public static IsEqual ( Autodesk first, Autodesk second ) : bool | ||
first | Autodesk | The first Autodesk.Revit.DB.XYZ point |
second | Autodesk | The second Autodesk.Revit.DB.XYZ point |
return | bool |
/// <summary> /// Get two vectors, which indicate some edge direction which contain given point, /// set the given point as the start point, the other end point of the edge as end /// </summary> /// <param name="point">A point of the swept profile</param> /// <returns>Two vectors indicate edge direction</returns> protected List <Autodesk.Revit.DB.XYZ> GetRelatedVectors(Autodesk.Revit.DB.XYZ point) { // Initialize the return vector list. List <Autodesk.Revit.DB.XYZ> vectors = new List <Autodesk.Revit.DB.XYZ>(); // Get all the edges which contain this point. // And get the vector from this point to another point foreach (Line line in m_edges) { if (GeomUtil.IsEqual(point, line.GetEndPoint(0))) { Autodesk.Revit.DB.XYZ vector = GeomUtil.SubXYZ(line.GetEndPoint(1), line.GetEndPoint(0)); vectors.Add(vector); } if (GeomUtil.IsEqual(point, line.GetEndPoint(1))) { Autodesk.Revit.DB.XYZ vector = GeomUtil.SubXYZ(line.GetEndPoint(0), line.GetEndPoint(1)); vectors.Add(vector); } } // only two vectors(directions) should be found if (2 != vectors.Count) { throw new Exception("A point on swept profile should have only two directions."); } return(vectors); }
/// <summary> /// Get the swept profile(face) of the host object(family instance) /// </summary> /// <param name="solid">The solid reference</param> /// <returns>The swept profile</returns> private Face GetSweptProfileFace(Solid solid) { // Get a point on the swept profile from all points in solid Autodesk.Revit.DB.XYZ refPoint = new Autodesk.Revit.DB.XYZ(); // the point on swept profile foreach (Edge edge in solid.Edges) { List <XYZ> points = edge.Tessellate() as List <XYZ>; //get end points of the edge if (2 != points.Count) // make sure all edges are lines { throw new Exception("Each edge should be a line."); } // get two points of the edge. All points in solid should be transformed first Autodesk.Revit.DB.XYZ first = Transform(points[0]); // start point of edge Autodesk.Revit.DB.XYZ second = Transform(points[1]); // end point of edge // some edges should be paralleled with the driving line, // and the start point of that edge should be the wanted point Autodesk.Revit.DB.XYZ edgeVector = GeomUtil.SubXYZ(second, first); if (GeomUtil.IsSameDirection(edgeVector, m_drivingVector)) { refPoint = first; break; } if (GeomUtil.IsOppositeDirection(edgeVector, m_drivingVector)) { refPoint = second; break; } } // Find swept profile(face) Face sweptFace = null; // define the swept face foreach (Face face in solid.Faces) { if (null != sweptFace) { break; } // the swept face should be perpendicular with the driving line if (!GeomUtil.IsVertical(face, m_drivingLine, m_transform, null)) { continue; } // use the point to get the swept face foreach (Autodesk.Revit.DB.XYZ point in face.Triangulate().Vertices) { Autodesk.Revit.DB.XYZ pnt = Transform(point); // all points in solid should be transformed if (GeomUtil.IsEqual(refPoint, pnt)) { sweptFace = face; break; } } } return(sweptFace); }