Isovist

For the radiocontrast agent, see Iotrolan.
The pale blue area is the point isovist that can be seen from the centre of the circle.

In geometry, an isovist is the volume of space visible from a given point in space, together with a specification of the location of that point. It is a geometric concept coined by Clifford Tandy in 1967 and further refined by the architect Michael Benedikt.[1][2]

Isovists are naturally three-dimensional, but they may also be studied in two dimensions: either in horizontal section ("plan") or in other vertical sections through the three-dimensional isovist. Every point in physical space has an isovist associated with it.

  1. ^ Harris, Laurence R.; Jenkin, Michael R. M. (2011). Vision in 3D Environments. Cambridge, UK: Cambridge University Press. p. 311. ISBN 978-1-107-00175-6.
  2. ^ Wagman, Jeffrey B.; Blau, Julia J. C. (2020). Perception as Information Detection: Reflections on Gibson's Ecological Approach to Visual Perception. New York: Routledge. p. 85. ISBN 9780367312954.