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<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy;mso-ansi-language:EN-GB'>Another
worthy alternative would be the <span class=SpellE>OpenMesh</span> library: <a
href="http://www.openmesh.org/">http://www.openmesh.org/</a>.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy;mso-ansi-language:EN-GB'>Greetings,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>
<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial;color:navy;mso-ansi-language:EN-GB'>Toon</span></font></span></span><span
class=GramE><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy;mso-ansi-language:EN-GB'>.</span></font></span><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy;mso-ansi-language:EN-GB'><o:p></o:p></span></font></p>
<div>
<table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 width="48%"
style='width:48.0%;border-collapse:collapse;border:none;mso-border-alt:outset #111111 .75pt;
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<tr height=32 style='mso-yfti-irow:0;height:24.0pt'>
<td width="100%" height=32 style='width:100.0%;border:inset #111111 1.0pt;
mso-border-alt:inset #111111 .75pt;padding:3.75pt 3.75pt 3.75pt 3.75pt;
height:24.0pt'>
<p class=MsoPlainText><font size=2 color=navy face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;color:navy;mso-ansi-language:EN-GB;
mso-no-proof:yes'>Postal Address:<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=navy face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;color:navy;mso-ansi-language:EN-GB;
mso-no-proof:yes'> <o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=navy face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;color:navy;mso-ansi-language:EN-GB;
mso-no-proof:yes'> Vision Lab, Department of Physics<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=navy face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;color:navy;mso-ansi-language:EN-GB;
mso-no-proof:yes'> </span><span style='mso-no-proof:yes'>University of
Antwerp (CMI)<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=navy face="Courier New"><span
style='font-size:10.0pt;color:navy;mso-no-proof:yes'> Groenenborgerlaan
171 (U306)<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=navy face="Courier New"><span
style='font-size:10.0pt;color:navy;mso-no-proof:yes'> </span></font><font
color=navy><span lang=EN-GB style='color:navy;mso-ansi-language:EN-GB;
mso-no-proof:yes'>B-2020 Antwerp, Belgium</span><span style='mso-no-proof:
yes'><o:p></o:p></span></font></p>
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padding:3.75pt 3.75pt 3.75pt 3.75pt;height:24.75pt'>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New";color:navy;
mso-ansi-language:EN-GB;mso-no-proof:yes'>Tel: +32 (0) 3 265 32 24</span></font><font
color=navy><span style='color:navy;mso-no-proof:yes'><o:p></o:p></span></font></p>
</td>
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padding:3.75pt 3.75pt 3.75pt 3.75pt;height:24.75pt'>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:navy;mso-no-proof:
yes'>Fax: +32 (0) 3 265 33 18</span></font><font color=navy><span
style='color:navy;mso-no-proof:yes'><o:p></o:p></span></font></p>
</td>
</tr>
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padding:3.75pt 3.75pt 3.75pt 3.75pt;height:24.75pt'>
<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=FR
style='font-size:10.0pt;font-family:"Courier New";color:navy;mso-ansi-language:
FR;mso-no-proof:yes'>Email: </span></font><font color=navy><span lang=FR
style='color:navy;mso-ansi-language:FR;mso-no-proof:yes'><a
href="mailto:toon.huysmans@ua.ac.be"><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>toon.huysmans@ua.ac.be</span></font></a><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 color=navy face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:navy;mso-no-proof:
yes'>Web: </span></font><font size=2 color=navy face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New";color:navy;
mso-ansi-language:EN-GB;mso-no-proof:yes'><a
href="http://webhost.ua.ac.be/visielab/staff/tohu/"><span lang=NL-BE
style='mso-ansi-language:NL-BE'>http://webhost.ua.ac.be/visielab/staff/tohu/</span></a></span></font><font
color=navy><span style='color:navy;mso-no-proof:yes'><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><span class=GramE><font size=2
face=Tahoma><span lang=NL style='font-size:10.0pt;font-family:Tahoma;
mso-ansi-language:NL'>-----Oorspronkelijk</span></font></span><font size=2
face=Tahoma><span lang=NL style='font-size:10.0pt;font-family:Tahoma;
mso-ansi-language:NL'> bericht-----<br>
<b><span style='font-weight:bold'>Van:</span></b> vtkusers-bounces+denhuys=hotmail.com@vtk.org
[mailto:vtkusers-bounces+denhuys=hotmail.com@vtk.org] <b><span
style='font-weight:bold'>Namens </span></b>Deepak Roy<br>
<b><span style='font-weight:bold'>Verzonden:</span></b> woensdag 7 september
2005 0:50<br>
<b><span style='font-weight:bold'>Aan:</span></b> vtkusers@vtk.org<br>
<b><span style='font-weight:bold'>Onderwerp:</span></b> [vtkusers] Triangular
Mesh Datastructure</span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Hello,<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>I <span class=GramE>am</span>
confronted with a graphics problem, to be more specific 3D Segmentation of
Triangular Surface Meshes.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>The data is in the format
of vrml files.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>I <span class=GramE>am</span>
in search of a library, that supports the following:<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:71.4pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1;
tab-stops:list 71.4pt'><![if !supportLists]><font size=2 face=Symbol><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Symbol;
mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol'><span
style='mso-list:Ignore'>·<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]>A Robust Triangular Mesh Data
Structure that stores vertices, faces, texture indices and texels,
vertex-edge-face adjacency<o:p></o:p></p>
<p class=MsoNormal style='margin-left:71.4pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1;
tab-stops:list 71.4pt'><![if !supportLists]><font size=2 face=Symbol><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Symbol;
mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol'><span
style='mso-list:Ignore'>·<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]>Examining n-ring neighborhood of a
vertex<o:p></o:p></p>
<p class=MsoNormal style='margin-left:71.4pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1;
tab-stops:list 71.4pt'><![if !supportLists]><font size=2 face=Symbol><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Symbol;
mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol'><span
style='mso-list:Ignore'>·<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]>Computing vertex curvatures<o:p></o:p></p>
<p class=MsoNormal style='margin-left:71.4pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1;
tab-stops:list 71.4pt'><![if !supportLists]><font size=2 face=Symbol><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Symbol;
mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol'><span
style='mso-list:Ignore'>·<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]>Mesh import from a vrml file<o:p></o:p></p>
<p class=MsoNormal style='margin-left:71.4pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1;
tab-stops:list 71.4pt'><![if !supportLists]><font size=2 face=Symbol><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Symbol;
mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol'><span
style='mso-list:Ignore'>·<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]>Connected component <span
class=GramE>analysis</span> of the mesh<o:p></o:p></p>
<p class=MsoNormal style='margin-left:71.4pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1;
tab-stops:list 71.4pt'><![if !supportLists]><font size=2 face=Symbol><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Symbol;
mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol'><span
style='mso-list:Ignore'>·<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]>Access to vertex and face normals<o:p></o:p></p>
<p class=MsoNormal style='margin-left:71.4pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1;
tab-stops:list 71.4pt'><![if !supportLists]><font size=2 face=Symbol><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Symbol;
mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol'><span
style='mso-list:Ignore'>·<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]>Sub mesh extraction<o:p></o:p></p>
<p class=MsoNormal style='margin-left:71.4pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1;
tab-stops:list 71.4pt'><![if !supportLists]><font size=2 face=Symbol><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Symbol;
mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol'><span
style='mso-list:Ignore'>·<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]>Affine Transformations on the mesh<o:p></o:p></p>
<p class=MsoNormal style='margin-left:53.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>I came to know that ITK
has a mesh class that implements a very <span class=GramE>basic</span> version
of the mesh datastructure and also has some mesh filters.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Is it a good idea to use
itk::mesh to facilitate the needs mentioned <span class=GramE>above ?</span><span
style='mso-spacerun:yes'> </span><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Are any mesh segmentation
algorithms being added to future versions of <span class=GramE>ITK ?</span><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>I also heard VTK has some
support for the meshes, but apparently VTK does not incorporate any mesh
segmentation algorithms. The VTK CVS seems to support vrml import but not the
stable release.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Are there any other
libraries <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>I need your
suggestions…….<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Thanks in advance.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Bye<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Deepak<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
</div>
<p style='margin-left:35.4pt'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>__________________________________________________<br>
Do You Yahoo<span class=GramE>!</span>?<br>
Tired of spam? Yahoo! Mail has the best spam protection around <br>
http://mail.<span class=GramE>yahoo</span>.com <o:p></o:p></span></font></p>
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