how can i delete a quiver3 object

hi

to everyone I would like to ask you how do I remove these three quiver3 objects from my patch

surf=gca;
xlim(surf,[-30 +30]);
xlabel('x');
zlim(surf,[-30 +30]);
zlabel('z');
ylim(surf,[-30 +30]);
ylabel('y');
%regola in una modalità fissa la lunghezza dela singola unita degli assi  
daspect([1 1 1]);

S.Vertices=[];
S.Faces=[];
p=patch(S);
frame0=eye(4);
hold('on');
frame0V=ReferenceSystem(frame0);

function [q1,q2,q3]=ReferenceSystem(frame)

    q1 =quiver3(frame(1,4),frame(2,4),frame(3,4),frame(1,1),frame(2,1),frame(3,1), 'Color', 'r');
    q1.LineWidth=3;
    q1.AutoScaleFactor=8;
    q2 = quiver3(frame(1,4),frame(2,4),frame(3,4),frame(1,2),frame(2,2), frame(3,2), 'Color', 'g');
    q2.LineWidth=3;
    q2.AutoScaleFactor=8;
    q3 = quiver3(frame(1,4),frame(2,4),frame(3,4),frame(1,3),frame(2,3), frame(3,3), 'Color', 'b');
    q3.LineWidth=3;
    q3.AutoScaleFactor=10;

[Walter Roberson]

delete([q1, q2, q3])

?

[Andrea Gusmara]

unluckily Doesn't work.

Unrecognized function or variable 'q1'.

Answer 1

[Ameer Hamza]

Call the function with 3 output arguments to get the handle of the quiver objects.

[frame0Vq1,frame0Vq2,frame0Vq3]=ReferenceSystem(frame0);

and then delete it like this

delete([frame0Vq1,frame0Vq2,frame0Vq3])

[Andrea Gusmara]

thank you so much , now works correctly.