matlab

majiancumt

function q=mmhole(x,y,z,xlim,ylim)
/ q3 D8 e/ |- L* A%MMHOLE Create Hole in 3D Graphics Data
) m: W% y% Q( w5 R8 a2 ~% Z=MMHOLE(X,Y,Z,Xlim,Ylim) sets the data in Z to NaN
% corresponding to the limits in Xlim=[Xmin Xmax] and
, m$ c6 o3 M. s% Ylim=[Ymin Ymax]. If Xlim or Ylim are empty they are
" T, m! K- i- ]$ d. ^: _6 S% assumed to be [-inf inf].
% X and Y can be plaid matrices, e.g., created by MESHGRID
# B; h; E5 E6 l9 ?% or they can be vectors defining the x and y axes.
, z$ z) n! s1 G+ V$ t7 c) M%
) t; N0 L4 U6 Q( D4 m, S9 Z1 Q% Z=MMHOLE(Z,Clim,Rlim) creates the NaN hole based on the
! P" r9 d% G6 F5 R* B; \3 X1 Z2 M% column index limits in Clim and the row index limits in Rlim
%
% Resulting data can be plotted using mesh or surf:
% MESH(X,Y,Z) or SURF(X,Y,Z)
8 Y2 U& @) z# ?0 t. p$ p0 s" ^% Q% This function automates the procedure described on
% page 249 of "Mastering MATLAB".

% D.C. Hanselman, University of Maine, Orono ME,  04469
' O5 d0 l1 I0 S6 {0 x8 A) ~% 9/26/95
% Copyright (c) 1996 by Prentice-Hall, Inc.
" I5 z* }( m4 O& u) ?; l
2 o# P! `; X# p" P6 h- ^% p+ {if nargin==3