2 # $Id: hidden.dem,v 1.7 2003/10/28 05:35:54 sfeam Exp $
8 set title "Hidden line removal of explicit surfaces"
13 splot 1 / (x*x + y*y + 1)
14 pause -1 "Hit return to continue (1)"
18 splot x*y / (x**2 + y**2 + 0.1)
19 pause -1 "Hit return to continue (2)"
25 splot sin(x*x + y*y) / (x*x + y*y)
26 pause -1 "Hit return to continue (3)"
36 pause -1 "Hit return to continue (4)"
44 pause -1 "Hit return to continue (5)"
48 # autoranging loses the verticals
51 splot "glass.dat" using 1
52 pause -1 "Hit return to continue (6)"
57 pause -1 "Hit return to continue (7)"