Provided by: plplot-doc_5.10.0+dfsg2-0.1ubuntu2_all

**NAME**

plot3d- Plot 3-d surface plot

**SYNOPSIS**

plot3d(x,y,z,nx,ny,opt,side)

**DESCRIPTION**

Plots a three dimensional surface plot within the environment set up byplw3d(3plplot). The surface is defined by the two-dimensional arrayz[nx][ny], the pointz[i][j] being the value of the function at (x[i],y[j]). Note that the points in arraysxandydo not need to be equally spaced, but must be stored in ascending order. The parameteroptcontrols the way in which the surface is displayed. For further details see the PLplot documentation. The only difference betweenplmesh(3plplot) andplot3d(3plplot) is thatplmesh(3plplot) draws the bottom side of the surface, whileplot3d(3plplot) only draws the surface as viewed from the top. Redacted form:plot3d(x,y,z,opt,side)This function is used in examples 11,21.

**ARGUMENTS**

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 ofxvalues at which function is evaluated.ny(PLINT, input) Number ofyvalues at which function is evaluated.opt(PLINT, input) Determines the way in which the surface is represented:opt=DRAW_LINEX: Lines are drawn showingzas a function ofxfor each value ofy[j].opt=DRAW_LINEY: Lines are drawn showingzas a function ofyfor each value ofx[i].opt=DRAW_LINEXY: Network of lines is drawn connecting points at which function is defined.side(PLBOOL, input) Flag to indicate whether or not ``sides'' should be draw on the figure. Ifsideis true sides are drawn, otherwise no sides are drawn.

**AUTHORS**

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

**SEE** **ALSO**

PLplot documentation at http://plplot.sourceforge.net/documentation.php. February, 2016 PLOT3D(3plplot)