1 # A generic rotation routine for the gnuplot view. In the commands
2 # that load this file, the following should be defined:
4 # iteration_count: set iteration_count=0
6 # limit_iterations: if set to a nonzero value, it'll stop after that
7 # many iterations; if zero value, continues indefinitely
9 # xrot: the initial x rotation of the view
11 # xrot_delta: the amount to increment the x rotation for each new plot
13 # xview: function for generating x view value; for example
14 # xview(xrot)=(50.+30.*sin((xrot%180)/180.*pi))
16 # zrot: the initial z rotation of the view
18 # zrot_delta: the amount to increment the z rotation for each new plot
20 # zview: function for generating z view value; for example
21 # zview(zrot)=(60.+45.*sin(zrot/180.*pi))
24 # - 1. 1. 2006 Dan Sebald: Made more generic so other demos could use
25 # - ?. ?. ? Hans-Bernhard Broeker: Used to just turn round and round
26 # by somewhat large steps. Now, it tumbles back and forth
28 # - ?. ?. ? ?: Initial recursive script
30 iteration_count=iteration_count+1
31 if ((!limit_iterations) || (iteration_count<=limit_iterations)) \
32 set view xview(xrot),zview(zrot); \
34 zrot=(zrot+zrot_delta)%360; \
35 xrot=(xrot+xrot_delta)%360; \