Hi vmtk users and developers,
I'm doing my first steps with vmtk and trying to get the centerline of a
vascular geometry (ICA with an aneurysm). I'm doing this from python2.6 with
the script that follows:
#start script
from vmtk import pypes
from vmtk import vmtkscripts
#compute centerline
myArgsCl = 'vmtksurfacereader -ifile g1_b.vtk --pipe vmtkcenterlines -ofile
g1_cl.vtp'
myPypeCl = pypes.PypeRun(myArgsCl)
# compute centerline attributes
myArgsAttr = 'vmtkcenterlineattributes -ifile g1_cl.vtp -ofile g1_cl_at.vtp'
myPypeAttr = pypes.PypeRun(myArgsAttr)
# compute centerline geometry
myArgsClGeom = 'vmtkcenterlinegeometry -ifile g1_cl.vtp -ofile g1_cl_gm.vtp'
myPypeClGeom = pypes.PypeRun(myArgsClGeom)
#end script
I'm using vmtk0.9 on ubuntu installed from the package repository (following
the instructions on the web, I'm working on an Ubuntu10.04 Lucid
workstation). When I run the script I'm getting the following error for the
vmtkcenterlinegeometry script (the rest goes smooth):
Creating vmtkCenterlineGeometry instance.
Automatic piping vmtkcenterlinegeometry
Parsing options vmtkcenterlinegeometry
CenterlinesInputFileName = g1_cl.vtp
CenterlinesOutputFileName = g1_cl_gm.vtp
Explicit piping vmtkcenterlinegeometry
Input vmtkcenterlinegeometry members:
Id = 0
Disabled = 0
Centerlines = None
CenterlinesInputFileName = g1_cl.vtp
CurvatureArrayName = Curvature
TorsionArrayName = Torsion
FrenetTangentArrayName = FrenetTangent
FrenetNormalArrayName = FrenetNormal
FrenetBinormalArrayName = FrenetBinormal
LineSmoothing = 0
OutputSmoothedLines = 0
NumberOfSmoothingIterations = 100
SmoothingFactor = 0.1
CenterlinesOutputFileName = g1_cl_gm.vtp
Reading VTK XML surface file.
Executing vmtkcenterlinegeometry ...
ERROR: In
/build/buildd/vmtk-0.9.0/vtkVmtk/ComputationalGeometry/vtkvmtkCenterlineGeometry.cxx,
line 118
vtkvmtkCenterlineGeometry (0x9103278): LengthArrayName not specified
I see that there is a -lengtharray option for the vmtkbranchgeometry script,
but not for vmtkcenterlinegeometry...¿?
Do you know how to solve this or what I'm doing wrong?
Thanks in advance for your help. The library is great.
Best,
--
Nacho
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