/// <summary>
/// Initializes a new instance of the <see cref="InternalPath" /> class.
/// </summary>
/// <param name="prototype">The prototype.</param>
/// <param name="isClosedPath">if set to <c>true</c> [is closed path].</param>
internal InternalPath(InternalPath prototype, bool isClosedPath)
{
this.points = prototype.points;
this.distance = prototype.distance;
this.calculated = prototype.calculated;
this.Bounds = prototype.Bounds;
this.closedPath = isClosedPath;
this.totalDistance = new Lazy <float>(this.CalculateLength);
}
/// <summary>
/// Finds the intersections.
/// </summary>
/// <param name="start">The start.</param>
/// <param name="end">The end.</param>
/// <returns>The points along the line the intersect with the boundaries of the polygon.</returns>
internal static IEnumerable <PointF> FindIntersections(this InternalPath path, Vector2 start, Vector2 end)
{
var results = new List <PointF>();
PointF[] buffer = ArrayPool <PointF> .Shared.Rent(path.PointCount);
try
{
int hits = path.FindIntersections(start, end, buffer);
for (int i = 0; i < hits; i++)
{
results.Add(buffer[i]);
}
}
finally
{
ArrayPool <PointF> .Shared.Return(buffer);
}
return(results);
}
private EllipsePolygon(CubicBezierLineSegment segment)
{
this.segment = segment;
this.innerPath = new InternalPath(segment, isClosedPath: true);
}
/// <summary>
/// Initializes a new instance of the <see cref="Path"/> class.
/// </summary>
/// <param name="segments">The segments.</param>
public Path(ImmutableArray <ILineSegment> segments)
{
this.innerPath = new InternalPath(segments, false);
this.LineSegments = segments;
}
/// <summary>
/// Initializes a new instance of the <see cref="Path"/> class.
/// </summary>
/// <param name="segments">The segments.</param>
public Path(ImmutableArray <ILineSegment> segments)
{
this.innerPath = new InternalPath(segments, this.IsClosed);
this.LineSegments = segments;
this.flatPath = ImmutableArray.Create <ISimplePath>(this);
}
private Ellipse(BezierLineSegment segment)
{
this.segment = segment;
this.innerPath = new InternalPath(segment, true);
this.flatPath = ImmutableArray.Create <ISimplePath>(this);
}
