Herein, the central line of a complex design route is
considered as a case study to investigate the generation principle of the threedimensional
(3D) engineering route in the Revit modeling space and analyze the accuracy of
route data generated using different modeling methods. Deterministic and random
accuracy verification methods are adopted to study the construction of the
Revit space curve based on Civil 3D and Dynamo software in the Autodesk
platform. The following research results are obtained. (1) In the process of
upgrading the twodimensional polyline of Revit, the
system automatically converts the polyline to a cubic (4th order) space curve
with a weight of one nonuniform rational Bspline, thus
realizing a smooth transition between adjacent unit polylines. (2) The BCAD method exhibits the largest range of accuracy errors, reaching
15 mm in the x direction. The
error interval of the BCAD and CS methods affected by the circular curve of the designed
longitudinal section is more concentrated in the z direction. (3) The pointbypoint fitting method with encrypted steps is used for fitting,
achieving good performance in the construction of Revit space curve. Moreover,
the modeling accuracy can meet the actual engineering requirements. These
results provide a reference for subsequent detailed modeling in Revit.
XU Litong
,
CUI Yanji
,
QI Xiangcheng
.
3D Engineering Route Construction Based on Autodesk
Platform and Its Accuracy Analysis
[J]. Tunnel Construction, 2021
, 41(6)
: 964
-971
.
DOI: 10.3973/j.issn.2096-4498.2021.06.008
