/// <summary>
/// Deep clone, to avoid mess up the original data during offsetting the boundary.
/// </summary>
/// <returns>Cloned object</returns>
public Trapezoid Clone()
{
return(new Trapezoid(
Top.Clone() as Line,
Vertical.Clone() as Line,
Bottom.Clone() as Line,
Slanted.Clone() as Line));
}
/// <summary>
/// Draw the trapezoid wire-frame with Revit Model curves.
/// It's for debug use, to help developer see the exact location.
/// </summary>
/// <param name="revitDoc">Revit DB Document</param>
public void Draw(Document revitDoc)
{
XYZ topDir = (Top.GetEndPoint(1) - Top.GetEndPoint(0)).Normalize();
XYZ verticalDir = (Vertical.GetEndPoint(0) - Vertical.GetEndPoint(1)).Normalize();
XYZ normal = topDir.CrossProduct(verticalDir);
SketchPlane sketchplane = SketchPlane.Create(revitDoc, new Plane(normal, Vertical.GetEndPoint(0)));
CurveArray curves = new CurveArray();
curves.Append(Top.Clone());
curves.Append(Vertical.Clone());
curves.Append(Bottom.Clone());
curves.Append(Slanted.Clone());
revitDoc.Create.NewModelCurveArray(curves, sketchplane);
}