Method foot

numericals.py:117–124

(self, line: Line)

    return line.perpendicular_line(self)

  def foot(self, line: Line) -> Point:
    if isinstance(line, Line):
      l = line.perpendicular_line(self)
      return line_line_intersection(l, line)
    elif isinstance(line, Circle):
      c, r = line.center, line.radius
      return c + (self - c) * r / self.distance(c)
    raise ValueError('Dropping foot to weird type {}'.format(type(line)))

  def parallel_line(self, line: Line) -> Line:
    return line.parallel_line(self)