<div dir="ltr"><span style="font-size:12.8px">Hello,</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">Thanks for the tips it helped me.I would like to know if the length of axes</span><br style="font-size:12.8px"><span style="font-size:12.8px">of the legendactor can be modified.I used the corneroffsetfactor value to</span><br style="font-size:12.8px"><span style="font-size:12.8px">change it.Can it be changed using any other means.</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">Thanks in Advance</span><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Nov 7, 2017 at 9:37 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_-2367025006451552191markdown-here-wrapper" style="font-family:"Lucida Sans",Verdana,sans-serif;color:rgb(11,83,148)"><p style="margin:0px 0px 1.2em!important">There’s no direct API but you can calculate it. All you have to do is compute the length of the axis in world coordinates. </p>
<p style="margin:0px 0px 1.2em!important">Something like this:</p>
<pre style="font-size:0.95em;font-family:Consolas,Inconsolata,Courier,monospace;font-size:1em;line-height:1.2em;margin:1.2em 0px"><code class="m_-2367025006451552191hljs m_-2367025006451552191language-cpp" 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;white-space:pre-wrap;overflow:auto;border-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;border:1px solid rgb(204,204,204);padding:0.5em 0.7em;display:block!important;display:block;overflow-x:auto;padding:0.5em;background-color:rgb(255,255,255);color:black;background-position:initial initial;background-repeat:initial initial"><span class="m_-2367025006451552191hljs-keyword" style="color:rgb(170,13,145)">double</span> * leftPoint = axis->GetPositionCoordinate()-<wbr>>GetComputedWorldValue(<wbr>renderer);
<span class="m_-2367025006451552191hljs-keyword" style="color:rgb(170,13,145)">double</span> * rightPoint = axis->GetPosition2Coordinate()<wbr>->GetComputedWorldValue(<wbr>renderer);
<span class="m_-2367025006451552191hljs-keyword" style="color:rgb(170,13,145)">double</span> distance = vtkMath::<span class="m_-2367025006451552191hljs-built_in" style="color:rgb(92,38,153)">sqrt</span>(vtkMath::<wbr>Distance2BetweenPoints(<wbr>leftPoint, rightPoint));
<span class="m_-2367025006451552191hljs-comment" style="color:rgb(0,106,0)">// Scale is 1 : distance</span>
</code></pre>
<p style="margin:0px 0px 1.2em!important">Hope that helps.</p>
<p style="margin:0px 0px 1.2em!important">Best,<br>Sankhesh</p>
<div title="MDH:VGhlcmUncyBubyBkaXJlY3QgQVBJIGJ1dCB5b3UgY2FuIGNhbGN1bGF0ZSBpdC4gQWxsIHlvdSBo
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PGRpdj5TYW5raGVzaDwvZGl2Pg==" style="height:0;width:0;max-height:0;max-width:0;overflow:hidden;font-size:0em;padding:0;margin:0">​</div></div></div><div class="HOEnZb"><div class="h5"><br><div class="gmail_quote"><div dir="ltr">On Tue, Nov 7, 2017 at 4:30 AM K O ranjith <<a href="mailto:kor1581@gmail.com" target="_blank">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, it's  working.</div><div>Can I get the measured value (which is displayed as label axis) from vtkLegendScaleActor object.</div><div><br></div><div>Ranjith KO</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jun 23, 2017 at 7:52 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_-2367025006451552191m_9025589844434154047m_4607209742937058047markdown-here-wrapper" style="font-family:'Lucida Sans',Verdana,sans-serif;color:rgb(11,83,148)"><p style="margin:0px 0px 1.2em!important">Take a look at <a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/LegendScaleActor" target="_blank">vtkLegendScaleActor</a>. It uses <a href="http://www.vtk.org/doc/nightly/html/classvtkAxisActor.html" target="_blank">vtkAxisActor</a> internally.</p>
<p style="margin:0px 0px 1.2em!important">Hth,<br>Sankhesh</p>
<div title="MDH:VGFrZSBhIGxvb2sgYXQgW3Z0a0xlZ2VuZFNjYWxlQWN0b3JdKDxhIGhyZWY9Imh0dHA6Ly93d3cu
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</font></span></blockquote></div><br></div>
</blockquote></div><div dir="ltr">-- <br></div><div class="m_-2367025006451552191gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div class="m_-2367025006451552191inbox-markdown-here-wrapper" style="font-family:'proza libre',sans-serif;color:rgb(0,56,107)"><h5 id="m_-2367025006451552191inbox-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_-2367025006451552191inbox--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> | (518) 881-4417</h6>
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</div></div></blockquote></div><br></div>