<div dir="ltr"><div class="markdown-here-wrapper" style="font-family:"Lucida Sans",Cantarell,Verdana,sans-serif;color:rgb(11,83,148)"><p style="margin:0px 0px 1.2em!important">Hi Panos, </p>
<p style="margin:0px 0px 1.2em!important">I am not sure why you’d see a slowdown just for the first viewer’s <code style="font-size:0.95em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(218,218,218);background-color:rgb(232,232,232);border-radius:3px;display:inline">SetInputData</code>.  Perhaps make a small example with no Qt and just one viewer and try to reproduce the issue.</p>
<div title="MDH:SGkgUGFub3MswqA8ZGl2Pjxicj48L2Rpdj48ZGl2PkkgYW0gbm90IHN1cmUgd2h5IHlvdSdkIHNl
ZSBhIHNsb3dkb3duIGp1c3QgZm9yIHRoZSBmaXJzdCB2aWV3ZXIncyBgU2V0SW5wdXREYXRhYC4m
bmJzcDsgUGVyaGFwcyBtYWtlIGEgc21hbGwgZXhhbXBsZSB3aXRoIG5vIFF0IGFuZCBqdXN0IG9u
ZSB2aWV3ZXIgYW5kIHRyeSB0byByZXByb2R1Y2UgdGhlIGlzc3VlLjwvZGl2Pg==" style="height:0;width:0;max-height:0;max-width:0;overflow:hidden;font-size:0em;padding:0;margin:0">​</div></div></div><br><div class="gmail_quote"><div dir="ltr">On Mon, Feb 12, 2018 at 8:50 AM ochampao <<a href="mailto:ochampao@hotmail.com">ochampao@hotmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Just to give some more background...<br>
<br>
I have a class which on construction sets-up 3 "empty" (no image loaded)<br>
vtkResliceImageViewer objects and attaches them to their respective<br>
QVTKOpenGLWidget objects. Then, when the user selects a folder where the<br>
DICOM series is located,  the addImage() function is called that executes<br>
the series of steps listed in my previous posts to load the volume.<br>
<br>
<br>
<br>
<br>
<br>
<br>
--<br>
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</blockquote></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div class="inbox-inbox-inbox-inbox-inbox-inbox-inbox-markdown-here-wrapper" style="font-family:"proza libre",sans-serif;color:rgb(0,56,107)"><h5 id="inbox-inbox-inbox-inbox-inbox-inbox-inbox-sankhesh-jhaveri" style="margin:1.3em 0px 1em;padding:0px;font-size:1.1em;border-bottom-width:1px;border-bottom-style:solid;border-bottom-color:rgb(238,238,238);font-weight:bold;color:rgb(11,65,148)">Sankhesh Jhaveri</h5>
<h6 id="inbox-inbox-inbox-inbox-inbox-inbox-inbox--sr-research-development-engineer-kitware-http-www-kitware-com-518-881-4417" style="margin:1.3em 0px 1em;padding:0px;font-size:1em;color:rgb(11,83,148);font-family:"open sans",sans-serif;font-weight:normal"><em>Sr. Research & Development Engineer</em> | <a href="http://www.kitware.com/">Kitware</a> | (518) 881-4417</h6>
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aXY+PC9kaXY+PC9kaXY+" style="height:0px;width:0px;max-height:0px;max-width:0px;overflow:hidden;font-size:0em;padding:0px;margin:0px">​</div></div></div></div>