public override FScheme.Value Evaluate(FSharpList <FScheme.Value> args)
{
if (SelectedIndex < 0)
{
throw new Exception("Please select a nurbsCurve node.");
}
var node_name = Items[SelectedIndex].Name;
var curve = (NurbSpline)((FScheme.Value.Container)args[0]).Item;
Point3DCollection controlPoints = new Point3DCollection();
foreach (XYZ cpt in curve.CtrlPoints)
{
controlPoints.Add(new Point3D(cpt.X, cpt.Y, cpt.Z));
}
List <double> knots = new List <double>();
foreach (double d in curve.Knots)
{
knots.Add(d);
}
MFnNurbsCurveForm form = curve.isClosed ? MFnNurbsCurveForm.kClosed : MFnNurbsCurveForm.kOpen;
DynamoMaya.Contract.IService s = MayaCommunication.openChannelToMaya();
s.sendCurveToMaya(node_name, controlPoints, knots, curve.Degree, form);
MayaCommunication.closeChannelToMaya(s);
return(FScheme.Value.NewDummy(node_name));
}
public void sendCurveToMaya(string node_name, Point3DCollection controlVertices, List <double> knots, int degree,
MFnNurbsCurveForm form)
{
var dn = new MFnDagNode(getDagNode(node_name));
var plCreate = dn.findPlug("create");
var plDynamoCreate = new MPlug();
try
{
plDynamoCreate = dn.findPlug("dynamoCreate");
}
catch
{
var tAttr = new MFnTypedAttribute();
var ldaDynamoCreate = tAttr.create("dynamoCreate", "dc", MFnData.Type.kNurbsCurve, MObject.kNullObj);
try
{
dn.addAttribute(ldaDynamoCreate, MFnDependencyNode.MAttrClass.kLocalDynamicAttr);
plDynamoCreate = dn.findPlug(ldaDynamoCreate);
var dagm = new MDagModifier();
dagm.connect(plDynamoCreate, plCreate);
dagm.doIt();
}
catch
{
return;
}
}
var ncd = new MFnNurbsCurveData();
var oOwner = ncd.create();
var nc = new MFnNurbsCurve();
var p_aControlVertices = new MPointArray();
foreach (var p in controlVertices)
{
p_aControlVertices.Add(new MPoint(p.X, p.Y, p.Z));
}
var d_aKnots = new MDoubleArray();
for (var i = 1; i < knots.Count - 1; ++i)
{
d_aKnots.Add(knots[i]);
}
nc.create(p_aControlVertices, d_aKnots, (uint)degree, (MFnNurbsCurve.Form)form, false, true, oOwner);
plDynamoCreate.setMObject(oOwner);
MGlobal.executeCommandOnIdle(string.Format("dgdirty {0}.create;", node_name));
}
public void sendCurveToMaya(string node_name, Point3DCollection controlVertices, List<double> knots, int degree, MFnNurbsCurveForm form)
{
MFnDagNode dn = new MFnDagNode(getDagNode(node_name));
MPlug plCreate = dn.findPlug("create");
MPlug plDynamoCreate = new MPlug();
try
{
plDynamoCreate = dn.findPlug("dynamoCreate");
}
catch
{
MFnTypedAttribute tAttr = new MFnTypedAttribute();
MObject ldaDynamoCreate = tAttr.create("dynamoCreate", "dc", MFnData.Type.kNurbsCurve, MObject.kNullObj);
try
{
dn.addAttribute(ldaDynamoCreate, MFnDependencyNode.MAttrClass.kLocalDynamicAttr);
plDynamoCreate = dn.findPlug(ldaDynamoCreate);
MDagModifier dagm = new MDagModifier();
dagm.connect(plDynamoCreate, plCreate);
dagm.doIt();
}
catch
{
return;
}
}
MFnNurbsCurveData ncd = new MFnNurbsCurveData();
MObject oOwner = ncd.create();
MFnNurbsCurve nc = new MFnNurbsCurve();
MPointArray p_aControlVertices = new MPointArray();
foreach (Point3D p in controlVertices)
{
p_aControlVertices.Add(new MPoint(p.X, p.Y, p.Z));
}
MDoubleArray d_aKnots = new MDoubleArray();
for (int i = 1; i < knots.Count - 1; ++i )
{
d_aKnots.Add(knots[i]);
}
nc.create(p_aControlVertices, d_aKnots, (uint)degree, (MFnNurbsCurve.Form)form, false, true, oOwner);
plDynamoCreate.setMObject(oOwner);
MGlobal.executeCommandOnIdle(String.Format("dgdirty {0}.create;", node_name));
}