Open Science Research Excellence
@article{(International Science Index):,
  title    = {Characterizations of Star-Shaped, L-Convex, and Convex Polygons},
  author    = {Thomas Shermer and  Godfried T. Toussaint},
  country   = {},
  abstract  = {A chord of a simple polygon P is a line segment [xy]
that intersects the boundary of P only at both endpoints x and y. A
chord of P is called an interior chord provided the interior of [xy] lies
in the interior of P. P is weakly visible from [xy] if for every point v
in P there exists a point w in [xy] such that [vw] lies in P. In this
paper star-shaped, L-convex, and convex polygons are characterized
in terms of weak visibility properties from internal chords and starshaped
subsets of P. A new Krasnoselskii-type characterization of
isothetic star-shaped polygons is also presented.},
    journal   = {International Journal of Computer, Electrical, Automation, Control and Information Engineering},  volume    = {7},
  number    = {1},
  year      = {2013},
  pages     = {121 - 127},
  ee        = {},
  url       = {},
  bibsource = {},
  issn      = {eISSN:1307-6892},
  publisher = {World Academy of Science, Engineering and Technology},
  index     = {International Science Index 73, 2013},