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plottah

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An Erlang/LFE gnuplot process server

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plottah examples 3d-hidden.lfe
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examples/3d-hidden.lfe 

(defmodule 3d-hidden

  (export all))



;;; Original example:

;;; * https://gnuplot.sourceforge.net/demo_5.2/hidden.3.gnu

(defun opts ()

 #m(title "Hidden line removal of explicit surfaces"

    style "increment default"

    view "70, 45, 1, 1"

    samples "20, 20"

    isosamples "20, 20"

    hidden3d "back offset 1 trianglepattern 3 undefined 1 altdiagonal bentover"

    style "data lines"

    xrange "[ -3.00000 : 3.00000 ] noreverse nowriteback"

    x2range "[ * : * ] noreverse writeback"

    yrange "[ -3.00000 : 3.00000 ] noreverse nowriteback"

    y2range "[ * : * ] noreverse writeback"

    zrange "[ * : * ] noreverse writeback"

    cbrange "[ * : * ] noreverse writeback"

    rrange "[ * : * ] noreverse writeback"))



(defun eqn ()

  "sin(x*x + y*y) / (x*x + y*y)")