一、不可见figure存图

1、

pic = figure(\'Visible\',\'off\');
set(pic,\'position\',[0 0 600 350]) % 如果手动拖放，则不需要这一行命令
set(pic, \'PaperPositionMode\', \'auto\') % Use screen size
plot( x,y,\'-r\',\'Linewidth\',1.5)
saveas(pic,\'weilitu\',\'png\');

 2、

saveas(pic,[\'history\wlt\\', datestr(datetime(\'now\'),\'yyyymmddHHMMSS.png\')])

二、控件界面存图

% zxy
new_f_handle=figure(\'visible\',\'off\'); %新建一个不可见的figure
new_axes=copyobj(handles.fig_wlt,new_f_handle); %axes1是GUI界面内要保存图线的Tag，将其copy到不可见的figure中
set(new_axes,\'Units\',\'normalized\',\'Position\',[0.1 0.1 0.8 0.8]);%将图线缩放
print(new_f_handle,\'-djpeg\',\'./weilitu.jpg\');
print(new_f_handle,\'-dpng\',\'./weilitu.png\');
print(new_f_handle,\'-dbmp\',\'./weilitu.bmp\');
% zxy