# User Spaces

VisionPro calibration and fixturing tools create user spaces that define any number of additional coordinate systems beyond the root space for an image. The tool you use determines it handedness and units, and determine how it is related to the root space.

The following figure shows a user space added to the root space of an acquired image.

In this case, the user space is a right-handed coordinate system with its origin positioned at the base of the "COGNEX" text. A single feature has different coordinate space locations depending on which space you are considering.

Each user space has a unique name that your application can use to determine which space VisionPro uses to report tool results. All of the user spaces associated with an image are stored in a coordinate space tree.