Unexpected behavior if field line length increased

[dthoma6]

Field lines show unexpected behavior if field line length increased. See main.py, line 132, change np.linspace(0,2,5) -> np.linspace(0,20,5) causes problems. Unusual behavior seen in plot.

[rweigel]

Field lines show unexpected behavior if field line length increased. See main.py, line 132, change np.linspace(0,2,5) -> np.linspace(0,20,5) causes problems. Unusual behavior seen in plot.