# About Entering 3D Coordinates [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [Commands](Help%20System/GSTARCAD/2027/Commands/(Commands).md) → [Concepts](Help%20System/GSTARCAD/2027/Commands/02%20Concepts/(Concepts).md) When you create objects in 3D, Cartesian, cylindrical or spherical coordinates are used to locate points. **Enter X.Y.Z coordinates** 3D Cartesian coordinates determine a precise location by using three coordinate values: *X*, *Y*, and *Z*. Entering 3D Cartesian coordinate values *(X,Y,Z*) is similar to entering 2D coordinate values *(X,Y)*. In addition to specifying *X* and *Y* values, you also specify a *Z* value using the following format: *X,Y,Z* **Enter Spherical Coordinates** 3D spherical coordinates specify a location by a distance from the origin of the current UCS, an angle from the *X* axis in the *XY* plane and an angle from the *XY* plane. You specify a point using *absolute* spherical coordinates with the following syntax: *X<[angle from X axis]<[angle from XY plane]* Enter the @ sign followed by the relative spherical coordinate values, if you need to define a point based on a previous point. **Enter Cylindrical Coordinates** 3D cylindrical coordinates describe a precise location by a distance from the UCS origin on the *XY* plane, an angle from the *X* axis in the *XY* plane, and a *Z* value. You specify a point using *absolute* cylindrical coordinates with the following syntax: *X<[angle from X axis],Z* When you need to define a point based on a previous point , you can enter *relative* cylindrical coordinate values with the @ prefix. For example, @5<30,3 specifies a point 5 units on the *XY* plane from the last point entered, at an angle of 30 degrees from the positive *X* direction, and extending 3units in the positive *Z* direction. --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/commandReferences/About%20Entering%203D%20Coordinates.html) · © Gstarsoft Co., Ltd.