/// <summary>
/// Create geometry for a particular representation item.
/// </summary>
/// <param name="shapeEditScope">The geometry creation scope.</param>
/// <param name="lcs">Local coordinate system for the geometry, without scale.</param>
/// <param name="scaledLcs">Local coordinate system for the geometry, including scale, potentially non-uniform.</param>
/// <param name="guid">The guid of an element for which represntation is being created.</param>
protected override void CreateShapeInternal(IFCImportShapeEditScope shapeEditScope, Transform lcs, Transform scaledLcs, string guid)
{
if (shapeEditScope.BuilderScope == null)
{
throw new InvalidOperationException("BuilderScope has not been initialised");
}
base.CreateShapeInternal(shapeEditScope, lcs, scaledLcs, guid);
Bound.CreateShape(shapeEditScope, lcs, scaledLcs, guid);
IsValidForCreation = Bound.IsValidForCreation;
if (shapeEditScope.BuilderType == IFCShapeBuilderType.TessellatedShapeBuilder)
{
CreateTessellatedShapeInternal(shapeEditScope, scaledLcs);
}
}
/// <summary>
/// Create geometry for a particular representation item.
/// </summary>
/// <param name="shapeEditScope">The geometry creation scope.</param>
/// <param name="lcs">Local coordinate system for the geometry, without scale.</param>
/// <param name="scaledLcs">Local coordinate system for the geometry, including scale, potentially non-uniform.</param>
/// <param name="guid">The guid of an element for which represntation is being created.</param>
protected override void CreateShapeInternal(IFCImportShapeEditScope shapeEditScope, Transform lcs, Transform scaledLcs, string guid)
{
TessellatedShapeBuilderScope tsBuilderScope = shapeEditScope.BuilderScope as TessellatedShapeBuilderScope;
if (tsBuilderScope == null)
{
throw new InvalidOperationException("BuilderScope has not been initialised");
}
base.CreateShapeInternal(shapeEditScope, lcs, scaledLcs, guid);
Bound.CreateShape(shapeEditScope, lcs, scaledLcs, guid);
IList <XYZ> loopVertices = Bound.LoopVertices;
int count = 0;
if (loopVertices == null || ((count = loopVertices.Count) == 0))
{
throw new InvalidOperationException("#" + Id + ": missing loop vertices, ignoring.");
}
if (count < 3)
{
throw new InvalidOperationException("#" + Id + ": too few loop vertices (" + count + "), ignoring.");
}
if (!Orientation)
{
loopVertices.Reverse();
}
// Apply the transform
IList <XYZ> transformedVertices = new List <XYZ>();
foreach (XYZ vertex in loopVertices)
{
transformedVertices.Add(scaledLcs.OfPoint(vertex));
}
// Check that the loop vertices don't contain points that are very close to one another;
// if so, throw the point away and hope that the TessellatedShapeBuilder can repair the result.
// Warn in this case. If the entire boundary is bad, report an error and don't add the loop vertices.
IList <XYZ> validVertices;
IFCGeometryUtil.CheckAnyDistanceVerticesWithinTolerance(Id, shapeEditScope, transformedVertices, out validVertices);
// We are going to catch any exceptions if the loop is invalid.
// We are going to hope that we can heal the parent object in the TessellatedShapeBuilder.
bool bPotentiallyAbortFace = false;
count = validVertices.Count;
if (validVertices.Count < 3)
{
Importer.TheLog.LogComment(Id, "Too few distinct loop vertices (" + count + "), ignoring.", false);
bPotentiallyAbortFace = true;
}
else
{
try
{
tsBuilderScope.AddLoopVertices(Id, validVertices);
}
catch (InvalidOperationException ex)
{
Importer.TheLog.LogComment(Id, ex.Message, false);
bPotentiallyAbortFace = true;
}
}
if (bPotentiallyAbortFace && IsOuter)
{
tsBuilderScope.AbortCurrentFace();
}
}
