Dr jake,
All the VGA sites are not working. Would you please redirect?
>From: Jake Desyllas <[log in to unmask]>
>Reply-To: Jake Desyllas <[log in to unmask]>
>To: [log in to unmask]
>Subject: Visibility Graph Analysis resources
>Date: Mon, 17 Apr 2000 10:46:15 +0100
>
>For those who are interested, here are some resources on Visibility Graph
>Analysis
>
>Alasdair has set up a website for VGA at UCL's VR Centre which can be found
>at http://www.vr.ucl.ac.uk/vga Sometimes the link is a bit flakey, so you
>may need to go to http://www.vr.ucl.ac.uk and follow the links to
>"Research" and "Visibility Graph Analysis". The best bibliographies that I
>have found so far are in the two papers by Turner et al. that can be found
>at the same site:
>http://www.vr.ucl.ac.uk/alasdair/publications/1999b.html (full paper is at
>http://www.vr.ucl.ac.uk/vga/isss.pdf)
>http://www.vr.ucl.ac.uk/alasdair/publications/2000a.html (the full paper
>used to be available on the web, now contact Alasdair for info)
>
>Examples of the output from Intelligent Space's multi-platform Java
>software for Visibility Graph Analysis, which is called "Fathom" , can be
>seen at http://www.intelligentspace.com (click on the "about intelligent
>space" section and the "office interaction" section).
>
>Ruth Conroy has put some examples of the output of a program called "Omni
>Vista" that she is using for her PhD research at
>http://www.ruth.conroy.net/images.htm including an interesting new measure
>called "Drift", which is a calculation of the distance between the view
>point of the isovist and its centre of gravity.
>
>The CASA Working Paper 5 (http://www.casa.ucl.ac.uk/tate.pdf) by Batty,
>Conroy et al. has more examples of visibility graph analysis applied to the
>Tate Gallery in London and some examples of Ruth's data on patterns of
>people moving in a VRML model of the Tate using a headset. The relationship
>between the two is striking.
>
>A report on the testing of the VR Centre's "Depthmap" VGA software on
>live projects that I wrote last year whilst working at the VR Centre can be
>found at http://www.vr.ucl.ac.uk/vga/report or if that doesn't work because
>the link is a bit flakey go to http://www.vr.ucl.ac.uk/ and follow the
>links to "Research" and "Visibility Graph Analysis" and then the "Using
>Visibility Graph Analysis" link.
>
>Information on "Depthmap", the current UCL software for VGA and its use in
>combination with a GIS platform can be found at
>http://www.vr.ucl.ac.uk/vga/IsovistGIS
>
>David O'Sullivan has been involved with the VGA work at the VR Centre but
>has also applied graph theory to the analysis of spatial systems using
>cellular automata, see http://www.casa.ucl.ac.uk/~david/gca.html
>
>Benedikt's own site contains references to software that he developed on a
>unix platform to analyse visual envelopes in buildings and landscapes and
>work he has done on software for using isovist analysis in commercial
>buildings.
>http://mather.ar.utexas.edu/center/benedikt_cv.html
>
>The Spatialist software at Georgia Tech can apparently also be used to
>calculate isovists, but I'm not sure whether the graph matrix is saved or
>what graph measures are implemented. See
>http://murmur.arch.gatech.edu/~spatial/what_iso.htm
>
>Information about a Mac based program that calculates isovists can be found
>at http://wallstreet.colorado.edu/pastproj/isovist/isovist.html
>
>Has anyone else got any interesting links?
>
>Jake
>
>
>----------------------------------------------------------------------------
>Dr. Jake Desyllas
>Partner
>Intelligent Space
>1 Torriano Mews
>London NW5 2RZ
>phone: 020 7267 7392
>fax: 020 7428 0782
>email [log in to unmask]
>http://www.intelligentspace.com
>
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