3D Axis Arrows Not Always Shown

[RFingAdam]

+Z Axis Not Shown. Might need to Scale down 3D plot or Extend Axis futher. Currently it should start at the intersection of the Gain pattern for X distance

[RFingAdam]

Extended quivers in v3.0.0

Now, the Python axis is actually center, but it either renders in front or behind the pattern, depending on how it looks. Have to like render half the pattern behind the axis - render the axis - then render the front of the pattern in front of the axis. Or..?