public Result Execute(
ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
UIApplication uiapp = commandData.Application;
UIDocument uidoc = uiapp.ActiveUIDocument;
Document doc = uidoc.Document;
Selection sel = uidoc.Selection;
ISelectionFilter f
= new JtElementsOfClassSelectionFilter <Dimension>();
Reference elemRef = sel.PickObject(
ObjectType.Element, f, "Pick a dimension");
Dimension dim = doc.GetElement(elemRef) as Dimension;
XYZ p = GetDimensionStartPoint(dim);
List <XYZ> pts = GetDimensionPoints(dim, p);
int n = pts.Count;
Debug.Print("Dimension origin at {0} followed "
+ "by {1} further point{2}{3} {4}",
Util.PointString(p), n,
Util.PluralSuffix(n), Util.DotOrColon(n),
string.Join(", ", pts.Select(
q => Util.PointString(q))));
List <double> d = new List <double>(n);
XYZ q0 = p;
foreach (XYZ q in pts)
{
d.Add(q.X - q0.X);
q0 = q;
}
Debug.Print(
"Horizontal distances in metres: "
+ string.Join(", ", d.Select(x =>
Util.RealString(Util.FootToMetre(x)))));
using (Transaction tx = new Transaction(doc))
{
tx.Start("Draw Point Markers");
SketchPlane sketchPlane = dim.View.SketchPlane;
double size = 0.3;
DrawMarker(p, size, sketchPlane);
pts.ForEach(q => DrawMarker(q, size, sketchPlane));
tx.Commit();
}
return(Result.Succeeded);
}
public Result Execute(
ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
UIApplication uiapp = commandData.Application;
UIDocument uidoc = uiapp.ActiveUIDocument;
Document doc = uidoc.Document;
Selection sel = uidoc.Selection;
View view = doc.ActiveView;
ISelectionFilter f
= new JtElementsOfClassSelectionFilter <Grid>();
Reference elemRef = sel.PickObject(
ObjectType.Element, f, "Pick a grid");
Grid grid = doc.GetElement(elemRef) as Grid;
IList <Curve> gridCurves = grid.GetCurvesInView(
DatumExtentType.Model, view);
using (Transaction tx = new Transaction(doc))
{
tx.Start("Modify Grid Endpoints");
foreach (Curve c in gridCurves)
{
XYZ start = c.GetEndPoint(0);
XYZ end = c.GetEndPoint(1);
XYZ newStart = start + 10 * XYZ.BasisY;
XYZ newEnd = end - 10 * XYZ.BasisY;
Line newLine = Line.CreateBound(newStart, newEnd);
grid.SetCurveInView(
DatumExtentType.Model, view, newLine);
}
tx.Commit();
}
return(Result.Succeeded);
}
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 two walls and the dimension line point:
Selection sel = uidoc.Selection;
ReferenceArray refs = new ReferenceArray();
try
{
ISelectionFilter f
= new JtElementsOfClassSelectionFilter <Wall>();
refs.Append(sel.PickObject(
ObjectType.Element, f,
"Please select first wall"));
refs.Append(sel.PickObject(
ObjectType.Element, f,
"Please pick dimension line "
+ "point on second wall"));
//rFace = sel.PickObject( ObjectType.Face,
// "Please select face on second wall at dimension line point" );
//
//rPoint = sel.PickObject( ObjectType.PointOnElement,
// "Please select point on first wall" );
}
catch (Autodesk.Revit.Exceptions.OperationCanceledException)
{
message = "No two walls selected";
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:
Wall[] walls = new Wall[2];
List <int> ids = new List <int>(2);
XYZ[] pts = new XYZ[2];
Line[] lines = new Line[2];
IntersectionResult ir;
XYZ normal = null;
int i = 0;
foreach (Reference r in refs)
{
// 'Autodesk.Revit.DB.Reference.Element' is
// obsolete: Property will be removed. Use
// Document.GetElement(Reference) instead.
//Wall wall = r.Element as Wall; // 2011
Wall wall = doc.GetElement(r) as Wall; // 2012
walls[i] = wall;
ids.Add(wall.Id.IntegerValue);
// Obtain location curve and
// check that it is straight:
LocationCurve lc = wall.Location
as LocationCurve;
Curve curve = lc.Curve;
lines[i] = curve as Line;
if (null == lines[i])
{
message = _prompt;
return(Result.Failed);
}
// Obtain normal vectors
// and ensure that they are equal,
// i.e. walls are parallel:
if (null == normal)
{
normal = Util.Normal(lines[i]);
}
else
{
if (!Util.IsParallel(normal,
Util.Normal(lines[i])))
{
message = _prompt;
return(Result.Failed);
}
}
// Obtain pick points and project
// onto wall location lines:
XYZ p = r.GlobalPoint;
ir = lines[i].Project(p);
if (null == ir)
{
message = string.Format(
"Unable to project pick point {0} "
+ "onto wall location line.",
i);
return(Result.Failed);
}
pts[i] = ir.XYZPoint;
Debug.Print(
"Wall {0} id {1} at {2}, {3} --> point {4}",
i, wall.Id.IntegerValue,
Util.PointString(lines[i].GetEndPoint(0)),
Util.PointString(lines[i].GetEndPoint(1)),
Util.PointString(pts[i]));
if (0 < i)
{
// Project dimension point selected on second wall
// back onto first wall, and ensure that normal
// points from second wall to first:
ir = lines[0].Project(pts[1]);
if (null == ir)
{
message = string.Format(
"Unable to project selected dimension "
+ "line point {0} on second wall onto "
+ "first wall's location line.",
Util.PointString(pts[1]));
return(Result.Failed);
}
pts[0] = ir.XYZPoint;
}
++i;
}
XYZ v = pts[0] - pts[1];
if (0 > v.DotProduct(normal))
{
normal = -normal;
}
// Shoot a ray back from the second
// picked wall towards first:
Debug.Print(
"Shooting ray from {0} in direction {1}",
Util.PointString(pts[1]),
Util.PointString(normal));
View3D view = Get3DView(doc);
if (null == view)
{
message = "No 3D view named '{3D}' found; "
+ "run the View > 3D View command once "
+ "to generate it.";
return(Result.Failed);
}
//refs = doc.FindReferencesByDirection(
// pts[1], normal, view ); // 2011
//IList<ReferenceWithContext> refs2
// = doc.FindReferencesWithContextByDirection(
// pts[1], normal, view ); // 2012
// In the Revit 2014 API, the call to
// FindReferencesWithContextByDirection causes a
// warning saying:
// "FindReferencesWithContextByDirection is obsolete:
// This method is deprecated in Revit 2014.
// Use the ReferenceIntersector class instead."
ReferenceIntersector ri
= new ReferenceIntersector(
walls[0].Id, FindReferenceTarget.Element, view);
ReferenceWithContext ref2
= ri.FindNearest(pts[1], normal);
if (null == ref2)
{
message = "ReferenceIntersector.FindNearest"
+ " returned null!";
return(Result.Failed);
}
#region Obsolete code to determine the closest reference
#if NEED_TO_DETERMINE_CLOSEST_REFERENCE
// Store the references to the wall surfaces:
Reference[] surfrefs = new Reference[2] {
null, null
};
// Find the two closest intersection
// points on each of the two walls:
double[] minDistance = new double[2] {
double.MaxValue,
double.MaxValue
};
//foreach( Reference r in refs )
foreach (ReferenceWithContext rc in refs2)
{
// 'Autodesk.Revit.DB.Reference.Element' is
// obsolete: Property will be removed. Use
// Document.GetElement(Reference) instead.
//Element e = r.Element; // 2011
Reference r = rc.GetReference();
Element e = doc.GetElement(r); // 2012
if (e is Wall)
{
i = ids.IndexOf(e.Id.IntegerValue);
if (-1 < i &&
ElementReferenceType.REFERENCE_TYPE_SURFACE
== r.ElementReferenceType)
{
//GeometryObject g = r.GeometryObject; // 2011
GeometryObject g = e.GetGeometryObjectFromReference(r); // 2012
if (g is PlanarFace)
{
PlanarFace face = g as PlanarFace;
Line line = (e.Location as LocationCurve)
.Curve as Line;
Debug.Print(
"Wall {0} at {1}, {2} surface {3} "
+ "normal {4} proximity {5}",
e.Id.IntegerValue,
Util.PointString(line.GetEndPoint(0)),
Util.PointString(line.GetEndPoint(1)),
Util.PointString(face.Origin),
Util.PointString(face.Normal),
rc.Proximity);
// First reference: assert it is a face on this wall
// and the distance is half the wall thickness.
// Second reference: the first reference on the other
// wall; assert the distance between the two references
// equals the distance between the wall location lines
// minus half of the sum of the two wall thicknesses.
if (rc.Proximity < minDistance[i])
{
surfrefs[i] = r;
minDistance[i] = rc.Proximity;
}
}
}
}
}
if (null == surfrefs[0])
{
message = "No suitable face intersection "
+ "points found on first wall.";
return(Result.Failed);
}
if (null == surfrefs[1])
{
message = "No suitable face intersection "
+ "points found on second wall.";
return(Result.Failed);
}
CmdDimensionWallsIterateFaces
.CreateDimensionElement(doc.ActiveView,
pts[0], surfrefs[0], pts[1], surfrefs[1]);
#endif // NEED_TO_DETERMINE_CLOSEST_REFERENCE
#endregion // Obsolete code to determine the closest reference
CmdDimensionWallsIterateFaces
.CreateDimensionElement(doc.ActiveView,
pts[0], ref2.GetReference(), pts[1], refs.get_Item(1));
return(Result.Succeeded);
}
/// <summary>
/// Run the automatic or interactive
/// selection process.
/// </summary>
public Result Pick()
{
// Retrieve all T elements in the entire model.
_a = new List <T>(
new FilteredElementCollector(_doc)
.OfClass(typeof(T))
.ToElements()
.Cast <T>());
int n = _a.Count;
// If there are less than two,
// there is nothing we can do.
if (2 > n)
{
return(Result.Failed);
}
// If there are exactly two, pick those.
if (2 == n)
{
return(Result.Succeeded);
}
// There are more than two to choose from.
// Check for a pre-selection.
_a.Clear();
Selection sel = _uidoc.Selection;
ICollection <ElementId> ids
= sel.GetElementIds();
n = ids.Count;
Debug.Print("{0} pre-selected elements.", n);
// If two or more T elements were pre-
// selected, use the first two encountered.
if (1 < n)
{
foreach (ElementId id in ids)
{
T e = _doc.GetElement(id) as T;
Debug.Assert(null != e,
"only elements of type T can be picked");
_a.Add(e);
if (2 == _a.Count)
{
Debug.Print("Found two pre-selected "
+ "elements of desired type and "
+ "ignoring everything else.");
break;
}
}
}
// None or less than two elements were pre-
// selected, so prompt for an interactive
// post-selection instead.
if (2 != _a.Count)
{
_a.Clear();
// Select first element.
ISelectionFilter filter
= new JtElementsOfClassSelectionFilter <T>();
try
{
Reference r = sel.PickObject(
ObjectType.Element, filter,
"Please pick first element.");
_a.Add(_doc.GetElement(r.ElementId)
as T);
}
catch (Autodesk.Revit.Exceptions
.OperationCanceledException)
{
return(Result.Cancelled);
}
// Select second element.
try
{
Reference r = sel.PickObject(
ObjectType.Element, filter,
"Please pick second element.");
_a.Add(_doc.GetElement(r.ElementId)
as T);
}
catch (Autodesk.Revit.Exceptions
.OperationCanceledException)
{
return(Result.Cancelled);
}
}
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);
}
