See BP368 for whether ALL points can see all points.
Adjacent-numbered pages: BP383 BP384 BP385 BP386 BP387  *  BP389 BP390 BP391 BP392 BP393
nice, traditional
fill_shape_white_dot [smaller | same | bigger]
Jago Collins
Adjacent-numbered pages: BP849 BP850 BP851 BP852 BP853  *  BP855 BP856 BP857 BP858 BP859
left-finite, right-finite, left-full, right-full, finished, experimental, funny
nothing [same | bigger]zoom in left (nothing) | zoom in right (nothing)
Aaron David Fairbanks