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) F' R- `# H$ G* p7 `8 E3 O; ?%MMHOLE Create Hole in 3D Graphics Data& P8 n" b5 d. L$ X* J1 @4 Q% G8 y
% Z=MMHOLE(X,Y,Z,Xlim,Ylim) sets the data in Z to NaN ) B4 Y5 x7 [# m) F3 O, z: e, Q% corresponding to the limits in Xlim=[Xmin Xmax] and 5 h' t$ ]3 B$ v7 L7 i/ D* V% Ylim=[Ymin Ymax]. If Xlim or Ylim are empty they are * p8 D6 x: H5 Z: T: E2 X% assumed to be [-inf inf]. 1 z. @ C2 v; q* w. {% X and Y can be plaid matrices, e.g., created by MESHGRID ' G3 `) c) d7 ~* t- L% or they can be vectors defining the x and y axes.6 a" Q: P' t& M$ H+ |7 K3 I
% ( C9 s; B, v% C2 X; E0 m% P% Z=MMHOLE(Z,Clim,Rlim) creates the NaN hole based on the & l/ |! e- e. J+ r% column index limits in Clim and the row index limits in Rlim ; u/ C }2 g) z/ M# I% 9 B7 l; o4 @) S! t+ c% Resulting data can be plotted using mesh or surf: 4 t% q, F8 |& i% MESH(X,Y,Z) or SURF(X,Y,Z)) B! m5 e4 _; C W5 @" r2 R
% This function automates the procedure described on; V- D' r) f' }( D
% page 249 of "Mastering MATLAB".- O0 H+ F! R) X5 U2 z' ?. t5 C
+ |! P. m. e: D3 C- n8 [) t% D% D.C. Hanselman, University of Maine, Orono ME, 04469 4 {$ P9 ~3 R3 n6 k& B% 9/26/95) f: c8 H, V$ D* c' Y9 ?
% Copyright (c) 1996 by Prentice-Hall, Inc.0 c. f# T9 U D& @# [- J4 {) ]9 B