3.11 3D plotting

These functions perform plotting of 3D data. 3D means that data depend from 3 independent parameters like matrix f(x_i,y_j,z_k), i=1...n, j=1...m, k=1...l. There are 5 generally different types of data representations: isosurface or surface of constant value (Surf3), density plot at slices (Dens3), contour lines plot at slices (Cont3), solid contours plot at slices (ContF3) and cloud-like plot (Cloud). Surf3, Cont3 and ContF3 functions have variants for automatic and manual selection of level values for surfaces/contours. Also there are functions for plotting data grid lines according to the data format (Grid3) for enhancing density or contour plots. Each type of plotting has similar interface. There are 2 kind of versions which handle the arrays of data and coordinates or only single data array. Parameters of color scheme are specified by the string argument. See section Color scheme. See section 3D plot sample, for sample code and picture.