def far_test(shape1, shape2, membership = 0):
""" Checks to see if the distance is large enough between two shapes to determine they are
far from each other, estimating the possible maximum distance between them as a baseline """
xs = [vertex[0] for vertex in shape1.scene_bounding_box]
ys = [vertex[1] for vertex in shape1.scene_bounding_box]
zs = [vertex[2] for vertex in shape1.scene_bounding_box]
corners = [(x,y,z) for x in xs for y in ys for z in zs]
distances = [tools.calculate_length(((shape1.location[0]-corner[0]), (shape1.location[1]-corner[1]), (shape1.location[2]-corner[2]))) for corner in corners]
maximum_distance = max(distances)
distance = tools.calculate_length(tools.calculate_absolute_distance_center(shape1, shape2))
relative_distance = float(distance)/maximum_distance
value = far_value(relative_distance)
#print shape1.name, value, shape2.name
if membership == 1:
return value
if membership == 2:
return near_value(relative_distance)
if value > acceptable_threshold:
return True
else:
return False
"""
def fill_vectors(self):
""" Keeps a vector from the center of two shapes with the shape information, and the distance """
for shape in self.shapes:
for shape2 in self.shapes:
if shape != shape2:
vector = tools.calculate_absolute_distance_center(shape, shape2)
distance = tools.calculate_length(vector)
self.vectors.append((shape,shape2,shape.name, shape2.name, vector,distance,shape.bounding_box[1][1]-shape.bounding_box[0][1]))
def directional_test(shape1, shape2, direction):
""" Computes the distance vector from the center of the shapes and returns it with a boolean
indicating the direction of the vector """
center_distance = tools.calculate_absolute_distance_center(shape1, shape2)[direction]
#side_distance = tools.calculate_absolute_distance_sides(shape1, shape2, direction)
if center_distance > 0:
return (center_distance, False)
else:
return (center_distance, True)
def intersect_test(shape1, shape2):
""" Checks to see if the distance vector between the center and the distance vector
between the sides of two shapes are in the opposite direction """
counter = 0
for side in xrange(3):
if tools.calculate_absolute_distance_sides(shape1, shape2, side)*tools.calculate_absolute_distance_center(shape1, shape2)[side] <= 0:
counter += 1
if counter > 2:
return True
else:
return False
def contact_test(shape1, shape2):
""" Checks to see if two shapes are near enough to be called adjacent by comparing the
distance from the center and their size """
# Needs work
return False
sides1 = []
for index in xrange(2):
sides1.append(shape1.bounding_box[1][index] - shape1.bounding_box[0][index])
sides2 = []
for index in xrange(2):
sides2.append(shape2.bounding_box[1][index] - shape2.bounding_box[0][index])
side1 = min(sides1)
side2 = min(sides2)
side = min([side1, side2])
distance = tools.calculate_length(tools.calculate_absolute_distance_center(shape1, shape2))
num_shape1s_in_distance = math.fabs(float(distance) / side)
if num_shape1s_in_distance <= 1.5 and not intersect_test(shape1, shape2):
return True
else:
return False
