matlab

majiancumt

function q=mmhole(x,y,z,xlim,ylim)
%MMHOLE Create Hole in 3D Graphics Data
6 q7 v& e6 [/ w" i' D( J% Z=MMHOLE(X,Y,Z,Xlim,Ylim) sets the data in Z to NaN
% corresponding to the limits in Xlim=[Xmin Xmax] and
% Ylim=[Ymin Ymax]. If Xlim or Ylim are empty they are
% assumed to be [-inf inf].
6 V+ [( ?  g) C! v4 |% X and Y can be plaid matrices, e.g., created by MESHGRID
% or they can be vectors defining the x and y axes.
/ M5 Y7 ?2 P- a( j8 i+ c%
% Z=MMHOLE(Z,Clim,Rlim) creates the NaN hole based on the
( ], `# d- X* p, e1 g# b& O% g( P7 K% column index limits in Clim and the row index limits in Rlim
  {! G/ T9 z- `' I2 C: G, F+ d0 P%
% Resulting data can be plotted using mesh or surf:
2 L3 v& c7 X, v6 t: L% MESH(X,Y,Z) or SURF(X,Y,Z)
% This function automates the procedure described on
% page 249 of "Mastering MATLAB".
/ t8 P0 A1 P$ z( r, o  T
% D.C. Hanselman, University of Maine, Orono ME,  04469
% 9/26/95
% Copyright (c) 1996 by Prentice-Hall, Inc.

  }' D8 X& t( q  O- w! H/ ]if nargin==3