Add a Fixed Constraint (Concept)

Create and Modify Objects > Create and Use Blocks (Symbols) > Add Dynamic Behavior to Blocks > Add Constraints to Dynamic Blocks > Add Geometric Constraints to Dynamic Blocks >

Add a Fixed Constraint

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Concept

Quick Reference

A fixed constraint fixes a point or curve to a specified location and orientation relative to the World Coordinate System (WCS).

Apply a Fixed Constraint

In the example below, a fix constraint has been applied to the rectangle on the top. The result is the block definition on the bottom, where the bottom-left corner of the rectangle is fixed to the specified coordinate. The red X indicates the constrained point on the rectangle.

Manipulate a Fixed Constraint

When you manipulate a block with a fix constraint applied, the specified point will always remain positioned at the same WCS coordinates.

In the example below, the geometry of the rectangle on the top has been manipulated. The other three corners of the rectangle can move, but the constrained point will remain in the same position.