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Annotation of OpenXM_contrib/gnuplot/docs/old/README.iso, Revision 1.1.1.1

1.1       maekawa     1:
                      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.
                     14:
                     15: Summary:
                     16:
                     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
                     19: evaluated):
                     20:
                     21:       |------ isosamples #1 -----|
                     22:
                     23:   -   *--------*--------*--------*
                     24:   |   |        |        |        |
                     25:       |        |        |        |
                     26:   i   |        |        |        |
                     27:   s   *--------*--------*--------*
                     28:   o   |        |        |        |
                     29:   s   |        |        |        |
                     30:   a   |        |        |        |
                     31:   m   *--------*--------*--------*
                     32:   p   |        |        |        |
                     33:   .   |        |        |        |
                     34:       |        |        |        |
                     35:   #   *--------*--------*--------*
                     36:   2   |        |        |        |
                     37:       |        |        |        |
                     38:   |   |        |        |        |
                     39:   -   *--------*--------*--------*
                     40:
                     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
                     43: this:
                     44:
                     45:       |------ isosamples #1 -----|
                     46:
                     47:   -   *--*--*--*--*--*--*--*--*--*   -
                     48:   |   |        |        |        |   |
                     49:       *        *        *        *   |
                     50:   i   |        |        |        |
                     51:   s   *--*--*--*--*--*--*--*--*--*   s
                     52:   o   |        |        |        |   a
                     53:   s   *        *        *        *   m
                     54:   a   |        |        |        |   p
                     55:   m   *--*--*--*--*--*--*--*--*--*   l
                     56:   p   |        |        |        |   e
                     57:   .   *        *        *        *   s
                     58:       |        |        |        |
                     59:   #   *--*--*--*--*--*--*--*--*--*   #
                     60:   2   |        |        |        |   2
                     61:       *        *        *        *
                     62:   |   |        |        |        |   |
                     63:   -   *--*--*--*--*--*--*--*--*--*   -
                     64:
                     65:       |------- samples #1 -------|
                     66:
                     67:
                     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.
                     72:
                     73: Best regards,
                     74:
                     75: Carsten