CatmullRomChain2
Parameters
points
The List of 2D points where CatmullRom2 is applied in groups of 4.
alpha
The tension of the curve. Use 0.0
for the uniform spline, 0.5
for the centripetal spline, 1.0
for the chordal spline.
loop
Whether to connect the first and last point, such that it forms a closed shape.