# Dimensional Constraint [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [User Guide](Help%20System/GSTARCAD/2021/User%20Guide/(User%20Guide).md) → [Additional Pages](Help%20System/GSTARCAD/2021/User%20Guide/Additional%20Pages/(Additional%20Pages).md) ### **Dimensional Constraint** They look exactly like dimensions, but Dynamic dimensional constraints act in the opposite way. Dimensions are driven by objects in change dimensional constraints drive and determine the lengths, radial sizes, and angles of objects. They also control the distances or points between objects. **[Constraint Types](Dimensional%20Constraint%20Types--489a87f5236f.md)** **[Constraint Settings](Constraint%20Settings--69e071ab00dd.md)** **[Delete and Hide Constraints](Hide%20and%20Delete%20Dynamic%20Constraints--3b7917e3eb66.md)** **[Constraint Manager](Parameters%20Manager--d4985531bf67.md)** **[Expression](Parameters%20Manager%20Expressions--def75b4bf915.md)** --- Gstarsoft Co.,Ltd ## Other versions with matching text [GstarCAD 2017](../../../2017/User%20Guide/Additional%20Pages/Dimensional%20Constraint--14be12775116.md) · [GstarCAD 2018](../../../2018/User%20Guide/Additional%20Pages/Dimensional%20Constraint--14be12775116.md) · [GstarCAD 2019](../../../2019/User%20Guide/Additional%20Pages/Dimensional%20Constraint--14be12775116.md) · [GstarCAD 2020](../../../2020/User%20Guide/Additional%20Pages/Dimensional%20Constraint--14be12775116.md)