/// <summary>
/// Processes IfcSpatialStructureElement handle.
/// </summary>
/// <param name="ifcSpatialStructureElement">The IfcSpatialStructureElement handle.</param>
/// <returns>The IFCSpatialStructureElement object.</returns>
public static IFCSpatialStructureElement ProcessIFCSpatialStructureElement(IFCAnyHandle ifcSpatialStructureElement)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(ifcSpatialStructureElement))
{
Importer.TheLog.LogNullError(IFCEntityType.IfcSpatialStructureElement);
return(null);
}
IFCEntity spatialStructureElement;
if (IFCImportFile.TheFile.EntityMap.TryGetValue(ifcSpatialStructureElement.StepId, out spatialStructureElement))
{
return(spatialStructureElement as IFCSpatialStructureElement);
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcSpatialStructureElement, IFCEntityType.IfcSpace))
{
return(IFCSpace.ProcessIFCSpace(ifcSpatialStructureElement));
}
else if (IFCAnyHandleUtil.IsSubTypeOf(ifcSpatialStructureElement, IFCEntityType.IfcBuildingStorey))
{
return(IFCBuildingStorey.ProcessIFCBuildingStorey(ifcSpatialStructureElement));
}
else if (IFCAnyHandleUtil.IsSubTypeOf(ifcSpatialStructureElement, IFCEntityType.IfcSite))
{
return(IFCSite.ProcessIFCSite(ifcSpatialStructureElement));
}
else if (IFCAnyHandleUtil.IsSubTypeOf(ifcSpatialStructureElement, IFCEntityType.IfcBuilding))
{
return(IFCBuilding.ProcessIFCBuilding(ifcSpatialStructureElement));
}
return(new IFCSpatialStructureElement(ifcSpatialStructureElement));
}
/// <summary>
/// Removes the relative transform for a site.
/// </summary>
public static void RemoveRelativeTransformForSite(IFCSite site)
{
if (site == null || site.ObjectLocation == null || site.ObjectLocation.RelativeTransform == null)
{
return;
}
site.ObjectLocation.RelativeTransform = Transform.Identity;
}
/// <summary>
/// Processes object placement of the product.
/// </summary>
/// <param name="ifcProduct">The IfcProduct handle.</param>
protected void ProcessObjectPlacement(IFCAnyHandle ifcProduct)
{
IFCAnyHandle objectPlacement = IFCAnyHandleUtil.GetInstanceAttribute(ifcProduct, "ObjectPlacement");
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(objectPlacement))
{
ObjectLocation = IFCLocation.ProcessIFCObjectPlacement(objectPlacement);
AddLocationToPlacementBoundingBox();
IFCSite.CheckObjectPlacementIsRelativeToSite(this, ifcProduct.StepId, objectPlacement);
}
}
public void Dispose()
{
ActiveSite = null;
}
public ActiveSiteSetter(IFCSite ifcSite)
{
ActiveSite = ifcSite;
}
/// <summary>
/// Removes the relative transform for a site.
/// </summary>
public static void RemoveRelativeTransformForSite(IFCSite site)
{
if (site == null || site.ObjectLocation == null || site.ObjectLocation.RelativeTransform == null)
return;
site.ObjectLocation.RelativeTransform = Transform.Identity;
}
/// <summary>
/// Creates or populates Revit elements based on the information contained in this class.
/// </summary>
/// <param name="doc">The document.</param>
protected override void Create(Document doc)
{
if (UnitsInContext != null)
{
Units documentUnits = new Units(doc.DisplayUnitSystem == DisplayUnit.METRIC ?
UnitSystem.Metric : UnitSystem.Imperial);
foreach (IFCUnit unit in UnitsInContext)
{
if (!IFCUnit.IsNullOrInvalid(unit))
{
try
{
FormatOptions formatOptions = new FormatOptions(unit.Unit);
formatOptions.SetSymbolTypeId(unit.Symbol);
documentUnits.SetFormatOptions(unit.Spec, formatOptions);
}
catch (Exception ex)
{
Importer.TheLog.LogError(unit.Id, ex.Message, false);
}
}
}
doc.SetUnits(documentUnits);
}
// We will randomize unused grid names so that they don't conflict with new entries with the same name.
// This is only for relink.
foreach (ElementId gridId in Importer.TheCache.GridNameToElementMap.Values)
{
Grid grid = doc.GetElement(gridId) as Grid;
if (grid == null)
{
continue;
}
// Note that new Guid() is useless - it creates a GUID of all 0s.
grid.Name = Guid.NewGuid().ToString();
}
// Pre-process sites to orient them properly.
IList <IFCSite> sites = new List <IFCSite>();
foreach (IFCObjectDefinition objectDefinition in ComposedObjectDefinitions)
{
if (objectDefinition is IFCSite)
{
sites.Add(objectDefinition as IFCSite);
}
}
IFCSite.ProcessSiteLocations(doc, sites);
base.Create(doc);
// IfcProject usually won't create an element, as it contains no geometry.
// If it doesn't, use the ProjectInfo element in the document to store its parameters.
if (CreatedElementId == ElementId.InvalidElementId)
{
CreatedElementId = Importer.TheCache.ProjectInformationId;
}
}
public static void ProcessSiteLocations(Document doc, IList <IFCSite> sites)
{
BaseSiteOffset = null;
// Ideally, in most cases, this routine will do nothing. In particular, that is
// true if the project has an arbitrary number of sites that are "close" to the
// origin.
if (sites == null || sites.Count == 0)
{
return;
}
ProjectLocation projectLocation = doc.ActiveProjectLocation;
if (projectLocation == null)
{
return;
}
// If there is one site, and it is far from the origin, then we will move the site
// close to the origin, give a warning, and set the shared coordinates in the file.
// If there is more than one site, and at least one site is far from the origin:
// 1. If all of the sites have an origin close to one another, then we will move the
// site close to the origin based on the first site encountered, give a warning,
// and set the shared coordinates in the file and the rest of the sites relative to
// the first site.
// 2. If the sites do not have origins close to one another, then we will do nothing
// and give an error that the site is far from the origin and may have poor
// performance and appearance.
int numSites = sites.Count;
bool hasSiteLocation = false;
// First pass: deal with latitude and longitude.
for (int ii = 0; ii < numSites; ii++)
{
IFCSite currSite = sites[ii];
// Set the project latitude and longitude if the information is available, and
// it hasn't already been set.
SiteLocation siteLocation = projectLocation.GetSiteLocation();
if (siteLocation != null)
{
// Some Tekla files may have invalid information here that would otherwise cause the
// link to fail. Recover with a warning.
try
{
bool foundSiteLocation = (currSite.RefLatitude.HasValue && currSite.RefLongitude.HasValue);
if (foundSiteLocation)
{
if (hasSiteLocation)
{
Importer.TheLog.LogWarning(currSite.Id, "Duplicate latitude or longitude value supplied for IFCSITE, ignoring.", false);
}
else
{
hasSiteLocation = true;
siteLocation.Latitude = currSite.RefLatitude.Value * Math.PI / 180.0;
siteLocation.Longitude = currSite.RefLongitude.Value * Math.PI / 180.0;
}
}
}
catch (Exception ex)
{
Importer.TheLog.LogWarning(currSite.Id, "Invalid latitude or longitude value supplied for IFCSITE: " + ex.Message, false);
}
}
}
int?distantOriginFirstSiteId = null;
for (int ii = 0; ii < numSites; ii++)
{
IFCSite currSite = sites[ii];
// This is effectively no offset. This is good, as long as we don't have
// a distance origin. In that case, we will warn and not do any special offsets.
if (currSite.ObjectLocation?.RelativeTransform == null)
{
if (distantOriginFirstSiteId.HasValue)
{
BaseSiteOffset = null;
break;
}
continue;
}
XYZ projectLoc = currSite.ObjectLocation.RelativeTransform.Origin;
XYZ offset = new XYZ(projectLoc.X, projectLoc.Y, projectLoc.Z);
if (XYZ.IsWithinLengthLimits(offset))
{
if (distantOriginFirstSiteId.HasValue)
{
BaseSiteOffset = null;
break;
}
continue;
}
if (BaseSiteOffset == null)
{
distantOriginFirstSiteId = currSite.Id;
// If the index is greater than 0, then we have found some sites close to the
// origin. That means we have incompatible origins which is an issue.
if (ii == 0)
{
BaseSiteOffset = offset;
}
else
{
break;
}
}
}
if (BaseSiteOffset != null)
{
// Modify the RelativeTransforms for each of these sites.
// Note that the RelativeTransform must be defined to have gotten here.
for (int ii = 0; ii < numSites; ii++)
{
XYZ currentOffset =
new XYZ(-BaseSiteOffset.X, -BaseSiteOffset.Y, -BaseSiteOffset.Z /*+ sites[ii].RefElevation*/);
Transform newSiteTransform = sites[ii].ObjectLocation.TotalTransform;
newSiteTransform.Origin += currentOffset;
sites[ii].ObjectLocation = IFCLocation.CreateDummyLocation(newSiteTransform);
}
// Register the offset by moving the Shared Coordinates away
ProjectPosition pPos = projectLocation.GetProjectPosition(XYZ.Zero);
pPos.EastWest += BaseSiteOffset.X;
pPos.NorthSouth += BaseSiteOffset.Y;
pPos.Elevation += BaseSiteOffset.Z;
projectLocation.SetProjectPosition(XYZ.Zero, pPos);
}
else
{
// In this case, we just have to make sure that the RefElevation is included in
// the site transform.
for (int ii = 0; ii < numSites; ii++)
{
if (MathUtil.IsAlmostZero(sites[ii].RefElevation))
{
continue;
}
if (sites[ii].ObjectLocation == null || sites[ii].ObjectLocation.RelativeTransform == null)
{
XYZ currentOffset = XYZ.Zero;
sites[ii].ObjectLocation = IFCLocation.CreateDummyLocation(Transform.CreateTranslation(currentOffset));
}
else
{
double currRefElevation = sites[ii].RefElevation;
double currZOffset = sites[ii].ObjectLocation.RelativeTransform.Origin.Z;
if (!MathUtil.IsAlmostEqual(currZOffset, currRefElevation))
{
Transform newSiteTransform = sites[ii].ObjectLocation.TotalTransform;
sites[ii].ObjectLocation = IFCLocation.CreateDummyLocation(newSiteTransform);
}
}
}
}
if (BaseSiteOffset == null && distantOriginFirstSiteId.HasValue)
{
Importer.TheLog.LogError(distantOriginFirstSiteId.Value, "There are multiple sites in the file that are located far away from each other. This may result in poor visualization of the data.", false);
}
}