问题
Is there any equivalent command to the clearvars -except keepVariables which can be used in a simulink model to delete all blocks, ports and lines, except specified ones?
回答1:
This is one general way to do it, explained used the in-built example vdp
:
simulink;
name = 'vdp';
%// open system, pause just for displaying purposes
open_system(name);
% pause(3)
%// find system, specify blocks to keep
allblocks = find_system(name);
ToKeep = {'Out1';'Out2'};
%// add systemname to strings
ToKeep = strcat(repmat({[name '/']},numel(ToKeep),1), ToKeep);
%// Alternative, directly, so save one line:
ToKeep = {'vdp/Out1';'vdp/Out2'};
%// create mask
ToDelete = setdiff(allblocks,ToKeep);
%// filter out main system
ToDelete = setxor(ToDelete,name);
%// try-catch inside loop as in this example not everything is deletable
for ii = 1:numel(ToDelete)
try
delete_block(ToDelete{ii})
catch
disp('Some objects couldn''t be deleted')
end
end
If all objects are deletable you may use
cellfun(@(x) delete_block(x),ToDelete)
instead of the loop.
Regarding your comment:
Imagine you just want to keep all Scope
and Out
blocks. You need to find there names also by find_system
and gather them to a list:
%// what to keep
scopes = find_system(name,'BlockType','Scope')
outs = find_system(name,'BlockType','Outport')
%// gather blocks to keep
ToKeep = [scopes; outs];
%// create mask
ToDelete = setdiff(allblocks,ToKeep);
%// filter out main system
ToDelete = setxor(ToDelete,name);
来源:https://stackoverflow.com/questions/28083282/delete-all-blocks-except-specified-ones-in-simulink-model