PLOT3DCL(3plplot) | PLplot API | PLOT3DCL(3plplot) |

# NAME¶

**plot3dcl** - Magnitude colored plot surface with contour for
z[x][y] with y index limits

# SYNOPSIS¶

**plot3dcl**(*x*, *y*, *z*, *nx*,
*ny*, *opt*, *clevel*, *nlevel*, *indexxmin*,
*indexxmax*, *indexymin*, *indexymax*)

# DESCRIPTION¶

When the implementation is completed this variant of
**plot3dc**(3plplot) (see that function's documentation for more details)
should be suitable for the case where the area of the *x*, *y*
coordinate grid where *z* is defined can be non-rectangular. The
implementation is incomplete so the last 4 parameters of plot3dcl;
*indexxmin*, *indexxmax*, *indexymin*, and *indexymax*;
are currently ignored and the functionality is otherwise identical to that
of **plot3dc**(3plplot).

Redacted form: General: **plot3dcl(x, y, z, opt, clevel,
indexxmin, indexymin, indexymax) **

This function is not used in any example.

# ARGUMENTS¶

*x*(**PLFLT_VECTOR**(3plplot), input)- A vector containing the x coordinates at which the function is evaluated.
*y*(**PLFLT_VECTOR**(3plplot), input)- A vector containing the y coordinates at which the function is evaluated.
*z*(**PLFLT_MATRIX**(3plplot), input)- A matrix containing function values to plot. Should have dimensions of
*nx*by*ny*. *nx*(**PLINT**(3plplot), input)- Number of
*x*values at which the function is evaluated. *ny*(**PLINT**(3plplot), input)- Number of
*y*values at which the function is evaluated. *opt*(**PLINT**(3plplot), 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 cmap1.*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*(**PLFLT_VECTOR**(3plplot), input)- A vector containing the contour levels.
*nlevel*(**PLINT**(3plplot), input)- Number of elements in the clevel vector.
*indexxmin*(**PLINT**(3plplot), input)- The index value (which must be ≥ 0) that corresponds to the first
*x*index where*z*is defined. *indexxmax*(**PLINT**(3plplot), input)- The index value (which must be ≤
*nx*) which corresponds (by convention) to one more than the last*x*index value where*z*is defined. *indexymin*(**PLINT_VECTOR**(3plplot), input)- A vector containing
*y*index values which all must be ≥ 0. These values are the first*y*index where*z*is defined for a particular*x*index in the range from*indexxmin*to*indexxmax - 1*. The dimension of*indexymin*is*indexxmax*. *indexymax*(**PLINT_VECTOR**(3plplot), input)- A vector containing
*y*index values which all must be ≤*ny*. These values correspond (by convention) to one more than the last*y*index where*z*is defined for a particular*x*index in the range from*indexxmin*to*indexxmax - 1*. The dimension of*indexymax*is*indexxmax*.

# AUTHORS¶

Many developers (who are credited at http://plplot.org/credits.php) have contributed to PLplot over its long history.

# SEE ALSO¶

PLplot documentation at http://plplot.org/documentation.php.

August, 2021 |