It is helpful to consider some convenient terminology:
Elements are objects we add to the model.
When we add elements, we may need to select other elements that are already in the model - we call the other elements: Reference Elements.
Reference-elements are those elements that may need to be in the model before we can add a new element.
If you want to delete a Reference-element you may also delete those elements that can only exist with the Reference-element.
A pop-up warning will list those elements that you will also delete in addition to the Reference-Element.
Thus, it may be useful to review the relationships between elements before you delete an element.
It is possible that you cannot delete an element before you delete a Reference-element.
To open the Reference Elements dialog-box
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Example 1: Reference-Elements of a CAD-Line: Its reference-elements are simple - there is a Point at each end of the CAD-Line
Note: The derived-name of the Point with the lower-number (Point22) is the start-Point of the CAD-Line The derived-name of the Point with the higher-number (Point25) is the end-Point of the CAD-Line |
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Example 2: Reference-Elements of a 2D-Cam Its reference-elements are:
AND Reference-Elements are:
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