NISMR No.: LDY014:033
Monument Type: City Walls
Double Bastion occupies the south-west corner of the layout of the walls and, following removal of surrounding 19th-century housing in Nailor’s Row, is one of the most prominent parts of the monument and the site of one of the best known cannon known as ‘Roaring Meg’. The bastion is separated from the rampart walkway by a low stone plinth wall and, during the 19th century, was planted as a private garden.
All 3D models, videos and images of this cultural heritage object/site are the copyright of the Discovery Programme and can be licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
High Resolution Data
3D Capture Method: Terrestrial laser scanning (TLS)
3D Capture Description: Phase based terrestrial laser scanning using a Faro Focus 120 laser scanner. The instrument quotes the following specification:
- Distance accuracy up to ±2mm.
- Range from 0.6m up to 120m.
- Measurement rate up to 976,000 points/sec.
- Intensity & RGB. Integrated colour camera.
- Photorealistic 3D colour scans with up to 70 megapixels.
- Parallax-free colour overlay.
Laser scans geo-referenced using RTK GPS with VRSnow corrections
Data Processing Software
Processing of point cloud data: Faro Scene & Pointools
Meshing of data: Geomagic Studio 2012
3D Modelling & Texturing: Autodesk Mudbox, Mari, 3D Studio Max