IsoSurface

[Luis Miguel Goncalves Lopes]

Dear VTK users,

	I want to view molecules with vtk...that is easy (at least the way i am
doing it....).
	What I did was create spheres from vtkSphereSource, create
vtkPolyDataMappers for each atom type (all I need is nitrogen, oxygen,
hydrogen, carbon and sulfur). Each vtkPolyDataMapper define the radius of
the sphere (atom)...the colors are the standard but i have to assign them
to the spheres (vtkActor) because i can´t assign them to the
vtkPolyDataMapper....
	Then after creating the vtkPolyDataMapper I created the actors (spheres)
which have the correspondent vtkPolyDataMapper assignes to them, and then I
gave them positions (xyz coordinates from ProteinDataBank files PDB)...
	So basically for those who don't understand anything about
chemistry...what I have is a set of point coordinates to each I assign
balls corresponding to each atom, with different size and colors....what I
want:

	How can I create a Isosurface around these spheres? I have seen the
example in vtkLogo.tcl and the transparent surface around the letters is
what I need...but I can´t apply it....How can I do it?

	Tanks for the help!!


					Luis Lopes

****************************************************************************
*********************************************************
Luis Miguel Gonçalves Lopes
Departamento de Quimica e Bioquimica, Faculdade de Ciências da Universidade
de Lisboa
Instituto de Ciencia Aplicada e Tecnologia,
Laboratorio de Bioqumica Aplicada
Ed. ICAT, Campus da FCUL, Campo Grande,  1749-016 Lisboa, Portugal.
Phone:+(351-1)- 750 0000 xx.2746
Fax:    +(351-1)- 757 3625
e-mail: l18596 at alunos.cc.fc.ul.pt
****************************************************************************
*********************************************************





****************************************************************************
**************************************


-----------------------------------------------------------------------------
This is the private VTK discussion list.  Please keep messages on-topic.
Check the FAQ at: <http://www.automatrix.com/cgi-bin/vtkfaq>
To UNSUBSCRIBE, send message body containing "unsubscribe vtkusers" to
<majordomo at gsao.med.ge.com>.  For help, send message body containing
"info vtkusers" to the same address.     Live long and prosper.
-----------------------------------------------------------------------------