def get_CV_line(dagPath, v, eK1, eK2):
meshFn = om.MFnMesh(dagPath);
e = mt.vertex_edges(dagPath, v);
if e[0]==eK1 or e[0]==eK2:
e = [e[1], e[3]];
else:
e = [e[0], e[2]];
tccNode = mt.get_TCC_DGnode(dagPath);
T = cmds.getAttr(tccNode.name()+".T");
he = []; hv = [];
for eK in e:
f = mt.edge_faces(dagPath, eK);
he0 = mt.halfedge(dagPath, f[0], eK1);
if he0[1]==-1:
he0 = mt.halfedge(dagPath, f[0], eK2);
eN = mt.edge(mt.next(he0));
dir = 0;
if eN == e[0] or eN == e[1]:
dir = 1;
else:
dir = -1;
he0 = mt.next(he0, dir);
T0 = mt.get_halfedge_data(dagPath, T, he0) if dir ==1 else mt.get_halfedge_data(dagPath, T, mt.prev(he0));
he1 = mt.next(he0, dir) if T0 else mt.next(mt.twin(mt.next(he0, dir)),dir);
T1 = mt.get_halfedge_data(dagPath, T, he1) if dir ==1 else mt.get_halfedge_data(dagPath, T, mt.prev(he1));
he2 = mt.next(he1, dir) if T1 else mt.next(mt.twin(mt.next(he1, dir)),dir);
he.append(he0);
he.append(he1);
he.append(he2);
hv.append(mt.tip(he0, dir));
hv.append(mt.tip(he1, dir));
hv.append(mt.tip(he2, dir));
he = [ he[2], he[1], he[0], he[3], he[4], he[5] ];
hv = [ hv[2], hv[1], hv[0], v, hv[3], hv[4], hv[5] ];
return (he, hv);
def get_CV_line(dagPath, v, eK1, eK2):
meshFn = om.MFnMesh(dagPath)
e = mt.vertex_edges(dagPath, v)
if e[0] == eK1 or e[0] == eK2:
e = [e[1], e[3]]
else:
e = [e[0], e[2]]
tccNode = mt.get_TCC_DGnode(dagPath)
T = cmds.getAttr(tccNode.name() + ".T")
he = []
hv = []
for eK in e:
f = mt.edge_faces(dagPath, eK)
he0 = mt.halfedge(dagPath, f[0], eK1)
if he0[1] == -1:
he0 = mt.halfedge(dagPath, f[0], eK2)
eN = mt.edge(mt.next(he0))
dir = 0
if eN == e[0] or eN == e[1]:
dir = 1
else:
dir = -1
he0 = mt.next(he0, dir)
T0 = mt.get_halfedge_data(dagPath, T, he0) if dir == 1 else mt.get_halfedge_data(dagPath, T, mt.prev(he0))
he1 = mt.next(he0, dir) if T0 else mt.next(mt.twin(mt.next(he0, dir)), dir)
T1 = mt.get_halfedge_data(dagPath, T, he1) if dir == 1 else mt.get_halfedge_data(dagPath, T, mt.prev(he1))
he2 = mt.next(he1, dir) if T1 else mt.next(mt.twin(mt.next(he1, dir)), dir)
he.append(he0)
he.append(he1)
he.append(he2)
hv.append(mt.tip(he0, dir))
hv.append(mt.tip(he1, dir))
hv.append(mt.tip(he2, dir))
he = [he[2], he[1], he[0], he[3], he[4], he[5]]
hv = [hv[2], hv[1], hv[0], v, hv[3], hv[4], hv[5]]
return (he, hv)
def doIt(self, args):
if args.length() < 1:
raise RuntimeError("have to specify 'insert'/'remove'!")
if args.asString(0) == "double":
multiplier = 2.0
elif args.asString(0) == "half":
multiplier = 0.5
else:
raise RuntimeError("have to specify 'double'/'half'!")
(dagPath, comp) = mt.selected_dagPath_component()
dagPath.extendToShape()
meshFn = om.MFnMesh(dagPath)
nFV = om.MIntArray()
F = om.MIntArray()
meshFn.getVertices(nFV, F)
edgeIt = om.MItMeshEdge(dagPath, comp)
outMeshAttr = meshFn.attribute("outMesh")
outMeshPlug = om.MPlug(dagPath.node(), outMeshAttr)
plugArray = om.MPlugArray()
outMeshPlug.connectedTo(plugArray, True, True)
foundTCC = False
for k in range(0, plugArray.length()):
TCCnode = plugArray[k].node()
TCCDepNode = om.MFnDependencyNode(TCCnode)
if TCCDepNode.typeName() == "TCC":
foundTCC = True
break
if not foundTCC:
raise Exception('did not find TCC node')
eqc = cmds.getAttr(TCCDepNode.name() + ".eqc")
itv = cmds.getAttr(TCCDepNode.name() + ".itv")
he = mt.halfedges(dagPath, edgeIt.index())
he = he[0]
targetEqc = mt.get_halfedge_data(dagPath, eqc, he)
for k in range(len(eqc)):
if eqc[k] == targetEqc: itv[k] = itv[k] * multiplier
cmds.setAttr(TCCDepNode.name() + ".itv", itv, type="doubleArray")
def doIt(self, args):
if args.length()<1:
raise RuntimeError("have to specify 'insert'/'remove'!");
if args.asString(0)=="double":
multiplier = 2.0;
elif args.asString(0)=="half":
multiplier = 0.5;
else:
raise RuntimeError("have to specify 'double'/'half'!");
(dagPath, comp) = mt.selected_dagPath_component();
dagPath.extendToShape();
meshFn = om.MFnMesh(dagPath);
nFV = om.MIntArray(); F = om.MIntArray();
meshFn.getVertices(nFV, F);
edgeIt = om.MItMeshEdge(dagPath, comp);
outMeshAttr = meshFn.attribute( "outMesh" );
outMeshPlug = om.MPlug(dagPath.node(), outMeshAttr );
plugArray = om.MPlugArray(); outMeshPlug.connectedTo(plugArray, True, True);
foundTCC = False;
for k in range(0, plugArray.length()):
TCCnode = plugArray[k].node();
TCCDepNode = om.MFnDependencyNode( TCCnode );
if TCCDepNode.typeName() == "TCC":
foundTCC = True; break;
if not foundTCC:
raise Exception('did not find TCC node');
eqc = cmds.getAttr(TCCDepNode.name()+".eqc");
itv = cmds.getAttr(TCCDepNode.name()+".itv");
he = mt.halfedges(dagPath, edgeIt.index()); he = he[0];
targetEqc = mt.get_halfedge_data(dagPath, eqc, he);
for k in range(len(eqc)):
if eqc[k]==targetEqc: itv[k] = itv[k] * multiplier;
cmds.setAttr(TCCDepNode.name()+".itv", itv, type="doubleArray");
def knot_modifier(modType):
(dagPath, component) = mt.selected_dagPath_component()
meshFn = om.MFnMesh(dagPath)
tccNode = mt.get_TCC_DGnode(dagPath)
itv = cmds.getAttr(tccNode.name() + ".itv")
T = cmds.getAttr(tccNode.name() + ".T")
ve = build_knot_removal_data(dagPath)
R = []
for (v, e) in ve.items():
(he, v) = get_CV_line(dagPath, v, e[0], e[1])
i = []
for k in range(6):
i.append(mt.get_halfedge_data(dagPath, itv, he[k]))
p = []
for k in range(1, 6):
pk = om.MPoint()
meshFn.getPoint(v[k], pk)
p.append(Vec3(pk.x, pk.y, pk.z))
if modType == KnotModifier.Insert:
(p2, p3, p4) = compute_knot_insertion(p, i)
elif modType == KnotModifier.Remove:
(p2, p3, p4) = compute_knot_removal(p, i)
else:
raise Exception("Unknown Modifier")
R.append((v[2], p2))
R.append((v[3], p3))
R.append((v[4], p4))
return R
def knot_modifier(modType):
(dagPath, component) = mt.selected_dagPath_component();
meshFn = om.MFnMesh(dagPath);
tccNode = mt.get_TCC_DGnode(dagPath);
itv = cmds.getAttr(tccNode.name()+".itv");
T = cmds.getAttr(tccNode.name()+".T");
ve = build_knot_removal_data(dagPath);
R = [];
for (v,e) in ve.items():
(he, v) = get_CV_line(dagPath, v, e[0], e[1]);
i = [];
for k in range(6):
i.append(mt.get_halfedge_data(dagPath, itv, he[k]));
p = [];
for k in range(1,6):
pk = om.MPoint(); meshFn.getPoint(v[k], pk);
p.append(Vec3(pk.x, pk.y, pk.z));
if modType == KnotModifier.Insert:
(p2, p3, p4) = compute_knot_insertion(p, i);
elif modType == KnotModifier.Remove:
(p2, p3, p4) = compute_knot_removal(p, i);
else:
raise Exception("Unknown Modifier");
R.append( (v[2], p2) )
R.append( (v[3], p3) )
R.append( (v[4], p4) )
return R;
