Keeping the Initial Element

This task shows you how to retain an element on which you are performing an operation. When this command is active, as soon as you perform an action in which you create or modify geometry, in fact, you are working on a copy of the initial element.

Open the FreeStyle_Part_39.CATPart document.

  1. Select the surfaces and click the Offset icon:

The Offset dialog box appears. The offset surface is automatically visualized as a meshed surface.
 

  1. Click the Keep Original icon:

  1. Click OK in the current command.
 

The initial element remains unchanged and a new element is created.
 

  • When the Keep original option is not selected, the initial element is replaced by the new element.

  • When the initial element is referenced by another element, it is always kept, and the new element is created, even if the Keep original option is not selected.
     

The Keep original icon remains active once you click OK, providing it was active while performing the command (and vice-versa).
  The combined behavior of Keep original and Create Datum mode with different results is detailed in the following tables,

If input is feature:
Input Keep original  Datum Output Result
Feature Datum Input is not replaced, new datum will be created.
  Feature Input is not replaced, new feature will be created.
  Datum Input is not replaced, new datum will be created.
    Feature Input is not replaced, new feature will be created.

=  Activated

If input is datum:
Input Keep original  Datum Output Result
Datum Datum Input is not replaced, new datum will be created.
  Feature Input is not replaced, new feature will be created.
  Datum Input is replaced with the newly created datum.
    Feature Input is not replaced, new feature will be created.

=  Activated
The Keep original command in FreeStyle Shaper, Optimizer and Profiler (FSS) workbench  and the  Keep, No Keep and Default commands in the Generative Shape Design (GSD) workbenches support each other in activating\deactivating the options from either of the workbenches. For e.g. If the Keep command is selected in GSD workbench, the respective Keep original command gets activated in the FSS workbench (and vice-versa).

The association between the commands is detailed in the following table,
 

Generative Shape Design
Workbench

FreeStyle Shaper, Optimizer and Profiler
Workbench
Default Keep  No Keep Keep original activated Keep original deactivated
     
     
     

=  Activated