delete

Delete annotation

Syntax

delete(a)

Description

delete(a) deletes the specified annotation.

Examples

Delete Annotation

This example shows how to delete an annotation in the vdp model programmatically.

Open the example. Then, open the vdp model.

open_system('vdp')

To get the handles for the annotations in the model, use the find_system function.

h = find_system(gcs,'FindAll','on','Type','annotation');

To identify the annotations, query the text inside the annotations.

get_param(h,'PlainText')

ans = 3x1 cell
    {'Copyright 2004-2022 The MathWorks, Inc.'}
    {'Van der Pol Equation'                   }
    {'x'' - µ(1-x^2) x' + x = 0'              }

To delete the title of the model, 'Van der Pol Equation', get the Simulink.Annotation object that corresponds to the second handle.

an = get_param(h(2),'Object');

Delete the annotation from the model.

delete(an)

Get the handles for the annotations in the model. Then, query the text inside the annotations.

h1 = find_system(gcs,'FindAll','on','Type','annotation');
get_param(h1,'PlainText')

ans = 2x1 cell
    {'Copyright 2004-2022 The MathWorks, Inc.'}
    {'x'' - µ(1-x^2) x' + x = 0'              }

The model no longer has an annotation with 'Van der Pol Equation' as text.

Input Arguments

a — Annotation

Simulink.Annotation object

Annotation, specified as a Simulink.Annotation object.

Version History

Introduced before R2006a