matlab

majiancumt

function q=mmhole(x,y,z,xlim,ylim)
' l, ]# }  B" y/ ^%MMHOLE Create Hole in 3D Graphics Data
# Z2 L" l5 r" x- L( b1 i% Z=MMHOLE(X,Y,Z,Xlim,Ylim) sets the data in Z to NaN
% corresponding to the limits in Xlim=[Xmin Xmax] and
3 _  {3 }! _9 H$ v( {8 g- |  {% Ylim=[Ymin Ymax]. If Xlim or Ylim are empty they are
% assumed to be [-inf inf].
: b1 E+ x% g, B6 z% X and Y can be plaid matrices, e.g., created by MESHGRID
  o7 k2 c; a' Y: O; q- p* H+ a- x2 R% or they can be vectors defining the x and y axes.
%
% Z=MMHOLE(Z,Clim,Rlim) creates the NaN hole based on the
. K# B, k: A8 ?% column index limits in Clim and the row index limits in Rlim
%
% Resulting data can be plotted using mesh or surf:
" q& m$ \# D% ^/ c% MESH(X,Y,Z) or SURF(X,Y,Z)
( C5 F7 Q/ u- B4 m7 l# X. a0 ~; g% This function automates the procedure described on
% page 249 of "Mastering MATLAB".
7 k6 z8 O( x& Q7 P; i+ Y/ }# B
% D.C. Hanselman, University of Maine, Orono ME,  04469
% 9/26/95
% Copyright (c) 1996 by Prentice-Hall, Inc.

if nargin==3