Constraints

The Interactive Drafting workbench lets you create geometrical constraints, which specify explicitly how the geometry should behave. A constraint applies to up to three elements. In the Interactive Drafting workbench, constraints are created either through the constraints creation command or via SmartPick.

Note the following points:

• when you use SmartPick, you detect geometric constraints dynamically. But SmartPick can simply be used to automatically detect constraints without necessarily creating them. For information on creating constraints using SmartPick, see Creating Constraints via SmartPick in the SmartPick chapter.
• In the Interactive Drafting workbench, dimensional constraints do not exist as such. It is by creating driving dimensions that you can drive constrained geometry.
• If you want constraints to be created, make sure the Show Constraints icon , and optionally the Create Detected Constraints icon , are active before you start creating constraints.

	Before you begin: You should be familiar with important concepts.
	Creating quick constraints: Quickly set geometrical constraints.
	Create constraints via a dialog box: Set geometrical constraints via a dialog box.
	Create contact constraints (documented in the Sketcher User's Guide): Apply a constraint with a relative positioning that can be compared to contact.
	Create constraints between 2D and generated elements: Create associative constraints between 2D elements and generated elements (Generative Drafting workbench).