delete drawn shape from image

hi,

I have drawn several ellipses using imellipse instruction on an image in a figure. when i choose one of those ellipses and wanna delete it using 'delete' key, it doesn't work. how can i do it? tnx

Answer 1

[Walter Roberson]

gco() should return the handle of the currently selected object. Selecting is just a matter of clicking (once) on the object. Recognizing the delete key would be done by setting KeyPressFcn callback for the figure: be sure to check the event data to be sure the proper key was pressed. It might also be a good idea to get() the Type of the current object and check it, so that you only delete the kind of objects you want.

[Himanshu Giria]

Thank you

[Himanshu Giria]

It worked

Answer 2

[Sean de Wolski]

H = imellipse(...);
delete(H);

[mary]

tnx for your reply,

but i have loaded an image in a figure, and drawn more than one ellipses on it.now a user should select one of them and after pressing delete key it must be deleted.

i don't know how to write the code of selecting and getting the input key by user.

tnx