matlab-magnify-源程序.doc

(完整版)matlab magnify 源程序% start of program function magnify(f1) magnify(f1)% Figure creates a magnification box when under the mouse position when a button is pressed。 Press +/ while% button pressed to increase/decrease magnification. Press /） | strcmp(get(f1，CurrentCharacter),。） a2_param（2） = a2_param（2)*1.2; end; set(a2，UserData,a2_param）； ButtonMotionCallback（src); end；return;% Included for completeness （usually in own file）function fig_pointer_pos, axes_pointer_val = pointer2d（fig_hndl,axes_hndl）%pointer2d（fig_hndl，axes_hndl)Returns the coordinates of the pointer (in pixels）in the desired figure (fig_hndl) and the coordinates% in the desired axis （axes coordinates）% Example： figure(1),% hold on, for i = 1:1000, figp，axp=pointer2d； plot（axp(1),axp（2），.，EraseMode，none); drawnow; end；% hold off Rick Hindman - 4/18/01if （nargin = 0), fig_hndl = gcf； axes_hndl = gca； end;if （nargin = 1）， axes_hndl = get(fig_hndl,CurrentAxes)； end；set(fig_hndl,Units，pixels)；pointer_pos = get（0，PointerLocation)；%pixels 0，0 lower leftfig_pos = get（fig_hndl,Position);pixels l,b，w,hfig_pointer_pos = pointer_pos fig_pos（1,2）；set(fig_hndl，CurrentPoint，fig_pointer_pos）;if （isempty(axes_hndl）)，axes_pointer_val = ;elseif (nargout = 2）,axes_pointer_line = get(axes_hndl,CurrentPoint);axes_pointer_val = sum（axes_pointer_line)/2;end；% end of program