def intersect_bounding_box_without_limits_3D(self,
bounding_box,
DISPLAY=False):
global littleEpsilon
try:
if (not self.get_prim()):
raise Errors.CantBeNoneError(
'Prim cant be none',
'We need a prim to calculate tbn some steps after')
except Errors.CantBeNoneError as e:
Errors.Error.display_exception(e)
exit()
if (not self.get_points_tangent_space()):
self.convert_3D_to_2D(self.get_prim())
this_point_relative = self.get_tbn_class().get_point_which_is_relative(
)
this_tbn_inverse_matrix = self.get_tbn_class().get_tbn_inverse()
param_bounding_box_points_in_this_tangent_space = []
for point in bounding_box.get_rectangle_object_space():
point_relative = GeoMath.vecSub(point, this_point_relative)
point_tangent_space = this_tbn_inverse_matrix.mulPoint3ToMatrix3(
point_relative)
param_bounding_box_points_in_this_tangent_space.append(
point_tangent_space)
intersections = GeoMath.getIntersectionsBetweenEdges2D(self.get_edges_tangent_space(), \
GeoMath.getEdgesFromPoints(param_bounding_box_points_in_this_tangent_space))
if (intersections):
#===============================================================
# Check if the limits are touching and if it are touching it,
# check if the intersection is in there. If it is in there,
# the intersection lie in the limit, so we dont consider an
# intersection
#===============================================================
edges_shared_between_bounding_boxes = \
GeoMath.getEdgesBetweenEdges(self.get_edges_tangent_space(), \
GeoMath.getEdgesFromPoints(param_bounding_box_points_in_this_tangent_space))
inside = False
print "Edges shared between"
print edges_shared_between_bounding_boxes
for intersection in intersections:
inside = GeoMath.pointInEdges(
intersection, edges_shared_between_bounding_boxes)
if (not inside):
break
#===============================================================
# If all intersections lie in the edges shared between bounding
# boxes we discart its
#===============================================================
if (inside):
intersections = []
else:
# check if intersections are in the corner, because we consider corner as limit
shared_points_between_bounding_boxes = GeoMath.getSharedPoints(
self.get_rectangle_tangent_space(),
param_bounding_box_points_in_this_tangent_space)
# If all intersections lie in the corner we doen't consider intersections as intersections
true_intersections = list(intersections)
for intersection in intersections:
for corner in shared_points_between_bounding_boxes:
if (GeoMath.vecModul(
GeoMath.vecSub(corner, intersection)) <=
littleEpsilon):
true_intersections.remove(intersection)
break
intersections = true_intersections
if (DISPLAY):
# TEMP: exit
1 / 0
exit()
for intersection in intersections:
this_tbn_matrix = self.get_tbn_class().get_tbn()
point_object_space = this_tbn_matrix.mulPoint3ToMatrix3(
intersection)
point_absolute = GeoMath.vecPlus(point_object_space,
this_point_relative)
self.to_display_intersections.append(point_absolute)
self.display_intersections()
return intersections
def intersect_bounding_box_without_limits_3D(self, bounding_box, DISPLAY=False):
global littleEpsilon
try:
if not self.get_prim():
raise Errors.CantBeNoneError("Prim cant be none", "We need a prim to calculate tbn some steps after")
except Errors.CantBeNoneError as e:
Errors.Error.display_exception(e)
exit()
if not self.get_points_tangent_space():
self.convert_3D_to_2D(self.get_prim())
this_point_relative = self.get_tbn_class().get_point_which_is_relative()
this_tbn_inverse_matrix = self.get_tbn_class().get_tbn_inverse()
param_bounding_box_points_in_this_tangent_space = []
for point in bounding_box.get_rectangle_object_space():
point_relative = GeoMath.vecSub(point, this_point_relative)
point_tangent_space = this_tbn_inverse_matrix.mulPoint3ToMatrix3(point_relative)
param_bounding_box_points_in_this_tangent_space.append(point_tangent_space)
intersections = GeoMath.getIntersectionsBetweenEdges2D(
self.get_edges_tangent_space(), GeoMath.getEdgesFromPoints(param_bounding_box_points_in_this_tangent_space)
)
if intersections:
# ===============================================================
# Check if the limits are touching and if it are touching it,
# check if the intersection is in there. If it is in there,
# the intersection lie in the limit, so we dont consider an
# intersection
# ===============================================================
edges_shared_between_bounding_boxes = GeoMath.getEdgesBetweenEdges(
self.get_edges_tangent_space(),
GeoMath.getEdgesFromPoints(param_bounding_box_points_in_this_tangent_space),
)
inside = False
print "Edges shared between"
print edges_shared_between_bounding_boxes
for intersection in intersections:
inside = GeoMath.pointInEdges(intersection, edges_shared_between_bounding_boxes)
if not inside:
break
# ===============================================================
# If all intersections lie in the edges shared between bounding
# boxes we discart its
# ===============================================================
if inside:
intersections = []
else:
# check if intersections are in the corner, because we consider corner as limit
shared_points_between_bounding_boxes = GeoMath.getSharedPoints(
self.get_rectangle_tangent_space(), param_bounding_box_points_in_this_tangent_space
)
# If all intersections lie in the corner we doen't consider intersections as intersections
true_intersections = list(intersections)
for intersection in intersections:
for corner in shared_points_between_bounding_boxes:
if GeoMath.vecModul(GeoMath.vecSub(corner, intersection)) <= littleEpsilon:
true_intersections.remove(intersection)
break
intersections = true_intersections
if DISPLAY:
# TEMP: exit
1 / 0
exit()
for intersection in intersections:
this_tbn_matrix = self.get_tbn_class().get_tbn()
point_object_space = this_tbn_matrix.mulPoint3ToMatrix3(intersection)
point_absolute = GeoMath.vecPlus(point_object_space, this_point_relative)
self.to_display_intersections.append(point_absolute)
self.display_intersections()
return intersections
