2 You can say "set isosamples 30,40" now to get different isosampling
3 rates for the first and second dummy variables (x,u resp. y,v). This
4 will affect surface-plots in hidden3d- and nohidden3d-mode. It gets
5 rid of the necessity of having to change samples in hidden3d-mode when
6 you actually want to change the isosamples for the first dummy
7 variable. For people that are lazy and for compatibility you can also
8 type "set isosamples 30". This will set the value to 30 in both
9 directions. For completeness I did the same with "samples". Thus you
10 can say "set samples 50,100" to get different sampling rates for each
11 dummy variable. This only affects surface-plots in nohidden3d-mode.
12 Again, you still can say "set samples 50". This will set both sampling
13 rates to 50. For 2d-plots the first value of samples is used.
17 Suppose isosamples is set to 4,5 in hidden3d-mode. The grid evaluated
18 for hidden3d-plots will look like this (* denotes points that get
21 |------ isosamples #1 -----|
23 - *--------*--------*--------*
27 s *--------*--------*--------*
31 m *--------*--------*--------*
35 # *--------*--------*--------*
39 - *--------*--------*--------*
41 Suppose isosamples is set to 4,5 and samples to 10, 9 in
42 nohidden3d-mode. The grid evaluated for hidden3d-plots will look like
45 |------ isosamples #1 -----|
47 - *--*--*--*--*--*--*--*--*--* -
51 s *--*--*--*--*--*--*--*--*--* s
55 m *--*--*--*--*--*--*--*--*--* l
59 # *--*--*--*--*--*--*--*--*--* #
63 - *--*--*--*--*--*--*--*--*--* -
65 |------- samples #1 -------|
68 BTW: The examples above also show how the bottom grids will look like
69 both in noparametric- and in parametric-mode. Thus you can get a rough
70 idea of how the mapping from (u,v)-space to (x,y,z)-space works by
71 drawing a bottom grid in parametric-mode.