<style> p {margin-top:0px;margin-bottom:0px;} </style> <table border=0 width=100%% cellpadding=0 cellspacing=0 align=center> <tr> <td valign=top style='padding:8pt;'><font size=2><P>
<BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<P>
<TABLE cellSpacing=0 cellPadding=0 width="100%" align=center border=0>
<TBODY>
<TR>
<TD style="PADDING-RIGHT: 8pt; PADDING-LEFT: 8pt; PADDING-BOTTOM: 8pt; PADDING-TOP: 8pt" vAlign=top><FONT size=2>
<P>If you are not too concern about the added thickness to your circle the you can also use <FONT size=2></P>
<P></P>
<P>
<P>vtkRotationalExtrusionFilter and <FONT size=2>SetAngle(360)</FONT>. This needs a profile (line) which you can define with one point at x,R and other at x, R+tol. Where</P>
<P></P>
<P></P>
<P>
<P>x is your center and R is your radius and tol is some tolerance, normally 1e-4 or 1e03...</P>
<P></P>
<P></P>
<P>
<P> </P>
<P></P>
<P></P>
<P>
<P>-Regards</P>
<P></P>
<P></P>
<P>
<P>Praveen</P>
<P></P>
<P></P>
<P>
<P></FONT><BR>
<BR>
<BR>
<BR>
<BR>
</P>
<P></P>
<P>
<BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P>---------[ Received Mail Content ]----------<BR>
</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><B>Subject : </B>[vtkusers] Re: How to draw a circle ?<BR>
</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><B>Date : </B>Mon, 06 Nov 2006 18:18:43 +0000<BR>
</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><B>From : </B>Goodwin Lawlor <goodwin.lawlor@ucd.ie><BR>
</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><B>To : </B>vtkusers@public.kitware.com<BR>
</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><B>Cc : </B><BR>
</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P>Hummel, Jerome wrote:</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
> Dear VTK users,</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
> </P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
> Sorry in advance if the answer is straightforward, I am kind of a newbie here. I</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
> can' t figure out how to draw a circle (or a torre) in a 3D space (giving a plan</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
> a center and a radius)?</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
> Can anybody help?</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
> Thank you for your time.</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
> regards,</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
Hi Jerome,</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
You can use vtkRegularPolygonSource... set the center, radius and </P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
normal. Obviously, the more NumberOfSides you set the more circular your </P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
polygon will look.</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
hth</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
Goodwin</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
_______________________________________________</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
This is the private VTK discussion list. </P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
Please keep messages on-topic. Check the FAQ at: http://www.vtk.org/Wiki/VTK_FAQ</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
Follow this link to subscribe/unsubscribe:</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
http://www.vtk.org/mailman/listinfo/vtkusers</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
</P>
<P></P>
<P></P>
<P>
<P></P>
<P></P>
<P></P>
<P>
<P><BR>
</P></BLOCKQUOTE>
<P></P>
<P></P>
<P>
<P></P></FONT></TD></TR></TBODY></TABLE><BR>
<DIV>
<HR style="MARGIN-LEFT: 0px; WIDTH: 85%; TEXT-ALIGN: left">
<BR>
The new LYCOS MAIL. Want to share all your favorite videos, photos and music with your friends? Now you can.<BR>
Sign up now for your free account. 3 gigs of storage for free. Unlimited size file attachments. <A href="http://mail.lycos.com" target=_new><U>http://mail.lycos.com</U></A></DIV></BLOCKQUOTE>
<P></P></font></td></tr>
</table>
<br/>
<div>
<hr style="width:85%;margin-left:0px;text-align:left"/><br/>
The new LYCOS MAIL. Want to share all your favorite videos, photos and music with your friends? Now you can.<br/>
Sign up now for your free account. 3 gigs of storage for free. Unlimited size file attachments. <a href="http://mail.lycos.com" target="_new"><u>http://mail.lycos.com</u></a>
</div>