matlab

majiancumt

function q=mmhole(x,y,z,xlim,ylim)
% y- T; H. |) j9 S# F%MMHOLE Create Hole in 3D Graphics Data
$ r& u  {) d4 u. F% Z=MMHOLE(X,Y,Z,Xlim,Ylim) sets the data in Z to NaN
( s' @/ S/ e. N! s% corresponding to the limits in Xlim=[Xmin Xmax] and
$ a+ Y1 R+ h% m8 n3 h% Ylim=[Ymin Ymax]. If Xlim or Ylim are empty they are
% 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.
%
6 f) n. G( j6 |. v* X; C) l& I% Z=MMHOLE(Z,Clim,Rlim) creates the NaN hole based on the
% column index limits in Clim and the row index limits in Rlim
+ Y3 B, V7 X3 a$ k  Z%
/ Z, G0 C: C; ]- X5 N" q$ a% Resulting data can be plotted using mesh or surf:
% MESH(X,Y,Z) or SURF(X,Y,Z)
. ~' n& W0 ]% w1 b* T; O% This function automates the procedure described on
% page 249 of "Mastering MATLAB".
* h' F" h( z0 q2 ^3 y. d
' k: k( j: ^  u/ u/ F, ]% D.C. Hanselman, University of Maine, Orono ME,  04469
3 U: }8 m. a7 x6 S2 \$ R$ o% 9/26/95
% Copyright (c) 1996 by Prentice-Hall, Inc.
( \$ O  r7 R3 ^
1 C5 }! C/ G9 ^7 ?3 F5 oif nargin==3