/// <summary>
/// Create Edge (Line or Arc2) from Dynamo Line or Arc.
/// Used for bar definition.
/// </summary>
public static Geometry.Edge FromDynamoLineOrArc2(Autodesk.DesignScript.Geometry.Curve obj)
{
// if polyline or similar.
Autodesk.DesignScript.Geometry.Geometry[] items = obj.Explode();
if (items.Length != 1)
{
throw new System.ArgumentException("Exploded Curve should only have one item.");
}
Autodesk.DesignScript.Geometry.Geometry item = items[0];
// if Arc
if (item.GetType() == typeof(Autodesk.DesignScript.Geometry.Arc))
{
return(Edge.FromDynamoArc2((Autodesk.DesignScript.Geometry.Arc)item));
}
// if Line
else if (item.GetType() == typeof(Autodesk.DesignScript.Geometry.Line))
{
return(Edge.FromDynamoLine((Autodesk.DesignScript.Geometry.Line)item));
}
else
{
throw new System.ArgumentException($"Curve type: {obj.GetType()}, is not Line or Arc.");
}
}
/// <summary>
/// Create FdCoordinateSystem from Dynamo coordinate system on curve mid u-point.
/// </summary>
internal static FdCoordinateSystem FromDynamoCurve(Autodesk.DesignScript.Geometry.Curve obj)
{
// CoordinateSystemAtParameter returns a coordinate system on curve
// with origin at the point at the given parameter.
// The XAxis is aligned with the curve normal,
// the YAxis is aligned with the curve tangent at this point,
// and the ZAxis is aligned with the up-vector or binormal at this point
Autodesk.DesignScript.Geometry.CoordinateSystem cs = obj.CoordinateSystemAtParameter(0.5);
// Note: Arcs and Circles in Dynamo are defined with left-hand rule while coordinate system is defined by right-hand rule
if (obj.GetType() == typeof(Autodesk.DesignScript.Geometry.Arc) || obj.GetType() == typeof(Autodesk.DesignScript.Geometry.Circle))
{
return(FdCoordinateSystem.FromDynamoCoordinateSystemArcOrCircle(cs));
}
else
{
return(FromDynamoCoordinateSystemLine(cs));
}
}
/// <summary>
/// Convert a Dynamo Curve to Edge.
/// </summary>
/// <param name="obj"></param>
public static Geometry.Edge FromDynamo(Autodesk.DesignScript.Geometry.Curve obj)
{
// if polyline or similar.
Autodesk.DesignScript.Geometry.Geometry[] items = obj.Explode();
if (items.Length != 1)
{
throw new System.ArgumentException("Exploded Curve should only have one item.");
}
Autodesk.DesignScript.Geometry.Geometry item = items[0];
// if Arc
if (item.GetType() == typeof(Autodesk.DesignScript.Geometry.Arc))
{
// output is a general purpose Edge
return(Edge.FromDynamoArc1((Autodesk.DesignScript.Geometry.Arc)item));
}
// if Circle
else if (item.GetType() == typeof(Autodesk.DesignScript.Geometry.Circle))
{
return(Edge.FromDynamoCircle((Autodesk.DesignScript.Geometry.Circle)item));
}
// if Line
else if (item.GetType() == typeof(Autodesk.DesignScript.Geometry.Line))
{
return(Edge.FromDynamoLine((Autodesk.DesignScript.Geometry.Line)item));
}
// if NurbsCurve
else if (item.GetType() == typeof(Autodesk.DesignScript.Geometry.NurbsCurve))
{
return(Edge.FromDynamoNurbsCurve((Autodesk.DesignScript.Geometry.NurbsCurve)item));
}
// else
else
{
throw new System.ArgumentException($"Curve type: {obj.GetType()}, is not supported for conversion to an Edge.");
}
}
public static Autodesk.AutoCAD.DatabaseServices.Polyline ConvertPolyCurveToPolyline(Autodesk.DesignScript.Geometry.PolyCurve polyCurve)
{
Autodesk.AutoCAD.DatabaseServices.Polyline retVal = new Autodesk.AutoCAD.DatabaseServices.Polyline();
if (polyCurve != null)
{
// extract each segment
Autodesk.DesignScript.Geometry.Curve[] curves = new Autodesk.DesignScript.Geometry.Curve[polyCurve.NumberOfCurves];
// convert segment into AutoCAD polyline
int curIndex = 0;
while (curIndex < polyCurve.NumberOfCurves)
{
double bulge = 0.0;
Autodesk.DesignScript.Geometry.Curve curCurve = polyCurve.CurveAtIndex(curIndex);
// trying to figure out if the segment is an arc or line...for some reason it thinks lines are arcs
var typeOfcurve = curCurve.GetType();
if (typeOfcurve == typeof(Autodesk.DesignScript.Geometry.Arc))
{
// set the bulge for the curve
//bulge = BulgeFromCurve(curCurve, true);
bulge = 0.5;
}
// otherwise, it's a line, and default bulge applies
retVal.AddVertexAt(curIndex, new Point2d(curCurve.StartPoint.X, curCurve.StartPoint.Y), bulge, 0.0, 0.0);
curIndex = curIndex + 1;
}
if (polyCurve.StartPoint == polyCurve.EndPoint)
{
retVal.Closed = true;
}
else
{
retVal.AddVertexAt(curIndex, new Point2d(polyCurve.EndPoint.X, polyCurve.EndPoint.Y), 0.0, 0.0, 0.0);
}
//retVal = Autodesk.DesignScript.Geometry.PolyCurve.ByJoinedCurves(curves);
}
return(retVal);
}