private IEnumerable <PolygonChanged> OutgoingForPoint(int pointIndex)
{
var polygon = CurrentPicture.Polygons[0];
var unfiltered = discreteSpiralPointMutation.SpiralPoints(polygon.Points[pointIndex]).Select(
point => ReplacePoint(point, pointIndex));
var filtered = unfiltered.Where(x => !x.NewPolygon.IsSelfIntersecting());
return(filtered);
}
IEnumerable <PolygonChanged> MutatePoint(int pointIndex)
{
return(changeSpiralPointMutation.SpiralPoints(Polygon.Points[pointIndex]).Select(point => ReplacePoint(point, pointIndex)));
}
IEnumerable <PolygonChanged> InsertPoint(int pointIndex)
{
var halfWayPoint = (Polygon.Points[pointIndex] + Polygon.Points[(pointIndex + 1) % Polygon.Points.Count]) / 2;
return(insertSpiralPointMutation.SpiralPoints(halfWayPoint).Select(point => InsertPoint(point, pointIndex)));
}
private IEnumerable <PointMutation> MutatePoint(int pointIndex)
{
return(discreteSpiralPointMutation.SpiralPoints(Polygon.Points[pointIndex]).Select(point => (PointMutation) new ChangedPoint(pointIndex, point)));
}