<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:12pt"><div>Hello,</div><div>I use vtk 5.6 and here's my problem. I do selection using a rubberBand. So, I get a list of selection. I use the union selection medthod (vtkSelection) but each time I make a selection on the same actor, a new selection node is created. So I have seen that union uses the EqualProperties. In this method, there an equality test on the vtkInformationIntegerKey PIXEL_COUNT().</div><div>But of course, when doing a selection by mouse, we could not have the same PIXEL_COUNT.</div><div><br></div><div>It works perfectly if we do point picking but with an area selection EqualProperties return false.</div><div><br></div><div>Is there a solution to this "problem" ?</div><div><br></div><div>Thank you.<br></div><div></div></div></body></html>