matlab

majiancumt

function q=mmhole(x,y,z,xlim,ylim)
2 W1 f4 @1 p/ Y: K7 E' L; B%MMHOLE Create Hole in 3D Graphics Data
% Z=MMHOLE(X,Y,Z,Xlim,Ylim) sets the data in Z to NaN
8 l5 ^/ h' y2 k1 v5 ~% corresponding to the limits in Xlim=[Xmin Xmax] and
% Ylim=[Ymin Ymax]. If Xlim or Ylim are empty they are
5 U" Q0 v1 x- \, y# v% assumed to be [-inf inf].
1 c! [" ?  h3 x7 x% X and Y can be plaid matrices, e.g., created by MESHGRID
/ d( @# F' m* r* Y* b- H% or they can be vectors defining the x and y axes.
3 }4 x, M8 n  y3 W+ o! v%
7 J, J( g) ^) u* Q% Z=MMHOLE(Z,Clim,Rlim) creates the NaN hole based on the
& [" M+ W7 ]6 W, g- d2 O+ Y% column index limits in Clim and the row index limits in Rlim
%
1 f: C; F( S) X: f% Resulting data can be plotted using mesh or surf:
8 |7 E; c  s" F$ `  N/ z1 V( f% MESH(X,Y,Z) or SURF(X,Y,Z)
% This function automates the procedure described on
8 b! t6 U' ]" A: a# @% page 249 of "Mastering MATLAB".

% D.C. Hanselman, University of Maine, Orono ME,  04469
; f, L2 F+ x- d, z- n3 V+ x+ `  F% 9/26/95
& |5 F, b. K" M: X, ]0 T: v% Copyright (c) 1996 by Prentice-Hall, Inc.
! i0 m/ v0 J" V& {3 N7 v
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