Simulink.sdi.clearAllSubPlots

Clear plotted signals from all subplots in the Simulation Data Inspector

Description

example

Simulink.sdi.clearAllSubPlots clears plotted signals from all subplots in the Simulation Data Inspector, including any subplots with plotted data that are not visible in the current layout. Clearing plotted signals using the Simulink.sdi.clearAllSubPlots function does not delete data from the Simulation Data Inspector. To clear plotted signals and delete data from the Simulation Data Inspector, use the Simulink.sdi.clear function.

Examples

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You can programmatically clear plotted signals from all subplots in the Simulation Data Inspector. For example, clear plotted data at the start of a script that creates plots.

Simulink.sdi.clearAllSubPlots

This example demonstrates how to access the Simulink.sdi.Run object for a Simulation Data Inspector run created by logging signals. From the Simulink.sdi.Run object you can get Simulink.sdi.Signal objects that you can use to plot the data.

Create a Simulation Run and Access the Run Object

The sldemo_fuelsys model includes several signals that are marked for logging. To create a simulation run containing the logged data, simulate the model.

sim('ex_vdp');

The Simulation Data Inspector keeps track of runs by assigning each run created by simulation, importing data, or opening a session a unique numeric ID. To access the run object for the simulation just performed, use the Simulink.sdi.getAllRunIDs function and take the last run ID in the returned vector.

runIDs = Simulink.sdi.getAllRunIDs;
runID = runIDs(end);

Once you have the run ID for the run of interest, you can use the Simulink.sdi.getRun function to get the Simulink.sdi.Run object corresponding to the run. You can use the Run object to check metadata associated with the run, including the number of signals in the run.

vdpRun = Simulink.sdi.getRun(runID);

vdpRun.SignalCount
ans = int32
    2

Plot Data Using Signal Objects

Use the getSignalByIndex function to access signals of interest from the Run object, fuelRun.

signal1 = getSignalByIndex(vdpRun,1);
signal2 = getSignalByIndex(vdpRun,2);

Use the Simulink.sdi.setSubPlotLayout function to specify a 3-by-1 layout.

Simulink.sdi.setSubPlotLayout(2,1)

Before plotting the data, use the Simulink.sdi.clearAllSubPlots function to clear any data that is already plotted.

Simulink.sdi.clearAllSubPlots

Plot one signal on each subplot. To plot signals on the first subplot, you can set the checked property for the signal. To plot signals on subplots other than the first subplot, use the plotOnSubPlot function.

signal1.Checked = true;
plotOnSubPlot(signal2,2,1,true);

View the Plotted Data

To view the plots you just created, open the Simulation Data Inspector using the Simulink.sdi.view function.

Introduced in R2019b