public Inflate ( int index, double value ) : void | ||
index | int | index of direction, 0 => start, 1 => end |
value | double | |
return | void |
/// <summary> /// This method will find out a route to avoid the obstruction. /// </summary> /// <param name="pipe">Pipe to resolve</param> /// <param name="section">Pipe's one obstruction</param> /// <returns>A route which can avoid the obstruction</returns> private Line FindRoute(Pipe pipe, Section section) { // Perpendicular direction minimal length. double minLength = pipe.Diameter * 2; // Parallel direction jump step. double jumpStep = pipe.Diameter; // Calculate the directions in which to find the solution. List <Autodesk.Revit.DB.XYZ> dirs = new List <Autodesk.Revit.DB.XYZ>(); Autodesk.Revit.DB.XYZ crossDir = null; foreach (ReferenceWithContext gref in section.Refs) { Element elem = m_rvtDoc.GetElement(gref.GetReference()); Line locationLine = (elem.Location as LocationCurve).Curve as Line; Autodesk.Revit.DB.XYZ refDir = locationLine.GetEndPoint(1) - locationLine.GetEndPoint(0); refDir = refDir.Normalize(); if (refDir.IsAlmostEqualTo(section.PipeCenterLineDirection) || refDir.IsAlmostEqualTo(-section.PipeCenterLineDirection)) { continue; } crossDir = refDir.CrossProduct(section.PipeCenterLineDirection); dirs.Add(crossDir.Normalize()); break; } // When all the obstruction are parallel with the centerline of the pipe, // We can't calculate the direction from the vector.Cross method. if (dirs.Count == 0) { // Calculate perpendicular directions with dir in four directions. List <Autodesk.Revit.DB.XYZ> perDirs = PerpendicularDirs(section.PipeCenterLineDirection, 4); dirs.Add(perDirs[0]); dirs.Add(perDirs[1]); } Line foundLine = null; while (null == foundLine) { // Extend the section interval by jumpStep. section.Inflate(0, jumpStep); section.Inflate(1, jumpStep); // Find solution in the given directions. for (int i = 0; null == foundLine && i < dirs.Count; i++) { // Calculate the intersections. List <ReferenceWithContext> obs1 = m_detector.Obstructions(section.Start, dirs[i]); List <ReferenceWithContext> obs2 = m_detector.Obstructions(section.End, dirs[i]); // Filter out the intersection result. Filter(pipe, obs1); Filter(pipe, obs2); // Find out the minimal intersections in two opposite direction. ReferenceWithContext[] mins1 = GetClosestSectionsToOrigin(obs1); ReferenceWithContext[] mins2 = GetClosestSectionsToOrigin(obs2); // Find solution in the given direction and its opposite direction. for (int j = 0; null == foundLine && j < 2; j++) { if (mins1[j] != null && Math.Abs(mins1[j].Proximity) < minLength || mins2[j] != null && Math.Abs(mins2[j].Proximity) < minLength) { continue; } // Calculate the maximal height that the parallel line can be reached. double maxHight = 1000 * pipe.Diameter; if (mins1[j] != null && mins2[j] != null) { maxHight = Math.Min(Math.Abs(mins1[j].Proximity), Math.Abs(mins2[j].Proximity)); } else if (mins1[j] != null) { maxHight = Math.Abs(mins1[j].Proximity); } else if (mins2[j] != null) { maxHight = Math.Abs(mins2[j].Proximity); } Autodesk.Revit.DB.XYZ dir = (j == 1) ? dirs[i] : -dirs[i]; // Calculate the parallel line which can avoid obstructions. foundLine = FindParallelLine(pipe, section, dir, maxHight); } } } return(foundLine); }
/// <summary> /// This method will find out a route to avoid the obstruction. /// </summary> /// <param name="pipe">Pipe to resolve</param> /// <param name="section">Pipe's one obstruction</param> /// <returns>A route which can avoid the obstruction</returns> private Line FindRoute(Pipe pipe, Section section) { // Perpendicular direction minimal length. double minLength = pipe.Diameter * 2; // Parallel direction jump step. double jumpStep = pipe.Diameter; // Calculate the directions in which to find the solution. List<Autodesk.Revit.DB.XYZ > dirs = new List<Autodesk.Revit.DB.XYZ >(); Autodesk.Revit.DB.XYZ crossDir = null; foreach (ReferenceWithContext gref in section.Refs) { Element elem = m_rvtDoc.GetElement(gref.GetReference()); Line locationLine = (elem.Location as LocationCurve).Curve as Line; Autodesk.Revit.DB.XYZ refDir = locationLine.get_EndPoint(1) - locationLine.get_EndPoint(0); refDir = refDir.Normalize(); if (refDir.IsAlmostEqualTo(section.PipeCenterLineDirection) || refDir.IsAlmostEqualTo(-section.PipeCenterLineDirection)) { continue; } crossDir = refDir.CrossProduct(section.PipeCenterLineDirection); dirs.Add(crossDir.Normalize()); break; } // When all the obstruction are parallel with the centerline of the pipe, // We can't calculate the direction from the vector.Cross method. if (dirs.Count == 0) { // Calculate perpendicular directions with dir in four directions. List<Autodesk.Revit.DB.XYZ > perDirs = PerpendicularDirs(section.PipeCenterLineDirection, 4); dirs.Add(perDirs[0]); dirs.Add(perDirs[1]); } Line foundLine = null; while (null == foundLine) { // Extend the section interval by jumpStep. section.Inflate(0, jumpStep); section.Inflate(1, jumpStep); // Find solution in the given directions. for (int i = 0; null == foundLine && i < dirs.Count; i++) { // Calculate the intersections. List<ReferenceWithContext> obs1 = m_detector.Obstructions(section.Start, dirs[i]); List<ReferenceWithContext> obs2 = m_detector.Obstructions(section.End, dirs[i]); // Filter out the intersection result. Filter(pipe, obs1); Filter(pipe, obs2); // Find out the minimal intersections in two opposite direction. ReferenceWithContext[] mins1 = GetClosestSectionsToOrigin(obs1); ReferenceWithContext[] mins2 = GetClosestSectionsToOrigin(obs2); // Find solution in the given direction and its opposite direction. for (int j = 0; null == foundLine && j < 2; j++) { if (mins1[j] != null && Math.Abs(mins1[j].Proximity) < minLength || mins2[j] != null && Math.Abs(mins2[j].Proximity) < minLength) { continue; } // Calculate the maximal height that the parallel line can be reached. double maxHight = 1000 * pipe.Diameter; if (mins1[j] != null && mins2[j] != null) { maxHight = Math.Min(Math.Abs(mins1[j].Proximity), Math.Abs(mins2[j].Proximity)); } else if(mins1[j] != null) { maxHight = Math.Abs(mins1[j].Proximity); } else if (mins2[j] != null) { maxHight = Math.Abs(mins2[j].Proximity); } Autodesk.Revit.DB.XYZ dir = (j == 1) ? dirs[i] : -dirs[i]; // Calculate the parallel line which can avoid obstructions. foundLine = FindParallelLine(pipe, section, dir, maxHight); } } } return foundLine; }