private FamilyInstanceCreationData GetCreationData(Autodesk.Revit.DB.Curve curve, Autodesk.Revit.DB.XYZ upVector, Autodesk.Revit.DB.Level level, Autodesk.Revit.DB.Structure.StructuralType structuralType, Autodesk.Revit.DB.FamilySymbol symbol)
{
//calculate the desired rotation
//we do this by finding the angle between the z axis
//and vector between the start of the beam and the target point
//both projected onto the start plane of the beam.
var zAxis = new XYZ(0, 0, 1);
var yAxis = new XYZ(0, 1, 0);
//flatten the beam line onto the XZ plane
//using the start's z coordinate
var start = curve.GetEndPoint(0);
var end = curve.GetEndPoint(1);
var newEnd = new XYZ(end.X, end.Y, start.Z); //drop end point to plane
//catch the case where the end is directly above
//the start, creating a normal with zero length
//in that case, use the Z axis
XYZ planeNormal = newEnd.IsAlmostEqualTo(start) ? zAxis : (newEnd - start).Normalize();
double gamma = upVector.AngleOnPlaneTo(zAxis.IsAlmostEqualTo(planeNormal) ? yAxis : zAxis, planeNormal);
return(new FamilyInstanceCreationData(curve, symbol, level, structuralType)
{
RotateAngle = gamma
});
}
// PB: This implementation borrows the somewhat risky notions from the original Dynamo
// implementation. In short, it has the ability to infer a sketch plane,
// which might also mean deleting the original one.
/// <summary>
/// Initialize a ModelCurve element
/// </summary>
/// <param name="crv"></param>
/// <param name="makeReferenceCurve"></param>
private void InitModelCurve(Autodesk.Revit.DB.Curve crv, bool makeReferenceCurve)
{
//Phase 1 - Check to see if the object exists and should be rebound
var mc =
ElementBinder.GetElementFromTrace <Autodesk.Revit.DB.ModelCurve>(Document);
//There was a modelcurve, try and set sketch plane
// if you can't, rebuild
if (mc != null)
{
InternalSetCurveElement(mc);
InternalSetSketchPlaneFromCurve(crv);
return;
}
ElementId oldId = (mc != null) ? mc.Id : ElementId.InvalidElementId;
string oldUniqueId = (mc != null) ? mc.UniqueId : string.Empty;
TransactionManager.Instance.EnsureInTransaction(Document);
// (sic erat scriptum)
var sp = GetSketchPlaneFromCurve(crv);
var plane = sp.GetPlane();
if (CurveUtils.GetPlaneFromCurve(crv, true) == null)
{
var flattenCurve = Flatten3dCurveOnPlane(crv, plane);
mc = Document.IsFamilyDocument
? Document.FamilyCreate.NewModelCurve(flattenCurve, sp)
: Document.Create.NewModelCurve(flattenCurve, sp);
setCurveMethod(mc, crv);
}
else
{
mc = Document.IsFamilyDocument
? Document.FamilyCreate.NewModelCurve(crv, sp)
: Document.Create.NewModelCurve(crv, sp);
}
if (mc.SketchPlane.Id != sp.Id)
{
//THIS BIZARRE as Revit could use different existing SP, so if Revit had found better plane this sketch plane has no use
DocumentManager.Instance.DeleteElement(new ElementUUID(sp.UniqueId));
}
InternalSetCurveElement(mc);
if (oldId != mc.Id && oldId != ElementId.InvalidElementId)
{
DocumentManager.Instance.DeleteElement(new ElementUUID(oldUniqueId));
}
if (makeReferenceCurve)
{
mc.ChangeToReferenceLine();
}
TransactionManager.Instance.TransactionTaskDone();
ElementBinder.SetElementForTrace(this.InternalElement);
}
/// <summary>
/// Internal constructor - creates a single StructuralFraming instance
/// </summary>
internal StructuralFraming(Autodesk.Revit.DB.Curve curve, Autodesk.Revit.DB.XYZ upVector, Autodesk.Revit.DB.Level level, Autodesk.Revit.DB.Structure.StructuralType structuralType, Autodesk.Revit.DB.FamilySymbol symbol)
{
//Phase 1 - Check to see if the object exists and should be rebound
var oldFam =
ElementBinder.GetElementFromTrace <Autodesk.Revit.DB.FamilyInstance>(Document);
//There was a point, rebind to that, and adjust its position
if (oldFam != null)
{
InternalSetFamilyInstance(oldFam);
InternalSetFamilySymbol(symbol);
InternalSetCurve(curve);
return;
}
//Phase 2- There was no existing point, create one
TransactionManager.Instance.EnsureInTransaction(Document);
var creationData = GetCreationData(curve, upVector, level, structuralType, symbol);
Autodesk.Revit.DB.FamilyInstance fi;
if (Document.IsFamilyDocument)
{
var elementIds = Document.FamilyCreate.NewFamilyInstances2(new List <FamilyInstanceCreationData>()
{
creationData
});
if (elementIds.Count == 0)
{
throw new Exception("Could not create the FamilyInstance");
}
fi = (Autodesk.Revit.DB.FamilyInstance)Document.GetElement(elementIds.First());
}
else
{
var elementIds = Document.Create.NewFamilyInstances2(new List <FamilyInstanceCreationData>()
{
creationData
});
if (elementIds.Count == 0)
{
throw new Exception("Could not create the FamilyInstance");
}
fi = (Autodesk.Revit.DB.FamilyInstance)Document.GetElement(elementIds.First());
}
InternalSetFamilyInstance(fi);
TransactionManager.Instance.TransactionTaskDone();
ElementBinder.SetElementForTrace(this.InternalElement);
}
private void InternalSetCurve(Autodesk.Revit.DB.Curve crv)
{
TransactionManager.Instance.EnsureInTransaction(Document);
//update the curve
var locCurve = InternalFamilyInstance.Location as LocationCurve;
locCurve.Curve = crv;
TransactionManager.Instance.TransactionTaskDone();
}
/// <summary>
/// Set the curve internally. Returns false if this method failed to set the curve
/// </summary>
/// <param name="c"></param>
/// <returns></returns>
private bool InternalSetSketchPlaneFromCurve(Autodesk.Revit.DB.Curve c)
{
TransactionManager.Instance.EnsureInTransaction(Document);
// Infer the sketch plane
Autodesk.Revit.DB.Plane plane = CurveUtils.GetPlaneFromCurve(c, false);
// attempt to change the sketch plane
bool needsRemake = false;
string idSpUnused = resetSketchPlaneMethod(this.InternalCurveElement, c, plane, out needsRemake);
// if we got a valid id, delete the old sketch plane
if (idSpUnused != String.Empty)
{
DocumentManager.Instance.DeleteElement(new ElementUUID(idSpUnused));
}
TransactionManager.Instance.TransactionTaskDone();
return(!needsRemake);
}
// PB: This implementation borrows the somewhat risky notions from the original Dynamo
// implementation. In short, it has the ability to infer a sketch plane,
// which might also mean deleting the original one.
/// <summary>
/// Internal constructor for ModelCurve
/// </summary>
/// <param name="crv"></param>
/// <param name="makeReferenceCurve"></param>
private ModelCurve(Autodesk.Revit.DB.Curve crv, bool makeReferenceCurve)
{
SafeInit(() => InitModelCurve(crv, makeReferenceCurve));
}
