How to choose a set of points in a graph xy contained in a draw of the area with the cursor?

I use the tIhe XY graph to draw a Pointcare intervals RR (heartbeat) representation. I would like to use the mouse to draw a polygon around the points of interest and get their index in the original array. Thank you to me a strategy-oriented!

Olivier

It seems more difficult to describe in words than just after a simple example.  Simply click on the graphic to add sliders, drag them around as you wish and see the included points.  I used a 1-bit bitmap to detect the inner points and the draw several VI points for the polygon image.

I sort the points so that the polygon is filled completely, form then, sometimes you see pass all of a sudden.  Not a complete solution, but a good start.

Tags: NI Software

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