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Select with the cursor in a plot the interval boundaries

Asked by Tom Bedkowski on 1 Aug 2019
Latest activity Answered by Tom Bedkowski on 6 Aug 2019
Hello,
is there any opportunity to choose with the cursor in a plot points to define variables.
I want to select with two cursor klicks on a plotted signal an interval for further analysis.
Thank you for help!

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2 Answers

Answer by Samatha Aleti on 5 Aug 2019

You can select the points on the plot and save it to workspace with a variable name. One of the ways to do this is to select “Data Tips” option, then select the data points to be saved. Now right click anywhere on the figure and select “Export Cursor Data to Workspace” and give a variable name.
Data Tips >> select data points >> right click >> Export Cursor Data to Workspace
To add data points to existing variable, right click and select “Create New Data Tip” then repeat above process.
Refer the figures attached for better understanding.

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Thank you it works but i need an other solution for my problem.
Like this ...
datacursormode on;
dcm_obj = datacursormode(H);
pause
[c_info] = getCursorInfo(dcm_obj);
index1=c_info(1,1).DataIndex;
index2=c_info(1,2).DataIndex;
posi1=c_info(1,1).Position;
posi2=c_info(1,2).Position;
But it is a little bit unconfortable to set the points, which informations i want to know.
Is there any other solution for this problem.
Maybe with a rectangular which i stretch over my signalplot.

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Answer by Tom Bedkowski on 6 Aug 2019

I got it what i want.
xdata = 1:10;
ydata = rand(1,10);
plot(xdata, ydata)
[x, y] = ginput(2)
inpolygon(xdata, ydata, x([1 2 2 1]), y([1 1 2 2]))

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