Set constraints and relations on objects in the drawing and control your drawings via parameters
It is possible to set relations between objects in the drawings and constraints on their parameters: co-axis, fixed dimension, parallel, tangent, etc. Thus, you can create a 'living' drawing, which is possible to change according to the rules you previously set.
Parameter Manager allows you to link dimensions and constraints by means of mathematic equations. Just change the numeric values, and the drawing will be dynamically changed in accordance with predetermined rules.