private static FamilyInstanceCreationData GetCreationData(Autodesk.Revit.DB.Curve curve, Autodesk.Revit.DB.XYZ upVector, Autodesk.Revit.DB.Level level, Autodesk.Revit.DB.Structure.StructuralType structuralType, Autodesk.Revit.DB.FamilySymbol symbol)
{
//calculate the desired rotation
//we do this by finding the angle between the z axis
//and vector between the start of the beam and the target point
//both projected onto the start plane of the beam.
var zAxis = new XYZ(0, 0, 1);
var yAxis = new XYZ(0, 1, 0);
//flatten the beam line onto the XZ plane
//using the start's z coordinate
var start = curve.GetEndPoint(0);
var end = curve.GetEndPoint(1);
var newEnd = new XYZ(end.X, end.Y, start.Z); //drop end point to plane
//catch the case where the end is directly above
//the start, creating a normal with zero length
//in that case, use the Z axis
XYZ planeNormal = newEnd.IsAlmostEqualTo(start) ? zAxis : (newEnd - start).Normalize();
double gamma = upVector.AngleOnPlaneTo(zAxis.IsAlmostEqualTo(planeNormal) ? yAxis : zAxis, planeNormal);
return new FamilyInstanceCreationData(curve, symbol, level, structuralType)
{
RotateAngle = gamma
};
}
/// <summary>
/// Creates a new Sketch Plane from a Curve
/// </summary>
/// <param name="document">Active Document</param>
/// <param name="curve">Curve to get plane from</param>
/// <returns>Plane of the curve</returns>
public static SketchPlane NewSketchPlaneFromCurve(Document document, Autodesk.Revit.DB.Curve curve)
{
XYZ startPoint = curve.GetEndPoint(0);
XYZ endPoint = curve.GetEndPoint(1);
// If Start end Endpoint are the same check further points.
int i = 2;
while (startPoint == endPoint && endPoint != null)
{
endPoint = curve.GetEndPoint(i);
i++;
}
// Plane to return
Plane plane;
// If Z Values are equal the Plane is XY
if (startPoint.Z == endPoint.Z)
{
plane = document.Application.Create.NewPlane(XYZ.BasisZ, startPoint);
}
// If X Values are equal the Plane is YZ
else if (startPoint.X == endPoint.X)
{
plane = document.Application.Create.NewPlane(XYZ.BasisX, startPoint);
}
// If Y Values are equal the Plane is XZ
else if (startPoint.Y == endPoint.Y)
{
plane = document.Application.Create.NewPlane(XYZ.BasisY, startPoint);
}
// Otherwise the Planes Normal Vector is not X,Y or Z.
// We draw lines from the Origin to each Point and use the Plane this one spans up.
else
{
CurveArray curves = new CurveArray();
curves.Append(curve);
curves.Append(Autodesk.Revit.DB.Line.CreateBound(new XYZ(0, 0, 0), startPoint));
curves.Append(Autodesk.Revit.DB.Line.CreateBound(endPoint, new XYZ(0, 0, 0)));
plane = document.Application.Create.NewPlane(curves);
}
// return new Sketchplane
return SketchPlane.Create(document, plane);
}
/// <summary>
/// Create a new curve with the same
/// geometry in the reverse direction.
/// rom Jeremy Tammik
/// </summary>
/// <param name="orig">The original curve.</param>
/// <returns>The reversed curve.</returns>
/// <throws cref="NotImplementedException">If the
/// curve type is not supported by this utility.</throws>
static Autodesk.Revit.DB.Curve CreateReversedCurve(Autodesk.Revit.DB.Curve orig)
{
if (orig is Autodesk.Revit.DB.Line)
{
return Autodesk.Revit.DB.Line.CreateBound(
orig.GetEndPoint(1),
orig.GetEndPoint(0));
}
else if (orig is Autodesk.Revit.DB.Arc)
{
return Autodesk.Revit.DB.Arc.Create(orig.GetEndPoint(1),
orig.GetEndPoint(0),
orig.Evaluate(0.5, true));
}
else
{
throw new Exception(
"CreateReversedCurve - Unreachable");
}
}
private static Autodesk.DesignScript.Geometry.Line Convert(Autodesk.Revit.DB.Line crv)
{
return Autodesk.DesignScript.Geometry.Line.ByStartPointEndPoint(
crv.GetEndPoint(0).ToPoint(), crv.GetEndPoint(1).ToPoint());
}
private static Autodesk.DesignScript.Geometry.Helix Convert(Autodesk.Revit.DB.CylindricalHelix crv)
{
if (crv.IsRightHanded)
{
// a negative pitch and axis vector produces helix in opposite direction
return Autodesk.DesignScript.Geometry.Helix.ByAxis(crv.BasePoint.ToPoint(), (-1.0 * crv.ZVector).ToVector(),
crv.GetEndPoint(0).ToPoint(), -crv.Pitch, (crv.Height / crv.Pitch) * 360.0);
}
// clockwise is default
return Autodesk.DesignScript.Geometry.Helix.ByAxis(crv.BasePoint.ToPoint(), crv.ZVector.ToVector(),
crv.GetEndPoint(0).ToPoint(), crv.Pitch, (crv.Height/crv.Pitch)*360.0);
}
private static Autodesk.DesignScript.Geometry.Curve Convert(Autodesk.Revit.DB.Arc crv)
{
var isCircle = !crv.IsBound ||
Math.Abs(Math.Abs(crv.GetEndParameter(1) - crv.GetEndParameter(0)) - 2*Math.PI) < 1e-6;
if ( isCircle )
{
return Circle.ByCenterPointRadiusNormal(crv.Center.ToPoint(), crv.Radius, crv.Normal.ToVector());
}
return Arc.ByCenterPointStartPointSweepAngle(crv.Center.ToPoint(), crv.GetEndPoint(0).ToPoint(),
(crv.GetEndParameter(1) - crv.GetEndParameter(0))*180/Math.PI, crv.Normal.ToVector());
}