# Geometric Constraint Bar [GstarCAD 2018](Help%20System/GSTARCAD/2018/Index.md) → [User Guide](Help%20System/GSTARCAD/2018/User%20Guide/(User%20Guide).md) → [Additional Pages](Help%20System/GSTARCAD/2018/User%20Guide/Additional%20Pages/(Additional%20Pages).md) ## Geometric Constraint Bar (Display and Hide Constraints) The GstarCAD Geometric Constraint Bar provides many different methods for displaying or hiding constraints. Not only can all the constraints be quickly shown or hidden,it can also control, if the specified constraints you selected are displayed or not and it can control associated constraints with specified objects.  **Geometric Tab** Controls the display of constraint types on constraint bars. Infer Geometric Constraints: Infers geometric constraints when creating and editing geometry. Constraint Bar Display Settings: Controls the display of constraint bars or constraint point markers for objects in the drawing editor. You can, for example, hide the constraint bars for Horizontal and Vertical constraints. Select All: Selects the geometric constraint types. Clear All: Clears the selected geometric constraint types. Only Display Constraint Bars for Object in the Current Plane: Displays constraint bars for geometrically constrained objects only on the current plane. Sets the transparency level of constraint bars in a drawing. Show Constraint Bars After Applying Constraints to Selected Objects: Displays relevant constraint bars after you apply a constraint manually or when you use the AutoConstrain command. Temporarily Display Constraint Bars When Objects Are Selected: Temporarily displays the constraint bars of the selected objects. Constraint bar transparency:controls the transparency of the constraint bar (constraint icons).The value 100 stands for not transparent and the value 0 stands for transparent. **Parametric Tool Bar**: controls the display or hide the constraint bar,but different with"Constraint settings"panel.You have to check the relevant options, if you want to control wether constraints are displayed or not.  --- Gstarsoft Co.,Ltd ## Other versions with matching text [GstarCAD 2017](../../../2017/User%20Guide/Additional%20Pages/Geometric%20Constraint%20Bar.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/User%20Guide/Additional%20Pages/Geometric%20Constraint%20Bar.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/User%20Guide/Additional%20Pages/Geometric%20Constraint%20Bar.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/User%20Guide/Additional%20Pages/Geometric%20Constraint%20Bar.md)