Allows you to vary a dimension between two values to see how the sketch reacts (useful for checking mechanism movement within the sketch).
Mastering Sketch-Based Design in CATIA V5: A Comprehensive Guide to the Sketcher Workbench Tools catia+v5+sketch+tools
To truly master Catia V5 Sketch Tools, follow this checklist for every sketch: Allows you to vary a dimension between two
When you select a constraint (or use the Constraint tool), you can double-click it to edit the value or add/remove geometrical properties. Mastering Sketch-Based Design in CATIA V5: A Comprehensive
The most used tool. It allows you to draw a series of connected lines and arcs.