# 3DORBITCTR Command [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [Commands](Help%20System/GSTARCAD/2021/Commands/(Commands).md) → [3D](Help%20System/GSTARCAD/2021/Commands/3D/(3D).md) The 3DORBITCTR is used to set rotation center in 3D dynamical observation view. **Command Access:** > **Command:** 3DORBITCTR **Command Prompts:** > Specify orbit center point: > Press ESC or ENTER to exit, or right-click to display shortcut-menu. **Function Description:** Activate 3D dynamical observation view and use specified orbit center by pointing device. If specifying a point beyond the current viewport, the 3DORBITCTR command will ignore the specified point and use the default point.. ## Other versions with matching text [GstarCAD 2016](../../../2016/Commands/3D/3DORBITCTR%20Command--4293fe1f89e9.md) · [GstarCAD 2017](../../../2017/Commands/3D/3DORBITCTR%20Command--4293fe1f89e9.md) · [GstarCAD 2018](../../../2018/Commands/3D/3DORBITCTR%20Command--4293fe1f89e9.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/Commands/3D/3DORBITCTR%20Command--4293fe1f89e9.md) · [GstarCAD 2020](../../../2020/Commands/3D/3DORBITCTR%20Command--4293fe1f89e9.md)