<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div>Hello,</div><div><br></div><div>I have tried the VolumePicker.tcl and VolumePickerCrop.tcl example provided in the Examples part, but a strange error appeared: "invalid command name "vtkVolumePicker" while executing "vtkVolumePicker picker" -line 154. Actually is the line where the picker object is declared.</div><div><br></div><div>Any other example works, so I have made the wrapping Tcl part, but I don't know what is the problem with this class.</div><div><br></div><div>Can you please help me?</div><div><br></div><div>Thank you!</div></div></body></html>