private Spiral AlignmentSpiralToSpeckle(CivilDB.AlignmentSubEntitySpiral spiral, CivilDB.Alignment alignment)
{
var _spiral = new Spiral();
_spiral.startPoint = PointToSpeckle(spiral.StartPoint);
_spiral.endPoint = PointToSpeckle(spiral.EndPoint);
_spiral.length = spiral.Length;
_spiral.pitch = 0;
_spiral.spiralType = SpiralTypeToSpeckle(spiral.SpiralDefinition);
// get plane
var vX = new Vector3d(System.Math.Cos(spiral.StartDirection) + spiral.StartPoint.X, System.Math.Sin(spiral.StartDirection) + spiral.StartPoint.Y, 0);
var vY = vX.RotateBy(System.Math.PI / 2, Vector3d.ZAxis);
var plane = new Acad.Plane(new Point3d(spiral.RadialPoint.X, spiral.RadialPoint.Y, 0), vX, vY);
_spiral.plane = PlaneToSpeckle(plane);
// get turns
int turnDirection = (spiral.Direction == CivilDB.SpiralDirectionType.DirectionLeft) ? 1 : -1;
_spiral.turns = turnDirection * spiral.Delta / (System.Math.PI * 2);
// create polyline display, default tessellation length is 1
var tessellation = 1;
int spiralSegmentCount = System.Convert.ToInt32(System.Math.Ceiling(spiral.Length / tessellation));
spiralSegmentCount = (spiralSegmentCount < 10) ? 10 : spiralSegmentCount;
double spiralSegmentLength = spiral.Length / spiralSegmentCount;
List <Point2d> points = new List <Point2d>();
points.Add(spiral.StartPoint);
for (int i = 1; i < spiralSegmentCount; i++)
{
double x = 0;
double y = 0;
double z = 0;
alignment.PointLocation(spiral.StartStation + (i * spiralSegmentLength), 0, tolerance, ref x, ref y, ref z);
points.Add(new Point2d(x, y));
}
points.Add(spiral.EndPoint);
double length = 0;
for (int j = 1; j < points.Count; j++)
{
length += points[j].GetDistanceTo(points[j - 1]);
}
var poly = new Polyline();
poly.value = PointsToFlatList(points);
poly.units = ModelUnits;
poly.closed = (spiral.StartPoint != spiral.EndPoint) ? false : true;
poly.length = length;
_spiral.displayValue = poly;
return(_spiral);
}
internal AlignmentSpiral
(C3dDb.AlignmentSubEntitySpiral subEntitySpiral)
: base(subEntitySpiral)
{
}