Function naming_position

numericals.py:890–922

Figure out a good naming position on the drawing.

(
    ax: matplotlib.axes.Axes, p: Point, lines: list[Line], circles: list[Circle]
)

def naming_position(
    ax: matplotlib.axes.Axes, p: Point, lines: list[Line], circles: list[Circle]
) -> tuple[float, float]:
  """Figure out a good naming position on the drawing."""
  _ = ax
  r = 0.08
  c = Circle(center=p, radius=r)
  avoid = []
  for p1, p2 in lines:
    try:
      avoid.extend(circle_segment_intersect(c, p1, p2))
    except InvalidQuadSolveError:
      continue
  for x in circles:
    try:
      avoid.extend(circle_circle_intersection(c, x))
    except InvalidQuadSolveError:
      continue

  if not avoid:
    return [p.x + 0.01, p.y + 0.01]

  angs = sorted([ang_of(p, a) for a in avoid])
  angs += [angs[0] + 2 * np.pi]
  angs = [(angs[i + 1] - a, a) for i, a in enumerate(angs[:-1])]

  d, a = max(angs)
  ang = a + d / 2

  name_pos = p + Point(np.cos(ang), np.sin(ang)) * r

  x, y = (name_pos.x - r / 1.5, name_pos.y - r / 1.5)
  return x, y


def draw_point(