Filter out marked data from XY graph (Draw graph)

[_EMG_]

Hi there,

I've a question about "filtering" data from an XY Graph, please see the attachement.

The graph shows some sample data (white plot) and a red "ballon" plot (you can press left mouse button

and move over the graph to draw the red plot).

My need is to get all samples inside the red ballon, but presently I got stuck with it!

Any Ideas?!

(The attached VI is saved by LabVIEW2009 version)

[falkpl]

To determine id a point is inside of the red baloon it must satisfy the condition where the X,Y is less than any X,Y point and greater than any other X,Y point.   To filter them out remove outliers from the array or set their values to nan to not plot them 

[AVR! · Accepted solution]

Look here: http://forums.ni.com/t5/LabVIEW/How-to-select-a-set-of-points-in-a-xy-graph-contained-in-an-area/m-p...