clear all
[X,Y] = meshgrid(-3:.0625:3);
Z = peaks(X,Y);%æ°æ®z
[x,y]=meshgrid(1:97);%举ä¾ä¾¿åæ
figure(1)
mesh(x,y,Z);
colorbar
xR=[10,50];%设置xèå´
yR=[40,50];%设置yèå´
z1=Z.*(x>=xR(1)&x<=xR(2))&(y>=yR(1)&y<=yR(2));%å设å®èå´æ°æ®éæ°èµå¼é»è¾æ°ç»
z2=Z;%è¦çåå§Zæ°å»ºåé
z2(z1(:)==1)=-5;%设å®èå´æ¹èè²
%åèå´å
æ°æ®éæ°èµå¼ç¨äºçè²æ°ç»
%ç±äºmeshå½æ°ç®¡é½è½ç¨åcolormapæè½æ¹åé¢è²å¿
须使ç¨colormap
%figure(1)colorbar读åé¢è²åºå¼çº¦ä¼°è®¡63ï¼1ï¼5åºçº¢é»åéèèè²
%è¦æ¹åé¢è²æç¨colormapè½ç¼è¾colormapä¾é»è²jetè¦èªç¼è¾
figure(2)
mesh(x,y,Z,z2);
colorbar
追é®ä½ è¿ä¸ªä¸å¯¹äºï¼ææ¯è¦æ¹ådata cursorä¸çXåYï¼ä¾å¦ææ³å°Xæ¹æaï¼Yæ¹æb.请çå¾~