How to write a "text" object inside axes??

Question

Giovanni 2012-10-11

0
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https://ww2.mathworks.cn/matlabcentral/answers/50530-how-to-write-a-text-object-inside-axes

Hello Everybody,

I have a question I am trying creating an animation to display some results using a normal MATLAB script (no GUI is involved into this process).

I have created a main figure which has several Childern, bwtween them there are some axes objects where I reproduce running graphs, or keeping a logo o writing some parameters.

I have another axes object where I am showing some frames which I am reading from a video, and showing by using imshow().

As on the top of this images there is a part which I don´t wann show, I have decided to create a black rectangle object and position it onto this part of the axes element. I did it simply creating an object with the right size and position, associating to it my axes element as 'Parent'.

imshow(read(vobj,n), 'Parent', h(13));
rectangle('Parent', h(13), 'Position', [0 0 320 20], 'FaceColor', [0 0 0]);

At this point I would like to add some text over this rectangle, but I am stuck on an error. I just try to do the same and create a text object overlapped to this rectangle:

K>> a = text('Parent', h(13), 'Position','String', 'Test')
Index exceeds matrix dimensions.

Whateve I am doint, even if I just give the 'Parent' property as input, I always get this error. Does anyone have an idea how can I solve this problem?

I can add every other kind of object to this axes, it just doesn´t work with text.

Greetings, Giovanni.