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;
if (null == doc)
{
Util.ErrorMsg("Please run this command in a valid"
+ " Revit project document.");
return(Result.Failed);
}
ICollection <ElementId> ids
= Util.GetSelectedElements(uidoc);
if ((null == ids) || (0 == ids.Count))
{
return(Result.Cancelled);
}
// Third attempt: create the element 2D outline
// from element solid faces and meshes in current
// view by projecting them onto the XY plane and
// executing 2d Boolean unions on them.
View view = doc.ActiveView;
Options opt = new Options
{
View = view
};
Clipper c = new Clipper();
VertexLookup vl = new VertexLookup();
List <LineSegment> curves = new List <LineSegment>();
Polygons union = new Polygons();
Dictionary <int, JtLoops> booleanLoops
= new Dictionary <int, JtLoops>(ids.Count);
foreach (ElementId id in ids)
{
Element e = doc.GetElement(id);
GeometryElement geo = e.get_Geometry(opt);
c.Clear();
vl.Clear();
union.Clear();
AddToUnion(union, curves, vl, c, geo);
//AddToUnion( union, vl, c, curves );
//c.AddPaths( subjects, PolyType.ptSubject, true );
//c.AddPaths( clips, PolyType.ptClip, true );
bool succeeded = c.Execute(ClipType.ctUnion, union,
PolyFillType.pftPositive, PolyFillType.pftPositive);
if (0 == union.Count)
{
Debug.Print(string.Format(
"No outline found for {0} <{1}>",
e.Name, e.Id.IntegerValue));
}
else
{
JtLoops loops = ConvertToLoops(union);
loops.NormalizeLoops();
booleanLoops.Add(id.IntegerValue, loops);
}
}
string filepath = Path.Combine(Util.OutputFolderPath,
doc.Title + "_element_2d_boolean_outline.json");
JtWindowHandle hwnd = new JtWindowHandle(uiapp.MainWindowHandle);
string caption = doc.Title + " 2D Booleans";
Util.ExportLoops(filepath, hwnd, caption,
doc, booleanLoops);
return(Result.Succeeded);
}
GetElementLoops(
View view,
ICollection <ElementId> ids)
{
Document doc = view.Document;
Options opt = new Options
{
View = view
};
Clipper c = new Clipper();
VertexLookup vl = new VertexLookup();
List <LineSegment> curves = new List <LineSegment>();
Polygons union = new Polygons();
Dictionary <int, JtLoops> booleanLoops
= new Dictionary <int, JtLoops>(ids.Count);
foreach (ElementId id in ids)
{
c.Clear();
vl.Clear();
union.Clear();
Element e = doc.GetElement(id);
if (e is Room)
{
IList <IList <BoundarySegment> > boundary
= (e as Room).GetBoundarySegments(
new SpatialElementBoundaryOptions());
// Ignore all loops except first, which is
// hopefully outer -- and hopefully the room
// does not have several disjunct parts.
AddToUnionRoom(union, curves, vl, c, boundary);
}
else
{
GeometryElement geo = e.get_Geometry(opt);
AddToUnion(union, curves, vl, c, geo);
}
//AddToUnion( union, vl, c, curves );
//c.AddPaths( subjects, PolyType.ptSubject, true );
//c.AddPaths( clips, PolyType.ptClip, true );
bool succeeded = c.Execute(ClipType.ctUnion, union,
PolyFillType.pftPositive, PolyFillType.pftPositive);
if (0 == union.Count)
{
Debug.Print(string.Format(
"No outline found for {0} <{1}>",
e.Name, e.Id.IntegerValue));
}
else
{
JtLoops loops = ConvertToLoops(union);
loops.NormalizeLoops();
booleanLoops.Add(id.IntegerValue, loops);
}
}
return(booleanLoops);
}