3.10 2D plotting

These functions perform plotting of 2D data. 2D means that data depend from 2 independent parameters like matrix f(x_i,y_j), i=1...n, j=1...m. There are several generally different types of data representations: simple mesh lines plot (Mesh), surface plot (Surf), surface plot by boxes (Boxs), surface plot by tiles (Tile), waterfall-like plot (Fall), belt plot (Belt), density plot (Dens), contour lines plot (Cont), solid contours plot (ContF) and its rotational figure (Axial). Cont, ContF and Axial functions have variants for automatic and manual selection of level values for contours. Also there are functions for plotting data grid lines according to the data format (Grid) 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 2D plot sample, for sample code and picture.