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Journal of Chinese
            Architecture and Urbanism                                         Virtual reconstruction of archaeological sites






























                                Figure 9. Four elevation views of the loess terrace (LT). Source: Drawings by the authors
                                                               several times in Recap. However, further plans involve the
                                                               digitization of the whole Maquetian spot site. Moreover,
                                                               when dealing with a substantial volume of point cloud
                                                               data, careful consideration and resolution of potential
                                                               issues will be essential.
                                                               4. Discussion

                                                               The method presented here enables the creation of a
                                                               digital twin. First, the outcome was the 3D reconstruction
                                                               model achieved by capturing imagery data, granting the
                                                               LT an immortal life in the virtual world. A foundational
                                                               exhibition, accessible both on a local computer and online,
                                                               was completed. Second, the utilization of ArcGIS was
            Figure 10. Attribute tree of pillars. Source: Drawing by the authors  proposed for the management of restoration reference
                                                               data and the analysis of the LT’s surrounding terrain,
            and VR experience using a VR headset, as depicted in   encompassing both modern and historical periods,
            Figure  12.  This presentation  includes  the surrounding   although this process is still undergoing verification. Third,
            environment, providing online visitors with an immersive   HBIM was used for the integration of the point cloud
            on-site experience in comparison to the 3D model   and pillars, with the expectation of creating a parametric
            reconstructed through photogrammetry.              management and restoration model.

            3.3. Integration of pillar and point cloud           In comparison to archaeological sites where stone
                                                               structures are preserved, this research demonstrates the
            Ideal parametric pillars were placed in Revit’s plan view,   feasibility and significance of 3D reconstruction through
            guided by the pillar hole marks identified in the point cloud.   photogrammetry in underground archaeological sites,
            Changes in other views were synchronized simultaneously.   where building remains made of wood are rarely found.
            The height of the pillars was manually set at 2 m, as the real   The 3D reconstruction model enriches practitioners’
            height is still unknown. The relationship between pillars   comprehension of the archaeological site, its architectural
            and the LT is clearly visualized in the 3D view, as illustrated   features, and layouts, particularly when combined with
            in Figure 13.                                      HBIM. This method proves advantageous for large-scale
              The noteworthy challenge is that the scale of this data   sites, providing individuals with the flexibility to navigate
            is not particularly extensive; importing the point cloud   the 3D reconstruction model freely, rather than being
            into Revit software can be achieved by reducing clarity   restricted to limited on-site views. In such cases, higher-


            Volume 6 Issue 1 (2024)                         10                       https://doi.org/10.36922/jcau.1735
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