Geometry

When defining a box, the position and size must be specified. A box can be created via Add → Box or pressing B on your keyboard.

A mesh is a generic primitive that can take any shape. CAD files which are imported into FLACS are often composed of mesh primitives. Meshes can have the following properties:

• Faces: number of faces in the mesh (not editable)

• Vertices: number of points the mesh consists of (not editable)

• Is closed: when set to true the mesh is a closed 2-manifold (not editable)

• Force closed: when set to true the mesh will be forcefully interpreted by the porosity calculator as being closed.

Creates a group (union) containing the selected primitives and operations. This will prompt the user for a group name, and put the selected items under a new top-level group.

Primitives can be grouped via Edit → Group in the menu bar or by using the shortcut Ctrl+G.

Primitives can be ungrouped via Edit → Ungroup in the menu bar or by using the shortcut Ctrl+U.

Left difference can be used to subtract objects from marked objects. To create a left difference:  

1. Mark the object(s) that you want to edit using Ctrl+M

2. Select the object(s) you wish to subtract

3. Add left difference via Add → Left Difference or by pressing L on the keyboard

An example of a cylinder with a smaller cylinder subtracted from via using the left difference operation is shown below.

The scale command allows the user to scale selected objects. The command can be accessed via Edit → Scale or by the shortcut Ctrl+Shift+S. An origin for scaling and a scaling factor must be defined.

Similar to the scale command however, an object can be scaled independently in each direction. The command can be performed via Edit → Scale XYZ or by the shortcut Shift+S.

The origin for scaling must be defined along with a scaling factor for each axis.

Rotate command can be used to rotate objects. The command can be performed by selecting the object(s) to be rotated and rotating via Edit → Rotate or by pressing the R key. An origin, axis and angle of rotation must then be defined.

The translate command can be used to translate selected objects by a distance specified for each axis. The command can be performed by selecting the object(s) to be translated and pressing T or via Edit → Translate.

The duplicate command can be used to duplicate selected objects. Multiple duplicates can be created simultaneously. The number of duplicates along with the distance between each duplicate must be specified.

The duplicate command can be performed by selecting the object to be duplicated and pressing D or via Edit → Duplicate.

The properties of object(s) can be edited by using the Properties command. This can be accessed by pressing P or via Edit → Properties. Multiple properties, such as dimensions and position can be edited by the command.