Primitive Block


The primitive Block is a predefined geometric shape that is used to create a parallelepiped.

The primitive Block can be created, modified, removed or used in other geometric operations (for example in a Boolean operation).

Structure of the primitive

The primitive Block is described by:

  • A coordinate system for the creation of points ( active coordinate system in the list available on the graphic View)
  • The coordinates of the origin point of the parallelepiped base or an existing point
  • The dimensions of the parallelepiped (length, width, height) defined in the active coordinate system
  • The appearance of the parallelepiped (color and visibility)
Dialog box Illustration


The creation of a Block primitive results in the formation of:

  • Geometric entities (point, line, face, volume and object)
  • A Geometric operation Block_1. This geometric operation is a specific entity of the modeler that permits to ensure the life cycle of the primitive (creation - modification - removal).


The different ways to access the primitive Block are:

  • By menu: Construction > Block > New
  • By icon:

Creation of a block

The creation process of a primitive Block is presented in the table below.

Stage Description
1 Choice of the coordinate system for the primitive creation
2 Opening the dialog box Primitive Block

Choice of the name of the generated Geometric operation

(by default : BLOCK_1)


Definition of the origin point

  • Either by coordinates
  • Or by selection of an existing point
5 Definition of the parallelepiped length (on X)
6 Definition of the parallelepiped width (on Y)
7 Definition of the parallelepiped height (on Z)

Choice of color visibility / appearance

(by default : visible and turquoise)

9 Validation by clicking on OK

The following entities are created in the tree :

  • 1 object OBJ_BLOCK_1
  • 1 volume, 6 faces, 12 lines and 8 points
  • 1 geometric operation BLOCK_1