just a small search on the online guide by pressing the f1 key: dimensional constraints allow to maintain specific distances and angles between geometric objects or points on objects.
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parametric design is a technique that is used to create drawings containing constraints. constraints are associations and restrictions that are applied to 2d geometry.
there are two main types of constraints:
geometric constraints that control the reciprocal position of objects
dimensional constraints that control the values of distance, length, angle and range of objects
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during the design phase of a project, the constraints allow to make sure that the specified requirements are always met when experimenting new designs or making changes. changes made to an object can automatically reflect on other objects, as well as limit changes valid for distance and angle values.
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etc.
Young man, for example, establish that a given line should be parallel to a line b.
line b must be perpendicular to line c.
These are geometric constraints.
What does that mean? means that if you rotate c, automatically it will be rotated b until it is perpendicular to b and it will be rotated also to, because having to be parallel to b, if wheel b also rotates to.
for dimensional constraints is the same course. establish that there should be a distance of (b-c*1.5. )
shifts c and automatically moves you to the corresponding calculation value.
shows all constraints shows the icons of the inserted bonds.