bdclose

Close any or all Simulink model windows unconditionally

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Syntax

bdclose
bdclose(sys)
bdclose('all')

Description

bdclose closes the current model window unconditionally and without confirmation. Any changes made to the model since it was last saved are lost. To find out the current model, use gcs. If a model was only loaded, the bdclose function clears the model from memory.

Tip

When you close a model with the bdclose function, the model is no longer loaded. To close a model but keep the model loaded, use this command instead, where model is the handle or name of the model.

set_param(model,Open="off")
To unload the model after running this command, you can use the bdclose or close_system function.

bdclose(sys) closes the specified model window, discarding all changes.

example

bdclose('all') closes all open model windows, discarding all changes.

Examples

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Open Live Script

Open the example. Then, open the vdp model.

open_system('vdp')

The bdclose function closes models even when they have unsaved changes. Make a change to the model.

set_param('vdp/Constant','Value','4')

Close the vdp model.

bdclose('vdp');
Open Live Script

Open the example. Then, load the vdp and f14 models.

h1=load_system('vdp');
h2=load_system('f14');

Open the vdp and f14 models.

open_system([h1, h2])

The bdclose function closes models even when they have unsaved changes. Make a change to the vdp model.

set_param('vdp/Constant','Value','4')

Close the vdp and f14 models. Specify the model to close as a matrix of handles.

bdclose([h1,h2])

In the bdclose function arguments, you can also specify the models to close as a cell array of character vectors.

Open the vdp and f14 models again.

open_system({'vdp','f14'})

Close the vdp and f14 models. Specify the model to close as a cell array of character vectors.

bdclose({'vdp','f14'})
Open Live Script

Open the example. Then, load the vdp model.

load_system('vdp')

Check whether the vdp model is loaded.

bdIsLoaded('vdp')
ans = logical
   1

The function returns a logical scalar, 1, which indicates that the model is loaded.

The bdclose function clears models from memory even when they have unsaved changes. Make a change to the model.

set_param('vdp/Constant','Value','4')

Check whether the model is dirty.

bdIsDirty('vdp')
ans = logical
   1

The function returns a logical scalar, 1, which indicates that the model is dirty.

Open Live Script

Open the example. Then, load the vdp and f14 models.

h1=load_system('vdp')
h1 = 
153.0015

h2=load_system('f14')
h2 = 
360.0037

Clear the vdp and f14 models from memory. Specify the models to clear as a matrix of handles.

bdclose([h1,h2])

Check whether the vdp and f14 models are loaded.

bdIsLoaded({'vdp','f14'})
ans = 1×2 logical array

   0   0

The function returns the logical array [0 0], which indicates that both models are not loaded. The models are cleared from memory.

In the bdclose function arguments, you can also specify the models to clear using a cell array of character vectors.

Load the vdp and f14 models again.

load_system('vdp')
load_system('f14')

Clear the vdp and f14 models from memory. Specify the models to clear as a cell array of character vectors.

bdclose({'vdp','f14'})

Check whether the vdp and f14 models are loaded.

bdIsLoaded({'vdp','f14'})
ans = 1×2 logical array

   0   0

The function returns [0 0], which indicates that both models are not loaded.

Input Arguments

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Model to close, specified as a character vector, string scalar, or cell array. To specify multiple models to close, specify a cell array of model names.

Example: bdclose("myModel")

Example: bdclose({'myModel1','myModel2'})

Data Types: char | string | cell

Version History

Introduced before R2006a

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See Also

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