Description

DERRY BISHOPSGATE ISO INTRO NISMR No.: LDY014:033

Monument Type: City Walls

Bishop’s Gate was one of the four original entrances to the city. The current gate was erected in 1789 in commemoration of the 1689 siege. It was built in the style of a triumphal arch to celebrate the centenary of the ‘Shutting of the Gates’. The gate is constructed from buff ashlar sandstone and has a central semi-circular-arched vehicular opening flanked by two flat-arched pedestrian passages.

The architect was H.A. Baker, with the sculpted head keystones representing the River Foyle (external) and the River Boyne(internal) designed by Edward Smyth, who had sculptured the thirteen riverine heads on the Dublin Custom House in c.1784. On either side of the gate are steps giving access to the City Walls.

Images

Perspective view 1 of the front of Bishop's Gate, Derry City Walls Perspective view 2 of the front of Bishop's Gate, Derry City Walls Perspective view 1 of the rear of Bishop's Gate, Derry City Walls Perspective view 2 of the rear of Bishop's Gate, Derry City Walls Front elevation of Bishop's Gate, Derry City Walls Rear elevation of Bishop's Gate, Derry City Walls Plan view of Bishop's Gate, Derry City Walls

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3D Model

 

Location

Licensing

All 3D models, videos and images of this cultural heritage object/site are licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).

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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..

BISHOPSGATE PNT LNK

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

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DIscovery Programme Logo White Landscape IRISH

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Arts Heritage and the Gaeltacht