Description
NISMR No.: LDY014:033
Monument Type: City Walls
This was one of the four original gates into the 17th-century city, although the structure we see here today was built in 1805. The River Foyle originally flowed up to the foot of the city walls here and ships that entered Lough Foyle moored close by for people and goods to be unloaded.
The present structure was built in the first decade of the 19th century of ashlar sandstone and has a single elliptical-arched opening.
Licensing
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
For access and reuse of the high resolution 3D survey data used to derive the online models, images and videos please contact This email address is being protected from spambots. You need JavaScript enabled to view it..
Technical Details
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
Description
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3D Model
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Licensing
Technical Details
