public void GetWallGrossAreaAndRollBack()
{
var testModel = Utils.GetTestModel("walls.rvt");
var doc = xru.OpenDoc(testModel);
var walls = new FilteredElementCollector(doc).WhereElementIsNotElementType().OfCategory(BuiltInCategory.OST_Walls).ToElements();
var wall = walls[0] as Wall;
double grossArea = 0;
var inserts = wall.FindInserts(true, true, true, true);
xru.Run(() =>
{
using (Transaction transaction = new Transaction(doc, "Temporary - only to get gross area"))
{
transaction.Start();
foreach (ElementId insertId in inserts)
{
doc.Delete(insertId);
}
doc.Regenerate();
var wallFaceReference = HostObjectUtils.GetSideFaces(wall, ShellLayerType.Exterior);
var face = doc.GetElement(wallFaceReference.First()).GetGeometryObjectFromReference(wallFaceReference.First()) as PlanarFace;
var wallFaceEdges = face.GetEdgesAsCurveLoops();
grossArea = ExporterIFCUtils.ComputeAreaOfCurveLoops(wallFaceEdges);
transaction.RollBack();
}
}, doc).Wait();
Assert.True(grossArea > 0);
}
public int Compare(CurveArray x, CurveArray y)
{
IList <CurveLoop> curveLoopX = new List <CurveLoop> {
CurveArrayToCurveLoop(x)
};
double areaX = ExporterIFCUtils.ComputeAreaOfCurveLoops(curveLoopX);
IList <CurveLoop> curveLoopY = new List <CurveLoop> {
CurveArrayToCurveLoop(y)
};
double areaY = ExporterIFCUtils.ComputeAreaOfCurveLoops(curveLoopY);
if (areaX < areaY)
{
return(1);
}
if (areaX > areaY)
{
return(-1);
}
else
{
return(0);
}
}
/// <summary>
/// 获取房间最外圈的CurveLoop
/// </summary>
/// <param name="room"></param>
/// <returns></returns>
public static CurveLoop GetRoomMaxCurveLoop(this Room room)
{
var loops = GetRoomBoundaryAsCurveLoopArray(room);
if (loops != null && loops.Count > 0)
{
return(loops.OrderBy(x =>
ExporterIFCUtils.ComputeAreaOfCurveLoops(new List <CurveLoop> {
x
})).LastOrDefault());
}
return(null);
}
/// <summary>
/// Calculates a CurveArray that corresponds the perimeter of a building given all its internal loops.
/// The building MUST be surround by walls.
/// </summary>
/// <returns>
/// Returns a CurveArray that corresponds to the house perimeter.
/// </returns>
public CurveArray GetHousePerimeter()
{
foreach (Room room in Rooms)
{
// if there more than 1 loop, that means that this circuit represents the external area
IList <IList <BoundarySegment> > loops = GetRoomLoops(room);
if (loops.Count > 1)
{
// first of all we find the closed loop with the smaller area
double minArea = double.MaxValue;
IList <BoundarySegment> perimeterSegments = null;
foreach (IList <BoundarySegment> singleLoop in loops)
{
double area = 0;
// transforms the boundary segments into a CurveLoop
CurveLoop currentCurve = new CurveLoop();
foreach (BoundarySegment seg in singleLoop)
{
currentCurve.Append(seg.GetCurve());
}
// save the segments with the smaller area, which represents the house perimeter
IList <CurveLoop> curveLoopList = new List <CurveLoop> {
currentCurve
};
area = ExporterIFCUtils.ComputeAreaOfCurveLoops(curveLoopList);
if (area < minArea)
{
minArea = area;
perimeterSegments = singleLoop;
}
}
// and then we create a curve array with the boundary segments of that loop
return(BoundarySegmentToCurveArray(perimeterSegments));
}
}
return(null);
}
/// <summary>
/// Creates an opening from extrusion data.
/// </summary>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="hostObjHnd">The host handle.</param>
/// <param name="hostPlacement">The host placement.</param>
/// <param name="hostElement">The host element.</param>
/// <param name="insertElement">The opening element.</param>
/// <param name="openingGUID">The opening GUID.</param>
/// <param name="extrusionData">The extrusion data.</param>
/// <param name="plane">The plane.</param>
/// <param name="isRecess">True if it is a recess.</param>
/// <returns>The opening handle.</returns>
static public IFCAnyHandle CreateOpening(ExporterIFC exporterIFC, IFCAnyHandle hostObjHnd, IFCAnyHandle hostPlacement, Element hostElement,
Element insertElement, string openingGUID, IFCExtrusionData extrusionData, Plane plane, bool isRecess,
PlacementSetter setter, ProductWrapper localWrapper)
{
IFCFile file = exporterIFC.GetFile();
IList <CurveLoop> curveLoops = extrusionData.GetLoops();
if (curveLoops.Count == 0)
{
return(null);
}
if (plane == null)
{
// assumption: first curve loop defines the plane.
if (!curveLoops[0].HasPlane())
{
return(null);
}
plane = curveLoops[0].GetPlane();
}
ElementId catId = CategoryUtil.GetSafeCategoryId(insertElement);
IFCAnyHandle openingProdRepHnd = RepresentationUtil.CreateExtrudedProductDefShape(exporterIFC, insertElement, catId,
curveLoops, plane, extrusionData.ExtrusionDirection, extrusionData.ScaledExtrusionLength);
string openingObjectType = isRecess ? "Recess" : "Opening";
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string openingName = NamingUtil.GetNameOverride(insertElement, null);
if (string.IsNullOrEmpty(openingName))
{
openingName = NamingUtil.GetNameOverride(hostElement, NamingUtil.CreateIFCObjectName(exporterIFC, hostElement));
}
IFCAnyHandle openingHnd = IFCInstanceExporter.CreateOpeningElement(file, openingGUID, ownerHistory, openingName, null,
openingObjectType, ExporterUtil.CreateLocalPlacement(file, hostPlacement, null), openingProdRepHnd, null);
IFCExtrusionCreationData ecData = null;
if (ExporterCacheManager.ExportOptionsCache.ExportBaseQuantities)
{
double height, width;
ecData = new IFCExtrusionCreationData();
if (GeometryUtil.ComputeHeightWidthOfCurveLoop(curveLoops[0], plane, out height, out width))
{
ecData.ScaledHeight = UnitUtil.ScaleLength(height);
ecData.ScaledWidth = UnitUtil.ScaleLength(width);
}
else
{
double area = ExporterIFCUtils.ComputeAreaOfCurveLoops(curveLoops);
ecData.ScaledArea = UnitUtil.ScaleArea(area);
}
PropertyUtil.CreateOpeningQuantities(exporterIFC, openingHnd, ecData);
}
if (localWrapper != null)
{
Element elementForProperties = null;
if (GUIDUtil.IsGUIDFor(insertElement, openingGUID))
{
elementForProperties = insertElement;
}
localWrapper.AddElement(elementForProperties, openingHnd, setter, ecData, true);
}
string voidGuid = GUIDUtil.CreateGUID();
IFCInstanceExporter.CreateRelVoidsElement(file, voidGuid, ownerHistory, null, null, hostObjHnd, openingHnd);
return(openingHnd);
}
/// <summary>
/// 计算多边形的面积
/// </summary>
/// <param name="loops"></param>
/// <returns></returns>
public static double ComputeArea(this IList <CurveLoop> loops)
{
return(ExporterIFCUtils.ComputeAreaOfCurveLoops(loops));
}
/// <summary>
/// 计算面积
/// </summary>
/// <param name="loop"></param>
/// <returns></returns>
public static double ComputeArea(this CurveLoop loop)
{
return(ExporterIFCUtils.ComputeAreaOfCurveLoops(new List <CurveLoop> {
loop
}));
}
public double GetWallCutArea(
FamilyInstance fi,
Wall wall)
{
Document doc = fi.Document;
XYZ cutDir = null;
CurveLoop curveLoop
= ExporterIFCUtils.GetInstanceCutoutFromWall(
fi.Document, wall, fi, out cutDir);
IList <CurveLoop> loops = new List <CurveLoop>(1);
loops.Add(curveLoop);
if (!wall.IsStackedWallMember)
{
return(ExporterIFCUtils.ComputeAreaOfCurveLoops(loops));
}
else
{
// Will not get multiple stacked walls with
// varying thickness due to the nature of rooms.
// Use ReferenceIntersector if we can identify
// those missing room faces...open for suggestions.
SolidHandler solHandler = new SolidHandler();
Options optCompRef
= doc.Application.Create.NewGeometryOptions();
if (null != optCompRef)
{
optCompRef.ComputeReferences = true;
optCompRef.DetailLevel = ViewDetailLevel.Medium;
}
GeometryElement geomElemHost
= wall.get_Geometry(optCompRef)
as GeometryElement;
Solid solidOpening = GeometryCreationUtilities
.CreateExtrusionGeometry(loops,
cutDir.Negate(), .1);
Solid solidHost
= solHandler.CreateSolidFromBoundingBox(
null, geomElemHost.GetBoundingBox(), null);
// We dont really care about the boundingbox
// rotation as we only need the intersected solid.
if (solidHost == null)
{
return(0);
}
Solid intersectSolid = BooleanOperationsUtils
.ExecuteBooleanOperation(solidOpening,
solidHost, BooleanOperationsType.Intersect);
if (intersectSolid.Faces.Size.Equals(0))
{
solidOpening = GeometryCreationUtilities
.CreateExtrusionGeometry(loops, cutDir, .1);
intersectSolid = BooleanOperationsUtils
.ExecuteBooleanOperation(solidOpening,
solidHost, BooleanOperationsType.Intersect);
}
if (DebugHandler.EnableSolidUtilityVolumes)
{
using (Transaction t = new Transaction(doc))
{
t.Start("Stacked1");
ShapeCreator.CreateDirectShape(doc,
intersectSolid, "stackedOpening");
t.Commit();
}
}
return(solHandler.GetLargestFaceArea(
intersectSolid));
}
}