The Artec EVA scanner is used to generate high resolution models of ogham stone surfaces with small scale detail. The Artec EVA uses structured light to record. A forensics tent is used to create a controlled lighting environment and ensure measurement can proceed regardless of the weather when used outdoors. Scanning is undertaken with the fastest speed setting (15 frames per second) and with a minimum 400 mm depth of field. The data is recorded with sufficient overlap between scans to ensure easy registration.
Post-processing is done in Artec Studio 9 software: individual scans are edited, aligned, before a final surface is generated using global registration, fusion, and a small objects filter algorithm. If required, a textured surface can also be created. The model is exported from Artec Studio 9 as an .obj file. For dissemination purposes a 3D pdf of the model is generated using Geomagic Studio 2012.
This website is best viewed with:
At the moment, 3D PDFs are only viewable with Adobe Acrobat Reader on Windows
However, we've successfully opened 3D PDFs with Adobe Acrobat Reader 9 on Linux using Wine 1.7
This website uses WebGL and X3DOM to display simplified versions of the 3D models
Windows WebGL is not enabled by default, to enable it
Linux it should work by default
Android not tested
FreeBSD not tested
Mac OS not tested
Note: If X3DOM doesn't detect WebGL, it switches to a Flash equivalent.
The OBJ files should be usable with any 3D modeling software.
The Ogham characters are available as part of the Unicode. Ogham was added to the Unicode Standard in September 1999 with the release of version 3.0. The spelling of the names given is a standardization dating to 1997, used in Unicode Standard and in Irish Standard 434:1999. The Unicode block for ogham is U+1680 - U+169F. (ref: Wikipedia)