I tried split 1 floor by 1 grid but stuck when auto split by multiple Grids intersect it.
How to good solution for it.
Thank!
I stuck with multiple grids cut floor.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Windows.Controls;
using System.Xml.Linq;
using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using Autodesk.Revit.UI.Selection;
using Grid = Autodesk.Revit.DB.Grid;
namespace TestProject
{
[Transaction(TransactionMode.Manual)]
public class SplitFloor : IExternalCommand
{
UIDocument _uidoc;
Document _doc;
public Result Execute(ExternalCommandData commdata, ref string msg, ElementSet elemset)
{
_uidoc = commdata.Application.ActiveUIDocument;
_doc = _uidoc.Document;
List<Line> floorboundary = new List<Line>();
CurveLoop Floorpart1 = new CurveLoop();
CurveLoop Floorpart2 = new CurveLoop();
FloorFilter _onlyFloors = new FloorFilter();
GridFilter _onlyGrids = new GridFilter();
RefPlaneFilter _onlyRefs = new RefPlaneFilter();
Reference floorref = _uidoc.Selection.PickObject(ObjectType.Element, _onlyFloors, "Select Floor:");
//Reference refref = _uidoc.Selection.PickObject(ObjectType.Element, _onlyGrids, "Select Grid:");
List<Grid> allgrids = new FilteredElementCollector(_doc).OfClass(typeof(Grid)).WhereElementIsNotElementType().Cast<Grid>().ToList();
foreach(Grid g in allgrids)
{
ReferencePlane refplane;
using (Transaction newplane = new Transaction(_doc, "newplane"))
{
newplane.Start();
refplane = _doc.Create.NewReferencePlane(g.Curve.GetEndPoint(0), g.Curve.GetEndPoint(1), new XYZ(0, 0, 1), _doc.ActiveView);
newplane.Commit();
}
Floor testfloor = _doc.GetElement(floorref.ElementId) as Floor;
//ReferencePlane refplane = _doc.GetElement(refref.ElementId) as ReferencePlane;
Sketch floorsketch = _doc.GetElement(testfloor.SketchId) as Sketch;
int placeholder = 0;
foreach (CurveArray curvarr in floorsketch.Profile)
{
foreach (Line test in curvarr)
{
floorboundary.Add(test);
}
}
//creating a line to instersect with from the ref plane
XYZ refstart = new XYZ(refplane.BubbleEnd.X, refplane.BubbleEnd.Y, floorboundary.First().GetEndPoint(0).Z);
XYZ refend = new XYZ(refplane.FreeEnd.X, refplane.FreeEnd.Y, floorboundary.First().GetEndPoint(0).Z);
Line refline = Line.CreateBound(refstart, refend);
XYZ firstintersection = null;
IntersectionResultArray intarray = new IntersectionResultArray();
for (int i = 0; i < floorboundary.Count(); i++)
{
SetComparisonResult result = floorboundary[i].Intersect(refline, out intarray);
if (result.Equals(SetComparisonResult.Overlap))
{
foreach (IntersectionResult intpoints in intarray)
{
firstintersection = intpoints.XYZPoint;
Line newline1 = Line.CreateBound(floorboundary[i].GetEndPoint(0), intpoints.XYZPoint);
Line newline2 = Line.CreateBound(intpoints.XYZPoint, floorboundary[i].GetEndPoint(1));
Floorpart1.Append(newline1);
Floorpart2.Append(newline2);
}
placeholder = i + 1;
break;
}
else
{ Floorpart1.Append(floorboundary[i]); }
}
intarray.Clear();
for (int j = placeholder; j < floorboundary.Count(); j++)
{
SetComparisonResult result = floorboundary[j].Intersect(refline, out intarray);
if (result.Equals(SetComparisonResult.Overlap))
{
foreach (IntersectionResult intpoints in intarray)
{
Line newline2 = Line.CreateBound(floorboundary[j].GetEndPoint(0), intpoints.XYZPoint);
Line newline3 = Line.CreateBound(intpoints.XYZPoint, floorboundary[j].GetEndPoint(1));
Line newline4 = Line.CreateBound(intpoints.XYZPoint, firstintersection);
Line newline5 = newline4.CreateReversed() as Line;
Floorpart2.Append(newline2);
Floorpart2.Append(newline4);
Floorpart1.Append(newline5);
Floorpart1.Append(newline3);
}
placeholder = j + 1;
break;
}
else
{ Floorpart2.Append(floorboundary[j]); }
}
intarray.Clear();
for (int k = placeholder; k < floorboundary.Count(); k++)
{
Floorpart1.Append(floorboundary[k]);
}
List<CurveLoop> FirstSide = new List<CurveLoop>() { Floorpart1 };
List<CurveLoop> LastSide = new List<CurveLoop>() { Floorpart2 };
//should probably test if the curveloops are open before continueing
bool test1 = Floorpart1.IsOpen();
bool test2 = Floorpart2.IsOpen();
using (Transaction tr = new Transaction(_doc))
{
tr.Start("Create new floors");
Floor.Create(_doc, FirstSide, testfloor.FloorType.Id, testfloor.LevelId);
Floor.Create(_doc, LastSide, testfloor.FloorType.Id, testfloor.LevelId);
_doc.Delete(testfloor.Id);
tr.Commit();
}
}
//Grid grid = _doc.GetElement(refref) as Grid;
//Reference refref = _uidoc.Selection.PickObject(ObjectType.Element, _onlyRefs, "Select Reference:");
return Result.Succeeded;
}
}
public class FloorFilter : ISelectionFilter
{
//filter for modeled elements
public bool AllowElement(Element elem)
{
if (elem.Category != null)
{
if (elem.Category.Id.IntegerValue.Equals((int)BuiltInCategory.OST_Floors))
{
return true;
}
else { return false; }
}
else { return false; }
}
public bool AllowReference(Reference refer, XYZ loc)
{
return true;
}
}
public class RefPlaneFilter : ISelectionFilter
{
//filter for modeled elements
public bool AllowElement(Element elem)
{
if (elem.Category != null)
{
if (elem.Category.Id.IntegerValue.Equals((int)BuiltInCategory.OST_CLines))
{
return true;
}
else { return false; }
}
else { return false; }
}
public bool AllowReference(Reference refer, XYZ loc)
{
return true;
}
}
public class GridFilter : ISelectionFilter
{
//filter for modeled elements
public bool AllowElement(Element elem)
{
if (elem.Category != null)
{
if (elem.Category.Id.IntegerValue.Equals((int)BuiltInCategory.OST_Grids))
{
return true;
}
else { return false; }
}
else { return false; }
}
public bool AllowReference(Reference refer, XYZ loc)
{
return true;
}
}
}
