/// <summary>
/// Return element bounding box centre point
/// </summary>
public XYZ GetElementBbCenter(Element e)
{
BoundingBoxXYZ bb = e.get_BoundingBox(null);
XYZ center = Util.Midpoint(bb.Min, bb.Max);
return(center);
}
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;
// obtain the current selection and pick
// out all walls from it:
//Selection sel = uidoc.Selection; // 2014
ICollection <ElementId> ids = uidoc.Selection
.GetElementIds(); // 2015
List <Wall> walls = new List <Wall>(2);
//foreach( Element e in sel.Elements ) // 2014
foreach (ElementId id in ids) // 2015
{
Element e = doc.GetElement(id);
if (e is Wall)
{
walls.Add(e as Wall);
}
}
if (2 != walls.Count)
{
message = _prompt;
return(Result.Failed);
}
// ensure the two selected walls are straight and
// parallel; determine their mutual normal vector
// and a point on each wall for distance
// calculations:
List <Line> lines = new List <Line>(2);
List <XYZ> midpoints = new List <XYZ>(2);
XYZ normal = null;
foreach (Wall wall in walls)
{
LocationCurve lc = wall.Location as LocationCurve;
Curve curve = lc.Curve;
if (!(curve is Line))
{
message = _prompt;
return(Result.Failed);
}
Line l = curve as Line;
lines.Add(l);
midpoints.Add(Util.Midpoint(l));
if (null == normal)
{
normal = Util.Normal(l);
}
else
{
if (!Util.IsParallel(normal, Util.Normal(l)))
{
message = _prompt;
return(Result.Failed);
}
}
}
// find the two closest facing faces on the walls;
// they are vertical faces that are parallel to the
// wall curve and closest to the other wall.
Options opt = app.Create.NewGeometryOptions();
opt.ComputeReferences = true;
List <Face> faces = new List <Face>(2);
faces.Add(GetClosestFace(walls[0], midpoints[1], normal, opt));
faces.Add(GetClosestFace(walls[1], midpoints[0], normal, opt));
// create the dimensioning:
CreateDimensionElement(doc.ActiveView,
midpoints[0], faces[0].Reference,
midpoints[1], faces[1].Reference);
return(Result.Succeeded);
}
public Result Execute(
ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
UIApplication app = commandData.Application;
Document doc = app.ActiveUIDocument.Document;
Autodesk.Revit.Creation.Application createApp
= app.Application.Create;
Autodesk.Revit.Creation.Document createDoc
= doc.Create;
// Determine the wall endpoints:
double length = 5 * MeterToFeet;
XYZ [] pts = new XYZ[2];
pts[0] = XYZ.Zero;
pts[1] = new XYZ(length, 0, 0);
// Determine the levels where
// the wall will be located:
Level levelBottom = null;
Level levelTop = null;
if (!GetBottomAndTopLevels(doc,
ref levelBottom, ref levelTop))
{
message = "Unable to determine "
+ "wall bottom and top levels";
return(Result.Failed);
}
using (Transaction t = new Transaction(doc))
{
t.Start("Create Wall, Door and Tag");
// Create a wall:
BuiltInParameter topLevelParam
= BuiltInParameter.WALL_HEIGHT_TYPE;
ElementId topLevelId = levelTop.Id;
//Line line = createApp.NewLineBound( pts[0], pts[1] ); // 2013
Line line = Line.CreateBound(pts[0], pts[1]); // 2014
//Wall wall = createDoc.NewWall( // 2012
// line, levelBottom, false );
Wall wall = Wall.Create( // 2013
doc, line, levelBottom.Id, false);
Parameter param = wall.get_Parameter(
topLevelParam);
param.Set(topLevelId);
// Determine wall thickness for tag
// offset and profile growth:
//double wallThickness = wall.WallType.CompoundStructure.Layers.get_Item( 0 ).Thickness; // 2011
double wallThickness = wall.WallType.GetCompoundStructure().GetLayers()[0].Width; // 2012
// Add door to wall;
// note that the NewFamilyInstance method
// does not automatically add a door tag,
// like the UI command does:
FamilySymbol doorSymbol = GetFirstFamilySymbol(
doc, BuiltInCategory.OST_Doors);
if (null == doorSymbol)
{
message = "No door symbol found.";
return(Result.Failed);
}
XYZ midpoint = Util.Midpoint(pts[0], pts[1]);
FamilyInstance door = createDoc
.NewFamilyInstance(
midpoint, doorSymbol, wall, levelBottom,
StructuralType.NonStructural);
// Create door tag:
View view = doc.ActiveView;
double tagOffset = 3 * wallThickness;
midpoint += tagOffset * XYZ.BasisY;
// 2011: TagOrientation.TAG_HORIZONTAL
IndependentTag tag = createDoc.NewTag(
view, door, false, TagMode.TM_ADDBY_CATEGORY,
TagOrientation.Horizontal, midpoint); // 2012
// Create and assign new door tag type:
FamilySymbol doorTagType
= GetFirstFamilySymbol(
doc, BuiltInCategory.OST_DoorTags);
doorTagType = doorTagType.Duplicate(
"New door tag type") as FamilySymbol;
tag.ChangeTypeId(doorTagType.Id);
// Demonstrate changing name of
// family instance and family symbol:
door.Name = door.Name + " modified";
door.Symbol.Name = door.Symbol.Name + " modified";
t.Commit();
}
return(Result.Succeeded);
}
///// <summary>
///// Allow selection of curve elements only.
///// </summary>
//class CurveElementSelectionFilter : ISelectionFilter
//{
// public bool AllowElement( Element e )
// {
// return e is CurveElement;
// }
// public bool AllowReference( Reference r, XYZ p )
// {
// return true;
// }
//}
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 model curves in the entire model.
List <CurveElement> curves = new List <CurveElement>(
new FilteredElementCollector(doc)
.OfClass(typeof(CurveElement))
.ToElements()
.Cast <CurveElement>());
int n = curves.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.
curves.Clear();
Selection sel = uidoc.Selection;
ICollection <ElementId> ids = sel.GetElementIds();
n = ids.Count;
Debug.Print("{0} pre-selected elements.",
n);
// If two or more model curves were pre-
// selected, use the first two encountered.
if (1 < n)
{
foreach (ElementId id in ids)
{
CurveElement c = doc.GetElement(id)
as CurveElement;
if (null != c)
{
curves.Add(c);
if (2 == curves.Count)
{
Debug.Print("Found two model curves, "
+ "ignoring everything else.");
break;
}
}
}
}
// Else, prompt for an
// interactive post-selection.
if (2 != curves.Count)
{
curves.Clear();
ISelectionFilter f
= new JtElementsOfClassSelectionFilter <CurveElement>();
try
{
Reference r = sel.PickObject(
ObjectType.Element, f,
"Please pick first model curve.");
curves.Add(doc.GetElement(r.ElementId)
as CurveElement);
}
catch (Autodesk.Revit.Exceptions
.OperationCanceledException)
{
return(Result.Cancelled);
}
try
{
Reference r = sel.PickObject(
ObjectType.Element, f,
"Please pick second model curve.");
curves.Add(doc.GetElement(r.ElementId)
as CurveElement);
}
catch (Autodesk.Revit.Exceptions
.OperationCanceledException)
{
return(Result.Cancelled);
}
}
}
// Extract data from the two selected curves.
Curve c0 = curves[0].GeometryCurve;
Curve c1 = curves[1].GeometryCurve;
double sp0 = c0.GetEndParameter(0);
double ep0 = c0.GetEndParameter(1);
double step0 = (ep0 - sp0) / _nSegments;
double sp1 = c1.GetEndParameter(0);
double ep1 = c1.GetEndParameter(1);
double step1 = (ep1 - sp1) / _nSegments;
Debug.Print("Two curves' step size [start, end]:"
+ " {0} [{1},{2}] -- {3} [{4},{5}]",
Util.RealString(step0),
Util.RealString(sp0),
Util.RealString(ep0),
Util.RealString(step1),
Util.RealString(sp1),
Util.RealString(ep1));
// Modify document within a transaction.
using (Transaction tx = new Transaction(doc))
{
Creator creator = new Creator(doc);
tx.Start("MidCurve");
// Current segment start points.
double t0 = sp0;
double t1 = sp1;
XYZ p0 = c0.GetEndPoint(0);
XYZ p1 = c1.GetEndPoint(0);
XYZ p = Util.Midpoint(p0, p1);
Debug.Assert(
p0.IsAlmostEqualTo(c0.Evaluate(t0, false)),
"expected equal start points");
Debug.Assert(
p1.IsAlmostEqualTo(c1.Evaluate(t1, false)),
"expected equal start points");
// Current segment end points.
t0 += step0;
t1 += step1;
XYZ q0, q1, q;
Line line;
for (int i = 0; i < _nSegments; ++i, t0 += step0, t1 += step1)
{
q0 = c0.Evaluate(t0, false);
q1 = c1.Evaluate(t1, false);
q = Util.Midpoint(q0, q1);
Debug.Print(
"{0} {1} {2} {3}-{4} {5}-{6} {7}-{8}",
i,
Util.RealString(t0),
Util.RealString(t1),
Util.PointString(p0),
Util.PointString(q0),
Util.PointString(p1),
Util.PointString(q1),
Util.PointString(p),
Util.PointString(q));
// Create approximating curve segment.
line = Line.CreateBound(p, q);
creator.CreateModelCurve(line);
p0 = q0;
p1 = q1;
p = q;
}
tx.Commit();
}
return(Result.Succeeded);
}
