<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">Cris Lacumba,<br>
<br>
There are a lot of ways to construct a polygonal representation of
a shape. The way you choose depends on what you are going to do
with the shape, how it needs to be textured, and the tools you
have available for your development. For IndexedFaceSet all of the
polygons must be convex (no "L" shaped ones). Most graphic systems
will convert the IFS to triangles, so if you want detailed
control, you might want to create your own triangles. This can be
particularly important if any polygon is a saddle point. Which way
do you triangulate - top-left to bottom-right or top-right to
bottom-left.<br>
<br>
<br>
<tt> -1 +1</tt><tt><br>
</tt><tt> +-------+</tt><tt><br>
</tt><tt> |</tt><tt> |</tt><tt><br>
</tt><tt> | |</tt><tt><br>
</tt><tt> +-------+</tt><tt><br>
</tt><tt> +1 -1</tt><tt><br>
</tt><br>
<br>
You may also wish to look into the 2D shapes (see
<a class="moz-txt-link-freetext" href="http://x3dgraphics.com/examples/X3dForWebAuthors/Chapter10-Geometry2D/">http://x3dgraphics.com/examples/X3dForWebAuthors/Chapter10-Geometry2D/</a>).
<br>
<br>
Vince and Doug have offered two solutions. If neither of these
works for you, please tell us more how the footprint will be used
and the tools you have available, other specific solutions can be
offered.<br>
<br>
<br>
Leonard Daly<br>
<br>
<br>
<br>
</div>
<blockquote
cite="mid:CAF3UkD4s+CdY6zmK1=H1sf6TR3Z6zNZfVrefvXL9g8fgmGgOLg@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>
<div>
<div>
<div>Hello to all,<br>
<br>
</div>
I'm trying to represent the 2D footprint of a
building.However, some of them have patios or holes inside
the footprint. (see the attachment)<br>
</div>
</div>
How can I represent that using IndexedFaceSet?<br>
<br>
Thanks in advance<br>
<br>
Best regards<br>
<br>
</div>
Cris <br>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
X3D-Public mailing list
<a class="moz-txt-link-abbreviated" href="mailto:X3D-Public@web3d.org">X3D-Public@web3d.org</a>
<a class="moz-txt-link-freetext" href="http://web3d.org/mailman/listinfo/x3d-public_web3d.org">http://web3d.org/mailman/listinfo/x3d-public_web3d.org</a>
</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>
X3D Co-Chair<br>
Cloud Consultant<br>
President, Daly Realism - <i>Creating the Future</i>
</font></div>
</body>
</html>