Using Multi-Output

• Intersections
• Projections
• All transformations: translation, rotation, symmetry, scaling, affinity and axis to axis
• Split

Let's take an example using the Projection and Translation functionalities.

Open the Multi-Output1.CATPart document.

1. Click Projection .

   The Projection Definition dialog box opens.

2. Select Normal as Projection type.

3. Select Translate.1 as first element to be Projected.

   If one element is selected and you select another element, it automatically replaces the element you selected previously, providing the multi-selection dialog box is closed. If several elements are selected and you select another element, it is appended to the elements list.

   The selected element (here Translate.1) is highlighted in the specification tree and in the 3D geometry. When you select or edit an element aggregated under the multi-output node, either in the specification tree or in the 3D geometry, its input is highlighted in the 3D geometry, in the specification tree, and in the multi-selection dialog box.               In our example, Project.1 has Translate.1 as input, therefore when you select Project.1 in the specification tree, Translate.1 is highlighted in the 3D geometry, in the specification tree and in the multi-selection dialog box.

4. Click to add elements.

   The multi-selection dialog box (here Projected) opens.
   	Multi-selection is now active: all selected elements are displayed in the dialog box.

5. Select Translate.2.

   Click Remove and Replace to modify the elements list.
   	You can select an element in the list: it is highlighted in the specification tree and in the 3D geometry. You can select one or more geometrical sets and multi-outputs as inputs of the multi-selection. In that case, all their direct children are selected.
   	Clicking Remove deletes the output feature. Therefore adding a new element in the list creates a new output feature. Click Replace instead to replace an input element by another without deleting the output feature.

6. Click Close to return to the Projection Definition dialog box.

7. Select Extrude.1 as the Support element.

8. Click OK to create the projection elements.

   The projection is identified as Multi Output.1 (Project) in the specification tree.
   The created elements are aggregated under Multi Output.1.
   	You can create several multi-outputs in the specification tree, each one grouping one type of elements.

9. Click Translate .

   The Translate Definition dialog box appears.

10. Select Translate.1 and Translate.2 as Element to be translated.

11. Select Direction, distance as the Vector Definition.

12. Select Extract.2 as the Direction.

13. Select -50mm as the Distance.

14. Click OK to create the translated element.

    The translation is identified as Multi Output.2 (Translate) in the specification tree and appears below Multi Output.1.

    The created elements are aggregated under Multi Output.2: all common inputs (in our example, "Length") are directly aggregated under the Multi Output feature and all generated features reference these inputs by pointing the same attribute.

    When selecting elements using the Multi-Output capability, we need information related to: Multi-Output Edition Erroneous Elements Multi-Output Copy/Paste Miscellaneous

    Multi-Output Edition When editing a multi-output, you can only select the elements belonging to the multi-output in the specification tree (not in the 3D geometry). Multi-selection is available when editing a single feature: double-click it in the specification tree and click the bag icon to replace it or add new elements. Multi-outputs and elements aggregated under a multi-output can be edited separately, simply by double-clicking it in the specification tree. Elements can be modified (added, replaced, or removed): the corresponding multi-output automatically updates. It is impossible to create new multi-output features from the contextual menu. You can delete individual multi-output features using the Delete contextual command. Erroneous Elements When one or several elements are in error under a multi-output (during creation or edition) an error message is issued after clicking Preview (Update Error) or OK (Update Diagnosis) and all the features in error are displayed. The datum capability is available. If an element is in error, it cannot be created as a datum element; only elements that could be generated from the multi-selection are created. If an element of a multi-output is in error while being updated, the multi-output itself appears in the Update Diagnosis dialog box. Note that you can delete the multi-output, not the erroneous element. You can delete one or more elements by clicking Delete or Delete all buttons in a single click. Multi-Output Copy/Paste You can copy/paste as result a multi-output: if the paste destination is a geometrical set, a geometrical set containing the multi-output's elements is created. if the paste destination is an ordered geometrical set or a solid body, an ordered geometrical set containing the multi-output's elements is created. Refer to the CATIA Infrastructure User's Guide: Pasting Using the Paste Special... Command for further information. If you copy/paste features that belong to a multi-output and have a least one literal (for instance, Translate, Rotate or Scaling commands), any modification of one of the features' literal leads to the modification of all the other features and the suppression of the first feature resets all the other features' literals. Miscellaneous You cannot select a geometrical set that belongs to another part as an input. You can only select a geometrical set belonging to the same part or a feature belonging to another part. You can manually delete or deactivate all the elements of a multi-output. As a consequence, the multi-output feature disappears from the 3D geometry and erroneous elements can no longer be generated. Similarly, you can activate all the elements of a deactivated multi-output. When editing the multi-output, deactivated features are not displayed. To have further information, refer to Deactivating Elements. Unshared features are aggregated under the parent command that created them and put in no show in the specification tree. Shared features are not aggregated under the parent command. You can move a multi-output to another body. Note that you cannot move some elements of the multi-output alone but only the whole multi-output. To have further information, refer to Managing Geometrical Sets.