home *** CD-ROM | disk | FTP | other *** search
-
- You can say "set isosamples 30,40" now to get different isosampling
- rates for the first and second dummy variables (x,u resp. y,v). This
- will affect surface-plots in hidden3d- and nohidden3d-mode. It gets
- rid of the necessity of having to change samples in hidden3d-mode when
- you actually want to change the isosamples for the first dummy
- variable. For people that are lazy and for compatibility you can also
- type "set isosamples 30". This will set the value to 30 in both
- directions. For completeness I did the same with "samples". Thus you
- can say "set samples 50,100" to get different sampling rates for each
- dummy variable. This only affects surface-plots in nohidden3d-mode.
- Again, you still can say "set samples 50". This will set both sampling
- rates to 50. For 2d-plots the first value of samples is used.
-
- Summary:
-
- Suppose isosamples is set to 4,5 in hidden3d-mode. The grid evaluated
- for hidden3d-plots will look like this (* denotes points that get
- evaluated):
-
- |------ isosamples #1 -----|
-
- - *--------*--------*--------*
- | | | | |
- | | | |
- i | | | |
- s *--------*--------*--------*
- o | | | |
- s | | | |
- a | | | |
- m *--------*--------*--------*
- p | | | |
- . | | | |
- | | | |
- # *--------*--------*--------*
- 2 | | | |
- | | | |
- | | | | |
- - *--------*--------*--------*
-
- Suppose isosamples is set to 4,5 and samples to 10, 9 in
- nohidden3d-mode. The grid evaluated for hidden3d-plots will look like
- this:
-
- |------ isosamples #1 -----|
-
- - *--*--*--*--*--*--*--*--*--* -
- | | | | | |
- * * * * |
- i | | | |
- s *--*--*--*--*--*--*--*--*--* s
- o | | | | a
- s * * * * m
- a | | | | p
- m *--*--*--*--*--*--*--*--*--* l
- p | | | | e
- . * * * * s
- | | | |
- # *--*--*--*--*--*--*--*--*--* #
- 2 | | | | 2
- * * * *
- | | | | | |
- - *--*--*--*--*--*--*--*--*--* -
-
- |------- samples #1 -------|
-
-
- BTW: The examples above also show how the bottom grids will look like
- both in noparametric- and in parametric-mode. Thus you can get a rough
- idea of how the mapping from (u,v)-space to (x,y,z)-space works by
- drawing a bottom grid in parametric-mode.
-
- Best regards,
-
- Carsten
-