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RVT24 Customized IFC Export for Rebar Grouping #701

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RVT24 Customized IFC Export for Rebar Grouping #701

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RVT24 Customized IFC Export for Rebar Grouping
zivi78 Nov 6, 2023
f05cdde
Merge branch 'Autodesk:Release_24.x.x' into Release_24.x.x
zivi78 Aug 15, 2024
1aad41a
Cand handle a IfcMaterialRebar to export specific Material Appearances.
zivi78 Aug 15, 2024
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58 changes: 33 additions & 25 deletions Source/Revit.IFC.Export/Exporter/RebarExporter.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -444,7 +444,13 @@ private static ISet<DelayedProductWrapper> ExportRebar(ExporterIFC exporterIFC,
return null;

ElementId materialId = ElementId.InvalidElementId;
ParameterUtil.GetElementIdValueFromElementOrSymbol(rebarElement, BuiltInParameter.MATERIAL_ID_PARAM, out materialId);
Element type = rebarElement.Document.GetElement(rebarElement.GetTypeId());
Parameter specialRebarMaterialParameter = type.LookupParameter("IfcMaterialRebar");

if (specialRebarMaterialParameter != null && specialRebarMaterialParameter.HasValue && specialRebarMaterialParameter.StorageType == StorageType.ElementId && specialRebarMaterialParameter.AsElementId() != null)
materialId = specialRebarMaterialParameter.AsElementId();
else
ParameterUtil.GetElementIdValueFromElementOrSymbol(rebarElement, BuiltInParameter.MATERIAL_ID_PARAM, out materialId);

double longitudinalBarNominalDiameter = 0.0, modelDiameter = 0.0;
GetBarDiameters(rebarItem, out longitudinalBarNominalDiameter, out modelDiameter);
Expand Down Expand Up @@ -477,6 +483,8 @@ private static ISet<DelayedProductWrapper> ExportRebar(ExporterIFC exporterIFC,

ElementId barLengthParamId = new ElementId(BuiltInParameter.REBAR_ELEM_LENGTH);
ParameterSet rebarElementParams = rebarElement.Parameters;
int indexForNamingAndGUID = itemIndex;
HashSet<IFCAnyHandle> bodyItems = new HashSet<IFCAnyHandle>();
for (int ii = 0; ii < numberOfBarPositions; ii++)
{
if (!DoesBarExistAtPosition(rebarItem, ii))
Expand Down Expand Up @@ -506,8 +514,6 @@ private static ISet<DelayedProductWrapper> ExportRebar(ExporterIFC exporterIFC,
}
}

int indexForNamingAndGUID = ii + itemIndex;

string rebarName = NamingUtil.GetNameOverride(rebarElement, rebarNameFormated + ": " + indexForNamingAndGUID);

Transform barTrf = GetBarPositionTransform(rebarItem, ii);
Expand Down Expand Up @@ -539,50 +545,52 @@ private static ISet<DelayedProductWrapper> ExportRebar(ExporterIFC exporterIFC,
Curve curve = ApplyNonConformalTransformIfPossible(baseCurve, barTrf);
if (curve == null)
throw new InvalidOperationException("Couldn't transform rebar curve.");

curves.Add(curve);
}
}

// For IFC4 and Structural Exchange Requirement export, Entity type not allowed for RV: IfcPolyline
IFCAnyHandle compositeCurve = GeometryUtil.CreateCompositeOrIndexedCurve(exporterIFC, curves, null, null);
IFCAnyHandle sweptDiskSolid = IFCInstanceExporter.CreateSweptDiskSolid(file, compositeCurve, modelDiameter / 2, null, 0, endParam);
HashSet<IFCAnyHandle> bodyItems = new HashSet<IFCAnyHandle>() { sweptDiskSolid };
bodyItems.Add(sweptDiskSolid);
RepresentationUtil.CreateStyledItemAndAssign(file, rebarElement.Document, materialId, sweptDiskSolid);

}
IFCAnyHandle contextOfItems = ExporterCacheManager.Get3DContextHandle(IFCRepresentationIdentifier.Body);
IFCAnyHandle shapeRep = RepresentationUtil.CreateAdvancedSweptSolidRep(exporterIFC,
IFCAnyHandle shapeRep = RepresentationUtil.CreateAdvancedSweptSolidRep(exporterIFC,
rebarElement, categoryId, contextOfItems, bodyItems, null);
IList<IFCAnyHandle> shapeReps = new List<IFCAnyHandle>() { shapeRep };
prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps);

IFCAnyHandle copyLevelPlacement = (ii == 0) ? originalPlacement : ExporterUtil.CopyLocalPlacement(file, originalPlacement);

string rebarGUID = (indexForNamingAndGUID < maxBarGUIDS) ?
//IFCAnyHandle copyLevelPlacement = (ii == 0) ? originalPlacement : ExporterUtil.CopyLocalPlacement(file, originalPlacement);
IFCAnyHandle copyLevelPlacement = originalPlacement;

string rebarGUID = (indexForNamingAndGUID < maxBarGUIDS) ?
GUIDUtil.CreateSubElementGUID(rebarElement, indexForNamingAndGUID + (int)IFCReinforcingBarSubElements.BarStart - 1) :
GUIDUtil.GenerateIFCGuidFrom(
GUIDUtil.CreateGUIDString(rebarElement, indexForNamingAndGUID.ToString()));
IFCAnyHandle elemHnd = IFCInstanceExporter.CreateReinforcingBar(exporterIFC, rebarElement, rebarGUID, ExporterCacheManager.OwnerHistoryHandle,
copyLevelPlacement, prodRep, steelGrade, longitudinalBarNominalDiameter, longitudinalBarCrossSectionArea, barLength, role, null);
IFCAnyHandleUtil.OverrideNameAttribute(elemHnd, rebarName);
IFCExportInfoPair exportInfo = new IFCExportInfoPair(IFCEntityType.IfcReinforcingBar);
IFCAnyHandle elemHnd = IFCInstanceExporter.CreateReinforcingBar(exporterIFC, rebarElement, rebarGUID, ExporterCacheManager.OwnerHistoryHandle,
copyLevelPlacement, prodRep, steelGrade, longitudinalBarNominalDiameter, longitudinalBarCrossSectionArea, barLength, role, null);
IFCAnyHandleUtil.OverrideNameAttribute(elemHnd, origRebarName);
IFCExportInfoPair exportInfo = new IFCExportInfoPair(IFCEntityType.IfcReinforcingBar);

// We will not add the element to the productWrapper here, but instead in the function that calls
// ExportRebar. The reason for this is that we don't currently know if the handles such be associated
// to the level or not, depending on whether they will or won't be grouped.
createdRebars.Add(new DelayedProductWrapper(rebarElement, elemHnd, setter.LevelInfo, exportInfo));
// We will not add the element to the productWrapper here, but instead in the function that calls
// ExportRebar. The reason for this is that we don't currently know if the handles such be associated
// to the level or not, depending on whether they will or won't be grouped.
createdRebars.Add(new DelayedProductWrapper(rebarElement, elemHnd, setter.LevelInfo, exportInfo));

CacheSubelementParameterValues(rebarElement, rebarElementParams, ii, elemHnd);
//CacheSubelementParameterValues(rebarElement, rebarElementParams, ii, elemHnd);

ExporterCacheManager.HandleToElementCache.Register(elemHnd, rebarElement.Id);
CategoryUtil.CreateMaterialAssociation(exporterIFC, elemHnd, materialId);
ExporterCacheManager.HandleToElementCache.Register(elemHnd, rebarElement.Id);
CategoryUtil.CreateMaterialAssociation(exporterIFC, elemHnd, materialId);

IFCAnyHandle typeHnd = ExporterUtil.CreateGenericTypeFromElement(rebarElement,
exportInfo, file, productWrapper);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(typeHnd))
{
ExporterCacheManager.TypeRelationsCache.Add(typeHnd, elemHnd);
}
IFCAnyHandle typeHnd = ExporterUtil.CreateGenericTypeFromElement(rebarElement,
exportInfo, file, productWrapper);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(typeHnd))
{
ExporterCacheManager.TypeRelationsCache.Add(typeHnd, elemHnd);
}
}
transaction.Commit();
Expand Down