<div dir="ltr"><div class="markdown-here-wrapper" style="font-family:"Lucida Sans",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"><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-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;display:inline">vtkLineWidget2</code> follows the new <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-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;display:inline">widget <-> representation</code> model of widgets in VTK; where the representation determines how the widget is drawn on screen and the widget is responsible for interactions with the representation.</p>
<p style="margin:0px 0px 1.2em!important">Hope that helps.<br>Sankhesh</p>
<div title="MDH:SGksPGRpdj48YnI+PC9kaXY+PGRpdj5gdnRrTGluZVdpZGdldDJgIGZvbGxvd3MgdGhlIG5ldyBg
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IHdoZXJlIHRoZSByZXByZXNlbnRhdGlvbiBkZXRlcm1pbmVzIGhvdyB0aGUgd2lkZ2V0IGlzIGRy
YXduIG9uIHNjcmVlbiBhbmQgdGhlIHdpZGdldCBpcyByZXNwb25zaWJsZSBmb3IgaW50ZXJhY3Rp
b25zIHdpdGggdGhlIHJlcHJlc2VudGF0aW9uLjwvZGl2PjxkaXY+PGJyPjwvZGl2PjxkaXY+SG9w
ZSB0aGF0IGhlbHBzLjwvZGl2PjxkaXY+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 Mon, Sep 18, 2017 at 6:36 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>Thanks very much for the help.</div><div>What is the difference between vtk line widgets "vtkLineWidget" and "vtkLineWidget2 "?<br></div><div>I have to draw the lines above a dicom image displayed in an vtkImageViewer2 </div><div><br></div><div> </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Sep 15, 2017 at 6:15 PM, Sankhesh Jhaveri <span dir="ltr"><<a href="mailto:sankhesh.jhaveri@kitware.com" target="_blank">sankhesh.jhaveri@kitware.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="m_3287108237103417890m_-5142845473461179779markdown-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/" target="_blank">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>
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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><div class="m_3287108237103417890h5"><div dir="ltr">On Fri, Sep 15, 2017 at 7:19 AM K O ranjith <<a href="mailto:kor1581@gmail.com" target="_blank">kor1581@gmail.com</a>> wrote:<br></div></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="m_3287108237103417890h5"><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></div></div>
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</font></span></blockquote></div><span class="m_3287108237103417890HOEnZb"><font color="#888888"><div dir="ltr">-- <br></div><div class="m_3287108237103417890m_-5142845473461179779gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div class="m_3287108237103417890m_-5142845473461179779inbox-markdown-here-wrapper" style="font-family:'proza libre',sans-serif;color:rgb(0,56,107)"><h5 id="m_3287108237103417890m_-5142845473461179779inbox-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="m_3287108237103417890m_-5142845473461179779inbox--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/" target="_blank">Kitware</a> | <a href="tel:(518)%20881-4417" value="+15188814417" target="_blank">(518) 881-4417</a></h6>
<div title="MDH:PGIgc3R5bGU9ImZvbnQtZmFtaWx5OiB2ZXJkYW5hLCBzYW5zLXNlcmlmOyBjb2xvcjogcmdiKDEx
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</font></span></blockquote></div><br></div>
</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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