def CreatJntAlngCrv():
selCrv = cmds.ls(sl=1, type='transform')
Name = cmds.textFieldGrp(NameTextFG, q=1, tx=1)
IKCtlAmnt = cmds.intSliderGrp(IKCtlintSG, q=1, v=1)
JntNum = cmds.intSliderGrp(JntNumintSG, q=1, v=1)
jntAmnt = (JntNum * (IKCtlAmnt - 1)) + 1
for k in selCrv:
cmds.setAttr(k + '.visibility', 0)
cmds.rebuildCurve(k, ch=0, rpo=1, rt=0, end=1, kr=1, kcp=0, kep=1, kt=0, s=jntAmnt - 1, d=3,
tol=0.01) ## Rebuild Crv ##
preJnt = ""
rootJnt = ""
for x in range(len(selCrv)):
for i in range(0, jntAmnt):
cmds.select(cl=True)
newJnt = cmds.joint(n=Name + str(x + 1) + '_joint1')
motionPath = cmds.pathAnimation(newJnt, c=selCrv[x], fractionMode=True)
cmds.cutKey(motionPath + ".u", time=())
cmds.setAttr(motionPath + ".u", i * (1.0 / (jntAmnt - 1)))
cmds.delete(newJnt + ".tx", icn=True)
cmds.delete(newJnt + ".ty", icn=True)
cmds.delete(newJnt + ".tz", icn=True)
cmds.delete(motionPath)
if i == 0:
preJnt = newJnt
rootJnt = newJnt
continue
cmds.parent(newJnt, preJnt)
preJnt = newJnt
cmds.joint(rootJnt, e=True, oj="xyz", sao="yup", ch=True, zso=True) # ---- Orient Joint----#
selJnt = cmds.ls(Name + "*_joint1", type='joint')
for a in range(len(selCrv)): # ---- Orient the End Joint----#
# print a, SelHi_(selJnt)[a][-1]
endJnt = SelHi_(selJnt)[a][-1]
cmds.joint(endJnt, e=1, oj="none", ch=1, zso=1)
def rebuildByLength(rate):
sels = cmds.ls(sl=1)
info = cmds.createNode('curveInfo')
for sel in sels:
if cmds.nodeType(sel) == 'transform':
sel = cmds.listRelatives(sel, s=1)[0]
if not cmds.isConnected(sel + '.local', info + '.inputCurve'):
cmds.connectAttr(sel + '.local', info + '.inputCurve', f=1)
length = cmds.getAttr(info + '.arcLength')
cmds.rebuildCurve(sel,
ch=0,
rpo=1,
rt=0,
end=1,
kr=0,
kcp=0,
kep=0,
kt=0,
s=length * rate,
tol=0.01)
cmds.delete(info)
cmds.select(sels)
def CutRailPieces(curve="", height=1.0, width=1.0):
mc.delete(curve, ch=True)
railGeoList = []
tempCurCurve = [curve]
mc.rebuildCurve(curve, s=curveLength / trackSegmentLength * 5)
finalSegmentCurve = mc.detachCurve(
curve + ".ep[" + str(int(curveLength / trackSegmentLength * 5) - 5) +
"]",
rpo=False,
ch=False)
finalSegmentGeo = MakeRailPiece(curve=finalSegmentCurve[1],
width=width,
height=height)
railGeoList.append(finalSegmentGeo)
mc.delete(finalSegmentCurve[0], finalSegmentCurve[1])
deleteGroup = []
for x in range(int(curveLength / trackSegmentLength)):
tempCurCurve = mc.detachCurve(tempCurCurve[0] + ".ep[5]",
rpo=True,
ch=False)
curRail = MakeRailPiece(curve=tempCurCurve[1],
width=width,
height=height)
railGeoList.append(curRail)
deleteGroup.append(tempCurCurve[0])
print "iteration"
mc.delete(deleteGroup)
return railGeoList
def createInterpolatedCurve(curve1, curve2, v):
interpolatedCurve = mc.duplicate(curve1, rr=True, rc=True)[0]
for shape in mc.listRelatives(curve2, shapes=True, fullPath=True):
cvList = (mc.ls([shape + '.cv[*]'], flatten=True))
mc.rebuildCurve(interpolatedCurve,
ch=0,
rpo=1,
rt=0,
end=1,
kr=0,
kcp=0,
kep=1,
kt=0,
s=len(cvList) - 3,
d=3,
tol=0)
for i in range(len(cvList)):
pos1 = mc.pointPosition('%s.cv[%i]' % (interpolatedCurve, i))
pos2 = mc.pointPosition('%s.cv[%i]' % (curve2, i))
newPos = ((pos2[0] - pos1[0]) * v + pos1[0],
(pos2[1] - pos1[1]) * v + pos1[1],
(pos2[2] - pos1[2]) * v + pos1[2])
mc.move(newPos[0],
newPos[1],
newPos[2],
'%s.cv[%i]' % (interpolatedCurve, i),
a=True)
return interpolatedCurve
def createCurve(ptList,start,end,group=''): ''' ''' # Initialize Curves crvList = [] for pt in ptList: pos = mc.pointPosition(pt) curve = mc.curve(p=[pos,pos],d=1) curve = mc.rename(curve,pt+'_curve') crvList.append(curve) # Track Curves for i in range(start,end+1): mc.currentTime(i) for n in range(len(ptList)): pos = mc.pointPosition(ptList[n]) mc.curve(crvList[n],a=True,p=pos) # Remove Initial CV and Rebuild for crv in crvList: mc.delete(crv+'.cv[0]') mc.rebuildCurve(crv,ch=False,rpo=True,rt=0,end=1,kr=2,kcp=True,kep=True) # Group Curves if group: # Check Group if not mc.objExists(group): group = mc.group(em=True,n=group) # Parent Curves to Group mc.parent(crvList,group) # Return Result if group: return [group] else: return crvList
def createOnCurve( curve=None, numOfJnts=5, parent=True ): """ create specified number of joints on input curve """ curve = curveUtil.getShape(curve) if numOfJnts < 2 : cmds.error( "number of joints must be greater than 1.") newJnts = [] curve = cmds.duplicate(curve)[0] cmds.rebuildCurve (curve , ch=False ,rpo=True ,rt=0 ,end=1 ,kr=0 ,kcp=False ,kep=True ,kt=0 , s=200 , d=1 , tol=0.01 ) curveShape = curveUtil.getShape(curve) cmds.select(clear=True) segSize = 1.0/ (numOfJnts-1) for i in range(numOfJnts): pos = curveUtil.getPointAtParam(curveShape, segSize*i, 'world') if not parent: cmds.select(clear=True) newJnts.append( cmds.joint(p=pos) ) cmds.delete(curve) return newJnts
def surface_from_alternate_point(sel_list, name=''):
"""
Creates surface from alternate point selection
:param sel_list:
:param name:
:return:
"""
# create interpolated selection list
start_list = sel_list[::2]
end_list = sel_list[1::2]
curve_list = []
for n, (start, end) in enumerate(zip(start_list, end_list)):
# create curve from a to b
curve = curve_from_a_to_b(start, end, name='{}_{:02d}'.format(name, n))
# rebuild curve to new cv count
mc.rebuildCurve(curve, ch=0, rpo=1, rt=0, end=1, kr=0, kcp=0, kep=1, kt=0, s=3, d=3, tol=0.01)
curve_list.append(curve)
# loft curves to create surface
surface = mc.loft(curve_list, name='{}_srf'.format(name),
ch=0, u=1, c=0, ar=1, d=3, ss=1, rn=0, po=1, rsn=True)[0]
# group created nodes
curve_grp = mc.group(curve_list, name='{}_crv_grp'.format(name))
main_grp = mc.group(surface, curve_grp, name='{}_srf_grp'.format(name))
return {'curves': curve_list,
'surface': surface,
'container': main_grp}
def __init__(self, curve_sel, vertex_list):
self.curve_sel = curve_sel
self.verts = vertex_list
self.find_length = Find_Out()
self.link_length = self.find_length.edge_length(self.verts)
self.chain_length = self.find_length.curve_length(self.curve_sel)
self.link_total = int(self.chain_length/self.link_length)
cmds.duplicate(self.curve_sel, n = 'buildCurve')
cmds.rebuildCurve('buildCurve', ch = 1, rpo = 1, rt = 0, end = 1, kr = 2, kep = 1, kt = 0, kcp = 0, s = self.link_total/2, d = 3, tol = 0.01 )
self.num_cv = int(cmds.getAttr ('buildCurve.degree'))+ (cmds.getAttr ('buildCurve.spans'))
for dummy_cv in range(self.num_cv):
dummy_cv_pos = (cmds.getAttr ('buildCurve.cv['+ str(dummy_cv) +']'))
if dummy_cv == 0:
cmds.joint(n=self.curve_sel+'_jointRoot',p = dummy_cv_pos[0])
elif dummy_cv == self.num_cv - 1:
cmds.joint(n=self.curve_sel+'_jointEnd', p = dummy_cv_pos[0])
else:
cmds.joint(n=self.curve_sel+'_joint_'+(str(dummy_cv)),p = dummy_cv_pos[0])
cmds.delete('buildCurve')
cmds.ikHandle( sj = (self.curve_sel+'_jointRoot'), ee = (self.curve_sel+'_jointEnd'), c = self.curve_sel,
sol = 'ikSplineSolver', scv = 0, pcv = 0, ccv = 0, ns = 4)
def finalize(self):
log.debug("returnList: %s"% self.returnList)
log.debug("createdList: %s"% self.createdList)
buffer = [] #self.i_module.templateNull.templateStarterData
log.debug("starting data: %s"% buffer)
#Make sure we have enough points
#==============
handles = self.i_module.templateNull.handles
if len(self.returnList) < handles:
log.warning("Creating curve to get enough points")
curve = curves.curveFromPosList(self.returnList)
mc.rebuildCurve (curve, ch=0, rpo=1, rt=0, end=1, kr=0, kcp=0, kep=1, kt=0,s=(handles-1), d=1, tol=0.001)
self.returnList = curves.returnCVsPosList(curve)#Get the pos of the cv's
mc.delete(curve)
#Store info
#==============
for i,p in enumerate(self.returnList):
buffer.append(p)#need to ensure it's storing properly
#log.info('[%s,%s]'%(buffer[i],p))
#Store locs
#==============
log.debug("finish data: %s"% buffer)
self.templateNull.__setattr__('templateStarterData',buffer,lock=True)
#self.i_module.templateNull.templateStarterData = buffer#store it
log.info("'%s' sized!"%self.i_module.getShortName())
dragFactory.clickMesh.finalize(self)
def make_curve(): new_curve = cmds.polyToCurve(degree=1, form=2, conformToSmoothMeshPreview=1)[0] spans = num_spans(new_curve) *2 cmds.rebuildCurve(new_curve, rt=0, ch=1, end=1, d=3, kr=2, s=spans, kcp=0, tol=0.01, kt=0, rpo=1, kep=1) first_cv = new_curve + '.cv[0]' cmds.move(0.0001, 0.0001, 0.0001, first_cv ,r=True, ) return new_curve
def createCurveaBasedOnLocator( prevLoc, loc, baseName, hrsSys ): leastSquaresMod = mn.createNode( 'leastSquaresModifier' ) origCurv = crv.Curve( mc.curve( d = 1, ep = [prevLoc.worldPosition, loc.worldPosition] ) ) index = mm.eval( 'getNextFreeMultiIndex( "'+ hrsSys.name +'.inputHair", 0 )' ) origCurv.name = 'spiderWeb_base_'+ baseName + '_' + str( index ) + '_CRV' mc.rebuildCurve( origCurv.name, rpo = 1, rt = 0, end = 1, kr = 0, kcp = 1, kep = 1, kt =0, s= 4, d = 1, tol = 0.01 ) origCurv.a.intermediateObject.v = 1 controledCurv = origCurv.duplicate() origCurv.shape.attr( 'worldSpace[0]' ) >> leastSquaresMod.a.inputNurbsObject prevLoc.attr( 'worldPosition[0]') >> leastSquaresMod.attr( 'pointConstraint[0].pointPositionXYZ' ) leastSquaresMod.attr( 'pointConstraint[0].pointConstraintU' ).v = 0 loc.attr( 'worldPosition[0]') >> leastSquaresMod.attr( 'pointConstraint[1].pointPositionXYZ' ) leastSquaresMod.attr( 'pointConstraint[1].pointConstraintU' ).v = 1 leastSquaresMod.a.outputNurbsObject >> controledCurv.shape.a.create controledCurv.shape.attr( 'worldMatrix[0]' ) >> leastSquaresMod.a.worldSpaceToObjectSpace fol = mn.createNode( 'follicle' ) fol.a.restPose.v = 1 fol.a.startDirection.v = 1 fol.a.pointLock.v = 3 fol.a.degree.v = 3 fol.a.sampleDensity.v = 3 fol.a.outHair >> hrsSys.attr( 'inputHair[' + str( index ) + ']' ) hrsSys.attr( 'outputHair[' + str( index ) + ']' ) >> fol.a.currentPosition controledCurv.shape.attr( 'worldSpace[0]' ) >> fol.a.startPosition curv = crv.Curve( mc.curve( d = 3, ep = [prevLoc.worldPosition, loc.worldPosition] ) ) curv.name = 'spiderWeb_' + baseName + '_' + str( index ) + '_CRV' fol.a.outCurve >> curv.a.create folPar = fol.parent folPar.name = 'spiderWeb_' + baseName + '_' + str( index ) + '_FOL' return curv, folPar
def twoPointCurve(node1, node2, degree=1):
"""Creates a degree 3 NURBS curve from two input objects """
crvCmd = 'cmds.curve(degree=1, p=['
startEndCtrls = [node1, node2]
for ctrl in startEndCtrls:
tfm = cmds.xform(ctrl, query=True, worldSpace=True, translation=True)
crvCmd += ' ('
for tfmItem in tfm:
crvCmd += ' ' + str(tfmItem) + ','
crvCmd += '),'
crvCmd += '], k=[0,1])'
crv = cmds.python(crvCmd)
if degree > 1:
cmds.rebuildCurve(crv,
ch=0,
rpo=1,
rt=0,
end=1,
kr=0,
kcp=0,
kep=1,
kt=0,
s=4,
d=degree,
tol=0.01)
crv = cmds.rename(crv, "{}_crv".format(node1))
crvShp = cmds.listRelatives(crv, shapes=True)[0]
return crv, crvShp
def ldmt_pfxToCurves():
if cmds.currentCtx() == 'dynWireCtx1':
new = cmds.ls(sl=True)
if not new:
return
whichNode = cmds.ls(cmds.listRelatives(new, s=True)[0], st=True)[1]
if whichNode == 'stroke':
newStroke = new[0]
cmds.select(newStroke, r=True)
# return
mel.eval('doPaintEffectsToCurve(1);')
st = cmds.listRelatives(newStroke, s=True)[0]
c = cmds.listConnections(st, et=True, t='nurbsCurve')[0]
cmds.rebuildCurve(c,
ch=1,
rpo=1,
rt=0,
end=1,
kr=0,
kcp=0,
kep=1,
kt=0,
s=10,
d=3,
tol=0.01)
cmds.select(cl=True)
strokeMainCurves = cmds.listRelatives(c, ap=1)
strokeCurve = cmds.listRelatives(strokeMainCurves, ap=1)
cmds.ungroup(strokeCurve)
cmds.ungroup(strokeMainCurves)
cmds.evalDeferred('cmds.delete("' + newStroke + '")')
def getLoftSurfaceFromSelCurves(sels, close=False):
import sgBFunction_dag
poses = []
for sel in sels:
pos = om.MPoint(*cmds.xform(sel + '.cv[0]', q=1, ws=1, t=1))
poses.append(pos)
targetIndices = [0]
nextIndex = 0
for i in range(len(poses)):
minDist = 100000.0
minDistIndex = nextIndex
for j in range(1, len(poses)):
if nextIndex == j: continue
if j in targetIndices: continue
dist = poses[nextIndex].distanceTo(poses[j])
if dist < minDist:
minDist = dist
minDistIndex = j
nextIndex = minDistIndex
if minDistIndex in targetIndices: continue
targetIndices.append(minDistIndex)
cmds.select(d=1)
for i in targetIndices:
cmds.select(sels[i], add=1)
sels = cmds.ls(sl=1)
allSpans = 0
for sel in sels:
selShape = sgBFunction_dag.getShape(sel)
allSpans += cmds.getAttr(selShape + '.spans')
eachSpan = int(allSpans / len(sels))
for sel in sels:
cmds.rebuildCurve(sel, ch=0, s=eachSpan)
loftNode = cmds.createNode('loft')
cmds.setAttr(loftNode + '.close', close)
reverseNode = cmds.createNode('reverseSurface')
cmds.setAttr(reverseNode + '.direction', 3)
for i in range(len(sels)):
sel = sels[i]
selShape = sgBFunction_dag.getShape(sel)
cmds.connectAttr(selShape + '.worldSpace',
loftNode + '.inputCurve[%d]' % i)
cmds.connectAttr(loftNode + '.outputSurface',
reverseNode + '.inputSurface')
surf = cmds.createNode('nurbsSurface')
cmds.connectAttr(reverseNode + '.outputSurface', surf + '.create')
surfaceObj = cmds.listRelatives(surf, p=1, f=1)[0]
cmds.sets(surfaceObj, e=1, forceElement='initialShadingGroup')
return surfaceObj
def makeCurveDynamic(curveName):
dynamicHair = cmds.createNode('hairSystem')
nucleus = cmds.createNode('nucleus')
cmds.connectAttr('time1.outTime', dynamicHair + '.currentTime')
cmds.connectAttr('time1.outTime', nucleus + '.currentTime')
cmds.connectAttr(nucleus + '.startFrame', dynamicHair + '.startFrame')
cmds.connectAttr(nucleus + '.outputObjects[0]', dynamicHair + '.nextState')
cmds.connectAttr(dynamicHair + '.currentState', nucleus + '.inputActive[0]')
cmds.connectAttr(dynamicHair + '.startState', nucleus + '.inputActiveStart[0]')
cmds.rebuildCurve('Tentacle_curve', rt=0, spans=50, ch=0, replaceOriginal=1)
_follicle = cmds.createNode('follicle')
_nurbsCurve = cmds.createNode('nurbsCurve')
cmds.connectAttr(dynamicHair + '.outputHair[%s]' % (1), _follicle + '.currentPosition')
cmds.connectAttr(_follicle + '.outHair', dynamicHair + '.inputHair[%s]' % (1))
# connect follicle node to input curve
cmds.connectAttr('Tentacle_curve' + '.local', _follicle + '.startPosition')
cmds.connectAttr('Tentacle_curve' + '.worldMatrix[0]', _follicle + '.startPositionMatrix')
# connect follicle node to output curve
cmds.connectAttr(_follicle + '.outCurve', _nurbsCurve + '.create')
#create IK Spline handle from the current Curve
ikh, effector, curve = cmds.ikHandle(
name='{0}_ikh'.format('Tentacle_curve'), solver='ikSplineSolver',
startJoint='tentacle_jnt1', endEffector='tentacle_jnt11', parentCurve=False, autoCreateCurve = False,
simplifyCurve=False)
effector = cmds.rename(effector, '{0}_eff'.format('Tentacle_curve'))
curve = cmds.rename(curve, '{0}_crv'.format('Tentacle_curve'))
def _attach_to_curve(self, joints, side="lower", crvShape=None):
#rebuild curve first
cmds.rebuildCurve(crvShape,
rpo=1,
rt=0,
end=1,
kr=0,
kcp=0,
kep=1,
kt=0,
s=4,
d=3,
tol=0.01)
for i, joint in enumerate(joints):
num = ` i `.zfill(2)
crvInfo = cmds.createNode('pointOnCurveInfo',
n="%s_%s_%s_crvInfo" %
(self._side, side, num))
cmds.connectAttr("%s.worldSpace[0]" % crvShape,
"%s.inputCurve" % crvInfo,
f=True)
if i == 0:
param = i
else:
param = i + 1
cmds.setAttr("%s.parameter" % crvInfo, i / (self._zipJoints - 1))
cmds.connectAttr("%s.position" % crvInfo,
"%s.translate" % joint,
f=True)
def generateCurve(segments, name, namespace):
'''
This function generates a curve that passes through each item in the user selection.
It does so by querying xform to get position values of each item in the list, and then
appending them to a list to be used as CV points on the curve. The curve is then converted
to NURBS and rebuild, allowing it to be used with Hair dynamics.
'''
locators = cmds.ls(selection=True) #creates a list of the user selection
numOfLocators = len(locators)
locatorPositions = [] #an empty tuple for storing coordinates
for locator in locators:
pos = cmds.xform(
locator, q=True, ws=True,
t=True) #queries the xform coordinates for each item in the list
locatorPositions.append(tuple(pos)) #appends the coordinates to a list
outputCurve = cmds.curve(
bezier=True,
point=locatorPositions,
degree=numOfLocators - 1,
name=str(namespace) + 'curve#' +
str(name)) #uses the list of coordinates for CV points on the curve.
selectchild(outputCurve)
cmds.bezierCurveToNurbs(
) #the curves need to be converted to NURBS so that they can be rebuilt with uniform spans.
selectchild(outputCurve)
cmds.rebuildCurve(
spans=segments
) #this is because there needs to be a sufficient number of points on each curve for the attachCurve command to work later on.
return outputCurve
def crvTendon(curve,geo,precision=4,prefix='tendon'):
'''
'''
# rebuildCurve degree 1
baseCurve = mc.rebuildCurve(curve,ch=0,s=1,d=1,rpo=1,rt=0,end=1,kr=0,kcp=0,kep=1,kt=1)
# create cv locators
baseLocs = glTools.utils.curve.locatorCurve(baseCurve,prefix=prefix+'_baseCrv')
# generate geo constraint curve
geoCurve = mc.rebuildCurve(baseCurve,ch=1,s=precsion,d=1,rpo=0,rt=0,end=1,kr=0,kcp=0,kep=1,kt=1)
geoCurveLocs = glTools.utils.curve.locatorCurve(geoCurve,prefix=prefix+'_geoCrv')
# generate reference curve
refCurve = mc.rebuildCurve(baseCurve,ch=1,s=precsion,d=1,rpo=0,rt=0,end=1,kr=0,kcp=0,kep=1,kt=1)
refCurveInfo = mc.createNode('curveInfo',n=prefix+'_ref_curveInfo')
mc.connectAttr(refCurve+'.worldSpace[0]',refCurveInfo+'.inputCurve',f=True)
refCurveLocs = []
for i in range(precsion+1):
refNull = mc.group(em=True,n=prefix+'_ref'+str(i)+'_null')
mc.connectAttr(refCurveInfo+'.controlPoints['+str(i)+']',refNull+'.t')
refCurveLocs.append(refNull)
# Locator Constraints
for i in range(precsion+1):
mc.pointConstraint(refCurveLocs[i],geoCurveLocs[i])
mc.geometryConstraint(geo,geoCurveLocs[i])
# fitBspline
bSpline = mc.fitBspline(geoCurve,ch=1)
def build(curve=None, numOfJnts=10, name="brow"):
# soften input curve and delete history
curve = util.rename(curve, name=(name + "Low"), suffix="crv")[0]
curve = curveUtil.getShape(curve=curve)
cmds.rebuildCurve(curve,
ch=0,
rpo=1,
rt=0,
end=1,
kr=0,
kcp=1,
kep=1,
kt=0,
s=4,
d=3,
tol=0.01)[0]
cmds.makeIdentity(curve, apply=True, t=1, r=1, s=1)
# create the high res curve
curveHigh = cmds.rebuildCurve(curve,
ch=0,
rpo=0,
rt=0,
end=1,
kr=0,
kcp=0,
kep=1,
kt=0,
s=numOfJnts,
d=1,
tol=0.01)[0]
curveHigh = util.rename(curveHigh, name=(name + "High"), suffix="crv")[0]
return curve, curveHigh
def create(self, *args):
# field get
temp_joint.num = int(
mc.intField('jntNum', q=True, value=True))
temp_joint.name = str(
mc.textField('tempJntName', q=True, text=True))
stretch_joint.name = str(
mc.textField('stretchJntName', q=True, text=True))
# curve rebuild
name_list = mc.ls(sl=True)
curve.name = name_list[0]
# shape node name edit
mc.rename(curve.name, 'tempCurveName')
mc.rename('tempCurveName', curve.name)
mc.rebuildCurve(kr=0)
mc.select(d=True)
# short name
s.tn = '%s_%s' % (curve.name, temp_joint.name)
s.sn = '%s_%s' % (curve.name, stretch_joint.name)
# crate temp temp_joint
for i in range(temp_joint.num):
mc.joint(p=(0, 0, 0), n='%s%s' % (s.tn, str(i + 1)))
mc.select(d=True)
p = 'pointOnCurveInfo'
mc.createNode('%s' % p, n='%s_%s%s' % (p, s.tn, str(i + 1)))
node_name = '%s_%s%s' % (p, s.tn, str(i + 1))
mc.connectAttr(
'%sShape.local' % curve.name,
'%s.inputCurve' % node_name)
mc.setAttr(
'%s.parameter' % node_name,
(float(1) / (temp_joint.num - 1)) * i)
mc.connectAttr(
'%s.position' % node_name,
'%s%s.translate' % (s.tn, str(i + 1)))
for i in range(temp_joint.num):
mc.select('%s%s' % (s.tn, str(i + 1)), add=True)
mc.group(n='%s_grp' % s.tn)
mc.setAttr('.visibility', 0)
mc.select(d=True)
# aim constraint
for i in range(temp_joint.num - 1):
first = '%s%s' % (s.tn, str(i + 1))
second = '%s%s' % (s.tn, str(i + 2))
mc.aimConstraint(second, first)
# create stretch joint
for i in range(temp_joint.num):
mc.joint(p=(0, 0, 0), n='%s%s' % (s.sn, str(i + 1)))
for i in range(temp_joint.num):
first = '%s%s' % (s.tn, str(i + 1))
second = '%s%s' % (s.sn, str(i + 1))
mc.parentConstraint(first, second)
mc.select(d=True)
def makeCenterCurveFromCurves(crvs, rebuildSpanRate=1.0):
crvShapes = []
for crv in crvs:
crvShape = sgModelDag.getShape(crv)
if not crvShape: continue
crvShapes.append(crvShape)
lengthAll = 0.0
crvInfo = cmds.createNode('curveInfo')
for crvShape in crvShapes:
if not cmds.isConnected(crvShape + '.local', crvInfo + '.inputCurve'):
cmds.connectAttr(crvShape + '.local', crvInfo + '.inputCurve', f=1)
length = cmds.getAttr(crvInfo + '.arcLength')
lengthAll += length
cmds.delete(crvInfo)
lengthAverage = lengthAll / len(crvShapes)
rebuildSpans = int(lengthAverage * rebuildSpanRate)
for crvShape in crvShapes:
cmds.rebuildCurve(crvShape,
constructionHistory=0,
replaceOriginal=1,
rebuildType=0,
endKnots=1,
keepRange=0,
keepControlPoints=0,
keepEndPoints=1,
keepTangents=0,
s=rebuildSpans,
d=3,
tol=0.01)
fnNurbsCurve = om.MFnNurbsCurve(sgModelDag.getDagPath(crvShapes[0]))
numCVs = fnNurbsCurve.numCVs()
points = []
for i in range(numCVs):
points.append([0, 0, 0])
curve = cmds.curve(p=points, d=3)
for i in range(numCVs):
sumPoints = om.MVector(0, 0, 0)
for crvShape in crvShapes:
sumPoints += om.MVector(*cmds.xform(
crvShape + '.controlPoints[%d]' % i, q=1, ws=1, t=1))
averagePoints = sumPoints / len(crvShapes)
cmds.move(averagePoints.x,
averagePoints.y,
averagePoints.z,
curve + '.controlPoints[%d]' % i,
os=1)
return curve
def generateSpider(input_namespace, startTime, endTime):
'''
this function attaches all curves together, without replacing the orignal curves, using it as a motion path
for an animated spider. the animated spider is imported, and a simple expression links the U value of the motion
path to a rotation attribute on the spider rig, controlling its walk cycle. there is also a custom attribute on
the controller that appears with the spider rig, controlling the length of its steps as it walks.
'''
filePath = cmds.internalVar(
usd=True
) + 'SpiderGen/spider.ma' #the file path at which the spider model should exist
fileExists = cmds.file(filePath, q=True,
ex=True) #queries whether the file exists
if fileExists is True:
#selects all of the spiralling curves and connects them, providing a 'path' for the spiders movement.
cmds.select(str(input_namespace) + 'curve_spiral*')
curves = cmds.ls(selection=True)
path = cmds.attachCurve(curves,
n=str(input_namespace) + 'spiderpath',
rpo=False)
cmds.rebuildCurve(path, rt=3)
cmds.hide(path)
cmds.file(filePath, i=True)
#renames the spider and it's callable controllers so that they are using the current 'namespace'.
cmds.rename('SPIDER_RIG', str(input_namespace) + 'SPIDER_RIG')
cmds.rename('SCALE_HANDLE',
str(input_namespace) + 'CONTROLLER_ScaleMe')
cmds.rename('CONTROLLER', str(input_namespace) + 'CONTROLLER')
#selects the scale controller and the path and connects them to a path animation.
cmds.select(str(input_namespace) + 'CONTROLLER_ScaleMe', path)
cmds.pathAnimation(stu=startTime,
etu=endTime,
f=True,
fa='x',
ua='y',
name=str(input_namespace) + 'motionpath')
#creates a command that links the controller rotation to the 'length' of the animation.
command = str(input_namespace) + 'CONTROLLER.rotateX = ' + str(
input_namespace) + 'motionpath_uValue.output * ' + str(
(endTime - startTime) / 10)
#creates an expression of that command which is used for moving the legs as the spider moves around the path.
cmds.expression(name=str(input_namespace) + 'leg_movement',
alwaysEvaluate=True,
s=command)
else:
#an error window for if the file is not found
cmds.confirmDialog(
title='Error',
message='Spider Model not found, please ensure it located at: ' +
str(filePath),
button=['OK'],
cancelButton='OK')
return fileExists #so that the grouping functions know not to expect the spider model or motionpath
def doIt(self, args): # Initialise values self.name = "CaveNode" self.depthValue = 1.0 self.rebuild = False # Check if the arguments were parsed correctly if (self.parseArguments(args) == True): if self.rebuild == True: mc.rebuildCurve(self.curveName, kr=0, rt=4) self.redoIt()
def ctrlLayout(cls, crv, numOfCtrl, numOfSpan, increNum, *args):
# Initialize un value.
unNum = 0
reCrvOpt = cmds.checkBoxGrp(cls.uiWdgDic['preChkBoxGrp'],
q=True,
v1=True)
if reCrvOpt:
# Rebuild curve's control points uniformly for even joint distribution.
cmds.rebuildCurve(crv,
ch=1,
rpo=1,
rt=0,
end=1,
kr=0,
kcp=0,
kep=1,
kt=0,
s=numOfSpan,
d=3,
tol=0)
# Delete curve bind joint chain if exists it.
if cmds.objExists('%s_*_crv_bnd_jnt' % crv):
cmds.delete('%s_*_crv_bnd_jnt' % crv)
# Build joint chain hierarchy for orient joints.
cmds.select(cl=True)
cls.crvBndJntLs = []
for i in xrange(numOfCtrl):
crvBndJntPos = cmds.pointPosition('%s.un[%f]' % (crv, unNum),
w=True)
crvBndJnt = cmds.joint(p=crvBndJntPos,
n='%s_%d_crv_bnd_jnt' % (crv, i),
radius=10)
cls.crvBndJntLs.append(crvBndJnt)
unNum += increNum
cmds.CompleteCurrentTool()
# Orient curve bind joints
oriJntOpt = cmds.checkBoxGrp(cls.uiWdgDic['preChkBoxGrp'],
q=True,
v2=True)
if oriJntOpt:
cls.orientJntChain(cls.crvBndJntLs)
# Unparent curve bind joints.
for crvBndJnt in cls.crvBndJntLs:
if cmds.listRelatives(crvBndJnt, p=True):
cmds.parent(crvBndJnt, w=True)
else:
pass
return cls.crvBndJntLs
def doIt(self, args):
# Initialise values
self.depthValue = 1.0
self.widthValue = 1.0
self.name = "RiverNode"
self.curve = None
self.rebuild = False
if (self.parseArguments(args) == True):
if self.rebuild == True:
mc.rebuildCurve(self.curve, kr=0, rt=4)
self.redoIt()
def make_ikspline_stretchy(*args):
'''main function to make joints stretching'''
try:
#get data of IKfandle and joint
selected_ikHandle = cmds.ls(sl=True)[0]
ikJoints = cmds.ikHandle(selected_ikHandle, q=True, jl=True)
numberOfBones = len(ikJoints)
ikCurve = cmds.ikHandle(selected_ikHandle, q=True, c=True)
cmds.rebuildCurve(ikCurve, rt=0, kr=0, d=4, s=1)
curveInfo = cmds.arclen(ikCurve, ch=True)
#create Node of length
multiDivArclen = cmds.shadingNode('multiplyDivide', asUtility=True)
cmds.setAttr(multiDivArclen + '.operation', 2)
cmds.addAttr(multiDivArclen, ln="stretchy", at='double', dv=0, k=True)
#connect curve length
cmds.connectAttr(curveInfo + '.arcLength',
multiDivArclen + '.input1X',
f=True)
cmds.connectAttr(multiDivArclen + '.outputX',
multiDivArclen + '.stretchy',
f=True)
input2X = cmds.getAttr(multiDivArclen + '.input1X')
cmds.setAttr(multiDivArclen + '.input2X',
input2X) #multDivArclen.OutputX == 1
#create Node of thickness
multiDivThickness = cmds.shadingNode('multiplyDivide', asUtility=True)
cmds.setAttr(multiDivThickness + '.operation', 3)
cmds.connectAttr(multiDivArclen + '.stretchy',
multiDivThickness + '.input1X',
f=True)
cmds.setAttr(multiDivThickness + '.input2X', -0.5)
#cmds.addAttr( multiDivArclen, ln="stretchy", at='double', dv=0, k=True)
cmds.cluster(ikCurve + '.cv[3]', n="cluster_end")
cmds.cluster(ikCurve + '.cv[0]',
ikCurve + '.cv[1]',
ikCurve + '.cv[2]',
n="cluster_root")
for i in range(numberOfBones):
cmds.connectAttr(multiDivArclen + '.stretchy',
ikJoints[i] + '.scaleX',
f=True)
if i > 0 and i < numberOfBones:
cmds.connectAttr(multiDivThickness + '.outputX',
ikJoints[i] + '.scaleY',
f=True)
cmds.connectAttr(multiDivThickness + '.outputX',
ikJoints[i] + '.scaleZ',
f=True)
#cmds.connectAttr( outMultDiv+'.outputX', item+'.scaleX', f=True)
except:
print "no curve selected"
def rebuildCrv(_depth):
cm.rebuildCurve(cm.ls(sl=True),
ch=True,
rpo=True,
rt=False,
end=True,
kr=False,
kcp=False,
kep=True,
kt=False,
s=_depth,
tol=0.01)
def build( curve=None, numOfJnts=10, name="brow" ): # soften input curve and delete history curve = util.rename(curve, name=(name+"Low"), suffix="crv")[0] curve = curveUtil.getShape( curve=curve ) cmds.rebuildCurve(curve, ch=0, rpo=1, rt=0, end=1, kr=0, kcp=1, kep=1, kt=0, s=4, d=3, tol=0.01 )[0] cmds.makeIdentity(curve, apply=True, t=1, r=1, s=1 ) # create the high res curve curveHigh = cmds.rebuildCurve(curve, ch=0, rpo=0, rt=0, end=1, kr=0, kcp=0, kep=1, kt=0, s=numOfJnts, d=1, tol=0.01 )[0] curveHigh = util.rename(curveHigh, name=(name+"High"), suffix="crv")[0] return curve, curveHigh
def buidleUpCurve(startOBJ, endObj, upOBJ):
startPosition = mc.xform(startOBJ, q=True, ws=True, t=True)
endPosition = mc.xform(endObj, q=True, ws=True, t=True)
upPosition = mc.xform(upOBJ, q=True, ws=True, t=True)
offsetVector = (upPosition[0] - startPosition[0]) * 0.25, (upPosition[1] - startPosition[1]) * 0.25, (upPosition[2] - startPosition[2]) * 0.25
startPosition = (startPosition[0] + offsetVector[0]), (startPosition[1] + offsetVector[1]), (startPosition[2] + offsetVector[2])
endPosition = (endPosition[0] + offsetVector[0]), (endPosition[1] + offsetVector[1]), (endPosition[2] + offsetVector[2])
Curve = mc.curve(d=1, p=(startPosition, endPosition))
mc.rebuildCurve(Curve, ch=0, s=3, d=3)
return Curve
def buidleUpCurve(startOBJ, endObj, upOBJ):
startPosition = mc.xform(startOBJ, q=True, ws=True, t=True)
endPosition = mc.xform(endObj, q=True, ws=True, t=True)
upPosition = mc.xform(upOBJ, q=True, ws=True, t=True)
offsetVector = (upPosition[0] - startPosition[0]) * 0.25, (upPosition[1] - startPosition[1]) * 0.25, (upPosition[2] - startPosition[2]) * 0.25
startPosition = (startPosition[0] + offsetVector[0]), (startPosition[1] + offsetVector[1]), (startPosition[2] + offsetVector[2])
endPosition = (endPosition[0] + offsetVector[0]), (endPosition[1] + offsetVector[1]), (endPosition[2] + offsetVector[2])
Curve = mc.curve(d=1, p=(startPosition, endPosition))
mc.rebuildCurve(Curve, ch=0, s=3, d=3)
return Curve
def doIt(self, args):
# Initialise values
self.name = "SculptLayerNode"
self.sculptStrength = 1.0
self.curveOffset = 1.1
self.maxProjection = 1000
self.rebuild = False
self.parseArguments(args)
# Check if the arguments were parsed correctly
if self.rebuild == True:
mc.rebuildCurve(self.curveMask, kr=0, rt=4)
self.redoIt()
def RebuildWithNCVs (self,numberOfCvs,curve ): if cmds.getAttr (curve+".form")==2: if numberOfCvs >= 3: curve = cmds.rebuildCurve(curve, spans = numberOfCvs,keepRange = 2)[0] return curve else: return None else: if numberOfCvs >= 4: curve = cmds.rebuildCurve(curve, spans = numberOfCvs - 3,keepRange = 2)[0] return curve else: return None
def createInterpolatedCurve(curve1, curve2, v):
interpolatedCurve = mc.duplicate(curve1, rr=True, rc=True)[0]
for shape in mc.listRelatives(curve2,shapes=True,fullPath=True):
cvList = (mc.ls([shape+'.cv[*]'],flatten=True))
mc.rebuildCurve(interpolatedCurve, ch=0, rpo=1, rt= 0, end = 1, kr = 0, kcp = 0, kep = 1, kt = 0, s = len(cvList)-3, d = 3, tol = 0)
for i in range(len(cvList)):
pos1 = mc.pointPosition('%s.cv[%i]' % (interpolatedCurve,i))
pos2 = mc.pointPosition('%s.cv[%i]' % (curve2,i))
newPos = ((pos2[0]-pos1[0])*v+pos1[0], (pos2[1]-pos1[1])*v+pos1[1], (pos2[2]-pos1[2])*v+pos1[2])
mc.move(newPos[0], newPos[1], newPos[2], '%s.cv[%i]' % (interpolatedCurve,i), a=True)
return interpolatedCurve
def preparecurve(crv, crvtrm, frac):
cmds.polyToCurve(f=3, dg=3, n='tmpcrv')
cmds.duplicate('tmpcrv', n=crvtrm)
cmds.delete('tmpcrv')
cmds.rebuildCurve(crv,
s=frac,
kr=2,
d=3,
tol=0.01,
rt=0,
kep=1,
kt=0,
kcp=0,
end=1)
def makeCenterCurve( crvs, rebuildSpanRate= 1.0 ):
crvShapes = []
for crv in crvs:
crvShape = getShape( crv )
if not crvShape: continue
crvShapes.append( crvShape )
lengthAll = 0.0
crvInfo = cmds.createNode( 'curveInfo' )
for crvShape in crvShapes:
if not cmds.isConnected( crvShape+'.local', crvInfo+'.inputCurve' ):
cmds.connectAttr( crvShape+'.local', crvInfo+'.inputCurve', f=1 )
length = cmds.getAttr( crvInfo+'.arcLength' )
lengthAll += length
cmds.delete( crvInfo )
lengthAverage = lengthAll / len( crvShapes )
rebuildSpans = int( lengthAverage * rebuildSpanRate )
for crvShape in crvShapes:
cmds.rebuildCurve( crvShape, constructionHistory=0,
replaceOriginal=1,
rebuildType=0,
endKnots=1,
keepRange=0,
keepControlPoints=0,
keepEndPoints=1,
keepTangents=0,
s=rebuildSpans, d=3, tol=0.01 )
fnNurbsCurve = om.MFnNurbsCurve( getDagPath( crvShapes[0] ) )
numCVs = fnNurbsCurve.numCVs()
points = []
for i in range( numCVs ):
points.append( [0,0,0] )
curve = cmds.curve( p=points, d=3 )
for i in range( numCVs ):
sumPoints = om.MVector(0,0,0)
for crvShape in crvShapes:
sumPoints += om.MVector( *cmds.xform( crvShape+'.controlPoints[%d]' % i, q=1, os=1, t=1 ) )
averagePoints = sumPoints / len( crvShapes )
cmds.move( averagePoints.x, averagePoints.y, averagePoints.z, curve+'.controlPoints[%d]' % i, os=1 )
return curve
def CurveShapes(self):
getSel=self.selection_grab()
if getSel:
pass
else:
return
getNames=cmds.ls(sl=1, fl=1)
if ".e[" not in str(getNames[0]):
print "selection needs to be continuous edges of two seperate polygon objects: first select one, then continuous edge and then the continuous edge on a seperate poly object that you want to deform it along"
return
else:
pass
getFirstGrp = getNames[0].split(".")[0]
getSecondGrp = getNames[-1:][0].split(".")[0]
if getFirstGrp == getSecondGrp:
print "Only one poly object has been detected. Select one object and it's continuous edge and then select another object and select it's continuous edge for the first object to align to."
return
else:
pass
firstList=[(each) for each in getNames if each.split(".")[0]==getFirstGrp]
secondList=[(each) for each in getNames if each.split(".")[0]==getSecondGrp]
'''create childfirst curve'''
cmds.select(firstList)
cmds.CreateCurveFromPoly()
getFirstCurve=cmds.ls(sl=1, fl=1)
'''get cv total of curve'''
getFirstCurveInfo=cmds.ls(sl=1, fl=1)
numberCV=str(pm.PyNode(getFirstCurveInfo[0]).numCVs())
cmds.delete(getFirstCurve[0], ch=1)
'''wrap child mesh to curve'''
cmds.select(cmds.ls(getFirstGrp)[0], r=1)
cmds.wire(w=getFirstCurve[0], gw=0, en=1.000000, ce=0.000000, li=0.000000, dds=[(0, 500)] )
'''create parent curve'''
cmds.select(secondList)
cmds.CreateCurveFromPoly()
getSecondCurve=cmds.ls(sl=1, fl=1)
getSecondCurveInfo=cmds.ls(sl=1, fl=1)
'''rebuilt curve to match first curve built'''
cmds.rebuildCurve(getSecondCurve[0], getFirstCurve[0], rt=2 )
getSecondCurve=cmds.ls(sl=1, fl=1)
getSecondCurveInfo=cmds.ls(sl=1, fl=1)
cmds.delete(getSecondCurve[0], ch=1)
'''wrap parent curve to parent mesh'''
cmds.select(getSecondCurve[0], r=1)
cmds.select(cmds.ls(getSecondGrp)[0], add=1)
cmds.CreateWrap()
'''blend child curve to parent curve'''
cmds.blendShape(getSecondCurve[0], getFirstCurve[0],w=(0, 1.0))
return getFirstGrp, getSecondGrp
def matchCurve(source, destination, *args, **kwargs):
# Source
if cmds.objectType(source) == 'transform':
try:
source = cmds.listRelatives(source, shapes=True)[0]
except RuntimeError:
raise TypeError('Source must be a nurbs curve.')
sourceMin = cmds.getAttr('{}.minMaxValue.minValue'.format(source))
sourceMax = cmds.getAttr('{}.minMaxValue.maxValue'.format(source))
sourceSpans = cmds.getAttr('{}.spans'.format(source))
sourceDegree = cmds.getAttr('{}.degree'.format(source))
sourceCVs = cmds.ls('{}.cv[:]'.format(source), fl=True)
# Destination
if cmds.objectType(destination) == 'transform':
try:
destination = cmds.listRelatives(destination, shapes=True)[0]
except RuntimeError:
raise TypeError('Source must be a nurbs curve.')
destinationMin = cmds.getAttr(
'{}.minMaxValue.minValue'.format(destination))
destinationMax = cmds.getAttr(
'{}.minMaxValue.maxValue'.format(destination))
destinationSpans = cmds.getAttr('{}.spans'.format(destination))
destinationDegree = cmds.getAttr('{}.degree'.format(destination))
# Rebuild
cmds.rebuildCurve(destination,
rebuildType=0,
spans=sourceSpans,
degree=sourceDegree,
ch=False)
destinationCVs = cmds.ls('{}.cv[:]'.format(destination), fl=True)
i = 0
for cv in destinationCVs:
position = cmds.xform(sourceCVs[i], q=True, ws=True, t=True)
cmds.xform(cv, ws=True, t=position)
i += 1
cmds.rebuildCurve(destination,
rebuildType=0,
spans=destinationSpans,
degree=destinationDegree,
ch=False)
return
def generateSpider(input_namespace, startTime, endTime):
'''
this function attaches all curves together, without replacing the orignal curves, using it as a motion path
for an animated spider. the animated spider is imported, and a simple expression links the U value of the motion
path to a rotation attribute on the spider rig, controlling its walk cycle. there is also a custom attribute on
the controller that appears with the spider rig, controlling the length of its steps as it walks.
'''
filePath = cmds.internalVar(usd=True) + 'SpiderGen/spider.ma'
fileExists = cmds.file(filePath, q=True, ex=True)
if fileExists is True:
cmds.select(str(input_namespace) + 'curve_spiral*')
curves = cmds.ls(selection=True)
path = cmds.attachCurve(curves,
n=str(input_namespace) + 'spiderpath',
rpo=False)
cmds.rebuildCurve(path, rt=3)
cmds.hide(path)
cmds.file(filePath, i=True)
cmds.rename('SPIDER_RIG', str(input_namespace) + 'SPIDER_RIG')
cmds.rename('SCALE_HANDLE',
str(input_namespace) + 'CONTROLLER_ScaleMe')
cmds.rename('CONTROLLER', str(input_namespace) + 'CONTROLLER')
cmds.select(str(input_namespace) + 'CONTROLLER_ScaleMe', path)
cmds.pathAnimation(stu=startTime,
etu=endTime,
f=True,
fa='x',
ua='y',
name=str(input_namespace) + 'motionpath')
command = str(input_namespace) + 'CONTROLLER.rotateX = ' + str(
input_namespace) + 'motionpath_uValue.output * ' + str(
(endTime - startTime) / 10)
cmds.expression(name=str(input_namespace) + 'leg_movement',
alwaysEvaluate=True,
s=command)
else:
cmds.confirmDialog(
title='Error',
message='Spider Model not found, please ensure it located at: ' +
str(filePath),
button=['OK'],
cancelButton='OK')
return fileExists
def rebuild_crv(self):
if_rebuild = self.if_rebuild_cb.isChecked()
if if_rebuild:
spans = self.crv_points_num_sb.value()
mc.rebuildCurve(self._crv_name,
rpo=1,
ch=1,
end=1,
kr=0,
kcp=0,
kt=0,
d=3,
tol=0.01,
rt=0,
s=spans)
def convertMotionToCurve(target,start=False,end=False,accuracy=100,increment=1):
if not start:
start = cmds.playbackOptions(q=1,min=1)
if not end:
end = cmds.playbackOptions(q=1,max=1)
cmds.select(target)
motionTrail = cmds.snapshot(motionTrail=1,startTime=start,endTime=end,increment=increment,update='animCurve')
# motionTrail[0] = shape, [1] = xform
pts = cmds.getAttr(motionTrail[0]+'.pts')
ptsFix = [f[:-1] for f in pts]
# make duplicate curve
newCurve = cmds.curve(d=1,ws=1,p=ptsFix)
cmds.rebuildCurve(newCurve,rt=0,s=accuracy,kr=0)
cmds.delete(motionTrail)
return newCurve
def rebuildByMinMaxSpans(curves, minSpans, maxSpans):
import sgBFunction_dag
sels = sgBFunction_dag.getChildrenShapeExists(curves)
lengthList = []
minLength = 10000000.0
maxLength = 0.0
targetCurves = []
for sel in sels:
selShape = sgBFunction_dag.getShape(sel)
if not selShape: continue
if not cmds.nodeType(selShape) == 'nurbsCurve': continue
fnCurve = om.MFnNurbsCurve(sgBFunction_dag.getMDagPath(selShape))
curveLength = fnCurve.length()
if curveLength < minLength:
minLength = curveLength
if curveLength > maxLength:
maxLength = curveLength
targetCurves.append(sel)
lengthList.append(fnCurve.length())
diffSpans = maxSpans - minSpans
diffLength = maxLength - minLength
for i in range(len(targetCurves)):
lengthRate = (lengthList[i] - minLength) / diffLength
spansRate = lengthRate * diffSpans
spans = spansRate + minSpans
cmds.rebuildCurve(targetCurves[i],
rpo=1,
rt=0,
end=1,
kr=2,
kcp=0,
kep=1,
kt=1,
s=spans,
d=3,
tol=0.01)
def trimFromBeginning(inputCurves, shortestLength): newCurves = [] for obj in inputCurves: parent = mc.listRelatives(obj, parent=True) r = random.random()*(1-shortestLength) obj = mc.rebuildCurve(obj, ch=0, rpo=1, rt=0, end=1, kr=0, kcp=1, kep=1, kt=0, s = 10, d = 3, tol = 0)[0] curves = mc.detachCurve( '%s.u[%f]' % (obj, r), ch=0, cos=True, rpo=1 ) mc.delete(curves[-1]) mc.rebuildCurve(curves[0], ch=1, rpo=1, rt=0, end=1, kr=0, kcp=0, kep=1, kt= 0, s = 0, d = 3, tol = 0) curves[0] = mc.rename(curves[0], obj) if parent: curves[0] = mc.parent(curves[0], parent)[0] newCurves.append(curves[0]) return newCurves
def makeHairCurve(hullCurves, u, twist=0.0):
'''
Create a curve through a series of hull curves by u parameter
'''
p = []
i = 0
for hull in hullCurves:
p.append(mc.pointPosition('%s.u[%f]' % (hull,
(u + (twist * i)) % 1.0)))
i += 1
curve = mc.curve(p=p, d=3)
curve = mc.rebuildCurve(curve,
rpo=1,
rt=0,
end=1,
kr=0,
kcp=1,
kep=1,
kt=0,
s=4,
d=3,
tol=0.000129167)
mc.xform(curve, centerPivots=True)
return curve
def build(startPt=[-1,0,0],endPt=[1,0,0],attachments=2,outputMesh=False,radius=0.2,prefix='tendon'): ''' ''' # # Get points startPt = glTools.utils.base.getMPoint(startPt) endPt = glTools.utils.base.getMPoint(endPt) # Get offset offsetVec = endPt - startPt offsetInc = 1.0/(attachments-1) # Get Point List ptList = [] for i in range(attachments-1): pt = startPt + (offsetVec * offsetInc) ptList.append(pt[0],pt[1],pt[2]) # Build tendon curve base tendonCrv = glTools.utils.curve.createFromPointList(ptList,1,prefix) # Generate tendon curve locators tendonLocList = glTools.utils.curve.locatorCurve(tendonCrv,freeze=False,prefix=prefix) # Rebuild tendon curve if attachments > 2: tendonRebuild = mc.rebuildCurve(tendonCrv,ch=1,rpo=1,rt=0,end=1,kr=0,kcp=0,kep=1,kt=1,s=0,d=3,tol=0.01)
def edgeLoopCrv(meshEdgeList,rebuild=False,rebuildSpans=0,form=2,keepHistory=True,prefix=''):
'''
Generate a curve from a mesh edge loop.
@param meshEdgeList: List of mesh edges to generate curve from
@type meshEdgeList: list
@param rebuild: Rebuild curve to degree 3
@type rebuild: bool
@param rebuildSpans: Number of spans to rebuild the resulting curve to
@type rebuildSpans: int
@param form: Form of the resulting curve. 0 = Open, 1 = Periodic, 2 = Best Guess.
@type form: str
@param keepHistory: Maintain construction history
@type keepHistory: bool
@param prefix: Name prefix for newly created nodes
@type prefix: str
'''
# Check edge list
if not meshEdgeList:
raise Exception('Invalid mesh edge list provided!!')
meshEdgeList = mc.ls(meshEdgeList,fl=True)
# Check prefix
if not prefix: prefix = glTools.utils.stringUtils.stripSuffix(meshEdgeList[0].split('.')[0])
# Convert edge selection to nurbs curve
crvDegree = 1
if rebuild: crvDegree = 3
curve = mc.polyToCurve(ch=keepHistory,form=form,degree=crvDegree)[0]
# Rebuild as degree 3
if rebuild and rebuildSpans:
curve = mc.rebuildCurve(curve,ch=keepHistory,rpo=1,rt=0,end=1,kr=0,kcp=1,kep=1,kt=1,s=rebuildSpans,d=3,tol=0.01)[0]
# Rename curve
curve = mc.rename(curve,prefix+'_curve')
# Return result
return curve
def rebuildCurveWithHistory(crv,
degree=None,
spans=None,
range=0,
keepCVs=False,
keepEnds=False,
fitRebuild=True):
"""
@param crv: Curve to rebuild
@type crv: str
@param degree: Rebuild degree. If None, keep original.
@type degree: str
@param spans: Number of rebuild spans. If None, keep original.
@type spans: str
@param range: Parameterization for the curve. 0 = 0-1, 1 = original, 2 = 0-Nspans
@type range: int
@param keepCVs: Keep all original CVs.
@type keepCVs: bool
@param keepEnds: Keep end points.
@type keepEnds: bool
@param fitRebuild: Fit rebuild
@type fitRebuild: bool
"""
# Check Curve
if not isCurve(crv): raise Exception('Object "' + crv + '" is not a valid curve!')
# Get Shape
crvShape = cmds.ls(cmds.listRelatives(crv, s=True, ni=True) or [], type='nurbsCurve') or []
if not crvShape: raise Exception('Unable to determine curve shape for "' + crv + '"!')
crvShape = crvShape[0]
# Check Inputs
if spans == 0: spans = 0
if degree == None: degree = cmds.getAttr(crvShape + '.degree')
# Get Input Shape
try:
glTools.utils.shape.findInputShape(crvShape)
except:
glTools.utils.shape.createIntermediate(crvShape)
# Rebuild Curve
rebuildCrv = cmds.rebuildCurve(crvShape,
ch=True,
rpo=True,
rebuildType=0, # Uniform
endKnots=1, # Multiple
keepRange=range,
keepControlPoints=keepCVs,
keepEndPoints=keepEnds,
keepTangents=False,
spans=spans,
degree=degree)
# Rename Node
rebuildCrv = cmds.rename(rebuildCrv, crv.replace('_crv', '') + '_rebuildCurve')
# Return Result
return rebuildCrv[1]
def initializeRibbonSpine(startJoint,endJoint,numJoints,spans,prefix='cn_spine'):
'''
'''
# ==========
# - Checks -
# ==========
if not mc.objExists(startJoint):
raise Exception('Start joint "'+startJoint+'" does not exist!')
if not mc.objExists(endJoint):
raise Exception('End joint "'+endJoint+'" does not exist!')
# =====================
# - Build Spine Curve -
# =====================
# Get Spine Joint List
spineJnts = glTools.utils.joint.getJointList(startJoint,endJoint)
# Build Spine Locators
locList = []
for i in range(len(spineJnts)):
pt = glTools.utils.base.getPosition(spineJnts[i])
strInd = glTools.utils.stringUtils.alphaIndex(i)
loc = mc.spaceLocator(p=(0,0,0),n=prefix+strInd+'_loc')[0]
mc.move(pt[0],pt[1],pt[2],loc,ws=True,a=True)
mc.parent(loc,spineJnts[i])
locList.append(loc)
# Build Spine Curve
spineCurve = glTools.utils.curve.createFromLocators(locList,degree=1,attach=True,prefix=prefix)
spineCurveShape = mc.listRelatives(spineCurve,s=True,pa=True)[0]
glTools.utils.shape.createIntermediate(spineCurveShape)
# Rebuild Spine Curve
if not spans: spans = len(spineJnts) - 1
rebuildCrv = mc.rebuildCurve(spineCurve,ch=1,rpo=1,rt=0,end=1,kr=0,kcp=0,kep=1,kt=1,s=spans,d=3,tol=0)
rebuildCrv = mc.rename(rebuildCrv[1],prefix+'A_rebuildCurve')
# ================================
# - Attach Joints to Spine Curve -
# ================================
ribbonJoints = []
inc = 1.0 / (numJoints - 1)
for i in range(numJoints):
mc.select(cl=1)
strInd = glTools.utils.stringUtils.alphaIndex(i)
joint = mc.joint(n=prefix+'Ribbon'+strInd+'_jnt')
glTools.utils.attach.attachToCurve(spineCurve,joint,uValue=inc*i,orient=False,prefix=prefix+'Ribbon'+strInd)
ribbonJoints.append(joint)
# =================
# - Return Result -
# =================
return ribbonJoints
def snap_root_CV_to_mesh(*args):
'''
Snap root CV of curve to closest point on mesh for selected mesh
and curves which are currently selected.
'''
initialSelection = cmds.ls(sl=True)
scalpMesh = cmds.ls(sl=True, dag=True, type='mesh')[0]
curveSet = cmds.listRelatives(cmds.ls(sl=True, dag=True, type='nurbsCurve'), parent=True)
CPOM_A = cmds.createNode('closestPointOnMesh')
CPOM_B = cmds.createNode('closestPointOnMesh')
cmds.connectAttr(scalpMesh+'.outMesh', CPOM_A+'.inMesh')
cmds.connectAttr(scalpMesh+'.outMesh', CPOM_B+'.inMesh')
for CRV in curveSet:
#CRV = curveSet[0]
curveLen = int(cmds.arclen(CRV)/3+4)
rebuildCRV = cmds.rebuildCurve(CRV, d=3, spans=curveLen)
#print CRV
CRVroot = cmds.pointPosition(CRV+'.cv[0]', world=True)
CRVvec = cmds.pointPosition(CRV+'.cv[2]', world=True)
abc = ['X', 'Y', 'Z']
for x in abc:
cmds.setAttr(CPOM_A+'.inPosition'+x, CRVroot[abc.index(x)])
cmds.setAttr(CPOM_B+'.inPosition'+x, CRVvec[abc.index(x)])
CPOM_rootPOS = cmds.getAttr(CPOM_A+'.position')[0]
CPOM_vecPOS = cmds.getAttr(CPOM_B+'.position')[0]
#print CRV, CRVroot, CPOM_POS
cmds.reverseCurve(CRV)
CRVcvs = cmds.getAttr(CRV+'.spans')
#print CRV, curveLen, CRVcvs, rebuildCRV
cmds.delete(CRV, constructionHistory=True)
CRVshape = cmds.listRelatives(CRV, children=True)
cmds.curve(CRVshape, a=True, ws=True, p=[CPOM_vecPOS, CPOM_rootPOS])#[(0,0,0) for x in range(CRVcvs/5)])
cmds.reverseCurve(CRV)
cmds.rebuildCurve(CRV, degree=3, spans=CRVcvs+2)
cmds.smoothCurve(CRV+'.cv[*]', smoothness=10)
#break
cmds.select(initialSelection)
def point2Curve(spans) :
sels = mc.ls(sl = True)
if len(sels) == 2 :
point1 = sels[0]
point2 = sels[1]
pos1 = mc.xform(point1, q = True, ws = True, t = True)
pos2 = mc.xform(point2, q = True, ws = True, t = True)
result = mc.curve(d = 1, p=[pos1, pos2], k=[0,1] )
mc.rebuildCurve(result, rpo = 1, rt = 0, end = 1, kr = 0, kcp = 0, kep = 1, kt = 0, s = spans, d = 3, tol = 0.0001)
mc.select(result)
mm.eval('CenterPivot')
return result
def makeCurveFromPoints(p, close=True): curve = mc.curve(p=p, d=3) if close: curve = mc.closeCurve(curve, ps=0, rpo=1, bb=0.5, bki=0, p=0.1) curve = mc.rebuildCurve(curve, rpo=1, rt=0, end=1, kr=0, kcp=1, kep=1, kt=0, s=4, d=3, tol=0.000129167) mc.xform(curve, centerPivots=True) return curve
def rebuildByLength( rate ):
sels = cmds.ls( sl=1 )
info = cmds.createNode( 'curveInfo' )
for sel in sels:
if cmds.nodeType( sel ) == 'transform':
sel = cmds.listRelatives( sel, s=1 )[0]
if not cmds.isConnected( sel+'.local', info+'.inputCurve' ):
cmds.connectAttr( sel+'.local', info+'.inputCurve', f=1 )
length = cmds.getAttr( info+'.arcLength' )
cmds.rebuildCurve( sel, ch=0, rpo=1, rt=0, end=1, kr=0, kcp=0, kep=0, kt=0, s=length*rate, tol=0.01 )
cmds.delete( info )
cmds.select( sels )
def rebuild(self, basePointsCout = 5, keep = False): """custom rebuild curve, creating an intermidate curve for the process""" pnts = [] for p in range( basePointsCout ): param = float( p ) / float( basePointsCout - 1 ) pnts.append( self.pointAtParam( param ) ) cur = mc.curve( ep = pnts, d = 3 ) finalcur = mc.rebuildCurve( cur, ch = 1, rpo = not (keep), rt = 0, end = 1, kr = 0, kcp = 0, kep = 0, kt = 0, s = 2, d = 3, tol = 0.01 )[0] return Curve( finalcur )
def addJntsOnSurfIntersection(surf1, surf2, jntsNum):
'''
Places jnts along intersection curve between surf1 and surf2
naming convention based on surf1
'''
# intersect surfaces
crvGrp, intNode = mc.intersect(surf1, surf2, fs=True, ch=True, o=True, cos=False)[:2]
intNode = mc.rename(intNode, surf1+'_ints')
crvGrp = mc.rename(crvGrp, surf1+'_ints_crv_grp')
crv = mc.listRelatives(crvGrp, c=True)[0]
crv = mc.rename(crv, surf1+'_ints_crv')
# rebuild curve to jntNum spans
rbdCrv, rbdNode = mc.rebuildCurve(crv, ch=True, o=True, rpo=False, spans=jntsNum, rt=0, kr=2, n=crv+'_rbd_crv')
rbdNode = mc.rename(rbdNode, crv+'_rbd')
# offset curve to control size of eye hole
offsetCrv, offsetNode = mc.offsetCurve(rbdCrv, ch=True, distance=0, o=True, ugn=0, n=crv+'_offset_crv')
offsetNode = mc.rename(offsetNode, crv+'_offset')
locs = []
locName = '_'.join(surf1.split('_')[:2])
# attach locators to intersection curve
for locId in range(jntsNum):
loc = mc.spaceLocator(n=locName+'_loc_%d' % locId)[0]
rt.attachToMotionPath(offsetCrv, locId, loc, fm=False)
mc.setAttr(loc+'.localScale', 0.05, 0.05, 0.05)
locs.append(loc)
# normal constraint to surf1
for loc in locs:
mc.normalConstraint(surf2, loc, aim=(1,0,0))
jnts = []
# add joints under locators
for loc in locs:
mc.select(cl=True)
jnt = mc.joint(n=loc.replace('_loc_','_jnt_'))
rt.parentSnap(jnt, loc)
mc.setAttr(jnt+'.jointOrient', 0,0,0)
jnts.append(jnt)
# groups
grp = mc.group(crvGrp, offsetCrv, rbdCrv, locs, n=surf1+'_intersect_loc_grp')
# create offset attribute
mc.addAttr(grp, ln='collideOffset', at='double', dv=0, k=True)
offsetPlug = cn.create_multDoubleLinear(grp+'.collideOffset', -1)
mc.connectAttr(offsetPlug, offsetNode+'.distance', f=True)
# connect debug
rt.connectVisibilityToggle(offsetCrv, grp, 'offsetCrv', False)
rt.connectVisibilityToggle(rbdCrv, grp, 'rebuildCrv', False)
rt.connectVisibilityToggle(crvGrp, grp, 'intersectCrv', False)
rt.connectVisibilityToggle(locs, grp, 'crvLocs', False)
rt.connectVisibilityToggle(jnts, grp, 'crvJnts', False)
def addHairDeformToBag( bag, controller ):
startVtxIndex = 40
endVtxIndex = 105
pBag = cmds.listRelatives( bag, p=1,f=1 )[0]
cons = cmds.listConnections( pBag, type='multMatrixDecompose',s=1, d=0 )
if not cons: return None
mmdc = cons[0]
cons = cmds.listConnections( mmdc+'.i[0]', s=1, d=0 )
if not cons: return None
constObj = cons[0]
constObj
cmds.select( constObj )
jnt = cmds.joint()
startPos = cmds.xform( bag+'.vtx[%d]' % startVtxIndex, q=1, ws=1, t=1 )
endPos = cmds.xform( bag+'.vtx[%d]' % endVtxIndex, q=1, ws=1, t=1 )
crv = cmds.curve( p=[startPos, endPos], d=1 )
cmds.rebuildCurve( crv, ch=0, d=3, s=7 )
cmds.skinCluster( [crv, jnt] )
import sgRigCurve
hairSystem = sgRigCurve.makeDynamicCurveKeepSrc( [crv], 'dynamic_' )
sgRigAttribute.connectHairAttribute( controller, hairSystem )
cmds.select( crv )
handle, jnts = sgRigCurve.createJointOnEachCurve( crv, 7, False )
topJnt = jnts[0]
cmds.parent( handle, topJnt, constObj )
jnts.append( bag )
cmds.parent( bag, w=1 )
cmds.skinCluster( jnts )
def addWobbleDeform( mainCtl, targets ):
import math
if not type( targets ) in [ type(()), type([]) ]:
targets = [targets]
failedTargets = []
for target in targets:
vtxList = cmds.ls( target+'.vtx[*]', fl=1 )
topVtxPos = [0,0,0]
bottomVtxPos = [0,10000,0]
for vtx in vtxList:
pos = cmds.xform( vtx, q=1, ws=1, t=1 )
if math.fabs( pos[1] ) > math.fabs( topVtxPos[1] ):
topVtxPos = pos
if math.fabs( pos[1] ) < math.fabs( bottomVtxPos[1] ):
bottomVtxPos = pos
if( (topVtxPos[0]-bottomVtxPos[0])**2 + (topVtxPos[1]-bottomVtxPos[1])**2 + (topVtxPos[2]-bottomVtxPos[2])**2 ) < 0.001:
failedTargets.append( target )
continue
crv = cmds.curve( p=[bottomVtxPos,topVtxPos], d=1 )
cmds.rebuildCurve( crv, ch=0, d=3, s=10 )
sgRigCurve.createSgWobbleCurve( crv, False )
copyAttrs = [ 'globalEnvelope', 'globalTimeMult', 'globalOffset' ]
for copyAttr in copyAttrs:
sgRigAttribute.copyAttribute( crv+'.'+copyAttr, mainCtl )
cmds.connectAttr( mainCtl+'.'+copyAttr, crv+'.'+copyAttr )
wire = cmds.deformer( target, type='wire' )[0]
crvOrig = sgModelDag.getOrigShape( crv )
crvShape= sgModelDag.getShape( crv )
cmds.connectAttr( crvOrig+'.local', wire+'.baseWire[0]' )
cmds.connectAttr( crvShape+'.local', wire+'.deformedWire[0]' )
cmds.setAttr( wire+'.rotation', 0.2 )
cmds.setAttr( wire+'.dropoffDistance[0]', 10 )
return failedTargets
def createSpiralCurve(self, baseCurve, numRounds, radius, profileScale):
surfaceCV = float(numRounds+2)*(float(numRounds+2)/2.0)
# duplicate curve and get the maxValue
cmds.select(baseCurve, r=True)
curveMaxValue = cmds.getAttr(baseCurve+".maxValue")
cmds.rebuildCurve(ch=0, rpo=1, rt=0, end=1, kr=2, kcp=0, kep=1, kt=0, s=0, d=3)
# create a circle profile
profile = cmds.circle(nr=[0, 1, 0], c=[0, 0, 0], r=radius)
# put it at the start of the baseCurve
cmds.pathAnimation(profile, fm=True, f=True, fa="y", ua="x", wut=4, wu=[0, 1, 0], c=baseCurve)
# extrude the profile
extrudesurface = cmds.extrude(profile[0], baseCurve, et=2, sc=profileScale)
# curve on surface
curveonsurface = cmds.curveOnSurface(extrudesurface, append=False, uv=(0, 0))
y = 0.0
for i in range(int(surfaceCV)):
y += curveMaxValue/surfaceCV
x = math.fmod(y*2*surfaceCV/curveMaxValue, 8)
#print x, y
cmds.curveOnSurface(curveonsurface, append=True, uv=(x, y))
# duplicate the created curve
cmds.duplicateCurve(ch = False)
cmds.rename("duplicated_"+baseCurve)
spiralCurve = cmds.ls(sl = True)
cmds.rebuildCurve(ch=0, rpo=1, rt=0, end=1, kr=2, kcp=0, kep=1, kt=0, s=0, d=3)
# create wire
#cmds.wire(spiralCurve, dds = [(0, 100)], gw = True, en = 1.0, ce = 0.0, li = 0.0, w = baseCurve)
#cmds.pickWalk(d = "up")
cmds.select(spiralCurve, r = True)
arcCurveGroup = cmds.group(n = "spiralCurveWire"+baseCurve+"___GRP")
#delete unused nodes
cmds.delete(profile)
cmds.delete(extrudesurface[0])
#print "spiral curve created."
return spiralCurve, arcCurveGroup
def makeCurveAsBindedCurve( crv, rebuildRate = 1 ):
crvShape = getShape( crv )
crvShapePath = getDagPath( crvShape )
fnNurbsCurve = om.MFnNurbsCurve( crvShapePath )
spans = fnNurbsCurve.numSpans()
rebuildSpans = spans * rebuildRate
cmds.rebuildCurve( crvShape, constructionHistory=0,
replaceOriginal=1,
rebuildType=0,
endKnots=1,
keepRange=0,
keepControlPoints=0,
keepEndPoints=1,
keepTangents=0,
s=rebuildSpans, d=3, tol=0.01 )
exclusiveMtx = crvShapePath.exclusiveMatrix()
localPoints = om.MPointArray()
fnNurbsCurve.getCVs( localPoints )
mtxList = []
for i in range( 4 ):
for j in range( 4 ):
mtxList.append( exclusiveMtx( i, j ) )
grp = cmds.createNode( 'transform' )
for i in range( localPoints.length() ):
jnt = cmds.joint()
cmds.move( localPoints[i].x, localPoints[i].y, localPoints[i].z, jnt, ws=1 )
multMtx = cmds.createNode( 'multMatrix' )
dcmp = cmds.createNode( 'decomposeMatrix' )
cmds.connectAttr( jnt+'.wm', multMtx+'.i[0]' )
cmds.connectAttr( grp+'.wim', multMtx+'.i[1]' )
cmds.connectAttr( multMtx+'.o', dcmp+'.imat' )
cmds.connectAttr( dcmp+'.ot', crvShape+'.controlPoints[%d]' % i )
cmds.select( jnt )
cmds.xform( grp, ws=1, matrix=mtxList )
def createGuideCurves( orderedVertices, centerVertPos, hrsSys, dynamic = True ): crvs = [] fols = [] locs = [] centerLoc = mn.Node( mc.spaceLocator( )[0] ) centerLoc.a.t.v = centerVertPos locs.append( centerLoc ) for i,v in enumerate( orderedVertices ): vPos = mc.xform( v, q = True, ws = True, t = True ) if dynamic: loc = mn.Node( mc.spaceLocator( )[0] ) loc.a.t.v = vPos curv, folPar = createCurveaBasedOnLocator( centerLoc, loc, 'guide', hrsSys ) fols.append( folPar ) locs.append( loc ) else: curv = crv.Curve( mc.curve( d = 3, ep = [centerVertPos, vPos] ) ) mc.rebuildCurve( curv.name, rpo = 1, rt = 0, end = 1, kr = 2, kcp = 0, kep = 1, kt =0, s= 3, d = 3, tol = 0.01 ) curv.name = 'spiderWeb_guide_' + str( i ) + '_CRV' curv.shape.a.aiRenderCurve.v = 1 crvs.append( curv ) return crvs, fols, locs
def rebuildByMinMaxSpans( curves, minSpans, maxSpans ):
import sgBFunction_dag
sels = sgBFunction_dag.getChildrenShapeExists( curves )
lengthList = []
minLength = 10000000.0
maxLength = 0.0
targetCurves = []
for sel in sels:
selShape = sgBFunction_dag.getShape( sel )
if not selShape: continue
if not cmds.nodeType( selShape ) == 'nurbsCurve': continue
fnCurve = om.MFnNurbsCurve( sgBFunction_dag.getMDagPath( selShape ) )
curveLength = fnCurve.length()
if curveLength < minLength:
minLength = curveLength
if curveLength > maxLength:
maxLength = curveLength
targetCurves.append( sel )
lengthList.append( fnCurve.length() )
diffSpans = maxSpans - minSpans
diffLength = maxLength - minLength
for i in range( len( targetCurves ) ):
lengthRate = ( lengthList[i] - minLength ) / diffLength
spansRate = lengthRate * diffSpans
spans = spansRate + minSpans
cmds.rebuildCurve( targetCurves[i], rpo=1, rt=0, end=1, kr=2, kcp=0, kep=1, kt=1, s=spans, d=3, tol=0.01 )
def _create_curve(self, joint_chain):
"""
Responsible for creating the dynamic curve for the IK Spline solver.
"""
# create our curve
curve_name = self._get_unique_name("dynamicCurve", "DyCrv")
self.joint_positions = list()
for joint in joint_chain:
joint_pos = cmds.xform(joint, q=True, ws=True, t=True)
self.joint_positions.append(joint_pos)
tmp_curve = cmds.curve(d=3, ep=self.joint_positions)
tmp_curve = cmds.rename(tmp_curve, curve_name)
self.curve = cmds.rebuildCurve(tmp_curve, s=len(joint_chain)*3,
ch=False)