<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear list<div class=""><br class=""></div><div class="">Is there a way to use a RepeatingTimer as in this example: <a href="https://www.vtk.org/Wiki/VTK/Examples/Python/Animation" class="">https://www.vtk.org/Wiki/VTK/Examples/Python/Animation</a> in which the loop for the animation (in the example the method execute()) can return output in each iteration that is used in the the next iteration? In other words, is there a way to use information that is calculated in one iteration for the next iteration? Sorry, I am not sure if the question is understandable.</div><div class=""><br class=""></div><div class="">best </div><div class="">Andreas</div><div class=""><br class=""></div><div class=""><br class=""></div></body></html>