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<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=609145623-26012006>Greetings.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=609145623-26012006>Running Win XP Home with VC++.Net Express 2005.
In attempting to build vtk 4.2 CMake 2.2-Patch3 reports that it cannot
compile a sample program and offers no output message. I tested my
own C program using cl from within a batch file and the comile. link,
execute sequence was successful.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=609145623-26012006>What
should I do?</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=609145623-26012006>BR</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=609145623-26012006>
Bob Palank</SPAN></FONT></DIV>
<BLOCKQUOTE>
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
vtkusers-bounces+bob=stlcc.org@vtk.org
[mailto:vtkusers-bounces+bob=stlcc.org@vtk.org]<B>On Behalf Of </B>Randall
Hand<BR><B>Sent:</B> Thursday, January 26, 2006 1:56 PM<BR><B>To:</B> Goodwin
Lawlor<BR><B>Cc:</B> vtkusers@public.kitware.com<BR><B>Subject:</B> Re:
[vtkusers] Re: Metaball Simulation<BR><BR></FONT></DIV>Clever.. so you mean I
would derive a vtkMetaballs from vtkImplicitFunction that basically had 1 user
function "AddMetaball(float position[3], float radius)". Then all i'll
need is to override the EvaluateFunction and EvaluateGradient to return the
correct value, right? <BR><BR>wow.. That's nowhere near as complicated as I
was expecting to have to do :) Thanks!<BR><BR>
<DIV><SPAN class=gmail_quote>On 1/26/06, <B class=gmail_sendername>Goodwin
Lawlor</B> <<A href="mailto:goodwin.lawlor@ucd.ie">
goodwin.lawlor@ucd.ie</A>> wrote:</SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">Randall
Hand wrote:<BR>> I'm curious if there is any way in VTK to do a create a
MetaBall-type <BR>> dataset. Example of metaballs can be found
here:<BR>> <A
href="http://www.corelmag.com/1103/overview/Metaball_Modeling.html">http://www.corelmag.com/1103/overview/Metaball_Modeling.html</A><BR>>
<<A href="http://www.corelmag.com/1103/overview/Metaball_Modeling.html">
http://www.corelmag.com/1103/overview/Metaball_Modeling.html</A>><BR>><BR>>
Basically I want to be able to define points in 3d-space along with
a<BR>> Radius for each, and then have a vtkPolyData (or something like
it) <BR>> created from the results of the Metaball surface. Is
there any way to<BR>> do this in VTK? I can get a rough
approximation by using a vtkGlyph3d<BR>> and mapping a vtkSphereSource at
each point, but that leaves <BR>> intersecting geometry without the
smooth features that come from a<BR>> Metaballs type algorithm.<BR><BR>Hi
Randall,<BR><BR>This looks a job for a vtkImplicitFunction... maybe called
vtkMetaballs.<BR>vtkMetaballs would define a centre, a radius, and a
potential function <BR>for each metaball you add to the system. Then, just
sample it with<BR>vtkSampleFunction, and create the surface with a
vtkContourFilter.<BR><BR>Have a look at this paper: <A
href="http://tinyurl.com/7fdox">http://tinyurl.com/7fdox
</A><BR><BR>hth<BR><BR>Goodwin<BR><BR>_______________________________________________<BR>This
is the private VTK discussion list.<BR>Please keep messages on-topic. Check
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clear=all><BR>-- <BR>Randall Hand<BR>Visualization Scientist, <BR>ERDC-MSRC
Vicksburg, MS<BR>Homepage: <A
href="http://www.yeraze.com">http://www.yeraze.com</A>
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