Extraction of Feature Information from Point Cloud of Large Volume Steel Truss Members

Table 9

Comparison of rod size information.

Projects	Theoretical size (m)	Measured size (m)	Error (mm)	Error (%)
Rod length	12.18	12.176	0.02	0.164
Outer profile size	1.3 × 1.42	1.298 × 1.415	2 × 5	0.505
Inner profile size	1.2 × 1.35	1.205 × 1.337	5 × 1.3	0.550
Hole center distance	0.1	0.099	1	1
Distance between hole center and corner point	0.16	0.157	3	1.875
Bolt hole radius	0.0167	0.01675	0.05	0.299