@brief Get the Piston linear position (i.e. the piston's extension)
When the axis is set, the current position of the attached bodies is examined and that position will be the zero position. @ingroup joints
See Implementation
@brief Get the Piston linear position (i.e. the piston's extension)
When the axis is set, the current position of the attached bodies is examined and that position will be the zero position. @ingroup joints