matlab

majiancumt

function q=mmhole(x,y,z,xlim,ylim)
* G- F0 T+ t: S( z& o# d# l%MMHOLE Create Hole in 3D Graphics Data
% Z=MMHOLE(X,Y,Z,Xlim,Ylim) sets the data in Z to NaN
' h6 e! Z, X' H/ f) @# i7 Q; O% corresponding to the limits in Xlim=[Xmin Xmax] and
! Z. X' R9 d$ N% Ylim=[Ymin Ymax]. If Xlim or Ylim are empty they are
% assumed to be [-inf inf].
9 F% P6 r& i) N7 h# ?5 U% X and Y can be plaid matrices, e.g., created by MESHGRID
% or they can be vectors defining the x and y axes.
8 f. y7 T* X$ O: f5 F! T%
% Z=MMHOLE(Z,Clim,Rlim) creates the NaN hole based on the
% column index limits in Clim and the row index limits in Rlim
* _- n$ D5 k( F3 ^! R9 w%
% Resulting data can be plotted using mesh or surf:
; n/ {4 q6 q. ^4 H, f8 I2 y% MESH(X,Y,Z) or SURF(X,Y,Z)
% This function automates the procedure described on
% page 249 of "Mastering MATLAB".

% D.C. Hanselman, University of Maine, Orono ME,  04469
3 I: |* i$ Z) c5 c  }, U: I% 9/26/95
+ T( s0 |3 [3 d1 e% Copyright (c) 1996 by Prentice-Hall, Inc.
0 G" ~, b$ B- n5 }/ \' y( R: P
if nargin==3