surf_test, a MATLAB program which calls surf() to demonstrate the display of a 3D surface or contour plot for data of the form Z=F(X,Y).
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
surf_test is available in a MATLAB version.
CONTOUR_GRADIENT, a MATLAB program which displays contours and gradient vectors for a function f(x,y).
CONTOUR_GRADIENT_3D, a MATLAB program which shows how contours and gradient vectors for a function f(x,y) can be displayed in a 3D plot.
LEVELS, a MATLAB library which makes a contour plot of a function Z=F(X,Y), choosing the contour levels using random sampling.
SHORELINE, a MATLAB program which tries to identify and triangulate the 2D domain over which some function f(x,y) is nonnegative.
TEST_INTERP_2D, a MATLAB library which defines test problems for interpolation of regular or scattered data z(x,y), depending on a 2D argument.
VORONOI_MOUNTAINS, a MATLAB program which makes a mountain plot of a Voronoi diagram, that is, a surface plot of the distance from each point to its nearest Voronoi generator.