[vtkusers] Disconnected 3D lines segments

[Oldrich Svec]

Hi,

I try to save an array of disconnected 3D line segments using Activiz
.NET. I use the following sample code:

    points = vtkPoints.New()
    lines = vtkCellArray.New()

    id1 = points.InsertNextPoint(0.,0.,0.)
    id2 = points.InsertNextPoint(1.,0.,0.)
    id3 = points.InsertNextPoint(0.,1.,0.)
    id4 = points.InsertNextPoint(0.,0.,1.)

    line = vtkLine.New()
    line.GetPointIds().InsertNextId id1
    line.GetPointIds().InsertNextId id2
    lines.InsertNextCell line

    line = vtkLine.New()
    line.GetPointIds().InsertNextId id3
    line.GetPointIds().InsertNextId id4
    lines.InsertNextCell line

    poly = vtkPolyData.New()
    poly.SetPoints points
    poly.SetLines lines

    vtp = vtkPolyDataWriter.New()
    vtp.SetFileName @"D:\\test.vtk"
    vtp.SetFileTypeToASCII()
    vtp.SetInput poly
    vtp.Write()

Those lines are however connected. How to make the two lines disconnected?

PS: I obtain this vtk:

# vtk DataFile Version 3.0
vtk output
ASCII
DATASET POLYDATA
POINTS 4 float
0 0 0 1 0 0 0 1 0
0 0 1
LINES 2 10
4 0 0 0 1
4 0 0 2 3

and I want to obtain this vtk:

# vtk DataFile Version 3.0
vtk output
ASCII
DATASET POLYDATA
POINTS 4 float
0 0 0 1 0 0 0 1 0
0 0 1
LINES 2 6
2 0 1
2 2 3