Flow lines into vectors grid (not vectors field)

Hello everyone,
I have a grid of points and vectors for each point in a 2D plane. It is not a vector field since it was not create with points charge but it represents the perpendicular vectors of sun vectors in a unrolled facade).

I am looking for a way to create flow continue lines on this plane using these vector (like in the attached image, wich is an architectural project of BIG in Montpellier France).

Any suggestions? I would like to have a similar space between each curves. Is it a way to create a vector field from these vectors?
Thank you for your help,

Lines_from_vectors.gh (354.4 KB)