override protected void Process(IFCAnyHandle ifcPolyLoop)
{
base.Process(ifcPolyLoop);
List <IFCAnyHandle> ifcPolygon =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcPolyLoop, "Polygon");
if (ifcPolygon == null)
{
return; // TODO: WARN
}
Polygon = IFCPoint.ProcessScaledLengthIFCCartesianPoints(ifcPolygon);
int numVertices = Polygon.Count;
if (numVertices > 1)
{
if (Polygon[0].IsAlmostEqualTo(Polygon[numVertices - 1]))
{
// LOG: Warning: #: First and last points are almost identical, removing extra point.
Polygon.RemoveAt(numVertices - 1);
numVertices--;
}
}
if (numVertices < 3)
{
throw new InvalidOperationException("#" + ifcPolyLoop.StepId + ": Polygon attribute has only " + numVertices + " vertices, 3 expected.");
}
}
override protected void Process(IFCAnyHandle ifcPolyLoop)
{
base.Process(ifcPolyLoop);
List <IFCAnyHandle> ifcPolygon =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcPolyLoop, "Polygon");
if (ifcPolygon == null)
{
return; // TODO: WARN
}
Polygon = IFCPoint.ProcessScaledLengthIFCCartesianPoints(ifcPolygon);
// Check for duplicate points, including wrapping around, and remove them.
int numVertices = Polygon.Count;
for (int ii = numVertices - 1; (ii != -1) && numVertices >= 3; ii--)
{
if (MathUtil.IsAlmostEqualAbsolute(Polygon[ii], Polygon[(ii + 1) % numVertices]))
{
Importer.TheLog.LogError(ifcPolyLoop.StepId, "The polygon vertex at index " + ii + " is a duplicate, removing.", false);
Polygon.RemoveAt(ii);
numVertices--;
}
}
if (numVertices < 3)
{
// This used to throw an error. However, we found files that threw this error
// thousands of times, causing incredibly slow links. Instead, null out the
// data and log an error.
Polygon = null;
Importer.TheLog.LogError(ifcPolyLoop.StepId, "Polygon attribute has only " + numVertices + " vertices, 3 expected.", false);
}
}
override protected void Process(IFCAnyHandle ifcPolyLoop)
{
base.Process(ifcPolyLoop);
List <IFCAnyHandle> ifcPolygon =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcPolyLoop, "Polygon");
if (ifcPolygon == null)
{
return; // TODO: WARN
}
Polygon = IFCPoint.ProcessScaledLengthIFCCartesianPoints(ifcPolygon);
int numVertices = Polygon.Count;
if (numVertices > 1)
{
if (MathUtil.IsAlmostEqualAbsolute(Polygon[0], Polygon[numVertices - 1]))
{
// LOG: Warning: #: First and last points are almost identical, removing extra point.
Polygon.RemoveAt(numVertices - 1);
numVertices--;
}
}
if (numVertices < 3)
{
// This used to throw an error. However, we found files that threw this error
// thousands of times, causing incredibly slow links. Instead, null out the
// data and log an error.
Polygon = null;
Importer.TheLog.LogError(ifcPolyLoop.StepId, "Polygon attribute has only " + numVertices + " vertices, 3 expected.", false);
}
}
protected override void Process(IFCAnyHandle ifcSurface)
{
base.Process(ifcSurface);
bool foundUDegree = false;
UDegree = IFCImportHandleUtil.GetRequiredIntegerAttribute(ifcSurface, "UDegree", out foundUDegree);
if (!foundUDegree)
{
Importer.TheLog.LogError(ifcSurface.StepId, "Cannot find the UDegree attribute of this surface", true);
}
bool foundVDegree = false;
VDegree = IFCImportHandleUtil.GetRequiredIntegerAttribute(ifcSurface, "VDegree", out foundVDegree);
if (!foundVDegree)
{
Importer.TheLog.LogError(ifcSurface.StepId, "Cannot find the VDegree attribute of this surface", true);
}
IList <IList <IFCAnyHandle> > controlPoints = IFCImportHandleUtil.GetListOfListOfInstanceAttribute(ifcSurface, "ControlPointsList");
if (controlPoints == null || controlPoints.Count == 0)
{
Importer.TheLog.LogError(ifcSurface.StepId, "This surface has invalid number of control points", true);
}
List <IFCAnyHandle> controlPointsTmp = new List <IFCAnyHandle>();
foreach (List <IFCAnyHandle> list in controlPoints)
{
controlPointsTmp.AddRange(list);
}
ControlPointsList = IFCPoint.ProcessScaledLengthIFCCartesianPoints(controlPointsTmp);
bool foundUClosed = false;
UClosed = IFCImportHandleUtil.GetOptionalLogicalAttribute(ifcSurface, "UClosed", out foundUClosed);
if (!foundUClosed)
{
Importer.TheLog.LogWarning(ifcSurface.StepId, "Cannot find the UClosed attribute of this surface, setting to Unknown", true);
UClosed = IFCLogical.Unknown;
}
bool foundVClosed = false;
VClosed = IFCImportHandleUtil.GetOptionalLogicalAttribute(ifcSurface, "VClosed", out foundVClosed);
if (!foundVClosed)
{
Importer.TheLog.LogWarning(ifcSurface.StepId, "Cannot find the VClosed attribute of this surface, setting to Unknown", true);
VClosed = IFCLogical.Unknown;
}
}
