/// <summary>
/// Creates a new allocator with a vertex welding distance in the map
/// unit range provided.
/// </summary>
/// <param name="weldingEpsilon">The welding map unit range. This value
/// should be greater than zero.</param>
public VertexAllocator(double weldingEpsilon)
{
Debug.Assert(weldingEpsilon > 0, "Cannot have a zero or negative welding epsilon");
grid = new QuantizedGrid <int>(weldingEpsilon);
}
/// <summary>
/// Creates a tracker which has a resolution of sloped lines by the
/// epsilon provided.
/// </summary>
/// <param name="epsilon">How far apart the slope or y-intercept can be
/// before they are considered the same.</param>
public CollinearTracker(double epsilon)
{
slopeInterceptToIndex = new QuantizedGrid <int>(epsilon);
}