Description

DERRY CHURCHBASTION INTROnew

NISMR No.: LDY014:033

Monument Type: City Walls

It was from Church Bastion that King James II was fired upon as he approached the city on April 18th 1689, when the siege began in earnest. In the bastion you can see two demi-culverin cannon. Along the outer wall face is a small gateway, known as a ‘sallyport’. Tradition has it that this gateway was used during the siege leading into St Columb’s Cathedral.

Source: Derry~Londonderry: A guide to the historic city walls Northern Ireland Environment Agency.


Images

Perspective view 1 of Church Bastion, Derry City Walls Perspective view 2 of Church Bastion, Derry City Walls Perspective view 3 of Church Bastion, Derry City Walls Perspective view 4 of Church Bastion, Derry City Walls Front elevation of Church Bastion, Derry City Walls Rear elevation of Church Bastion, Derry City Walls Plan view of Church Bastion, Derry City Walls

 

Video


3D Model

 

Location

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).

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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..

church bastion

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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