matlab

majiancumt

function q=mmhole(x,y,z,xlim,ylim)
%MMHOLE Create Hole in 3D Graphics Data
5 B3 w  {' \' k  U8 v% Z=MMHOLE(X,Y,Z,Xlim,Ylim) sets the data in Z to NaN
. M- u! @' P. \4 R% corresponding to the limits in Xlim=[Xmin Xmax] and
% Ylim=[Ymin Ymax]. If Xlim or Ylim are empty they are
4 ^  w4 ^2 \8 K4 H2 x5 S4 `% assumed to be [-inf inf].
% X and Y can be plaid matrices, e.g., created by MESHGRID
0 e6 c7 V7 K; H$ ?8 R* ]% or they can be vectors defining the x and y axes.
%
% Z=MMHOLE(Z,Clim,Rlim) creates the NaN hole based on the
% s. \  x! _8 E: b9 Y% column index limits in Clim and the row index limits in Rlim
%
, b, W7 b. z4 g4 O% Resulting data can be plotted using mesh or surf:
5 T) H* t& o) c- P% MESH(X,Y,Z) or SURF(X,Y,Z)
% This function automates the procedure described on
1 ]  B% ^+ U$ G' r( ]7 c) Z- U' m, W% page 249 of "Mastering MATLAB".

% D.C. Hanselman, University of Maine, Orono ME,  04469
% 9/26/95
2 R, \, p. N4 K0 O% Copyright (c) 1996 by Prentice-Hall, Inc.

3 X( R  U6 J! Lif nargin==3