//根据参照点和法向量创建放样截面，针对中间截面对象
private ReferenceArray CreatePlaneByPoint(ReferencePoint refPt, XYZ normal)
{
Plane plane = new Plane(normal, refPt.Position);
Arc circle = Arc.Create(plane, mmToFeet(300), 0, 2 * Math.PI);
ModelCurve modelcurve = m_familyCreator.NewModelCurve(circle, SketchPlane.Create(massdoc, plane));
ReferenceArray ra = new ReferenceArray();
ra.Append(modelcurve.GeometryCurve.Reference);
return(ra);
}
/// <summary>
/// Utility method to create a truss model curve.
/// </summary>
/// <param name="start">The start point.</param>
/// <param name="end">The end point.</param>
/// <param name="sketchPlane">The sketch plane for the new curve.</param>
/// <param name="type">The type of truss curve.</param>
/// <returns>the created truss model curve.</returns>
private ModelCurve MakeTrussCurve(Autodesk.Revit.DB.XYZ start, Autodesk.Revit.DB.XYZ end, SketchPlane sketchPlane, TrussCurveType type)
{
Line line = Line.CreateBound(start, end);
ModelCurve trussCurve = m_familyCreator.NewModelCurve(line, sketchPlane);
trussCurve.TrussCurveType = type;
m_document.Regenerate();
return(trussCurve);
}