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<DIV><FONT color=#0000ff size=2 face=Arial><SPAN class=314151512-08062011>Dear
Samuel,</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN
class=314151512-08062011></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN class=314151512-08062011>- The
type of facets are either triangles or quads (or both for a mesh using mixed
elements),</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN class=314151512-08062011>- the
type of interpolation can be either linear or quadratic where some nodes
traduces the curvature .... (for mechanical FEA) </SPAN></FONT></DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN class=314151512-08062011>-
coordinate system => cartesian one</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN class=314151512-08062011>- kind
of shape : has a torus to be treated different than a simple sphere
?</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN
class=314151512-08062011></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN class=314151512-08062011>I have
some information's on closed surfaces using triangles ... of course a solution
is to "split" all the elements into 3 nodes triangles ... but is it the
simpliest way ? the most robust one ?</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN
class=314151512-08062011></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN
class=314151512-08062011>Paul</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff size=2 face=Arial><SPAN
class=314151512-08062011></SPAN></FONT> </DIV><FONT color=#0000ff size=2
face=Arial></FONT><BR>
<DIV dir=ltr lang=fr class=OutlookMessageHeader align=left>
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<FONT size=2 face=Tahoma><B>De :</B> Samuel GOUGEON
[mailto:Samuel.Gougeon@univ-lemans.fr] <BR><B>Envoyé :</B> mercredi 8 juin
2011 14:13<BR><B>À :</B> users@lists.scilab.org<BR><B>Objet :</B> Re:
[scilab-Users] Volume calculation from closed meshed
surface<BR></FONT><BR></DIV>
<DIV></DIV>Hello,<BR><BR>----- Message d'origine ----- <BR>De : Carrico, Paul
<BR>Date : 08/06/2011 12:09:
<BLOCKQUOTE cite=mid:55A12CBC06A8C9459DCE0BBEF8122FDC0498B36C@exchsrv.AUXITROL1
type="cite">
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<DIV><FONT size=2 face=Arial><SPAN class=017580610-08062011>Dear
All,</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Arial><SPAN
class=017580610-08062011></SPAN></FONT> </DIV>
<DIV><FONT size=2 face=Arial><SPAN class=017580610-08062011>I know it's
possible to calculate the volume from a meshed closed surface (triangle, quads
or mixed quads/triangle) ...</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Arial><SPAN
class=017580610-08062011></SPAN></FONT> </DIV>
<DIV><FONT size=2 face=Arial><SPAN class=017580610-08062011>Does somebody can
give me some advices in finding documents and algorithmes
?</SPAN></FONT></DIV></BLOCKQUOTE>It depends on<BR> - which type of facets
you are using (triangles, quads)<BR> - which type of vertices coordinates
you are using (cartesian, cylindrical, spherical)<BR> - which type of
interpolation you are using over verticed facets : linear, quadratic,
cubic..<BR>Moreover, the shape of the volume is of importance : without / with
holes (ex: sphere / torus),<BR> holes internal or connected to the outer
space, etc...<BR><BR>All this stuff is about finite elements. So, many
references about F.E. should<BR>be
convenient.<BR><BR>HTH<BR>Samuel<BR><BR></BODY></HTML>
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