/// <summary>
/// Extract the points of a Polyline2d
/// </summary>
/// <param name="aPolyline"></param>
/// <returns>Point2dCollection</returns>
public static Point2dCollection GetPointsFromPolyline(Polyline2d aPolyline)
{
var polyPts = new Point2dCollection();
var polySegments = new DBObjectCollection();
aPolyline.Explode(polySegments);
// Cycle through the segments
for (var i = 0; i <= polySegments.Count - 1; i++)
{
// if segment is Line
var line = polySegments[i] as Line;
if (line != null)
{
var tempLine = line;
polyPts.Add(new Point2d(tempLine.StartPoint.X, tempLine.StartPoint.Y));
polyPts.Add(new Point2d(tempLine.EndPoint.X, tempLine.EndPoint.Y));
}
// else if segment is Arc
else
{
var arc = polySegments[i] as Arc;
if (arc != null)
{
var tempArc = arc;
polyPts.Add(new Point2d(tempArc.StartPoint.X, tempArc.StartPoint.Y));
polyPts.Add(new Point2d(tempArc.EndPoint.X, tempArc.EndPoint.Y));
}
// else is something else - this must never happen
else
{
throw new Exception(
"KojtoCAD Error - Can not find the type of this polyline segment. Not Arc nor Line.");
}
}
}
RemoveDuplicate(polyPts);
return(polyPts);
}
public Polycurve PolycurveToSpeckle(Polyline2d polyline) // AC polyline2d can have linear, circlular, or elliptical segments
{
var polycurve = new Polycurve(units: ModelUnits)
{
closed = polyline.Closed
};
// extract segment curves
var segments = new List <ICurve>();
var exploded = new DBObjectCollection();
polyline.Explode(exploded);
for (int i = 0; i < exploded.Count; i++)
{
segments.Add((ICurve)ConvertToSpeckle(exploded[i]));
}
polycurve.segments = segments;
polycurve.length = polyline.Length;
polycurve.bbox = BoxToSpeckle(polyline.GeometricExtents, true);
return(polycurve);
}
CoordinateList ReadCoordination(Polyline2d polyline2D, Transaction tr)
{
var coordinateList = new CoordinateList();
if (polyline2D.PolyType == Poly2dType.SimplePoly)
{
foreach (var v in polyline2D)
{
Vertex2d vertex = null;
if (v is ObjectId)
{
var id = (ObjectId)v;
if (id.IsValid)
{
vertex = tr.GetObject(id, OpenMode.ForRead) as Vertex2d;
}
}
else if (v is Vertex2d)
{
vertex = (Vertex2d)v;
}
if (vertex != null)
{
coordinateList.Add(this.ReadCoordinate(vertex.Position), this.AllowRepeatedCoordinates);
}
}
}
else
{
var dBObjectCollection = new DBObjectCollection();
polyline2D.Explode(dBObjectCollection);
try
{
foreach (var dBObject in dBObjectCollection)
{
if (dBObject is Arc)
{
var arc = (Arc)dBObject;
coordinateList.Add(this.GetTessellatedCurveCoordinates(arc), false);
}
else if (dBObject is Line)
{
var line = (Line)dBObject;
coordinateList.Add(this.ReadCoordinate(line.StartPoint), false);
coordinateList.Add(this.ReadCoordinate(line.EndPoint), false);
}
}
}
finally
{
foreach (var dBObject in dBObjectCollection)
{
if (dBObject is IDisposable)
{
(dBObject as IDisposable).Dispose();
}
}
}
dBObjectCollection.Dispose();
}
if (polyline2D.Closed)
{
coordinateList.Add(coordinateList[0]);
}
return(coordinateList);
}
