2D Automatic Constraints

When you are adding a line, some geometric constraints are automatically created, when the 2D Automatic Constraints setting is enabled. Following constraints are automatically generated:

  • If you add a line parallel to another line by using the E key, a parallel constraint is automatically created.
  • If you add a line perpendicular to another line by using the T key, a perpendicular constraint is automatically created.
  • If you add a line with the tangential ruler using the point-arc or arc-arc setting, a tangential constraint will be created.
  • If you use the the parallel ruler, a parallel constraint is created.

If necessary, you can disable the 2D Automatic Constraints when the drawing window is active. In this case, no constraints are automatically added when the line drawing functions are used.

You can disable and enable the 2D automatic constraints as follows:

  1. Select > Preferences Drawings, Models.
  2. Select the Usage tab.
  3. Select or clear 2D Automatic Constraints.
  4. Confirm by clicking OK.

The setting remains even after the program is restarted.

Note:
  • The setting is available, when 2D Constraint Manager is enabled.
  • The setting does not affect the geometric constraints that are used to bind the building components of a parametric building model to each other (walls, windows, doors, roofs, etc.).
  • Drawing elements containing constraints retain their constraints if the 2D automatic constraints are disabled during design work. Instead, geometric constraints will not be added to new elements added afterwards.
  • You can delete a constraint automatically added to a line by selecting the line and then selecting the context-sensitive function Properties.