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plmeshc - Magnitude colored plot surface mesh with contour
plmeshc(x, y, z, nx, ny, opt, clevel, nlevel)
A more powerful form of plmesh(3plplot): 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. Redacted form: plmeshc(x, y, z, opt, clevel) This function is used in example 11.
x (const PLFLT *, input) Pointer to set of x coordinate values at which the function is evaluated. y (const PLFLT *, input) Pointer to set of y coordinate values at which the function is evaluated. z (const PLFLT * const *, input) Pointer to a vectored two-dimensional array with set of function values. nx (PLINT, input) Number of x values at which function is evaluated. ny (PLINT, input) Number of y values at which function is evaluated. opt (PLINT, input) Determines the way in which the surface is represented. To specify more than one option just add the options, e.g. DRAW_LINEXY + MAG_COLOR opt=DRAW_LINEX: Lines are drawn showing z as a function of x for each value of y[j]. opt=DRAW_LINEY: Lines are drawn showing z as a function of y for each value of x[i]. opt=DRAW_LINEXY: Network of lines is drawn connecting points at which function is defined. opt=MAG_COLOR: Each line in the mesh is colored according to the z value being plotted. The color is used from the current color map 1. opt=BASE_CONT: A contour plot is drawn at the base XY plane using parameters nlevel and clevel. opt=DRAW_SIDES: draws a curtain between the base XY plane and the borders of the plotted function. clevel (const PLFLT *, input) Pointer to the array that defines the contour level spacing. nlevel (PLINT, input) Number of elements in the clevel array.
Many developers (who are credited at http://plplot.sourceforge.net/credits.php) have contributed to PLplot over its long history.
PLplot documentation at http://plplot.sourceforge.net/documentation.php. February, 2016 PLMESHC(3plplot)