Re: [vmtk-users] bifurcation plane

[qiang z. <zen...@ya...>]

bifurcation plane is work well.
 
another problem, when I caculate the curvature using the following script "vmtkcenterlinegeometry -ifile foo_cl.vtp -smoothing 1 -ofile foo_clgm.vtp", I just get the one curvature value for every GroupIds. but in generally, the curve for every GroupIds has different points (point1, point2,...) and every point in curve has a curvature value respectively.
So how to understand this approach considering one curvature value as curvature value of entire GroupIds?
 
YiQiang  

--- 13年5月7日，周二, Luca Antiga <luc...@gm...> 写道：


发件人: Luca Antiga <luc...@gm...>
主题: Re: [vmtk-users] bifurcation plane
收件人: "qiang zeng" <zen...@ya...>
抄送: vmt...@li...
日期: 2013年5月7日,周二,下午2:40




Hi YiQiang,
 point1 and point2 are any two points on the plane away from the origin.
You could do
point1 = origin + upnormal
point2 = origin + normal x upnormal
where x indicates the cross product.


Luca

On 07/mag/2013, at 07:39, qiang zeng <zen...@ya...> wrote:








Usig the command line:
 
vmtkbranchextractor -ifile foo_cl.vtp -radiusarray@ MaximumInscribedSphereRadius --pipe
vmtkbifurcationreferencesystems -ofile foo_rs.dat
 
I get the one point and two vectors, then I fill the coordinate into the Paraview (point -> Origin, Normal -> Point1 and Upnormal -> Point2) ?

Best
YiQiang

--- 13年5月6日，周一, Luca Antiga <luc...@gm...> 写道：


发件人: Luca Antiga <luc...@gm...>
主题: Re: [vmtk-users] bifurcation plane
收件人: "qiang zeng" <zen...@ya...>
抄送: vmt...@li...
日期: 2013年5月6日,周一,下午8:54



Hi YiQiang, 
 the figure you attached was created in Paraview using the origin and normal of the plane
as computed with vmtk (you can output them in plain text using a .dat file format) to specify the plane 
in Paraview (Sources->Plane). It works well if the number of figures you create is small.


If you need to create the visualization automatically you'll need to write VTK code and use the
vtkPlaneSource class to create the plane.
The class: http://www.vtk.org/doc/nightly/html/classvtkPlaneSource.html
Examples: 
http://www.vtk.org/doc/nightly/html/c2_vtk_e_5.html#c2_vtk_e_vtkPlaneSource
http://www.vtk.org/doc/nightly/html/c2_vtk_t_15.html#c2_vtk_t_vtkPlaneSource


Best,




Luca





On May 6, 2013, at 9:40 AM, qiang zeng wrote:






Hi all,
When I am using VMTK, I want to display the bifurcation plane (the view is like aneurysm bifurcation plane, as an attachment "bifurcation plane.jpg").
Does anyone know a way to do this?
Best,
YiQiang<bifurcation plane.jpg>------------------------------------------------------------------------------
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