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hi,<br>
<br>
I can write filter with <u><b>vtkPolyDataAlgorithm</b></u><span
style=" color:#800080;"><u><b> </b></u></span><u><b>. </b></u>it
checks input and if it is changed it call RequestData().<br>
But what if I have another values that must be checked it it is
changed or not then if it changed refresh output.<br>
how can I implement checking for my own values<br>
<br>
Kind Regards.<br>
<br>
Ahmet Doğan<br>
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