available in standalone Draw). Normally, modifications in the design are propagated into a 2D drawing sheet by using the Update Design functionality, usually invoked by user. The Update Design functionality can be used in various ways as a tool on the ribbon or as a command line operation. All the design elements referenced by a 2D drawing sheet (or part of a sheet, for example, a view) are updated as a result of an Update Design operation. For example, all referenced design elements are updated.

Partial Update Design performs an update to the 2D drawing canvas for individual design elements as they are modified and not for all referenced design elements, as with Update Design. The update mechanism is invoked automatically when design elements are modified in the Model and does not require any call for update by the user. To enable Partial Update Design functionality, Automatic Update Design must be turned on. The view selected as the Current Owner will be considered for Partial Update Design when any of the referenced design elements are modified. The required conditions to operate Partial Update Design are:

• Automatic Update Design must be turned on. Refer to Status Bar for further information.

• The view must be selected as the Current Owner to be considered for update.

• The modified design element must be referenced by the view that is selected as the Current Owner.

The purpose of the Partial Update Design functionality is to synchronize the 3D view design updates with the 2D drawing canvas. Design element modifications that are performed in the 3D view should automatically affect the target 2D drawing view, if relevant to the view.

The fact that only modified design elements are updated by Partial Update Design means that the view can become distorted in the sense that surrounding design elements are also affected and should really be redrawn but are not. Distortion is evident typically in views set for hidden line removal or views set for symbolic representation. A real rendered design is obtained only through a complete Update Design operation.