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<div class="moz-cite-prefix">Thanks for the answer, Cory.<br>
<br>
Weiguang<br>
<br>
On 20/07/2015 11:56 AM, Cory Quammen wrote:<br>
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cite="mid:CAB5Fpx5FHJc5FeHHUe2X6BraBjFuUbyn8+05aq3mFUpMseRfWQ@mail.gmail.com"
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<div><span style="font-size:12.8000001907349px">Weiguang,</span><br>
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Points are duplicated for the polygons defining the end caps so
that a separate normal for the end cap can be specified - it's a
common computer graphics technique to get sharp edges where
desired. Uncheck the "Capping" property and your source will
have 20 points as you probably expected (but no end caps).
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<div>If the point duplicating weren't done, the cylinder would
look funny at the ends. Try running the Clean filter on the
cylinder to see what it would look like. This merges the
duplicate points.</div>
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<div>Cory</div>
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Jul 20, 2015 at 11:33 AM,
Weiguang guan <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:guanw@rhpcs.mcmaster.ca" target="_blank">guanw@rhpcs.mcmaster.ca</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">A naive
question: how can a cylinder with resolution=10 have 40
points?<br>
<br>
Best,<br>
Weiguang<br>
<br>
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-- <br>
<div class="gmail_signature">Cory Quammen<br>
R&D Engineer<br>
Kitware, Inc.</div>
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