<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 14 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-GB" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal" style="text-autospace:none">I have a question about the use of vtk filter. At page 91 of the paraview manual included in the binaries download, it is suggested to make a copy of the input (<o:p></o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.0pt;font-family:"Courier New";color:black">input_copy
</span><span style="font-size:8.0pt;font-family:"Courier New";color:#666666">= </span>
<span style="font-size:8.0pt;font-family:"Courier New";color:black">inputs[</span><span style="font-size:8.0pt;font-family:"Courier New";color:#666666">0</span><span style="font-size:8.0pt;font-family:"Courier New";color:black">]</span><span style="font-size:8.0pt;font-family:"Courier New";color:#666666">.</span><span style="font-size:8.0pt;font-family:"Courier New";color:black">NewInstance()<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.0pt;font-family:"Courier New";color:black">input_copy</span><span style="font-size:8.0pt;font-family:"Courier New";color:#666666">.</span><span style="font-size:8.0pt;font-family:"Courier New";color:black">UnRegister(</span><span style="font-size:8.0pt;font-family:"Courier New";color:#008100">None</span><span style="font-size:8.0pt;font-family:"Courier New";color:black">)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Courier New";color:black">input_copy</span><span style="font-size:8.0pt;font-family:"Courier New";color:#666666">.</span><span style="font-size:8.0pt;font-family:"Courier New";color:black">ShallowCopy(inputs[</span><span style="font-size:8.0pt;font-family:"Courier New";color:#666666">0</span><span style="font-size:8.0pt;font-family:"Courier New";color:black">]</span><span style="font-size:8.0pt;font-family:"Courier New";color:#666666">.</span><span style="font-size:8.0pt;font-family:"Courier New";color:black">VTKObject)
)</span> , but the reference is to the previous version of VTK. Does this still hold for VTK 6?
<o:p></o:p></p>
<p class="MsoNormal">In the paraview guide available for download under “documentation”, this issue is not mentioned (but the guide is also shorter). I have been using the filter without making copy of the input and I haven’t the impression of memory leaks
in my code <o:p></o:p></p>
<p class="MsoNormal">Livia<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Verdana","sans-serif";color:#6D6D6D;mso-fareast-language:EN-GB">Livia Barazzetti<br>
Ph.D. Student - Medical Image Analysis<br>
Institute for Surgical Technology and Biomechanics<br>
University of Bern<br>
Stauffacherstrasse 78<br>
CH-3014 Bern<br>
Tel +41 31 631 59 48<br>
</span><span style="color:#0D1C7F;mso-fareast-language:EN-GB"><a href="http://www.istb.unibe.ch/"><span style="font-size:7.5pt;font-family:"Verdana","sans-serif";color:blue">http://www.istb.unibe.ch</span></a></span><span style="mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</body>
</html>