Here are the data structures with brief descriptions:

CBoxSP
CBoxSPM
CBoxST
CBoxSTM
CEllipsoid
CEllipsoidM
CLineSP
CLineSPM
CPeriod
CPeriodM
CPointENU
CPointENUM
CPointLL
CPointLLM
CPointPLH
CPointPLHM
CPointSP
CPointSPM
CPointST
CPointSTM
CPointXY
CPointXYM
CPointXYZ
CPointXYZM
CRangeSP
CRangeSPM
CRangeST
CRangeSTM
CRangeT
CRangeTM
CSegmentSP
CSegmentSPM
CSegmentST
CSegmentSTM
CTrajectory
CTrajectoryM
CVector2D
CVector2DM
CVector3D
CVector3DM