/// <summary>
/// Add the oriented edge to the current loop
/// </summary>
/// <param name="id">the id of the edge, corresponding to the StepID of the IfcOrientedEdge</param>
/// <param name="curve">the curve, which represents the geometry of the edge</param>
/// <param name="startPoint">the start point of the curve</param>
/// <param name="endPoint">the end point of the curve</param>
/// <param name="orientation">the orientation of the edge</param>
/// <returns>true if the edge is successfully added to the boundary</returns>
public bool AddOrientedEdgeToTheBoundary(int id, Curve curve, XYZ startPoint, XYZ endPoint, bool orientation)
{
if (m_CurrentBrepBuilderLoop == null)
{
throw new InvalidOperationException("StartCollectingLoopForBrepBuilder hasn't been called");
}
BRepBuilderGeometryId edgeId = null;
if (m_EdgeIdToBrepId.ContainsKey(id) && m_EdgeIdToBrepId[id] != null)
{
edgeId = m_EdgeIdToBrepId[id];
}
else
{
//TODO: create an utility function MakeBound(Curve, XYZ, XYZ) and factor out this code
BRepBuilderEdgeGeometry edge = null;
if (curve is Line)
{
edge = BRepBuilderEdgeGeometry.Create(startPoint, endPoint);
}
else if (curve is Arc)
{
Arc arc = curve as Arc;
// The curve we receive is an unbound arc, so we have to bound it by the startPoint and the endPoint
IntersectionResult start = arc.Project(startPoint);
IntersectionResult end = arc.Project(endPoint);
double startParameter = start.Parameter;
double endParameter = end.Parameter;
if (endParameter < startParameter)
{
endParameter += Math.PI * 2;
}
arc.MakeBound(startParameter, endParameter);
edge = BRepBuilderEdgeGeometry.Create(arc);
}
else if (curve is Ellipse)
{
Ellipse ellipse = curve as Ellipse;
IntersectionResult start = ellipse.Project(startPoint);
IntersectionResult end = ellipse.Project(endPoint);
double startParameter = start.Parameter;
double endParameter = end.Parameter;
if (endParameter < startParameter)
{
endParameter += Math.PI * 2;
}
ellipse.MakeBound(startParameter, endParameter);
edge = BRepBuilderEdgeGeometry.Create(ellipse);
}
else if (curve is NurbSpline)
{
NurbSpline nurbs = curve as NurbSpline;
// Bound the NurbSpline based on the start and end points.
// As mentioned above, there should be a function to bound
// a curve based on two 3D points and it should be used here
// instead of duplicating manual code.
IntersectionResult start = nurbs.Project(startPoint);
IntersectionResult end = nurbs.Project(endPoint);
double startParameter = start.Parameter;
double endParameter = end.Parameter;
if (endParameter < startParameter)
{
Importer.TheLog.LogError(id, "Inverted start/end parameters for NurbSpline.", false /*throwError*/);
return(false);
}
else
{
nurbs.MakeBound(startParameter, endParameter);
}
edge = BRepBuilderEdgeGeometry.Create(nurbs);
}
else
{
Importer.TheLog.LogError(id, "Unsupported edge curve type: " + curve.GetType().ToString(), false);
return(false);
}
edgeId = m_BrepBuilder.AddEdge(edge);
m_EdgeIdToBrepId.Add(id, edgeId);
}
try
{
m_BrepBuilder.AddCoEdge(m_CurrentBrepBuilderLoop, edgeId, !orientation);
}
catch
{
return(false);
}
return(true);
}