DESCRIPTION 
This exercise explains the “Rod” Goals-Angle component in Kangaroo, which can be used to create a bending and stretching resistant rod, suitable for when designing bending-active structures. To simulate a curve wanting to straighten itself out, an Angle Factor of 0 degrees needs to be applied to a discretised polyline version of that curve. The image shows the transition over time from an original curve into a curve that is “as straight as possible” whilst maintaining the anchor points in place