Split Best Practices - Intergraph Smart 3D - Help

Intergraph Smart 3D Molded Forms

Intergraph Smart 3D
11 (2016)

Execute Split  divides large plate and profile systems into smaller subsystems. The systems can be split by intersection and design seams. Execute Split automatically creates intersection seam at the intersection of two objects. Use the following best practices when working with the command. For more information, see Execute Split.

Continuities and priorities

After you place a plate or a profile, specify continuity and priority before splitting.

  1. Select plate or profile system. You can select more than one system if they are to have the same continuity and priority.

  2. Click Properties on the ribbon bar.

  3. On the Main tab, specify Continuity and Priority.

  4. Click OK.

Continuity defines how the object reacts when it intersects another object. Select Continuous to indicate that the object penetrates the other object. Select Intercostal to indicate that the object is penetrated by the other object.

Priority specifies which object is penetrated when two similar objects with the same continuity value intersect. An object with a lower continuity priority (for example, 1, 2, or 3) penetrates other object with a higher continuity priority (for example, 7, 8, or 9).

Design seams

Split intercostal structure with continuous structure before placing design seams on the intercostal structure. For best performance, create all design seams, and then execute split before detailing for best performance.

Review the Split List

Each object by default is set as a split (intercostal) or splitter (continuous) object based on the continuity and priority properties you specify.

  1. If a row in the split list is highlighted in red, there is ambiguity in the split-splitter relationship. Modify the continuity and priority properties of the objects as needed.

  2. Click Invert to swap split and splitter objects.

  3. Click Finish after reviewing the list.

Split the objects in batches rather splitting entire objects at the same time. Splitting early and often reduces the computation time.

Splitting late in design

When modifying or creating a split after detailing, many parts are affected. In this case, use the following workflow:

  1. Turn on Delay Struct Detailing

    1. Go to Tools > Delay Settings.

    2. On the Delay Setting tab, select Delay Struct Detailing.

    3. Click Apply, and close the dialog box.

  2. Split

    1. Select the objects to split or a split to modify.

    2. Click Execute Split .

    3. Review the split list as needed, and then click Finish.

  3. Turn off Delay Struct Detailing

    1. Go to Tools > Delay Settings.

    2. On the Delay Setting tab, clear Delay Struct Detailing.

    3. Click Apply.

  4. Update

    1. On the Update To Do Records tab, click Update Objects.

    2. Click OK to close the dialog box.


Use Un-split command to remove a split. You can use the seam that caused the split again at a later time.

  1. Select Tools > Un-Split from the menu.

  2. Click Select on the ribbon.

  3. Select the seam that caused the split to undo.

  4. Click Un-Split.