def draw(self, component: Union["_BufferedLineSegment", "_BufferedArc"]):
pos = self.path.currentPosition()
pos = Vector(pos.x(), pos.y(), 0)
start = component.start_point()
jump_distance = pos.distance(start.xy) # compare 2D to 2D
if jump_distance > 1e-5:
if not self.first_component:
print(f'warning: non-contiguous polyline: {self.current_entity}. '
f'Jump from {pos} to {start} (distance of {jump_distance})')
self.path.moveTo(start.x, start.y)
component.draw(self.path)
if self.color is None:
self.color = component.color
elif component.color != self.color:
print(f'warning: component has different color to the polyline {component.color} != {self.color}')
self.first_component = False
