matlab

majiancumt

function q=mmhole(x,y,z,xlim,ylim)
%MMHOLE Create Hole in 3D Graphics Data
% Z=MMHOLE(X,Y,Z,Xlim,Ylim) sets the data in Z to NaN
% corresponding to the limits in Xlim=[Xmin Xmax] and
! s$ O3 V+ \. B0 \3 h4 f8 E' y% Ylim=[Ymin Ymax]. If Xlim or Ylim are empty they are
# e$ ?- b, O/ W1 Z) R; ]% assumed to be [-inf inf].
% X and Y can be plaid matrices, e.g., created by MESHGRID
% or they can be vectors defining the x and y axes.
%
% Z=MMHOLE(Z,Clim,Rlim) creates the NaN hole based on the
7 r7 |2 U; f# @& {. X% column index limits in Clim and the row index limits in Rlim
%
0 a( G$ i  H* v5 Z- _8 q$ g% Resulting data can be plotted using mesh or surf:
% MESH(X,Y,Z) or SURF(X,Y,Z)
% This function automates the procedure described on
) `4 U. {+ f1 p% page 249 of "Mastering MATLAB".

% K# C4 l  v* D$ g2 V; l% D.C. Hanselman, University of Maine, Orono ME,  04469
3 M7 j: Z' h: l( P) f3 ]% 9/26/95
- T  E6 u/ A" P/ ]7 ^6 [% Copyright (c) 1996 by Prentice-Hall, Inc.
- u# V! z( I/ @$ O
if nargin==3