Simulink scope autoscale

Hi everyone, i was wondering if there is a way for a scope i use in a simulink model to automaticaly autoscale. Maybe from adding a code to its startfunction???

 采纳的回答

Hi Raldi,
assuming the scope blocks are open, the following piece of code does the autoscaling for you:
% find all scope blocks as MATLAB figures:
set(0, 'showhiddenhandles', 'on')
scope = findobj(0, 'Tag', 'SIMULINK_SIMSCOPE_FIGURE');
for i=1:length(scope)
% this is the callback of the "autoscale" button:
simscope('ScopeBar', 'ActionIcon', 'Find', scope(i))
end
set(0, 'showhiddenhandles', 'off')
Titus

5 个评论

should i add this in the Stopfunction inside tho model or in the GUI?
i am asking because when i try to run it as an m file it sais
Error using Simulink.scopes.Util.SimpleSimStatus (line 2589)
Invalid Simulink object handle
Sorry my bad it is working!!! Thanks Titus...
Where did you implement this Raldi? I'm not sure how to use the code that Titus supplied. I tried adding it in a Matlab Function that runs in the Simulink model, but that didn't work
I also tried just running the code in Matlab afterwards and that did nothing. What did you do?
To make the autoscale function automatically i created a matlab function with the code above. The code will be executed each certain period of time. In my case 3 seconds, i did it with this function and the block clock of Simulink. the function that i have created is this one: -------- function u=scope(y) % find all scope blocks as MATLAB figures: u=0; z=mod(y,3)==0 if(z==1) set(0, 'showhiddenhandles', 'on') scope = findobj(0, 'Tag', 'SIMULINK_SIMSCOPE_FIGURE'); for i=1:length(scope) % this is the callback of the "autoscale" button: simscope('ScopeBar', 'ActionIcon', 'Find', scope(i)) end set(0, 'showhiddenhandles', 'off') end
end ----------- Then, in the clock block i selected 1000 as decimation and i use this code in a "interpreted Matlab function" block just writting "scope" in the label "Matlab function". I drive the output of this function to a scope but this output is not really interesting.
best regards

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更多回答(5 个)

Ilham Hardy
Ilham Hardy 2012-1-17

0 个投票

By clicking the binocular button on the scope, perhaps?

2 个评论

well i said automatically so this excludes clicking stuff :)
I did not find the binocular button too

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Add below piece of code in your 'StopFcn' callback function. When the simulation is completed, it will open and autoscale all the scopes in the model.
[EDITED TO WORK FOR MULTIPLE INPUT SCOPE]
bh=find_system(gcs,'FindAll','on','BlockType','Scope');
for x=1:length(bh) %close all scope
set_param(bh(x),'Open','off');
end
for x=1:length(bh)
set_param(bh(x),'Open','on');
fh=gcf;
AxesInScope = findall(fh,'type','axes');
for y=1:length(AxesInScope)
set(fh,'CurrentAxes',AxesInScope(y));
xlim('auto');
ylim('auto');
end
end

6 个评论

it doesnt seem to be working, where exactly should i insert this code. I have a gui that can interact with the model if that helps.
On your simulink model goto: File>>Model properties>>Callbacks>>StopFcn
You can insert this code in the 'StopFcn' callback function of model.
[1] Open Your Model
[2] Goto File -> Model Properties
[3] Click on callback Tab in Model Properties window
[4] Select 'StopFun' on left side of window
[5] Paste the above code in Text box.
The code will be executed when the simulation stops (after completion or using stop button).
Once simulation is stoped, all the scopes in model will be opened and autoscaled automatically.
Still, it wont autoscale it. It only opens a figure in the end of the simulation. Does it have any relevance that i am using a scope with two inputs?
What if i somehow used set Ymin = min(inout) Ymax = max(inout)... is this possible?
As your scope is reading 2 inputs, previous code was autoscaling only one graph keeping other as it is.
I have updated the code so that it can work for multiple input scopes.

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Andreas Goser
Andreas Goser 2012-1-18

0 个投票

Typically, when users describe this, they are happy with the Time Scope Block from DSP System Toolbox. Here is the link to the documentation.
Especially, as Raldi is working at a university in the field of Signal Processing, this product should be available. Note that previous versions used different names like Signal Processing Blockset or DSP Blockset.

4 个评论

Thank you Andrea but still the time scope is not what i exatly need, you see i have two main signals that need to be shown in the same scope.
Well, then you might need to write your own block (s-function).
Yeah i figured you might say that. The thing is that i am not sure how to do that.
i think there is another way, ill try to change its YLim throygh my gui and update it.

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Mingli ZHU
Mingli ZHU 2021-4-22
编辑:Mingli ZHU 2021-4-22

0 个投票

set(0, 'showhiddenhandles', 'on')
%current graphic object
scope=gcf;
%find Autoscale object
scale=findobj(gcf, 'Tag', 'uimgr.uisplittool_Autoscale');
%click this object
feval(get(scale,'Callback'),scale,[]);
%find PrintToFigure Menu
fig=findobj(gcf, 'Tag', 'uimgr.uimenu_PrintToFigure');
%Click this Menu
feval(get(fig,'Callback'),fig,[]);
set(0, 'showhiddenhandles', 'off')
This function:
simscope('ScopeBar', 'ActionIcon', 'Find', scope(i))
Doesn't seem to be supported anymore in MATLAB 2020b.
This seems to work:
allAxes = findall(gcf,'type','axes');
for x = 1:numel(allAxes)
axis(allAxes(x), 'auto y');
axis(allAxes(x), 'auto x');
end

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