/// <summary>
/// Located the buttom of a slab object.
/// </summary>
/// <param name="floor">A floor object.</param>
/// <param name="bubbleEnd">The bubble end of new reference plane.</param>
/// <param name="freeEnd">The free end of new reference plane.</param>
/// <param name="thirdPnt">The third point of new reference plane.</param>
private void LocateSlab(Floor floor, ref Autodesk.Revit.DB.XYZ bubbleEnd, ref Autodesk.Revit.DB.XYZ freeEnd, ref Autodesk.Revit.DB.XYZ thirdPnt)
{
//Obtain the geometry data of the floor.
GElement geometry = floor.get_Geometry(m_options);
Face buttomFace = null;
//foreach (GeometryObject go in geometry.Objects)
IEnumerator <GeometryObject> Objects = geometry.GetEnumerator();
while (Objects.MoveNext())
{
GeometryObject go = Objects.Current;
Solid solid = go as Solid;
if (null == solid)
{
continue;
}
else
{
//Get the bottom face of this floor.
buttomFace = GeoHelper.GetBottomFace(solid.Faces);
}
}
Mesh mesh = buttomFace.Triangulate();
GeoHelper.Distribute(mesh, ref bubbleEnd, ref freeEnd, ref thirdPnt);
}
/// <summary>
/// Located the exterior of a wall object.
/// </summary>
/// <param name="wall">A wall object</param>
/// <param name="bubbleEnd">The bubble end of new reference plane.</param>
/// <param name="freeEnd">The free end of new reference plane.</param>
/// <param name="cutVec">The cut vector of new reference plane.</param>
private void LocateWall(Wall wall, ref Autodesk.Revit.DB.XYZ bubbleEnd, ref Autodesk.Revit.DB.XYZ freeEnd, ref Autodesk.Revit.DB.XYZ cutVec)
{
LocationCurve location = wall.Location as LocationCurve;
Curve locaCurve = location.Curve;
//Not work for wall without location.
if (null == locaCurve)
{
throw new Exception("This wall has no location.");
}
//Not work for arc wall.
Line line = locaCurve as Line;
if (null == line)
{
throw new Exception("Just work for straight wall.");
}
//Calculate offset by law of cosines.
double halfThickness = wall.Width / 2;
double length = GeoHelper.GetLength(locaCurve.GetEndPoint(0), locaCurve.GetEndPoint(1));
double xAxis = GeoHelper.GetDistance(locaCurve.GetEndPoint(0).X, locaCurve.GetEndPoint(1).X);
double yAxis = GeoHelper.GetDistance(locaCurve.GetEndPoint(0).Y, locaCurve.GetEndPoint(1).Y);
double xOffset = yAxis * halfThickness / length;
double yOffset = xAxis * halfThickness / length;
if (locaCurve.GetEndPoint(0).X < locaCurve.GetEndPoint(1).X &&
locaCurve.GetEndPoint(0).Y < locaCurve.GetEndPoint(1).Y)
{
xOffset = -xOffset;
}
if (locaCurve.GetEndPoint(0).X > locaCurve.GetEndPoint(1).X &&
locaCurve.GetEndPoint(0).Y > locaCurve.GetEndPoint(1).Y)
{
yOffset = -yOffset;
}
if (locaCurve.GetEndPoint(0).X > locaCurve.GetEndPoint(1).X &&
locaCurve.GetEndPoint(0).Y < locaCurve.GetEndPoint(1).Y)
{
xOffset = -xOffset;
yOffset = -yOffset;
}
//Three necessary parameters for generate a reference plane.
bubbleEnd = new Autodesk.Revit.DB.XYZ(locaCurve.GetEndPoint(0).X + xOffset,
locaCurve.GetEndPoint(0).Y + yOffset, locaCurve.GetEndPoint(0).Z);
freeEnd = new Autodesk.Revit.DB.XYZ(locaCurve.GetEndPoint(1).X + xOffset,
locaCurve.GetEndPoint(1).Y + yOffset, locaCurve.GetEndPoint(1).Z);
cutVec = new Autodesk.Revit.DB.XYZ(0, 0, 1);
}
