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<div class="moz-cite-prefix">I would like to ask the question very
differently. My question is not to ignore the importance of
getting the definition correct for X3D <= V3.3.<br>
<br>
<br>
Most (>95%) 3D modeling is done with a tool. In non-CAD
environment, the tools is almost certainly Maya or Blender. Both
of those tools have extrusions built in to their interface. I
imagine CAD tools are similar. With so many tools providing
graphical extrusion editors, and some of the tools being
open-source (at least Blender);<br>
<br>
Do we need an extrusion node in V4 to support content developed
for V4+? <br>
<br>
<br>
Leonard Daly<br>
<br>
<br>
<br>
On 1/26/2016 7:15 AM, Alekseyev, Vsevolod (NIH/NIAID) [E] wrote:<br>
</div>
<blockquote
cite="mid:CC1C444FB9E32940BA18B288E9CAB83C213F30FC@msgb05.nih.gov"
type="cite">
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<div style="direction: ltr;font-family: Tahoma;color:
#000000;font-size: 10pt;">Hi X3D community,
<div><br>
</div>
<div>I've tried and failed twice to explain the problems with
the definition of the Extrusion node. So here's a tl;dr
version:</div>
<div><br>
</div>
<div>Dear authors of the X3D standard, please take a careful
look at the standard and answer me:</div>
<div><br>
</div>
<div>1) When the spine goes (0,0,0)-(0,-1,0), what is the CSP?</div>
<div>Note: all answers but one will render one of the reference
models in the Savage archive invalid.</div>
<div><br>
</div>
<div>2) When the spine goes <span style="font-size: 13.3333px;">(0,0,0)-(0,1,0)-(0,0,0),
what is the CSP?</span></div>
<div><span style="font-size: 13.3333px;"><br>
</span></div>
<div><span style="font-size: 13.3333px;">3) When the spine goes
(0,0,0)-(1,1,0)-</span><span style="font-size: 13.3333px;">(1,1,0)-</span><span
style="font-size: 13.3333px;">(1,1,0)-(2,0,0), what is the
CSP for the three middle points?</span></div>
</div>
<br>
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<br>
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</pre>
</blockquote>
<br>
<br>
<div class="moz-signature">-- <br>
<font class="tahoma,arial,helvetica san serif" color="#333366">
<font size="+1"><b>Leonard Daly</b></font><br>
3D Systems & Cloud Consultant<br>
X3D Co-Chair on Sabbatical<br>
LA ACM SIGGRAPH Chair<br>
President, Daly Realism - <i>Creating the Future</i>
</font></div>
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