/// <summary>
/// Base implementation to export IFC site object.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="document">The Revit document. It may be null if element isn't.</param>
/// <param name="element">The element. It may be null if document isn't.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
private static void ExportSiteBase(ExporterIFC exporterIFC, Document document, Element element, GeometryElement geometryElement, ProductWrapper productWrapper)
{
IFCAnyHandle siteHandle = exporterIFC.GetSite();
int numSiteElements = (!IFCAnyHandleUtil.IsNullOrHasNoValue(siteHandle) ? 1 : 0);
if (element == null && (numSiteElements != 0))
{
return;
}
Document doc = document;
if (doc == null)
{
if (element != null)
{
doc = element.Document;
}
else
{
throw new ArgumentException("Both document and element are null.");
}
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
IFCAnyHandle siteRepresentation = null;
if (element != null)
{
// It would be possible that they actually represent several different sites with different buildings,
// but until we have a concept of a building in Revit, we have to assume 0-1 sites, 1 building.
bool appendedToSite = false;
bool exportAsFacetation = !ExporterCacheManager.ExportOptionsCache.ExportAsCoordinationView2;
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(siteHandle))
{
IList <IFCAnyHandle> representations = IFCAnyHandleUtil.GetProductRepresentations(siteHandle);
if (representations.Count > 0)
{
IFCAnyHandle bodyRep = representations[0];
IFCAnyHandle boundaryRep = null;
if (representations.Count > 1)
{
boundaryRep = representations[1];
}
siteRepresentation = RepresentationUtil.CreateSurfaceProductDefinitionShape(exporterIFC, element, geometryElement, true, exportAsFacetation, ref bodyRep, ref boundaryRep);
if (representations.Count == 1 && !IFCAnyHandleUtil.IsNullOrHasNoValue(boundaryRep))
{
// If the first site has no boundaryRep,
// we will add the boundaryRep from second site to it.
representations.Clear();
representations.Add(boundaryRep);
IFCAnyHandleUtil.AddProductRepresentations(siteHandle, representations);
}
appendedToSite = true;
}
}
if (!appendedToSite)
{
siteRepresentation = RepresentationUtil.CreateSurfaceProductDefinitionShape(exporterIFC, element, geometryElement, true, exportAsFacetation);
}
}
List <int> latitude = new List <int>();
List <int> longitude = new List <int>();
ProjectLocation projLocation = doc.ActiveProjectLocation;
IFCAnyHandle relativePlacement = null;
double unscaledElevation = 0.0;
if (projLocation != null)
{
const double scaleToDegrees = 180 / Math.PI;
double latitudeInDeg = projLocation.SiteLocation.Latitude * scaleToDegrees;
double longitudeInDeg = projLocation.SiteLocation.Longitude * scaleToDegrees;
ExporterUtil.GetSafeProjectPositionAngle(doc, out unscaledElevation);
int latDeg = ((int)latitudeInDeg); latitudeInDeg -= latDeg; latitudeInDeg *= 60;
int latMin = ((int)latitudeInDeg); latitudeInDeg -= latMin; latitudeInDeg *= 60;
int latSec = ((int)latitudeInDeg); latitudeInDeg -= latSec; latitudeInDeg *= 1000000;
int latFracSec = ((int)latitudeInDeg);
latitude.Add(latDeg);
latitude.Add(latMin);
latitude.Add(latSec);
if (!ExporterCacheManager.ExportOptionsCache.ExportAs2x2)
{
latitude.Add(latFracSec);
}
int longDeg = ((int)longitudeInDeg); longitudeInDeg -= longDeg; longitudeInDeg *= 60;
int longMin = ((int)longitudeInDeg); longitudeInDeg -= longMin; longitudeInDeg *= 60;
int longSec = ((int)longitudeInDeg); longitudeInDeg -= longSec; longitudeInDeg *= 1000000;
int longFracSec = ((int)longitudeInDeg);
longitude.Add(longDeg);
longitude.Add(longMin);
longitude.Add(longSec);
if (!ExporterCacheManager.ExportOptionsCache.ExportAs2x2)
{
longitude.Add(longFracSec);
}
Transform siteSharedCoordinatesTrf = projLocation.GetTransform().Inverse;
if (!siteSharedCoordinatesTrf.IsIdentity)
{
double unscaledSiteElevation = ExporterCacheManager.ExportOptionsCache.IncludeSiteElevation ? 0.0 : unscaledElevation;
XYZ orig = UnitUtil.ScaleLength(siteSharedCoordinatesTrf.Origin - new XYZ(0, 0, unscaledSiteElevation));
relativePlacement = ExporterUtil.CreateAxis2Placement3D(file, orig, siteSharedCoordinatesTrf.BasisZ, siteSharedCoordinatesTrf.BasisX);
}
}
// Get elevation for site.
double elevation = UnitUtil.ScaleLength(unscaledElevation);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(relativePlacement))
{
relativePlacement = ExporterUtil.CreateAxis2Placement3D(file);
}
IFCAnyHandle localPlacement = IFCInstanceExporter.CreateLocalPlacement(file, null, relativePlacement);
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string siteObjectType = NamingUtil.CreateIFCObjectName(exporterIFC, element);
ProjectInfo projectInfo = doc.ProjectInformation;
Element mainSiteElement = (element != null) ? element : projectInfo;
bool exportSite = false;
string siteGUID = null;
string siteName = null;
string siteLongName = null;
string siteLandTitleNumber = null;
string siteDescription = null;
if (element != null)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(siteHandle))
{
exportSite = true;
// We will use the Project Information site name as the primary name, if it exists.
siteGUID = GUIDUtil.CreateSiteGUID(doc, element);
siteName = NamingUtil.GetOverrideStringValue(projectInfo, "SiteName", NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element)));
siteDescription = NamingUtil.GetDescriptionOverride(element, null);
siteObjectType = NamingUtil.GetObjectTypeOverride(element, siteObjectType);
// Look in site element for "IfcLongName" or project information for either "IfcLongName" or "SiteLongName".
siteLongName = NamingUtil.GetLongNameOverride(projectInfo, NamingUtil.GetLongNameOverride(element, null));
if (string.IsNullOrWhiteSpace(siteLongName))
{
siteLongName = NamingUtil.GetOverrideStringValue(projectInfo, "SiteLongName", null);
}
// Look in site element for "IfcLandTitleNumber" or project information for "SiteLandTitleNumber".
siteLandTitleNumber = NamingUtil.GetOverrideStringValue(element, "IfcLandTitleNumber", null);
if (string.IsNullOrWhiteSpace(siteLandTitleNumber))
{
siteLandTitleNumber = NamingUtil.GetOverrideStringValue(projectInfo, "SiteLandTitleNumber", null);
}
}
}
else
{
exportSite = true;
siteGUID = GUIDUtil.CreateProjectLevelGUID(doc, IFCProjectLevelGUIDType.Site);
siteName = NamingUtil.GetOverrideStringValue(projectInfo, "SiteName", "Default");
siteLongName = NamingUtil.GetLongNameOverride(projectInfo, NamingUtil.GetOverrideStringValue(projectInfo, "SiteLongName", null));
siteLandTitleNumber = NamingUtil.GetOverrideStringValue(projectInfo, "SiteLandTitleNumber", null);
// don't bother if we have nothing in the site whatsoever.
if ((latitude.Count == 0 || longitude.Count == 0) && IFCAnyHandleUtil.IsNullOrHasNoValue(relativePlacement) &&
string.IsNullOrWhiteSpace(siteLongName) && string.IsNullOrWhiteSpace(siteLandTitleNumber))
{
return;
}
}
if (exportSite)
{
siteHandle = IFCInstanceExporter.CreateSite(file, siteGUID, ownerHistory, siteName, siteDescription, siteObjectType, localPlacement,
siteRepresentation, siteLongName, Toolkit.IFCElementComposition.Element, latitude, longitude, elevation, siteLandTitleNumber, null);
productWrapper.AddSite(mainSiteElement, siteHandle);
exporterIFC.SetSite(siteHandle);
}
tr.Commit();
}
}