public Result Execute(
ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
UIApplication uiapp = commandData.Application;
uidoc = uiapp.ActiveUIDocument;
Application app = uiapp.Application;
doc = uidoc.Document;
sel = uidoc.Selection;
Reference rf = sel.PickObject(ObjectType.Face, "Select Face");
Element ele = doc.GetElement(rf);
GeometryObject geoobject = ele.GetGeometryObjectFromReference(rf);
PlanarFace face = geoobject as PlanarFace;
Plane plane = face.Faceby3pointPlane();
XYZ direction = face.ComputeNormal(UV.Zero);
using (Transaction tran = new Transaction(doc, "Set view by face"))
{
tran.Start();
SketchPlane skt = SketchPlane.Create(doc, plane);
View3D view3d = doc.ActiveView as View3D;
view3d.OrientTo(plane.Normal);
doc.ActiveView.SketchPlane = skt;
uidoc.RefreshActiveView();
uidoc.ShowElements(ele.Id);
tran.Commit();
}
return(Result.Succeeded);
}
/// <summary>
/// 建立新的3D视图，并将其剖面框设为选择房间的大小
/// create a new 3D view and change the section box fix the selected room
/// </summary>
/// <returns></returns>
public View3D Create3DView()
{
using (Transaction tran = new Transaction(DocSet.doc))
{
var collector = new FilteredElementCollector(DocSet.doc).OfClass(typeof(ViewFamilyType));
var viewFamilyTypes = from elem in collector
let type = elem as ViewFamilyType
where type.ViewFamily == ViewFamily.ThreeDimensional
select type;
tran.Start("Create A new 3Dview");
View3D view = View3D.CreateIsometric(DocSet.doc, viewFamilyTypes.First().Id);
//设定一个新的截面框
BoundingBoxXYZ boxXyz = new BoundingBoxXYZ();
XYZ max = DocSet.selRoom.get_BoundingBox(view).Max;
XYZ min = DocSet.selRoom.get_BoundingBox(view).Min;
boxXyz.Max = new XYZ(max.X + 2, max.Y + 2, max.Z);
boxXyz.Min = new XYZ(min.X - 2, min.Y - 2, min.Z - 0.5);
view.OrientTo(new XYZ(1, 1, -1));//将3D视角转到左上
view.SetSectionBox(boxXyz);
string name = "ISO ";
name += _SoANumber;
view.ViewName = name;
var par = view.get_Parameter(BuiltInParameter.VIEW_DESCRIPTION).Set(DocSet.selRoom.Name + " - ISOMETRIC");
tran.Commit();
//view.SetOrientation(new ViewOrientation3D )
return(view);
}
}