/// <summary>
/// Create line element
/// </summary>
/// <param name="app">revit application</param>
/// <param name="ptA">start point</param>
/// <param name="ptB">end point</param>
/// <returns></returns>
public static ModelCurve MakeLine(UIApplication app, Autodesk.Revit.DB.XYZ ptA, Autodesk.Revit.DB.XYZ ptB)
{
Document doc = app.ActiveUIDocument.Document;
// Create plane by the points
Line line = Line.CreateBound(ptA, ptB);
Autodesk.Revit.DB.XYZ norm = ptA.CrossProduct(ptB);
if (norm.GetLength() == 0)
{
norm = Autodesk.Revit.DB.XYZ.BasisZ;
}
Plane plane = app.Application.Create.NewPlane(norm, ptB);
SketchPlane skplane = SketchPlane.Create(doc, plane);
// Create line here
ModelCurve modelcurve = doc.FamilyCreate.NewModelCurve(line, skplane);
return(modelcurve);
}
/// <summary>
/// constructor
/// </summary>
/// <param name="element">The host object, must be family instance</param>
public GeometrySupport(FamilyInstance element)
{
// 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 || 0 == geoElement.Objects.Size)
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));
m_drivingLength = m_drivingVector.GetLength();
}
//get the geometry object
//foreach (GeometryObject geoObject in geoElement.Objects)
Objects.Reset();
while (Objects.MoveNext())
{
GeometryObject geoObject = Objects.Current;
//get the geometry instance which contains 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 works for rectangle beam or column.");
}
}
/// <summary>
/// Detect the obstructions of pipe and resolve them.
/// </summary>
/// <param name="pipe">Pipe to resolve</param>
private void Resolve(Pipe pipe)
{
// Get the centerline of pipe.
Line pipeLine = (pipe.Location as LocationCurve).Curve as Line;
// Calculate the intersection references with pipe's centerline.
List <ReferenceWithContext> obstructionRefArr = m_detector.Obstructions(pipeLine);
// Filter out the references, just allow Pipe, Beam, and Duct.
Filter(pipe, obstructionRefArr);
if (obstructionRefArr.Count == 0)
{
// There are no intersection found.
return;
}
// Calculate the direction of pipe's centerline.
Autodesk.Revit.DB.XYZ dir = pipeLine.GetEndPoint(1) - pipeLine.GetEndPoint(0);
// Build the sections from the intersection references.
List <Section> sections = Section.BuildSections(obstructionRefArr, dir.Normalize());
// Merge the neighbor sections if the distance of them is too close.
for (int i = sections.Count - 2; i >= 0; i--)
{
Autodesk.Revit.DB.XYZ detal = sections[i].End - sections[i + 1].Start;
if (detal.GetLength() < pipe.Diameter * 3)
{
sections[i].Refs.AddRange(sections[i + 1].Refs);
sections.RemoveAt(i + 1);
}
}
// Resolve the obstructions one by one.
foreach (Section sec in sections)
{
Resolve(pipe, sec);
}
// Connect the neighbor sections with pipe and elbow fittings.
//
for (int i = 1; i < sections.Count; i++)
{
// Get the end point from the previous section.
Autodesk.Revit.DB.XYZ start = sections[i - 1].End;
// Get the start point from the current section.
Autodesk.Revit.DB.XYZ end = sections[i].Start;
// Create a pipe between two neighbor section.
Pipe tmpPipe = m_rvtDoc.Create.NewPipe(start, end, pipe.PipeType);
// Copy pipe's parameters values to tmpPipe.
CopyParameters(pipe, tmpPipe);
// Create elbow fitting to connect previous section with tmpPipe.
Connector conn1 = FindConnector(sections[i - 1].Pipes[2], start);
Connector conn2 = FindConnector(tmpPipe, start);
FamilyInstance fi = m_rvtDoc.Create.NewElbowFitting(conn1, conn2);
// Create elbow fitting to connect current section with tmpPipe.
Connector conn3 = FindConnector(sections[i].Pipes[0], end);
Connector conn4 = FindConnector(tmpPipe, end);
FamilyInstance f2 = m_rvtDoc.Create.NewElbowFitting(conn3, conn4);
}
// Find two connectors which pipe's two ends connector connected to.
Connector startConn = FindConnectedTo(pipe, pipeLine.GetEndPoint(0));
Connector endConn = FindConnectedTo(pipe, pipeLine.GetEndPoint(1));
Pipe startPipe = null;
if (null != startConn)
{
// Create a pipe between pipe's start connector and pipe's start section.
startPipe = m_rvtDoc.Create.NewPipe(sections[0].Start, startConn, pipe.PipeType);
}
else
{
// Create a pipe between pipe's start point and pipe's start section.
startPipe = m_rvtDoc.Create.NewPipe(sections[0].Start, pipeLine.GetEndPoint(0), pipe.PipeType);
}
// Copy parameters from pipe to startPipe.
CopyParameters(pipe, startPipe);
// Connect the startPipe and first section with elbow fitting.
Connector connStart1 = FindConnector(startPipe, sections[0].Start);
Connector connStart2 = FindConnector(sections[0].Pipes[0], sections[0].Start);
FamilyInstance fii = m_rvtDoc.Create.NewElbowFitting(connStart1, connStart2);
Pipe endPipe = null;
int count = sections.Count;
if (null != endConn)
{
// Create a pipe between pipe's end connector and pipe's end section.
endPipe = m_rvtDoc.Create.NewPipe(sections[count - 1].End, endConn, pipe.PipeType);
}
else
{
// Create a pipe between pipe's end point and pipe's end section.
endPipe = m_rvtDoc.Create.NewPipe(sections[count - 1].End, pipeLine.GetEndPoint(1), pipe.PipeType);
}
// Copy parameters from pipe to endPipe.
CopyParameters(pipe, endPipe);
// Connect the endPipe and last section with elbow fitting.
Connector connEnd1 = FindConnector(endPipe, sections[count - 1].End);
Connector connEnd2 = FindConnector(sections[count - 1].Pipes[2], sections[count - 1].End);
FamilyInstance fiii = m_rvtDoc.Create.NewElbowFitting(connEnd1, connEnd2);
// Delete the pipe after resolved.
m_rvtDoc.Delete(pipe.Id);
}
/// <summary>
/// constructor
/// </summary>
/// <param name="element">The host object, must be family instance</param>
public GeometrySupport(FamilyInstance element)
{
// get the geometry element of the selected element
Autodesk.Revit.DB.GeometryElement geoElement = element.get_Geometry(new Options());
if (null == geoElement || 0 == geoElement.Objects.Size)
{
throw new Exception("Can't get the geometry of selected element.");
}
AnalyticalModel aModel = element.GetAnalyticalModel();
if (aModel == null)
{
throw new Exception("The selected FamilyInstance don't have AnalyticalModel.");
}
AnalyticalModelSweptProfile swProfile = aModel.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.get_EndPoint(1), line.get_EndPoint(0));
m_drivingLength = m_drivingVector.GetLength();
}
//get the geometry object
foreach (GeometryObject geoObject in geoElement.Objects)
{
//get the geometry instance which contains the geometry information
GeoInstance instance = geoObject as GeoInstance;
if (null != instance)
{
foreach (GeometryObject o in instance.SymbolGeometry.Objects)
{
// 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 works for rectangle beam or column.");
}
}