Construction tools: symmetry

Symmetry

The mode of construction « Symmetry*» permits the graphic description of the symmetry of an assembly of entities « Point » and « Line » in relation to:

• a standard line or a reference line
• a standard point or a reference point

* Do not mistake it with the « Symmetry of the domain » (available in the menu Domain, which permits to define physically the study domain and geometrically the infinite box closing the study domain

Access / Cursor

The different accesses and the personalized cursor for this mode of creation are presented in the following table:

Access		Cursor
By icon:
By menu: Tools → Symmetry

Dialog box

After the activation of this mode, a dialog box containing all the necessary fields and options to apply symmetry will appear.

Option	Description	Illustration
Graphic selection	Permits retrieval of information on the list of entities to be symmetrised by selecting them graphically*
Symmetry axis	Permits retrieval of information on the axis of symmetry, or a point or a line, by selecting them graphically
Connect to origin	Option common to all the modes of construction symmetry and repetitions (see Construction tools: generalities )

Apply a symmetry

The process to apply Symmetry is presented in the table below.

Variant : Select the entities to be “symmetrised” before activating the mode permits to open the dialog box with the field « Graphic selection » pre-filled