JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Perimeter Constraint Used to constrain the perimeter of a geometry. You can access this tool from the following: Ribbon: Modeling > Constraints > Dimensional Ribbon: Drawing > Constraints > Dimensional Toolbox: 2D Constraint Tools Key-in: CONSTRAINT2D CREATE PERIMETERCONSTRAINT To Apply a Perimeter Constraint Parent topic: Applying Constraints