How can I use datacursormode in app designer?

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Aldo Baits
Aldo Baits 2023-7-3
移动：Matt J 2024-8-1
function RunButton_2Pushed(app, event)
FU = scatteredInterpolant(app.resp(:,1),app.resp(:,2),app.resp(:,3),'natural','none');
FV = scatteredInterpolant(app.resp(:,1),app.resp(:,2),app.resp(:,4),'natural','none');
x1 = 0:app.spacing:app.sx;
y1 = 0:app.spacing:app.sy;
[xx,yy] = meshgrid(x1,y1);
uu = FU(xx,yy);
vv = FV(xx,yy);
usm = WSmooth(uu,app.smoothing);
vsm = WSmooth(vv,app.smoothing);
svec = [floor((app.sy)/app.spacing+1) ...
floor((app.sx)/app.spacing+1)];
upoly1 = usm;vpoly1 = vsm;
xx1 = xx;yy1 = yy;
[~,xh] = contourf(app.UIAxes3,xx,yy,usm,32);
colorrange = [min(usm(:)),max(usm(:))];
colormap(app.UIAxes3,'jet');
colorbar(app.UIAxes3,'eastoutside');
set(xh,'linecolor','none');
axis(app.UIAxes3,'equal');axis(app.UIAxes3,'tight');
disableDefaultInteractivity(app.UIAxes3);
datacursomode(app.UIAxes3,'on')
title(app.UIAxes3,{'Displacement-X [mm]';['Max(up) :',num2str(max(usm(:)),'%10.4f')...
' Max(lo) :', num2str(min(usm(:)),'%10.4f')];['Mean :',num2str(mean(usm(:)),'%10.4f')]});
end
I've tried to run my app, but I always had a problem in datacursormode line. It said that I use the wrong handler and I knew it, but I need to show my contour data and I need to be able to extract or read data in my contour. Tbh I don't have this problem if I do the same command but in matlab command not in app designer. Please help me because I need to make an app :). Thx
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Omnia
Omnia 2023-10-23
I have MATLAB R2023a. I have a matlab app with different UIAxes. I would like to assign different custom data cursor behavior for each UIAxes. However, when I try to use:
dcm1 = datacursormode(app.UIAxes1, 'on');
I get matlab error saying: Invalid figure handle. I don't understand what's the reason behind that specifically that it's supposed to be a valid new feature:
"datacursormode(ax,option) sets the data cursor mode for the specified axes. For example, to enable data cursor mode for the axes ax, use datacursormode(ax,'on'). Use this syntax with apps created in App Designer and using the uifigure function. (since R2023a)"
Xiaoyu
Xiaoyu 2024-8-1
移动：Matt J 2024-8-1
Hi :
Have you solved this problem? I'm having the same issue.

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回答（1 个）

Matt J
Matt J 2023-7-4
编辑：Matt J 2023-7-4
Yes, it's an unfortunate deficiency, and one of the main reasons I'm still using GUIDE. One workaround is to make an additional app button that lets you insert a text arrow (using annotation for example).

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