/// <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);
}
private static string resetSketchPlaneMethod(Autodesk.Revit.DB.CurveElement mc, Curve c, Autodesk.Revit.DB.Plane flattenedOnPlane, out bool needsSketchPlaneReset)
{
//do we need to reset?
needsSketchPlaneReset = false;
Autodesk.Revit.DB.Plane newPlane = flattenedOnPlane != null ? flattenedOnPlane : CurveUtils.GetPlaneFromCurve(c, false);
Autodesk.Revit.DB.Plane curPlane = mc.SketchPlane.GetPlane();
bool resetPlane = false;
{
double llSqCur = curPlane.Normal.DotProduct(curPlane.Normal);
double llSqNew = newPlane.Normal.DotProduct(newPlane.Normal);
double dotP = newPlane.Normal.DotProduct(curPlane.Normal);
double dotSqNormalized = (dotP / llSqCur) * (dotP / llSqNew);
double angleTol = System.Math.PI / 1800.0;
if (dotSqNormalized < 1.0 - angleTol * angleTol)
{
resetPlane = true;
}
}
Autodesk.Revit.DB.SketchPlane sp = null;
if (!resetPlane)
{
double originDiff = curPlane.Normal.DotProduct(curPlane.Origin - newPlane.Origin);
double tolerance = 0.000001;
if (originDiff > tolerance || originDiff < -tolerance)
{
sp = GetSketchPlaneFromCurve(c);
mc.SketchPlane = GetSketchPlaneFromCurve(c);
}
return((sp == null || mc.SketchPlane.Id == sp.Id) ? "" : sp.UniqueId);
}
//do reset if method is available
bool foundMethod = false;
if (hasMethodResetSketchPlane)
{
Type CurveElementType = typeof(Autodesk.Revit.DB.CurveElement);
MethodInfo[] curveElementMethods = CurveElementType.GetMethods(System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.Public);
System.String nameOfMethodSetCurve = "ResetSketchPlaneAndCurve";
System.String nameOfMethodSetCurveAlt = "SetSketchPlaneAndCurve";
foreach (MethodInfo m in curveElementMethods)
{
if (m.Name == nameOfMethodSetCurve || m.Name == nameOfMethodSetCurveAlt)
{
object[] argsM = new object[2];
sp = GetSketchPlaneFromCurve(c);
argsM[0] = sp;
argsM[1] = null;
foundMethod = true;
m.Invoke(mc, argsM);
break;
}
}
}
if (!foundMethod)
{
//sp = dynRevitUtils.GetSketchPlaneFromCurve(c);
hasMethodResetSketchPlane = false;
needsSketchPlaneReset = true;
//expect exception, so try to keep old plane?
//mc.SketchPlane = sp;
return("");
}
if (sp != null && mc.SketchPlane.Id != sp.Id)
{
return(sp.UniqueId);
}
return("");
}
