<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Hey all,<br><br>I want to program a filter - an algorithm - that acts only on the current selected nodes or cells in the screen. How can I get this information from the vtkInformationVector** inputVector, which is actually the input of any VTK filter ? <br><br>Thanks,<br>Rafael March.<br></td></tr></table><br>