标题: matlab [打印本页] 作者: majiancumt 时间: 2009-4-19 18:19 标题: matlab function q=mmhole(x,y,z,xlim,ylim)6 \9 ~5 U' w# }' W% P
%MMHOLE Create Hole in 3D Graphics Data; k, n% Z4 D% W6 h8 `* n
% Z=MMHOLE(X,Y,Z,Xlim,Ylim) sets the data in Z to NaN5 P1 h1 Q( ^' `5 G( l$ |1 e8 Y- b
% corresponding to the limits in Xlim=[Xmin Xmax] and ' y+ |0 w2 x% l A+ D% Ylim=[Ymin Ymax]. If Xlim or Ylim are empty they are" a* X- x+ s. ?( g! X: i! d5 e
% assumed to be [-inf inf].( h6 n+ _: _6 u& ^+ x- e% v6 ^
% X and Y can be plaid matrices, e.g., created by MESHGRID g- ~+ t! W- p$ ]& F* E
% or they can be vectors defining the x and y axes. # b* K5 b5 {4 V% M, Q1 P% 7 w1 A* V: [- @6 m/ u- Z% Z=MMHOLE(Z,Clim,Rlim) creates the NaN hole based on the ' l$ w j0 k7 @* x0 N: k' K" p1 j
% column index limits in Clim and the row index limits in Rlim * U/ v) _7 ?; z1 a) h3 i& Z6 n% 8 }: N2 y1 a/ `( B* T% Resulting data can be plotted using mesh or surf: : u" E0 ~, j; r, D' D% MESH(X,Y,Z) or SURF(X,Y,Z)3 t @: o. R8 V5 V& j# b F5 r
% This function automates the procedure described on ( P' W( F6 {$ s1 p% page 249 of "Mastering MATLAB". 3 b% N0 |- \$ |# U, |' E5 p 7 Y) O$ a, E) U+ V& j) ~+ o% D.C. Hanselman, University of Maine, Orono ME, 04469 : `# L1 R! {: H: N0 f+ n0 A9 U0 N* [ `% 9/26/95% z% e9 P9 @# p" \: t, |3 n7 b
% Copyright (c) 1996 by Prentice-Hall, Inc.2 R8 Z5 c6 @" X! i7 R& R f
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if nargin==3