/// <summary>
/// Get the hook orient of the top rebar
/// </summary>
/// <param name="geomInfo">the rebar geometry support information</param>
/// <param name="location">the location of top rebar</param>
/// <returns>the hook orient of the top hook</returns>
private RebarHookOrientation GetTopHookOrient(RebarGeometry geomInfo, TopRebarLocation location)
{
// Top center rebar doesn't need hook.
if (TopRebarLocation.Center == location)
{
throw new Exception("Center top rebar doesn't have any hook.");
}
// Get the hook direction, rebar normal and rebar line
Autodesk.Revit.DB.XYZ hookVec = m_geometry.GetDownDirection();
Autodesk.Revit.DB.XYZ normal = geomInfo.Normal;
Line rebarLine = geomInfo.Curves[0] as Line;
// get the top start hook orient
if (TopRebarLocation.Start == location)
{
Autodesk.Revit.DB.XYZ curveVec = GeomUtil.SubXYZ(rebarLine.GetEndPoint(1), rebarLine.GetEndPoint(0));
return(GeomUtil.GetHookOrient(curveVec, normal, hookVec));
}
else // get the top end hook orient
{
Autodesk.Revit.DB.XYZ curveVec = GeomUtil.SubXYZ(rebarLine.GetEndPoint(0), rebarLine.GetEndPoint(1));
return(GeomUtil.GetHookOrient(curveVec, normal, hookVec));
}
}
/// <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 edge 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 vector(direction) should be found
if (2 != vectors.Count)
{
throw new Exception("a point on swept profile should have only two direction.");
}
return(vectors);
}
/// <summary>
/// Create the transverse rebars, according to the location of transverse rebars
/// </summary>
/// <param name="location">location of rebar which need to be created</param>
/// <returns>the created rebar, return null if the creation is unsuccessful</returns>
public Rebar FillTransverseBar(TransverseRebarLocation location)
{
// Get the geometry information which support rebar creation
RebarGeometry geomInfo = new RebarGeometry();
switch (location)
{
case TransverseRebarLocation.Start: // start transverse rebar
case TransverseRebarLocation.End: // end transverse rebar
geomInfo = m_geometry.GetTransverseRebar(location, m_transverseEndSpacing);
break;
case TransverseRebarLocation.Center:// center transverse rebar
geomInfo = m_geometry.GetTransverseRebar(location, m_transverseCenterSpacing);
break;
}
RebarHookOrientation startHook = RebarHookOrientation.Right;
RebarHookOrientation endHook = RebarHookOrientation.Left;
if (!GeomUtil.IsInRightDir(geomInfo.Normal))
{
startHook = RebarHookOrientation.Left;
endHook = RebarHookOrientation.Right;
}
// create the rebar
return(PlaceRebars(m_transverseType, m_transverseHookType, m_transverseHookType,
geomInfo, startHook, endHook));
}
/// <summary>
/// Get the geometry information of bottom rebar
/// </summary>
/// <returns>the gotten geometry information</returns>
public RebarGeometry GetBottomRebar()
{
// sort the points of the swept profile
XYZHeightComparer comparer = new XYZHeightComparer();
m_points.Sort(comparer);
// Get the normal parameter for bottom rebar creation
List <Autodesk.Revit.DB.XYZ> directions = GetRelatedVectors(m_points[0]);
directions.Sort(comparer);
Autodesk.Revit.DB.XYZ normal = directions[0];
double offset = BeamRebarData.BottomOffset; //offset value of the rebar
int rebarNumber = BeamRebarData.BottomRebarNumber; //the number of the rebar
// the spacing of the rebar
double spacing = (m_beamWidth - 2 * offset) / (rebarNumber - 1);
// Get the curve which define the shape of the bottom rebar curve
List <Autodesk.Revit.DB.XYZ> movedPoints = OffsetPoints(offset);
Autodesk.Revit.DB.XYZ startPoint = movedPoints[0]; //get the coordinate of startpoint
//get the coordinate of endpoint
Autodesk.Revit.DB.XYZ endPoint = GeomUtil.OffsetPoint(startPoint, m_drivingVector, m_beamLength);
IList <Curve> curves = new List <Curve>(); //the profile of the bottom rebar
curves.Add(Line.CreateBound(startPoint, endPoint));
// return the rebar geometry information
return(new RebarGeometry(normal, curves, rebarNumber, spacing));
}
/// <summary>
/// Get the geometry information for top rebar
/// </summary>
/// <param name="location">indicate where top rebar is placed</param>
/// <returns>the gotten geometry information</returns>
public RebarGeometry GetTopRebar(TopRebarLocation location)
{
// sort the points of the swept profile
XYZHeightComparer comparer = new XYZHeightComparer();
m_points.Sort(comparer);
// Get the normal parameter for rebar creation
List <Autodesk.Revit.DB.XYZ> directions = GetRelatedVectors(m_points[3]);
directions.Sort(comparer);
Autodesk.Revit.DB.XYZ normal = directions[1];
double offset = 0; //the offset from the beam surface to the rebar
double startPointOffset = 0; // the offset of start point from swept profile
double rebarLength = m_beamLength / 3; //the length of the rebar
int rebarNumber = BeamRebarData.TopRebarNumber; //the number of the rebar
// set offset and startPointOffset according to the location of rebar
switch (location)
{
case TopRebarLocation.Start: // top start rebar
offset = BeamRebarData.TopEndOffset;
break;
case TopRebarLocation.Center: // top center rebar
offset = BeamRebarData.TopCenterOffset;
startPointOffset = m_beamLength / 3 - 0.5;
rebarLength = m_beamLength / 3 + 1;
break;
case TopRebarLocation.End: // top end rebar
offset = BeamRebarData.TopEndOffset;
startPointOffset = m_beamLength * 2 / 3;
break;
default:
throw new Exception("The program should never go here.");
}
// Get the curve which define the shape of the top rebar curve
List <Autodesk.Revit.DB.XYZ> movedPoints = OffsetPoints(offset);
Autodesk.Revit.DB.XYZ startPoint = movedPoints[movedPoints.Count - 1];
// offset the start point according startPointOffset
startPoint = GeomUtil.OffsetPoint(startPoint, m_drivingVector, startPointOffset);
// get the coordinate of endpoint
Autodesk.Revit.DB.XYZ endPoint = GeomUtil.OffsetPoint(startPoint, m_drivingVector, rebarLength);
IList <Curve> curves = new List <Curve>(); //the profile of the top rebar
curves.Add(Line.CreateBound(startPoint, endPoint));
// the spacing of the rebar
double spacing = spacing = (m_beamWidth - 2 * offset) / (rebarNumber - 1);
// return the rebar geometry information
return(new RebarGeometry(normal, curves, rebarNumber, spacing));
}
/// <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("All edge should be line.");
}
// get two points of the edge. All points in solid should be transform 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 parallelled 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 gotted 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 transform
if (GeomUtil.IsEqual(refPoint, pnt))
{
sweptFace = face;
break;
}
}
}
return(sweptFace);
}
/// <summary>
/// Get the width of the column
/// </summary>
/// <returns>the width data</returns>
private double GetColumnWidth()
{
XYZHeightComparer comparer = new XYZHeightComparer();
m_points.Sort(comparer);
Autodesk.Revit.DB.XYZ refPoint = m_points[0];
List <Autodesk.Revit.DB.XYZ> directions = GetRelatedVectors(refPoint);
directions.Sort(comparer);
return(GeomUtil.GetLength(directions[1]));
}
int IComparer <Autodesk.Revit.DB.XYZ> .Compare(Autodesk.Revit.DB.XYZ first, Autodesk.Revit.DB.XYZ second)
{
// first compare z coordinate, then y coordinate, at last x coordinate
if (GeomUtil.IsEqual(first.Z, second.Z))
{
if (GeomUtil.IsEqual(first.Y, second.Y))
{
if (GeomUtil.IsEqual(first.X, second.X))
{
return(0);
}
return((first.X > second.X) ? 1 : -1);
}
return((first.Y > second.Y) ? 1 : -1);
}
return((first.Z > second.Z) ? 1 : -1);
}
/// <summary>
/// get the orient of hook accroding to curve direction, rebar normal and hook direction
/// </summary>
/// <param name="curveVec">the curve direction</param>
/// <param name="normal">rebar normal direction</param>
/// <param name="hookVec">the hook direction</param>
/// <returns>the orient of the hook</returns>
public static RebarHookOrientation GetHookOrient(Autodesk.Revit.DB.XYZ curveVec, Autodesk.Revit.DB.XYZ normal, Autodesk.Revit.DB.XYZ hookVec)
{
Autodesk.Revit.DB.XYZ tempVec = normal;
for (int i = 0; i < 4; i++)
{
tempVec = GeomUtil.CrossMatrix(tempVec, curveVec);
if (GeomUtil.IsSameDirection(tempVec, hookVec))
{
if (i == 0)
{
return(RebarHookOrientation.Right);
}
else if (i == 2)
{
return(RebarHookOrientation.Left);
}
}
}
throw new Exception("Can't find the hook orient according to hook direction.");
}
/// <summary>
/// Offset the points of the swept profile to make the points inside swept profile
/// </summary>
/// <param name="offset">indicate how long to offset on two directions</param>
/// <returns>the offset points</returns>
protected List <Autodesk.Revit.DB.XYZ> OffsetPoints(double offset)
{
// Initialize the offset point list.
List <Autodesk.Revit.DB.XYZ> points = new List <Autodesk.Revit.DB.XYZ>();
// Get all points of the swept profile, and offset it in two related direction
foreach (Autodesk.Revit.DB.XYZ point in m_points)
{
// Get two related directions
List <Autodesk.Revit.DB.XYZ> directions = GetRelatedVectors(point);
Autodesk.Revit.DB.XYZ firstDir = directions[0];
Autodesk.Revit.DB.XYZ secondDir = directions[1];
// offset the point in two direction
Autodesk.Revit.DB.XYZ movedPoint = GeomUtil.OffsetPoint(point, firstDir, offset);
movedPoint = GeomUtil.OffsetPoint(movedPoint, secondDir, offset);
// add the offset point into the array
points.Add(movedPoint);
}
return(points);
}
/// <summary>
/// Get the geometry information of the transverse rebar
/// </summary>
/// <param name="location">the location of transverse rebar</param>
/// <param name="spacing">the spacing value of the rebar</param>
/// <returns>the gotted geometry information</returns>
public RebarGeometry GetTransverseRebar(TransverseRebarLocation location, double spacing)
{
// sort the points of the swept profile
XYZHeightComparer comparer = new XYZHeightComparer();
m_points.Sort(comparer);
// the offset from the column surface to the rebar
double offset = ColumnRebarData.TransverseOffset;
//the length of the transverse rebar
double rebarLength = 0;
// get the origin and normal parameter for rebar creation
Autodesk.Revit.DB.XYZ normal = m_drivingVector;
double curveOffset = 0;
//set rebar length and origin according to the location of rebar
switch (location)
{
case TransverseRebarLocation.Start: // start transverse rebar
rebarLength = m_columnHeight / 4;
break;
case TransverseRebarLocation.Center: // center transverse rebar
rebarLength = m_columnHeight / 2;
curveOffset = m_columnHeight / 4 + (rebarLength % spacing) / 2;
break;
case TransverseRebarLocation.End: // end transverse rebar
rebarLength = m_columnHeight / 4;
curveOffset = m_columnHeight - rebarLength + (rebarLength % spacing);
break;
default:
throw new Exception("The program should never go here.");
}
// the number of the transverse rebar
int rebarNumber = (int)(rebarLength / spacing) + 1;
// get the profile of the transverse rebar
List <Autodesk.Revit.DB.XYZ> movedPoints = OffsetPoints(offset);
List <Autodesk.Revit.DB.XYZ> translatedPoints = new List <Autodesk.Revit.DB.XYZ>();
foreach (Autodesk.Revit.DB.XYZ point in movedPoints)
{
translatedPoints.Add(GeomUtil.OffsetPoint(point, m_drivingVector, curveOffset));
}
IList <Curve> curves = new List <Curve>(); //the profile of the transverse rebar
Autodesk.Revit.DB.XYZ first = translatedPoints[0];
Autodesk.Revit.DB.XYZ second = translatedPoints[1];
Autodesk.Revit.DB.XYZ third = translatedPoints[2];
Autodesk.Revit.DB.XYZ fourth = translatedPoints[3];
curves.Add(Line.CreateBound(first, second));
curves.Add(Line.CreateBound(second, fourth));
curves.Add(Line.CreateBound(fourth, third));
curves.Add(Line.CreateBound(third, first));
// return the rebar geometry information
return(new RebarGeometry(normal, curves, rebarNumber, spacing));
}
/// <summary>
/// Get the geometry information of vertical rebar
/// </summary>
/// <param name="location">the location of vertical rebar</param>
/// <param name="rebarNumber">the spacing value of the rebar</param>
/// <returns>the gotted geometry information</returns>
public RebarGeometry GetVerticalRebar(VerticalRebarLocation location, int rebarNumber)
{
// sort the points of the swept profile
XYZHeightComparer comparer = new XYZHeightComparer();
m_points.Sort(comparer);
// Get the offset and rebar length of rebar
double offset = ColumnRebarData.VerticalOffset;
double rebarLength = m_columnHeight + 3; //the length of rebar
// Get the start point of the vertical rebar curve
Autodesk.Revit.DB.XYZ startPoint = m_drivingLine.GetEndPoint(0);
List <Autodesk.Revit.DB.XYZ> movedPoints = OffsetPoints(offset);
movedPoints.Sort(comparer);
Autodesk.Revit.DB.XYZ normal = new Autodesk.Revit.DB.XYZ(); // the normal parameter
double rebarOffset = 0; // rebar offset, equal to rebarNumber* spacing
// get the normal, start point and rebar offset of vertical rebar
switch (location)
{
case VerticalRebarLocation.East: //vertical rebar in east
normal = new Autodesk.Revit.DB.XYZ(0, 1, 0);
rebarOffset = m_columnWidth - 2 * offset;
startPoint = movedPoints[1];
break;
case VerticalRebarLocation.North: //vertical rebar in north
normal = new Autodesk.Revit.DB.XYZ(-1, 0, 0);
rebarOffset = m_columnLength - 2 * offset;
startPoint = movedPoints[3];
break;
case VerticalRebarLocation.West: //vertical rebar in west
normal = new Autodesk.Revit.DB.XYZ(0, -1, 0);
rebarOffset = m_columnWidth - 2 * offset;
startPoint = movedPoints[2];
break;
case VerticalRebarLocation.South: //vertical rebar in south
normal = new Autodesk.Revit.DB.XYZ(1, 0, 0);
rebarOffset = m_columnLength - 2 * offset;
startPoint = movedPoints[0];
break;
default:
break;
}
double spacing = rebarOffset / rebarNumber; //spacing value of the rebar
Autodesk.Revit.DB.XYZ endPoint = GeomUtil.OffsetPoint(startPoint, m_drivingVector, rebarLength);
IList <Curve> curves = new List <Curve>(); //profile of the rebar
curves.Add(Line.CreateBound(startPoint, endPoint));
// return the rebar geometry information
return(new RebarGeometry(normal, curves, rebarNumber, spacing));
}
/// <summary>
/// constructor
/// </summary>
/// <param name="element">the host object, must be family instance</param>
/// <param name="geoOptions">the geometry option</param>
public GeometrySupport(FamilyInstance element, Options geoOptions)
{
// get the geometry element of the selected element
Autodesk.Revit.DB.GeometryElement geoElement = element.get_Geometry(new Options());
IEnumerator <GeometryObject> Objects = geoElement.GetEnumerator();
if (null == geoElement || !Objects.MoveNext())
{
throw new Exception("Can't get the geometry of selected element.");
}
SweptProfile swProfile = element.GetSweptProfile();
if (swProfile == null || !(swProfile.GetDrivingCurve() is Line))
{
throw new Exception("The selected element driving curve is not a line.");
}
// get the driving path and vector of the beam or column
Line line = swProfile.GetDrivingCurve() as Line;
if (null != line)
{
m_drivingLine = line; // driving path
m_drivingVector = GeomUtil.SubXYZ(line.GetEndPoint(1), line.GetEndPoint(0));
}
//get the geometry object
Objects.Reset();
//foreach (GeometryObject geoObject in geoElement.Objects)
while (Objects.MoveNext())
{
GeometryObject geoObject = Objects.Current;
//get the geometry instance which contain the geometry information
GeoInstance instance = geoObject as GeoInstance;
if (null != instance)
{
//foreach (GeometryObject o in instance.SymbolGeometry.Objects)
IEnumerator <GeometryObject> Objects1 = instance.SymbolGeometry.GetEnumerator();
while (Objects1.MoveNext())
{
GeometryObject o = Objects1.Current;
// get the solid of beam of column
Solid solid = o as Solid;
// do some checks.
if (null == solid)
{
continue;
}
if (0 == solid.Faces.Size || 0 == solid.Edges.Size)
{
continue;
}
m_solid = solid;
//get the transform value of instance
m_transform = instance.Transform;
// Get the swept profile curves information
if (!GetSweptProfile(solid))
{
throw new Exception("Can't get the swept profile curves.");
}
break;
}
}
}
// do some checks about profile curves information
if (null == m_edges)
{
throw new Exception("Can't get the geometry edge information.");
}
if (4 != m_points.Count)
{
throw new Exception("The sample only work for rectangular beams or columns.");
}
}
/// <summary>
/// Get the length of driving line
/// </summary>
/// <returns>the length of the driving line</returns>
protected double GetDrivingLineLength()
{
return(GeomUtil.GetLength(m_drivingVector));
}
/// <summary>
/// transform the point to new coordinates
/// </summary>
/// <param name="point">the point need to transform</param>
/// <returns>the changed point</returns>
protected Autodesk.Revit.DB.XYZ Transform(Autodesk.Revit.DB.XYZ point)
{
// only invoke the TransformPoint() method.
return(GeomUtil.TransformPoint(point, m_transform));
}
