Seam by Offset Ribbon - Intergraph Smart 3D - Help

Intergraph Smart 3D Molded Forms

Intergraph Smart 3D

Displays the options that you use to place a design or planning seam in the model.

 Seam by Offset Properties

Opens the Seam by Offset Properties dialog box, which you use to view and modify the properties of the seam that you are about to place in the model. For more information, see Seam Properties Dialog Box.

 Plate System

Specifies the plate system that you want to place a seam in. You can select multiple plate systems to place multiple seams at the same time. The software uses the same information for each seam. After placement, the seams are unrelated to each other and can be edited as individual entities.

 Base Curve

Specifies an existing curve or grid plane from which to offset the seam. The intersection of the grid plane and the plate system defines the base curve.


Defines the offset parameters and direction from the base curve. See the Offset Curve Definition Controls section below.


Defines the boundaries of the seam. You can define the boundaries by selecting objects, including other seams, in the model. If you select objects in the model and those objects are moved, the software automatically resizes the seam to maintain the boundary relationship. See the Boundary Definition Controls section below.


Places the seam using the defined parameters.


Clears all selected objects.


Accepts all selected objects.

Plate Split Delay

This option is available only when you modify a design seam.

Select this option to delay the split plate update to a more convenient time. The new position and boundaries of the design seam will appear in the graphic view when this option is selected. However, the plate being split is placed on the To Do List with the message Plate System split was stopped due to delay split with a status of Out of Date. You are responsible for going to the To Do List and updating the plate system at a later time. If you do not select this option, the plate is updated as soon as you move the design seam, which can take several minutes to process, but no To Do List item is created for the plate.

Seam Type

Specifies the type of seam to place. Select Design Seam or Planning Seam.

Offset Curve Definition Controls


Defines offset curves without a stop limit.

 Stop Limit

Defines offset curves with a stop limit. By using a stop limit, you can select an edge, profile landing curve, connection reference curve, or seam to control the landing curves being created. If you type an offset value and the Offset lock is locked, then landing curves are applied at increments of the offset value until the selected stop limit is reached. If the Offset lock is unlocked and a value has been defined for Count, then the landing curves equal to the number typed in the Count box are equally spaced between the base curve and the stop limit.

Offset lock

Locks the Offset value, disabling updates of the offset value by mouse moves.


Specifies the offset distance between the base curve and the landing curve that you are defining. If you type 0, the landing curve is place on the base curve. This box may also display the offset distance as defined by mouse movements.


Specifies an offset method. You can select transverse, longitudinal, vertical, or girth.


Specifies how many seams should be created, each equally spaced by increments of the offset value.


Defines an increment that the system should use as you dynamically move the mouse. If you have typed a value in the Offset box, then this control is not used.

Boundary Definition Controls

 Pick Boundaries

Selects objects in the model or in the Workspace Explorer to define the boundaries. This option is only available when you are defining the boundaries.

 Solve Ambiguity

If the objects that you selected in the model for the boundary define an ambiguous solution, then the software prompts you to select one bounded section to clarify the needed boundary. This ambiguity only occurs if one of the boundaries wraps around both sides of the profile or seam, such as the hull. Move the cursor over a bounded section, and then click to select.

 Boundary List

Opens the Boundary List dialog box. This dialog box allows you to review and define the boundaries. For more information, see Boundary List Dialog Box.