def _get_recommended_pivot_bank(self, geometries, tm_ref, tm_ref_dir, pos_toes, direction=1):
"""
Determine recommended position using ray-cast from the toes.
TODO: If the ray-case fail, use a specified default value.
return: The recommended position as a world pymel.datatypes.Vector
"""
# Sanity check, ensure that at least one point is in the bounds of geometries.
# This can prevent rays from being fired from outside a geometry.
# TODO: Make it more robust.
filtered_geometries = []
for geometry in geometries:
xmin, ymin, zmin, xmax, ymax, zmax = cmds.exactWorldBoundingBox(geometry.__melobject__())
bound = pymel.datatypes.BoundingBox((xmin, ymin, zmin), (xmax, ymax, zmax))
if bound.contains(pos_toes):
filtered_geometries.append(geometry)
dir = pymel.datatypes.Point(direction, 0, 0) * tm_ref_dir
pos = libRigging.ray_cast_nearest(pos_toes, dir, filtered_geometries)
if not pos:
cmds.warning("Can't automatically solve FootRoll bank inn pivot.")
pos = pos_toes
pos.y = 0
return pos
def _get_bounds_using_raycast(positions, dirs, geometries, parent_tm=None, filter=None):
min_x = max_x = min_y = max_y = min_z = max_z = None
parent_tm_inv = parent_tm.inverse()
# Ray-cast
for pos in positions:
#x = pos.x
#y = pos.y
#z = pos.z
pos_local = pymel.datatypes.Point(pos) * parent_tm_inv if parent_tm is not None else pos
x_local = pos_local.x
y_local = pos_local.y
z_local = pos_local.z
if min_x is None or x_local < min_x:
min_x = x_local
if max_x is None or x_local > max_x:
max_x = x_local
if min_y is None or y_local < min_y:
min_y = y_local
if max_y is None or y_local > max_y:
max_y = y_local
if min_z is None or z_local < min_z:
min_z = z_local
if max_z is None or z_local > max_z:
max_z = z_local
for dir in dirs:
ray_cast_pos = libRigging.ray_cast_nearest(pos, dir, geometries, debug=False)
if ray_cast_pos is None:
continue
if parent_tm is not None:
ray_cast_pos = ray_cast_pos * parent_tm_inv
x = ray_cast_pos.x
y = ray_cast_pos.y
z = ray_cast_pos.z
if min_x is None or x < min_x:
min_x = x
if max_x is None or x > max_x:
max_x = x
if min_y is None or y < min_y:
min_y = y
if max_y is None or y > max_y:
max_y = y
if min_z is None or z < min_z:
min_z = z
if max_z is None or z > max_z:
max_z = z
return min_x, max_x, min_y, max_y, min_z, max_z
def raycast_nearest(self, pos, dir, geos=None):
"""
Return the nearest point on any of the rig registered geometries using provided position and direction.
"""
if not geos:
geos = self.get_shapes()
if not geos:
return None
result = libRigging.ray_cast_nearest(pos, dir, geos)
if not result:
return None
return result
def _get_bounds_using_raycast(positions,
dirs,
geometries,
parent_tm=None,
filter=None):
min_x = max_x = min_y = max_y = min_z = max_z = None
parent_tm_inv = parent_tm.inverse()
# Ray-cast
for pos in positions:
#x = pos.x
#y = pos.y
#z = pos.z
# Expand bounds using starting positions.
pos_local = pymel.datatypes.Point(
pos) * parent_tm_inv if parent_tm is not None else pos
x_local = pos_local.x
y_local = pos_local.y
z_local = pos_local.z
if min_x is None or x_local < min_x:
min_x = x_local
if max_x is None or x_local > max_x:
max_x = x_local
if min_y is None or y_local < min_y:
min_y = y_local
if max_y is None or y_local > max_y:
max_y = y_local
if min_z is None or z_local < min_z:
min_z = z_local
if max_z is None or z_local > max_z:
max_z = z_local
for dir in dirs:
ray_cast_pos = libRigging.ray_cast_nearest(pos,
dir,
geometries,
debug=False)
if ray_cast_pos is None:
continue
if parent_tm is not None:
ray_cast_pos = ray_cast_pos * parent_tm_inv
x = ray_cast_pos.x
y = ray_cast_pos.y
z = ray_cast_pos.z
if min_x is None or x < min_x:
min_x = x
if max_x is None or x > max_x:
max_x = x
if min_y is None or y < min_y:
min_y = y
if max_y is None or y > max_y:
max_y = y
if min_z is None or z < min_z:
min_z = z
if max_z is None or z > max_z:
max_z = z
return min_x, max_x, min_y, max_y, min_z, max_z