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- h0=figure('toolbar','none', 'position',[198 56 408 468], 'name','实例4');
- h1=axes('parent',h0, 'position',[0.15 0.45 0.7 0.5], 'visible','on');
- e1=uicontrol('parent',h0, 'style','edit', 'string',1, 'position',[50 120 50 20]);
- t1=uicontrol('parent',h0, 'style','text', 'string','X轴最小值', 'position',[35 150 80 20]);
- e2=uicontrol('parent',h0, 'style','edit', 'string',5, 'position',[50 60 50 20]);
- t2=uicontrol('parent',h0, 'style','text', 'string','X轴最大值', 'position',[35 90 80 20]);
- e3=uicontrol('parent',h0, 'style','edit', 'string',1, 'position',[150 120 50 20]);
- t3=uicontrol('parent',h0, 'style','text', 'string','Y轴最小值', 'position',[135 150 80 20]);
- e4=uicontrol('parent',h0, 'style','edit', 'string',5, 'position',[150 60 50 20]);
- t4=uicontrol('parent',h0, 'style','text', 'string','Y轴最大值', 'position',[135 90 80 20]);
- e5=uicontrol('parent',h0, 'style','edit', 'string',20, 'position',[250 120 50 20]);
- t5=uicontrol('parent',h0, 'style','text', 'horizontalalignment','left', 'string','点数', 'position',[250 150 30 20]);
- b1=uicontrol('parent',h0, 'style','pushbutton', 'string','绘图', 'position',[250 60 60 40], ...
- 'callback',[ 'a=str2num(get(e1,''string'')); b=str2num(get(e2,''string''));,',...
- 'c=str2num(get(e3,''string'')); d=str2num(get(e4,''string'')); n=str2num(get(e5,''string''));,',...
- 'xgrid=linspace(-abs(a),abs(a),n); ygrid=linspace(-abs(b),abs(b),n);',...
- '[x,y]=meshgrid(xgrid,ygrid); z=c*sqrt(d-y.*y/b/b-x.*x/a/a); u=1; z1=real(z);', ...
- 'for k=2:n-1, for j=2:n-1, if imag(z(k,j))~=0, z1(k,j)=0; end;',...
- 'if all(imag(z([k-1:k+1],[j-1:j+1])))~=0, z1(k,j)=nan; end; end; end;',...
- 'surf(x,y,z1); hold on, if u==1, z2=-z1; surf(x,y,z2),',...
- 'axis([-abs(a),abs(a),-abs(b),abs(b),-abs(c),abs(c)]); end;',...
- 'xlabel(''x''); ylabel(''y''); zlabel(''z''); hold off']);
- b2=uicontrol('parent',h0, 'style','pushbutton', 'string','关闭', 'position',[150 10 60 20], 'callback','close');
复制代码
[ 本帖最后由 ChaChing 于 2009-12-28 14:45 编辑 ] |