Page 5: Box

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  • box panel
  • Figure 1 – Box Interface

Purpose:

This interface is used for showing, creating, modifying, and deleting the following LS-DYNA keyword cards:

  • *DEFINE_BOX
  • *DEFINE_BOX_ADAPTIVE
  • *DEFINE_BOX_COARSEN

The creation and modification can be carried out by various method such as selecting nodes by area, by polygon, and all visible. There are also facilities for translation and scaling.

Controls:

  • rbs Show – Show existing *DEFINE_BOX entities
  • rb Create – Create new *DEFINE_BOX entities
  • rb Modify – Modify existing *DEFINE_BOX entities
  • rb Delete – Delete existing *DEFINE_BOX entities

For Show, Modify, and Delete, the Entity Operation Interface is displayed in the secondary controls area. For Create, the bottom panel is as shown in Figure 2 below.

  • Label: Select label type

  • Type: Select entity type

All

 Select all * DEFINE_BOX entities

None

 Deselect all * DEFINE_BOX entities

Rev

 Reverse selection

Alist

 Select all entities within the selected range

Apply

 Apply entries for creation/modification or selections for deletion

Cancel

 Cancel entries for modification

Write

  Write box to file

Done

 Exit *Define_Box Data interface

  • Click item from list to select (1)


Bottom Panel:

  • box bottom
  • Figure 2 – Create Bottom Panel
  • Title: Enter box title
  • BOXID: Enter box ID
  • PID: Enter PartID – If zero, all active elements are considered (only available for type: *BOX_ADAPTIVE)
  • LEVEL: Maximum number of refinement levels for elements in box (only available for type: *BOX_ADAPTIVE)
  • IFLAG: Enter 0/1 (only available for type: *BOX_COARSEN)

  • X: Enter Minimum/Maximum X-coordinate
  • Y: Enter Minimum/Maximum Y-coordinate
  • Z: Enter Minimum/Maximum Z-coordinate

  • rbs MinMax – Select two nodes as minimum and maximum for box
  • cbc Min – Pick node as minimum extreme of box
  • cb Max – Pick node as maximum extreme of box
  • rb Areain – Select nodes inside a user defined area for the box
Allvis Mode

 Select all visable nodes as maximum and minimum of box

  • rb Polyin – Select nodes inside a user defined region for the box
Allvis Mode

 Select all visable nodes as maximum and minimum of box

  • rb Translate – Translate box
  • cbc X – Translate box in x direction
  • cb Y – Translate box in y direction
  • cb Z – Translate box in z direction

  • Distance: Enter distance to translate box

Tran-

 Translate in negative direction

Tran+

 Translate in positive direction

  • rb Scale – Scale box
  • cbc X – Scale box in x direction
  • cb Y – Scale box in y direction
  • cb Z – Scale box in z direction

  • Scale: Enter scale factor

Scale-

 Scale box down

Scale+

 Scale box up

  • rb Drag – Drag box
  • This option is currently unavailable


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