cla reset stops UIAxesButtonDown from working
5 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
Jason
el 23 de Mzo. de 2023
Comentada: Image Analyst
el 23 de Mzo. de 2023
Hello. I have a UIAxes that I plot on and I want to manually be able to add text where ever I click on the graph. I am using the following to do this UIAxesButtonDown(app, event) defined as:
ax=app.UIAxes;
%set(ax, 'hittest', 'off');
cursorPos = ax.CurrentPoint(1,1:2);
app.curX=(cursorPos(1)); % Current Mouse Coords defined as a public property
app.curY=(cursorPos(2)); % Current Mouse Coords defined as a public property
This works and indeed after I have plotted a graph Im able to place the text where I click on the graph. (see the function myAddText below)
However, if I clear the UIAxes by
Cla(ax,’reset’)
Then this is where it stops working. I have played about with hittest etc and still no luck.
If I use the following instead to clear the UIAxes, it all works again
ax=app.UIAxes;
b=ax.Children
n=numel(b)
for i=1:n
delete(b(i))
end
So my questions are:
1: What is it with cla 'reset' that stops it working and how can I correct it
2: Is my alternative way of clearing the UIAxes good for removing all graphics objects on the UIAxes so I actually don't need cla 'reset;
function myAddText(app)
ax=app.UIAxes;
x=app.curX;% SavedMouse Coords
y=app.curY; % SavedMouse Coords
txt=app.AddTitleEditField.Value;
txt=horzcat('\leftarrow',txt);
text(ax,x,y,txt,'Color',cl,'FontSize',12,'Interpreter', 'tex','HorizontalAlignment','left','VerticalAlignment','middle');
0 comentarios
Respuesta aceptada
Cameron
el 23 de Mzo. de 2023
cla(ax,'reset')
Resets the ButtonDownFcn callback. I haven't tested this out, but can you just use this:
myFun = ax.ButtonDownFcn;
cla(ax,'reset')
ax.ButtonDownFcn = myFun;
2 comentarios
Image Analyst
el 23 de Mzo. de 2023
If this Answer solves your original question, then could you please click the "Accept this answer" link to award the answerer with "reputation points" for their efforts in helping you? They'd appreciate it. Thanks in advance. 🙂 Note: you can only accept one answer (so pick the best one) but you can click the "Vote" icon for as many Answers as you want. Voting for an answer will also award reputation points.
Más respuestas (1)
Image Analyst
el 23 de Mzo. de 2023
If yoiu just want to clear the axes without disconnecting your callback function why not call cla without 'reset':
cla(app.UIAxes);
Ver también
Categorías
Más información sobre Graphics Object Programming en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!