<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,</p>
<p style="margin:0px 0px 1.2em!important">You should use the widget if you think you would like to <strong>interactively</strong> place/draw and edit the line. If your goal is to just display a line given a set of parameters and update it without interaction, a simple cell based approach should work. See <a href="https://lorensen.github.io/VTKExamples/site/Cxx/GeometricObjects/LongLine/">https://lorensen.github.io/VTKExamples/site/Cxx/GeometricObjects/LongLine/</a></p>
<p style="margin:0px 0px 1.2em!important">Hope that helps.<br>Sankhesh</p>
<div title="MDH:SGksPGRpdj48YnI+PC9kaXY+PGRpdj5Zb3Ugc2hvdWxkIHVzZSB0aGUgd2lkZ2V0IGlmIHlvdSB0
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PjwvZGl2PjxkaXY+SG9wZSB0aGF0IGhlbHBzLjwvZGl2PjxkaXY+U2Fua2hlc2g8L2Rpdj4=" 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 Fri, Sep 15, 2017 at 7:19 AM K O ranjith <<a href="mailto:kor1581@gmail.com">kor1581@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hello,<div>I need to draw a couple of lines in an image viewer (vtkImageViewer2) for MRI slice planning application. Also should have to perform few operations (move, roatate)on the lines with mouse interactions and need to retrieve line properties (new coordinates after movement, width etc).</div><div>I have found examples with  two methods while searching </div><div>with <span style="background-color:rgb(249,249,249);color:rgb(0,0,0);font-family:monospace,monospace;font-size:1em">vtkLineWidget2 and with vtkLine </span></div><div>which approach will be more suitable?</div><div> what is the difference?have any difficulties for manipulation operations  if use <span style="font-size:13px;background-color:rgb(249,249,249);color:rgb(0,0,0);font-family:monospace,monospace">vtkLineWidget2</span><span style="font-size:13px;background-color:rgb(249,249,249);color:rgb(0,0,0);font-family:monospace,monospace">?</span></div><div><span style="font-size:13px;background-color:rgb(249,249,249);color:rgb(0,0,0);font-family:monospace,monospace">Please help</span></div><div><br></div></div>
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</blockquote></div><div dir="ltr">-- <br></div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div class="inbox-markdown-here-wrapper" style="font-family:'proza libre',sans-serif;color:rgb(0,56,107)"><h5 id="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--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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