# Primitive Block

## Introduction

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

## Result

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).

## Access

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
3

Choice of the name of the generated Geometric operation

(by default : BLOCK_1)

4

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)
8

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