def get_closestTarget(source=None, objects=None):
"""
Get the closest object to a give source
:parameters:
source(str/vector) -- source point or object
targetSurface -- surface to check transform, nurbsSurface, curve, mesh supported
loc -- whether to loc point found
:returns
position, distance, shape (list)
"""
_str_func = 'get_closestTarget'
_point = False
if VALID.vectorArg(source) is not False:
_point = source
elif mc.objExists(source):
_point = POS.get(source)
if not _point: raise ValueError, "Must have point of reference"
l_dists = []
for obj in objects:
pos = POS.get(obj)
l_dists.append(get_distance_between_points(_point, pos))
return objects[(l_dists.index((min(l_dists))))]
def get_targetsOrderedByDist(source=None, objects=None):
"""
Get the closest object to a give source
:parameters:
source(str/vector) -- source point or object
targetSurface -- surface to check transform, nurbsSurface, curve, mesh supported
:returns
[[obj,dist],...]
"""
_str_func = 'get_closestTarget'
_point = False
if VALID.vectorArg(source) is not False:
_point = source
elif mc.objExists(source):
_point = POS.get(source)
if not _point: raise ValueError, "Must have point of reference"
l_dists = []
d_objs = {}
for obj in objects:
pos = POS.get(obj)
_d = get_distance_between_points(_point, pos)
if _d in l_dists:
raise ValueError, "Cannot handle matching distances. {0}".format(
_str_func)
l_dists.append(_d)
d_objs[_d] = obj
l_dists.sort()
return [[d_objs[d], d] for d in l_dists]
def create_closest_point_node(source=None,
targetSurface=None,
singleReturn=False):
"""
Create a closest point on surface node and wire it
:parameters:
source(str/vector) -- source point or object
targetSurface -- surface to check transform, nurbsSurface, curve, mesh supported
singleReturn - only return single return if we have
:returns
node(list)
"""
try:
_str_func = 'create_closest_point_node'
_transform = False
if VALID.vectorArg(source) is not False:
_transform = mc.spaceLocator(n='closest_point_source_loc')[0]
POS.set(_transform, source)
elif mc.objExists(source):
if SEARCH.is_transform(source):
_transform = source
elif VALID.is_component(source):
_transform = mc.spaceLocator(
n='{0}_loc'.format(NAMES.get_base(source)))[0]
POS.set(_transform, POS.get(source))
else:
_transform = SEARCH.get_transform(source)
if not _transform: raise ValueError, "Must have a transform"
if SEARCH.is_shape(targetSurface):
l_shapes = [targetSurface]
else:
l_shapes = mc.listRelatives(targetSurface, s=True, fullPath=True)
if not l_shapes:
raise ValueError, "Must have shapes to check."
_nodes = []
_locs = []
_types = []
_shapes = []
for s in l_shapes:
_type = VALID.get_mayaType(s)
if _type not in ['mesh', 'nurbsSurface', 'nurbsCurve']:
log.error(
"|{0}| >> Unsupported target surface type. Skipping: {1} |{2} "
.format(_str_func, s, _type))
continue
_loc = mc.spaceLocator()[0]
_res_loc = mc.rename(
_loc, '{0}_to_{1}_result_loc'.format(NAMES.get_base(source),
NAMES.get_base(s)))
_locs.append(_res_loc)
_types.append(_type)
_shapes.append(s)
if _type == 'mesh':
_node = mc.createNode('closestPointOnMesh')
_node = mc.rename(
_node, "{0}_to_{1}_closePntMeshNode".format(
NAMES.get_base(source), NAMES.get_base(s)))
ATTR.connect((_transform + '.translate'),
(_node + '.inPosition'))
ATTR.connect((s + '.worldMesh'), (_node + '.inMesh'))
ATTR.connect((s + '.worldMatrix'), (_node + '.inputMatrix'))
_pos = ATTR.get(_node, 'position')
ATTR.connect((_node + '.position'), (_res_loc + '.translate'))
_nodes.append(_node)
elif _type == 'nurbsSurface':
closestPointNode = mc.createNode('closestPointOnSurface')
closestPointNode = mc.rename(
closestPointNode, "{0}_to_{1}_closePntSurfNode".format(
NAMES.get_base(source), NAMES.get_base(s)))
mc.connectAttr((_transform + '.translate'),
(closestPointNode + '.inPosition'))
#attributes.doSetAttr(closestPointNode,'inPositionX',_point[0])
#attributes.doSetAttr(closestPointNode,'inPositionY',_point[1])
#attributes.doSetAttr(closestPointNode,'inPositionZ',_point[2])
ATTR.connect((s + '.worldSpace'),
(closestPointNode + '.inputSurface'))
ATTR.connect((closestPointNode + '.position'),
(_res_loc + '.translate'))
_nodes.append(closestPointNode)
elif _type == 'nurbsCurve':
_node = mc.createNode('nearestPointOnCurve')
_node = mc.rename(
_node, "{0}_to_{1}_nearPntCurveNode".format(
NAMES.get_base(source), NAMES.get_base(s)))
p = []
distances = []
mc.connectAttr((_transform + '.translate'),
(_node + '.inPosition'))
mc.connectAttr((s + '.worldSpace'), (_node + '.inputCurve'))
ATTR.connect((_node + '.position'), (_res_loc + '.translate'))
_nodes.append(_node)
if not singleReturn:
return _locs, _nodes, _shapes, _types
_l_distances = []
pos_base = POS.get(_transform)
for i, n in enumerate(_nodes):
p2 = POS.get(_locs[i])
_l_distances.append(get_distance_between_points(pos_base, p2))
if not _l_distances:
raise ValueError, "No distance value found"
closest = min(_l_distances)
_idx = _l_distances.index(closest)
for i, n in enumerate(_nodes):
if i != _idx:
mc.delete(n, _locs[i])
return _locs[_idx], _nodes[_idx], _shapes[_idx], _types[_idx]
except Exception, err:
cgmGen.cgmExceptCB(Exception, err)
def get_closest_point(source=None, targetSurface=None, loc=False):
"""
Get the closest point on a target surface/curve/mesh to a given point or object.
Evaluates to all sub shapes to get closest point for multi shape targets.
:parameters:
source(str/vector) -- source point or object
targetSurface -- surface to check transform, nurbsSurface, curve, mesh supported
loc -- whether to loc point found
:returns
position, distance, shape (list)
"""
_str_func = 'get_closest_point'
_point = False
if VALID.vectorArg(source) is not False:
_point = source
elif mc.objExists(source):
_point = POS.get(source)
if not _point: raise ValueError, "Must have point of reference"
_loc = mc.spaceLocator(n='get_closest_point_loc')[0]
POS.set(_loc, _point)
if SEARCH.is_shape(targetSurface):
_shapes = [targetSurface]
elif VALID.is_component(targetSurface):
_shapes = mc.listRelatives(VALID.get_component(targetSurface)[1],
s=True,
fullPath=True)
else:
_shapes = mc.listRelatives(targetSurface, s=True, fullPath=True)
if not _shapes:
log.error("|{0}| >> No shapes found. Skipping: {1}".format(
_str_func, targetSurface))
mc.delete(_loc)
return False
_l_res_positions = []
_l_res_shapes = []
_l_res_distances = []
for s in _shapes:
_type = VALID.get_mayaType(s)
if _type not in ['mesh', 'nurbsSurface', 'nurbsCurve']:
log.error(
"|{0}| >> Unsupported target surface type. Skipping: {1} |{2} | {3}"
.format(_str_func, s, _type))
_l_res_positions.append(False)
continue
if _type == 'mesh':
_node = mc.createNode('closestPointOnMesh')
ATTR.connect((_loc + '.translate'), (_node + '.inPosition'))
ATTR.connect((s + '.worldMesh'), (_node + '.inMesh'))
ATTR.connect((s + '.worldMatrix'), (_node + '.inputMatrix'))
_pos = ATTR.get(_node, 'position')
_tmpLoc = mc.spaceLocator(n='tmp')[0]
ATTR.connect((_node + '.position'), (_tmpLoc + '.translate'))
_l_res_positions.append(POS.get(_tmpLoc))
mc.delete(_node)
mc.delete(_tmpLoc)
elif _type == 'nurbsSurface':
closestPointNode = mc.createNode('closestPointOnSurface')
ATTR.set(closestPointNode, 'inPositionX', _point[0])
ATTR.set(closestPointNode, 'inPositionY', _point[1])
ATTR.set(closestPointNode, 'inPositionZ', _point[2])
ATTR.connect((s + '.worldSpace'),
(closestPointNode + '.inputSurface'))
_l_res_positions.append(ATTR.get(closestPointNode, 'position'))
mc.delete(closestPointNode)
elif _type == 'nurbsCurve':
_node = mc.createNode('nearestPointOnCurve')
p = []
distances = []
mc.connectAttr((_loc + '.translate'), (_node + '.inPosition'))
mc.connectAttr((s + '.worldSpace'), (_node + '.inputCurve'))
p = [
mc.getAttr(_node + '.positionX'),
mc.getAttr(_node + '.positionY'),
mc.getAttr(_node + '.positionZ')
]
_l_res_positions.append(p)
mc.delete(_node)
mc.delete(_loc)
if not _l_res_positions:
raise ValueError, "No positions found"
for p in _l_res_positions:
if p:
_l_res_distances.append(get_distance_between_points(_point, p))
else:
_l_res_distances.append('no')
closest = min(_l_res_distances)
_idx = _l_res_distances.index(closest)
_pos = _l_res_positions[_idx]
if not _pos:
return False
#raise ValueError,"Failed to find point"
if loc:
_loc = mc.spaceLocator(n='get_closest_point_loc')[0]
POS.set(_loc, _pos)
return _pos, _l_res_distances[_idx], _shapes[_idx]