def _write_boat_area(pier, stg_manager, coords_transform: co.Transformation):
if len(pier.nodes) < 3:
return
# Guess a possible position for realistic boat placement
linear_ring = shg.LinearRing(pier.nodes)
centroid = linear_ring.centroid
# Simplify
ring = linear_ring.convex_hull.buffer(
40, cap_style=CAP_STYLE.square,
join_style=JOIN_STYLE.bevel).simplify(20)
for p in ring.exterior.coords:
line_coords = [[centroid.x, centroid.y], p]
target_vector = shg.LineString(line_coords)
coords = linear_ring.coords
for i in range(len(coords) - 1):
segment = LineString(coords[i:i + 2])
if segment.length > 20 and segment.intersects(target_vector):
direction = math.degrees(
math.atan2(segment.coords[0][0] - segment.coords[1][0],
segment.coords[0][1] - segment.coords[1][1]))
parallel = segment.parallel_offset(10, 'right')
boat_position = parallel.interpolate(segment.length / 2)
try:
pos_global = coords_transform.to_global(
(boat_position.x, boat_position.y))
_write_model(segment.length, stg_manager, pos_global,
direction, pier.elevation)
except AttributeError as reason:
logging.error(reason)
class Flight:
def __init__(self, flight_json):
self.flight_json = flight_json
self.id = flight_json['id']
self.properties = flight_json['properties']
self.line = LineString(flight_json['geometry']['coordinates'])
# return true if the flight starts inside the specified FIR
def starts_in_fir(self, fir):
return fir.polygon.contains(Point(self.line.coords[0]))
# return true if the flight ends inside the specified FIR
def ends_in_fir(self, fir):
return fir.polygon.contains(Point(self.line.coords[-1]))
# return true if the flight crosses the specified FIR at least once
def crosses_fir(self, fir):
return self.line.intersects(fir.polygon)
# return the amount of times the flight crosses the specified FIR
def times_crosses_fir(self, fir):
ntimes = 0
isinside = False
for coord in self.line.coords:
if fir.polygon.contains(Point(coord)):
if not isinside:
ntimes += 1
isinside = True
else:
isinside = False
return ntimes
# return true if the flight is domestic given the roi as fir
def is_domestic(self, fir):
return self.starts_in_fir(fir) and self.ends_in_fir(fir)
# return true if the flight is a fly-through given the roi as fir
def is_flythrough(self, fir):
return (not self.starts_in_fir(fir) and not self.ends_in_fir(fir))
