public static IRegion2D Simplify(IRegion2D region, double maxDiscretizationAngle = 5)
{
PolyLine2DDiscretizator discretizator = new PolyLine2DDiscretizator
{
NumberOfTiles = 1,
LengthOfTile = double.MaxValue,
Angle = maxDiscretizationAngle
};
var polyline = region.Outline;
var containsCircArc = polyline.Segments.FirstOrDefault(s => s is CircularArcSegment2D) != null;
var polygon = CreatePolygon(polyline, discretizator, true);
var solution = Clipper.SimplifyPolygon(polygon);
if (solution.Count == 1)
{
var newRegion = new Region2D(CreatePolyline(solution[0], containsCircArc, maxDiscretizationAngle + 1));
foreach (var opening in region.Openings)
{
containsCircArc = opening.Segments.FirstOrDefault(s => s is CircularArcSegment2D) != null;
polygon = CreatePolygon(opening, discretizator, true);
solution = Clipper.SimplifyPolygon(polygon);
if (solution.Count == 1)
{
newRegion.Openings.Add(CreatePolyline(solution[0], containsCircArc, maxDiscretizationAngle + 1));
}
else
{
throw new System.NotImplementedException();
}
}
return(newRegion);
}
throw new System.NotImplementedException();
}
/// <summary>
/// Ofset regionu.
/// </summary>
/// <param name="region"></param>
/// <param name="delta"></param>
/// <param name="joinType"></param>
/// <param name="endType">Pokud bude etClosed, tak dela ofset vcetne otvoru, kladne delta je ven, zaporne dovnitr.
/// Pokud nebude etClosed, tak dela ofset outline dovnitr i ven.</param>
/// <param name="mitterLimit"></param>
/// <returns></returns>
public IRegion2D BuildOffset(IRegion2D region, double delta, JoinType joinType, EndType endType, double mitterLimit)
{
var polygons = CreatePolygons(region).ToList();
var co = new ClipperOffset(mitterLimit);
co.AddPaths(polygons, joinType, endType);
var solution = new List <List <IntPoint> >();
co.Execute(ref solution, delta * ClipperScale);
if (solution.Count > 0)
{
var outline = CreatePolyline(solution[0], containsCircArc, MaxDiscretizationAngle + 1);
var openings = new List <IPolyLine2D>(solution.Count - 1);
for (var i = 1; i < solution.Count; ++i)
{
openings.Add(CreatePolyline(solution[i], containsCircArc, MaxDiscretizationAngle + 1));
}
var result = new Region2D(outline, openings);
return(result);
}
return(null);
}
