方法一直接右键设置参考链接代码分为两个绘图代码与magnify.m绘图代码就是普通的绘图代码以下为例%https://zhuanlan.zhihu.com/p/655767542clc clear close all x0:pi/100:2*pi;y1sin(x);plot(x,y1,r-o);hold on y2sin(x)-0.05;y3sin(x)0.05;xlim([02*pi]);ylim([-1.51.5]);plot(x,y2,b-v);plot(x,y3,m-.);legend(线型1,线型2,线型3,Location,northeast)运行该m文件后运行magnify.mmagnify.m与绘图代码放在同一文件夹下magnify.m%https://zhuanlan.zhihu.com/p/655767542functionmagnify(f1)warning off %%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% / while button pressed to increase/decrease box size.% Hold Ctrl while clicking to leave magnification on figure.%% Example:% plot(1:100,randn(1,100),(1:300)/3,rand(1,300)), grid on,% magnify;% Rick Hindman - 7/29/04if(nargin0),f1gcf;end;set(f1,...WindowButtonDownFcn,ButtonDownCallback,...WindowButtonUpFcn,ButtonUpCallback,...WindowButtonMotionFcn,ButtonMotionCallback,...KeyPressFcn,KeyPressCallback);return;functionButtonDownCallback(src,eventdata)f1src;a1get(f1,CurrentAxes);a2copyobj(a1,f1);set(f1,...UserData,[f1,a1,a2],...Pointer,fullcrosshair,...CurrentAxes,a2);set(a2,...UserData,[2,0.2],...%magnification, frame sizeColor,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;functionButtonUpCallback(src,eventdata)Hget(src,UserData);f1H(1);a1H(2);a2H(3);set(a1,...Color,get(a2,Color));set(f1,...UserData,[],...Pointer,arrow,...CurrentAxes,a1);if~strcmp(get(f1,SelectionType),alt),delete(a2);end;return;functionButtonMotionCallback(src,eventdata)Hget(src,UserData);if~isempty(H)f1H(1);a1H(2);a2H(3);a2_paramget(a2,UserData);f_posget(f1,Position);a1_posget(a1,Position);[f_cp,a1_cp]pointer2d(f1,a1);set(a2,Position,[(f_cp./f_pos(3:4))00]a2_param(2)*a1_pos(3)*[-1-122]);a2_posget(a2,Position);set(a2,XLim,a1_cp(1)(1/a2_param(1))*(a2_pos(3)/a1_pos(3))*diff(get(a1,XLim))*[-0.50.5]);set(a2,YLim,a1_cp(2)(1/a2_param(1))*(a2_pos(4)/a1_pos(4))*diff(get(a1,YLim))*[-0.50.5]);end;return;functionKeyPressCallback(src,eventdata)Hget(gcf,UserData);if~isempty(H)f1H(1);a1H(2);a2H(3);a2_paramget(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);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(nargin0),fig_hndlgcf;axes_hndlgca;end;if(nargin1),axes_hndlget(fig_hndl,CurrentAxes);end;set(fig_hndl,Units,pixels);pointer_posget(0,PointerLocation);%pixels {0,0} lower leftfig_posget(fig_hndl,Position);%pixels {l,b,w,h}fig_pointer_pospointer_pos-fig_pos([1,2]);set(fig_hndl,CurrentPoint,fig_pointer_pos);if(isempty(axes_hndl)),axes_pointer_val[];elseif(nargout2),axes_pointer_lineget(axes_hndl,CurrentPoint);axes_pointer_valsum(axes_pointer_line)/2;end运行后直接在原figure框中右键需要放大的地方即可弹出子图此时按住邮件不放并按住Ctrl键和键/-键可放大/缩小子图方法二手动设置范围修改第二十九行、第三十行的范围即可clc clear close all%% 主图 x0:pi/100:2*pi;y1sin(x);plot(x,y1,r-o);hold on y2sin(x)-0.05;y3sin(x)0.05;xlim([02*pi]);ylim([-1.51.5]);plot(x,y2,b-v);plot(x,y3,m-.);legend(线型1,线型2,线型3,Location,northeast);%% 子图局部放大图 % 使用 axes(Position,...) 在主图内部创建子坐标轴% Position [left bottom width height]归一化单位 0~1axes(Position,[0.180.180.30.3]);box onplot(x,y1,r-o);hold onplot(x,y2,b-v);plot(x,y3,m-.);% 设置子图的显示范围局部放大区域%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%xlim([12]);ylim([0.71.1]);% 调整子图刻度字体大小使其更美观set(gca,FontSize,8);方法三直接在现有fig文件的基础上添加子图修改第7行的内容修改第14行、第15行的范围即可%% % 在已有 MATLAB .fig 文件上添加局部放大子图 (Inset)%% clear;clc;close all;%% ------------------- 用户设置区域 -------------------figFileuntitled.fig;% -- 修改为你的 fig 文件路径% inset 在图窗中的位置和大小 (归一化坐标 [left, bottom, width, height], 范围 0~1)% 图1 的 inset 大约在左下角可参考下面这个值insetPos[0.20,0.22,0.28,0.28];% inset 要显示的坐标范围 (根据你想放大的区域修改)insetXLim[1.0,2.0];% x 轴放大区间insetYLim[0.7,1.1];% y 轴放大区间% 是否保存新文件saveNewFigfalse;newFigNamefigure_with_inset.fig;%% --------------------------------------------------% 1. 打开 fig 文件hFigopenfig(figFile,reuse);set(hFig,Color,w);% 确保背景为白色% 2. 定位主坐标轴 (排除 colorbar、legend 等小面积 axes)allAxesfindobj(hFig,Type,axes);areaszeros(length(allAxes),1);fori1:length(allAxes)posget(allAxes(i),Position);areas(i)pos(3)*pos(4);% 用面积判断哪个是主图end[~,maxIdx]max(areas);axMainallAxes(maxIdx);% 3. 提取主图中所有线条对象按原始顺序倒序读取保证图层顺序一致hLinesfindobj(axMain,Type,line);ifisempty(hLines)error(未在主图中找到线条对象请检查 fig 文件。);end% 4. 创建 inset 坐标轴axInsetaxes(Parent,hFig,...Position,insetPos,...Box,on,...Layer,top,...Color,[111],...% 白色背景LineWidth,1,...FontSize,8,...XColor,k,YColor,k);hold(axInset,on);% 5. 在 inset 中按原样式重绘所有线条forilength(hLines):-1:1% 提取数据xDataget(hLines(i),XData);yDataget(hLines(i),YData);% 提取样式属性lineColorget(hLines(i),Color);lineStyleget(hLines(i),LineStyle);lineWidthget(hLines(i),LineWidth);markerget(hLines(i),Marker);markerSizeget(hLines(i),MarkerSize);markerEdgeget(hLines(i),MarkerEdgeColor);markerFaceget(hLines(i),MarkerFaceColor);% 绘制到 insetplplot(axInset,xData,yData,...Color,lineColor,...LineStyle,lineStyle,...LineWidth,lineWidth,...Marker,marker,...MarkerSize,markerSize);% 如果有设置 MarkerFaceColor同步过去ifischar(markerFace)~strcmp(markerFace,none)set(pl,MarkerFaceColor,markerFace);endend% 6. 设置 inset 的显示范围xlim(axInset,insetXLim);ylim(axInset,insetYLim);% 7. 添加网格与图1一致% grid(axInset, on);% 8. 将 inset 置于最上层防止被主图元素遮挡uistack(axInset,top);% 9. 可选保存ifsaveNewFigsavefig(hFig,newFigName);fprintf(已保存: %s\n,newFigName);end