### Description

The example provides vtkSliderWidget s to change tension, continuity and bias of the vtkKochanekSpline.

1. tension - Changes the length of the tangent vector      
2. bias - Primarily changes the direction of the tangent vector
3. continuity - Changes the sharpness in change between tangents

!!! seealso
    This [wikipedia article](https://en.wikipedia.org/wiki/Kochanek%E2%80%93Bartels_spline) describes the controlsin detail.
