[Retracted] 3D Stratum Interpolation Algorithm of Metro Tunnel Based on BIM and Data Fusion

Table 2

Various indicators of relative error of inclination angle of different methods.

Method	Maximum	Minimum	Sum	Mean	SD
TIN	262.4	2.01	1193.37	60.6365	72.048592
Higher-order surface function	58.33	4.88	488.15	26.1714	13.285446
Tension spline function	55.0156	1.04262	255.1642	13.19162	13.24285