點擊上方藍字和“好玩的matlab”一起玩耍吧
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whqxoyoixpe64029980649.jpg (135.07 KB, 下載次數(shù): 1)
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2024-11-27 05:41 上傳
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好玩的matlab
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+ b! L1 w# y. t; ]0 y' K% ^, {今天,遇到的問題是怎么樣將圖形的細節(jié)局部放大,小編查了許多資料,終于找到解決方法" x) s7 V" ~ w% B3 F, A3 A; h
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效果如下所示10 j& O; O1 p* f
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全部源碼如下2function enlarge(f1)% Example:% plot(1:100,randn(1,100),(1:300)/3,rand(1,300)), grid on,% enlarge;) g8 T% K( ~8 Q& @8 H6 }7 q
if (nargin == 0) f1 = gcf;endset(f1, ... 'WindowButtonDownFcn', @ButtonDownCallback, ... 'WindowButtonUpFcn', @ButtonUpCallback, ... 'WindowButtonMotionFcn', @ButtonMotionCallback, ... 'KeyPressFcn', @KeyPressCallback);return;
( T+ r, b* O3 ~) f! wfunction ButtonDownCallback(src,eventdata) f1 = src; a1 = get(f1,'CurrentAxes'); a2 = copyobj(a1,f1);: H, D" r2 h/ O% _! ?
set(f1, ... 'UserData',[f1,a1,a2], ... 'Pointer','fullcrosshair', ... 'CurrentAxes',a2); set(a2, ... 'UserData',[2,0.2], ... %magnification, frame size 'Color',get(a1,'Color'), ... 'Box','on'); xlabel(''); ylabel(''); zlabel(''); title(''); set(get(a2,'Children'), ... 'LineWidth', 2); set(a1, ... 'Color',get(a1,'Color')*0.95); set(f1, ... 'CurrentAxes',a1); ButtonMotionCallback(src);return;% W# I! Z2 w$ s) [
function ButtonUpCallback(src,eventdata) H = get(src,'UserData'); f1 = H(1); a1 = H(2); a2 = H(3); set(a1, ... 'Color',get(a2,'Color')); set(f1, ... 'UserData',[], ... 'Pointer','arrow', ... 'CurrentAxes',a1); if ~strcmp(get(f1,'SelectionType'),'alt'), delete(a2); endreturn;. Y* n5 P# _. Q" R
function ButtonMotionCallback(src,eventdata) H = get(src,'UserData'); if ~isempty(H) f1 = H(1); a1 = H(2); a2 = H(3); a2_param = get(a2,'UserData'); f_pos = get(f1,'Position'); a1_pos = get(a1,'Position'); [f_cp, a1_cp] = pointer2d(f1,a1); set(a2,'Position',[(f_cp./f_pos(3:4)) 0 0]+a2_param(2)*a1_pos(3)*[-1 -1 2 2]); a2_pos = get(a2,'Position'); set(a2,'XLim',a1_cp(1)+(1/a2_param(1))*(a2_pos(3)/a1_pos(3))*diff(get(a1,'XLim'))*[-0.5 0.5]); set(a2,'YLim',a1_cp(2)+(1/a2_param(1))*(a2_pos(4)/a1_pos(4))*diff(get(a1,'YLim'))*[-0.5 0.5]); endreturn;
5 Q# X9 Z5 ^& f5 ? w7 Afunction KeyPressCallback(src,eventdata) H = get(gcf,'UserData'); if ~isempty(H) f1 = H(1); a1 = H(2); a2 = H(3); a2_param = get(a2,'UserData'); if (strcmp(get(f1,'CurrentCharacter'),'+') | strcmp(get(f1,'CurrentCharacter'),'=')) a2_param(1) = a2_param(1)*1.2; elseif (strcmp(get(f1,'CurrentCharacter'),'-') | strcmp(get(f1,'CurrentCharacter'),'_')) a2_param(1) = a2_param(1)/1.2; elseif (strcmp(get(f1,'CurrentCharacter'),') | strcmp(get(f1,'CurrentCharacter'),',')) a2_param(2) = a2_param(2)/1.2; elseif (strcmp(get(f1,'CurrentCharacter'),'>') | strcmp(get(f1,'CurrentCharacter'),'.')) a2_param(2) = a2_param(2)*1.2; end; set(a2,'UserData',a2_param); ButtonMotionCallback(src); endreturn;8 Y% T. R5 m2 z& X! u) o3 N0 p* \& O9 h
function [fig_pointer_pos, axes_pointer_val] = pointer2d(fig_hndl,axes_hndl)if (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');fig_pos = get(fig_hndl,'Position');fig_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
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好玩的MATLAB好玩的matlab,為您推薦值得學(xué)習(xí)思考的推文!希望和大家共同進步! |