/// <summary>
/// External command mainline. Run in the sample
/// model Z:\a\rvt\dimension_case_2015.rvt, e.g.
/// </summary>
public Result Execute(
ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
UIApplication app = commandData.Application;
UIDocument uidoc = app.ActiveUIDocument;
Document doc = uidoc.Document;
JtPairPicker <FamilyInstance> picker
= new JtPairPicker <FamilyInstance>(uidoc);
Result rc = picker.Pick();
if (Result.Failed == rc)
{
message = "We need at least two "
+ "FamilyInstance elements in the model.";
}
else if (Result.Succeeded == rc)
{
IList <FamilyInstance> a = picker.Selected;
_opt = new Options();
_opt.ComputeReferences = true;
_opt.IncludeNonVisibleObjects = true;
XYZ[] pts = new XYZ[2];
Reference[] refs = new Reference[2];
pts[0] = (a[0].Location as LocationPoint).Point;
pts[1] = (a[1].Location as LocationPoint).Point;
refs[0] = GetFamilyInstancePointReference(a[0]);
refs[1] = GetFamilyInstancePointReference(a[1]);
CmdDimensionWallsIterateFaces
.CreateDimensionElement(doc.ActiveView,
pts[0], refs[0], pts[1], refs[1]);
}
return(rc);
}
public Result Execute(
ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
UIApplication uiapp = commandData.Application;
UIDocument uidoc = uiapp.ActiveUIDocument;
Application app = uiapp.Application;
Document doc = uidoc.Document;
//// Select all pipes in the entire model.
//List<Pipe> pipes = new List<Pipe>(
// new FilteredElementCollector( doc )
// .OfClass( typeof( Pipe ) )
// .ToElements()
// .Cast<Pipe>() );
//int n = pipes.Count;
//// If there are less than two,
//// there is nothing we can do.
//if( 2 > n )
//{
// message = _prompt;
// return Result.Failed;
//}
//// If there are exactly two, pick those.
//if( 2 < n )
//{
// // Else, check for a pre-selection.
// pipes.Clear();
// Selection sel = uidoc.Selection;
// //n = sel.Elements.Size; // 2014
// ICollection<ElementId> ids
// = sel.GetElementIds(); // 2015
// n = ids.Count; // 2015
// Debug.Print( "{0} pre-selected elements.",
// n );
// // If two or more model pipes were pre-
// // selected, use the first two encountered.
// if( 1 < n )
// {
// //foreach( Element e in sel.Elements ) // 2014
// foreach( ElementId id in ids ) // 2015
// {
// Pipe c = doc.GetElement( id ) as Pipe;
// if( null != c )
// {
// pipes.Add( c );
// if( 2 == pipes.Count )
// {
// Debug.Print( "Found two model pipes, "
// + "ignoring everything else." );
// break;
// }
// }
// }
// }
// // Else, prompt for an
// // interactive post-selection.
// if( 2 != pipes.Count )
// {
// pipes.Clear();
// try
// {
// Reference r = sel.PickObject(
// ObjectType.Element,
// new PipeElementSelectionFilter(),
// "Please pick first pipe." );
// pipes.Add( doc.GetElement( r.ElementId )
// as Pipe );
// }
// catch( Autodesk.Revit.Exceptions
// .OperationCanceledException )
// {
// return Result.Cancelled;
// }
// try
// {
// Reference r = sel.PickObject(
// ObjectType.Element,
// new PipeElementSelectionFilter(),
// "Please pick second pipe." );
// pipes.Add( doc.GetElement( r.ElementId )
// as Pipe );
// }
// catch( Autodesk.Revit.Exceptions
// .OperationCanceledException )
// {
// return Result.Cancelled;
// }
// }
//}
JtPairPicker <Pipe> picker
= new JtPairPicker <Pipe>(uidoc);
Result rc = picker.Pick();
if (Result.Failed == rc)
{
message = _prompt;
}
if (Result.Succeeded != rc)
{
return(rc);
}
IList <Pipe> pipes = picker.Selected;
// Check for same pipe system type.
ElementId systemTypeId
= pipes[0].MEPSystem.GetTypeId();
Debug.Assert(pipes[1].MEPSystem.GetTypeId()
.IntegerValue.Equals(
systemTypeId.IntegerValue),
"expected two similar pipes");
// Check for same pipe level.
ElementId levelId = pipes[0].LevelId;
Debug.Assert(
pipes[1].LevelId.IntegerValue.Equals(
levelId.IntegerValue),
"expected two pipes on same level");
// Extract data from the two selected pipes.
double wall_thickness = GetWallThickness(pipes[0]);
Debug.Print("{0} has wall thickness {1}",
Util.ElementDescription(pipes[0]),
Util.RealString(wall_thickness));
Curve c0 = pipes[0].GetCurve();
Curve c1 = pipes[1].GetCurve();
if (!(c0 is Line) || !(c1 is Line))
{
message = _prompt
+ " Expected straight pipes.";
return(Result.Failed);
}
XYZ p00 = c0.GetEndPoint(0);
XYZ p01 = c0.GetEndPoint(1);
XYZ p10 = c1.GetEndPoint(0);
XYZ p11 = c1.GetEndPoint(1);
XYZ v0 = p01 - p00;
XYZ v1 = p11 - p10;
if (!Util.IsParallel(v0, v1))
{
message = _prompt
+ " Expected parallel pipes.";
return(Result.Failed);
}
// Select the two pipe endpoints
// that are farthest apart.
XYZ p0 = p00.DistanceTo(p10) > p01.DistanceTo(p10)
? p00
: p01;
XYZ p1 = p10.DistanceTo(p0) > p11.DistanceTo(p0)
? p10
: p11;
XYZ pm = 0.5 * (p0 + p1);
XYZ v = p1 - p0;
if (Util.IsParallel(v, v0))
{
message = "The selected pipes are colinear.";
return(Result.Failed);
}
// Normal vector of the plane defined by the
// two parallel and offset pipes, which is
// the plane hosting the rolling offset
XYZ z = v.CrossProduct(v1);
// Vector perpendicular to v0 and v0 and
// z, i.e. vector pointing from the first pipe
// to the second in the cross sectional view.
XYZ w = z.CrossProduct(v1).Normalize();
// Offset distance perpendicular to pipe direction
double distanceAcross = Math.Abs(
v.DotProduct(w));
// Distance between endpoints parallel
// to pipe direction
double distanceAlong = Math.Abs(
v.DotProduct(v1.Normalize()));
Debug.Assert(Util.IsEqual(v.GetLength(),
Math.Sqrt(distanceAcross * distanceAcross
+ distanceAlong * distanceAlong)),
"expected Pythagorean equality here");
// The required offset pipe angle.
double angle = 45 * Math.PI / 180.0;
// The angle on the other side.
double angle2 = 0.5 * Math.PI - angle;
double length = distanceAcross * Math.Tan(angle2);
double halfLength = 0.5 * length;
// How long should the pipe stubs become?
double remainingPipeLength
= 0.5 * (distanceAlong - length);
if (0 > v1.DotProduct(v))
{
v1.Negate();
}
v1 = v1.Normalize();
XYZ q0 = p0 + remainingPipeLength * v1;
XYZ q1 = p1 - remainingPipeLength * v1;
using (Transaction tx = new Transaction(doc))
{
// Determine pipe diameter for creating
// matching pipes and fittings
Pipe pipe = pipes[0];
double diameter = pipe
.get_Parameter(bipDiameter) // "Diameter"
.AsDouble();
// Pipe type for calls to doc.Create.NewPipe
PipeType pipe_type_standard
= new FilteredElementCollector(doc)
.OfClass(typeof(PipeType))
.Cast <PipeType>()
.Where <PipeType>(e
=> e.Name.Equals("Standard"))
.FirstOrDefault <PipeType>();
Debug.Assert(
pipe_type_standard.Id.IntegerValue.Equals(
pipe.PipeType.Id.IntegerValue),
"expected all pipes in this simple "
+ "model to use the same pipe type");
tx.Start("Rolling Offset");
if (_place_model_line)
{
// Trim or extend existing pipes
(pipes[0].Location as LocationCurve).Curve
= Line.CreateBound(p0, q0);
(pipes[1].Location as LocationCurve).Curve
= Line.CreateBound(p1, q1);
// Add a model line for the rolling offset pipe
Creator creator = new Creator(doc);
Line line = Line.CreateBound(q0, q1);
creator.CreateModelCurve(line);
pipe = null;
}
else if (_place_fittings)
{
// Set active work plane to the rolling
// offset plane... removed again, since
// this has no effect at all on the
// fitting placement or rotation.
//
//Plane plane = new Plane( z, q0 );
//
//SketchPlane sp = SketchPlane.Create(
// doc, plane );
//
//uidoc.ActiveView.SketchPlane = sp;
//uidoc.ActiveView.ShowActiveWorkPlane();
FamilySymbol symbol
= new FilteredElementCollector(doc)
.OfClass(typeof(FamilySymbol))
.OfCategory(BuiltInCategory.OST_PipeFitting)
.Cast <FamilySymbol>()
.Where <FamilySymbol>(e
=> e.Family.Name.Contains("Elbow - Generic"))
.FirstOrDefault <FamilySymbol>();
// Set up first 45 degree elbow fitting
FamilyInstance fitting0 = doc.Create
.NewFamilyInstance(q0, symbol,
StructuralType.NonStructural);
fitting0.LookupParameter("Angle").Set(
45.0 * Math.PI / 180.0);
//fitting0.get_Parameter( bipDiameter ) // does not exist
// .Set( diameter );
fitting0.LookupParameter("Nominal Radius")
.Set(0.5 * diameter);
Line axis = Line.CreateBound(p0, q0);
angle = z.AngleTo(XYZ.BasisZ);
ElementTransformUtils.RotateElement(
doc, fitting0.Id, axis, Math.PI - angle);
Connector con0 = Util.GetConnectorClosestTo(
fitting0, p0);
// Trim or extend existing pipe
(pipes[0].Location as LocationCurve).Curve
= Line.CreateBound(p0, con0.Origin);
// Connect pipe to fitting
Util.Connect(con0.Origin, pipe, fitting0);
// Set up second 45 degree elbow fitting
FamilyInstance fitting1 = doc.Create
.NewFamilyInstance(q1, symbol,
StructuralType.NonStructural);
//fitting1.get_Parameter( "Angle" ).Set( 45.0 * Math.PI / 180.0 ); // 2014
//fitting1.get_Parameter( "Nominal Radius" ).Set( 0.5 * diameter ); // 2014
fitting1.LookupParameter("Angle").Set(45.0 * Math.PI / 180.0); // 2015
fitting1.LookupParameter("Nominal Radius").Set(0.5 * diameter); // 2015
axis = Line.CreateBound(
q1, q1 + XYZ.BasisZ);
ElementTransformUtils.RotateElement(
doc, fitting1.Id, axis, Math.PI);
axis = Line.CreateBound(q1, p1);
ElementTransformUtils.RotateElement(
doc, fitting1.Id, axis, Math.PI - angle);
Connector con1 = Util.GetConnectorClosestTo(
fitting1, p1);
(pipes[1].Location as LocationCurve).Curve
= Line.CreateBound(con1.Origin, p1);
Util.Connect(con1.Origin, fitting1, pipes[1]);
con0 = Util.GetConnectorClosestTo(
fitting0, pm);
con1 = Util.GetConnectorClosestTo(
fitting1, pm);
// Connecting one fitting to the other does
// not insert a pipe in between. If the
// system is edited later, however, the two
// fittings snap together.
//
//con0.ConnectTo( con1 );
// Create rolling offset pipe segment
//pipe = doc.Create.NewPipe( con0.Origin, // 2014
// con1.Origin, pipe_type_standard );
pipe = Pipe.Create(doc,
pipe_type_standard.Id, levelId, con0, con1); // 2015
pipe.get_Parameter(bipDiameter)
.Set(diameter);
// Connect rolling offset pipe segment
// with elbow fittings at each end
Util.Connect(con0.Origin, fitting0, pipe);
Util.Connect(con1.Origin, pipe, fitting1);
}
else
{
if (_use_static_pipe_create)
{
// Element id arguments to Pipe.Create.
ElementId idSystem;
ElementId idType;
ElementId idLevel;
// All these values are invalid for idSystem:
ElementId idSystem1 = pipe.MEPSystem.Id;
ElementId idSystem2 = ElementId.InvalidElementId;
ElementId idSystem3 = PipingSystem.Create(
doc, pipe.MEPSystem.GetTypeId(), "Tbc")
.Id;
// This throws an argument exception saying
// The systemTypeId is not valid piping system type.
// Parameter name: systemTypeId
//pipe = Pipe.Create( doc, idSystem,
// idType, idLevel, q0, q1 );
// Retrieve pipe system type, e.g.
// hydronic supply.
PipingSystemType pipingSystemType
= new FilteredElementCollector(doc)
.OfClass(typeof(PipingSystemType))
.OfType <PipingSystemType>()
.FirstOrDefault(st
=> st.SystemClassification
== MEPSystemClassification
.SupplyHydronic);
if (null == pipingSystemType)
{
message = "Could not find hydronic supply piping system type";
return(Result.Failed);
}
idSystem = pipingSystemType.Id;
Debug.Assert(pipe.get_Parameter(
BuiltInParameter.RBS_PIPING_SYSTEM_TYPE_PARAM)
.AsElementId().IntegerValue.Equals(
idSystem.IntegerValue),
"expected same piping system element id");
// Retrieve the PipeType.
PipeType pipeType =
new FilteredElementCollector(doc)
.OfClass(typeof(PipeType))
.OfType <PipeType>()
.FirstOrDefault();
if (null == pipeType)
{
message = "Could not find pipe type";
return(Result.Failed);
}
idType = pipeType.Id;
Debug.Assert(pipe.get_Parameter(
BuiltInParameter.ELEM_TYPE_PARAM)
.AsElementId().IntegerValue.Equals(
idType.IntegerValue),
"expected same pipe type element id");
Debug.Assert(pipe.PipeType.Id.IntegerValue
.Equals(idType.IntegerValue),
"expected same pipe type element id");
// Retrieve the reference level.
// pipe.LevelId is not the correct source!
idLevel = pipe.get_Parameter(
BuiltInParameter.RBS_START_LEVEL_PARAM)
.AsElementId();
// Create the rolling offset pipe.
pipe = Pipe.Create(doc,
idSystem, idType, idLevel, q0, q1);
}
else
{
//pipe = doc.Create.NewPipe( q0, q1, pipe_type_standard ); // 2014
pipe = Pipe.Create(doc, systemTypeId,
pipe_type_standard.Id, levelId, q0, q1); // 2015
}
pipe.get_Parameter(bipDiameter)
.Set(diameter);
// Connect rolling offset pipe segment
// directly with the neighbouring original
// pipes
//
//Util.Connect( q0, pipes[0], pipe );
//Util.Connect( q1, pipe, pipes[1] );
// NewElbowFitting performs the following:
// - select appropriate fitting family and type
// - place and orient a family instance
// - set its parameters appropriately
// - connect it with its neighbours
Connector con0 = Util.GetConnectorClosestTo(
pipes[0], q0);
Connector con = Util.GetConnectorClosestTo(
pipe, q0);
doc.Create.NewElbowFitting(con0, con);
Connector con1 = Util.GetConnectorClosestTo(
pipes[1], q1);
con = Util.GetConnectorClosestTo(
pipe, q1);
doc.Create.NewElbowFitting(con, con1);
}
tx.Commit();
}
return(Result.Succeeded);
}