[vtkusers] error in using vtkCellLocator::IntersectWithLine

[Mathieu Malaterre]

xujf wrote:
> Hi,vtkusers:
>    I get an isosurface using vtkImageMarchingCubes,and I get a line using vtklinesource.
> I want to get the point of intersection of the isosurface and the line.In order to get
> the point of intersection,I use vtkCellLocator::IntersectWithLine.But error is found:
> AttributeError:IntersectWithLine.
> 
> this is my programe:(written in python)
> 
> import sys,os 
> from paths import *
> from vtkMINCReader import *
> 
> reader=vtkMINCReader()
> reader.SetFileName("E:/picture/brain.mnc")
> 
> filter=vtkImageMarchingCubes()
> filter.SetInput(reader.GetOutput())
> filter.SetValue(0,1200)
> 
> tolerance=100.0

xujf,

	Just after tolerance add:

filter.Update()
print filter.GetOutput().GetNumberOfCells()

If it is equal to zero you won't be able to go any furhter.

Mathieu