The PLplot Plotting Library: Programmer's Reference Manual
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### `plot3dc`: Magnitude colored plot surface with contour.

`plot3dc` (x, y, z, nx, ny, opt, clevel, nlevel);

Identical to `plot3d` but with extra functionalities: the surface mesh can be colored accordingly to the current z value being plotted, a contour plot can be drawn at the base XY plane, and a curtain can be drawn between the plotted function border and the base XY plane. The arguments are identical to `plmeshc`. The only difference between `plmeshc` and `plot3dc` is that `plmeshc` draws the botton side of the surface, while `plot3dc` only draws the surface as viewed from the top.

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`plot3d`: Plot 3-d surface plot | Up | `plparseopts`: Parse command-line arguments