| check_Tube_Legality | Check the Legality of an Elliptical Tube (ETRep) | 
| colon3D | Data | 
| create_Elliptical_Tube | Create a Discrete Elliptical Tube (ETRep) | 
| elliptical_Tube_Euclideanization | Convert an ETRep to a Matrix in the Convex Transformed Space. | 
| intrinsic_Distance_Between2tubes | Calculating the intrinsic distance between two ETReps | 
| intrinsic_mean_tube | Calculate Intrinsic Mean of ETReps | 
| intrinsic_Transformation_Elliptical_Tubes | Intrinsic Transformation Between Two ETReps | 
| nonIntrinsic_Distance_Between2tubes | Calculating the non-intrinsic distance between two ETReps | 
| nonIntrinsic_mean_tube | Compute Non-Intrinsic Mean of ETReps | 
| nonIntrinsic_Transformation_Elliptical_Tubes | Non-Intrinsic Transformation Between Two ETReps | 
| plot_Elliptical_Tube | Plot an Elliptical Tube (ETRep) | 
| simulatedColons | Data | 
| simulate_etube | Simulate Random Elliptical Tubes (ETReps) | 
| tube_A | Data | 
| tube_B | Data | 
| tube_Surface_Mesh | Create surface mesh of a tube |