public static Polygon Xor(Polygon first, Polygon second)
{
var firstPolygonRegions = PolyBool.Segments(first);
var secondPolygonRegions = PolyBool.Segments(second);
var combinedSegments = PolyBool.Combine(firstPolygonRegions, secondPolygonRegions);
var xor = Select(combinedSegments.Combined, new[] { 0, 2, 1, 0,
2, 0, 0, 1,
1, 0, 0, 2,
0, 1, 2, 0 });
return(new Polygon(PolyBool.SegmentChainer(xor), first.Inverted != second.Inverted));
}
public static Polygon DifferenceRev(Polygon first, Polygon second)
{
var firstPolygonRegions = PolyBool.Segments(first);
var secondPolygonRegions = PolyBool.Segments(second);
var combinedSegments = PolyBool.Combine(firstPolygonRegions, secondPolygonRegions);
var difference = Select(combinedSegments.Combined, new[] { 0, 2, 1, 0,
0, 0, 1, 1,
0, 2, 0, 2,
0, 0, 0, 0 });
return(new Polygon(PolyBool.SegmentChainer(difference), !first.Inverted && second.Inverted));
}
public static Polygon Intersect(Polygon first, Polygon second)
{
var firstPolygonRegions = PolyBool.Segments(first);
var secondPolygonRegions = PolyBool.Segments(second);
var combinedSegments = PolyBool.Combine(firstPolygonRegions, secondPolygonRegions);
var intersection = Select(combinedSegments.Combined, new[] { 0, 0, 0, 0,
0, 2, 0, 2,
0, 0, 1, 1,
0, 2, 1, 0 });
foreach (var s in intersection)
{
Console.WriteLine("{0},{1} -> {2},{3}", s.Start.X, s.Start.Y, s.End.X, s.End.Y);
}
return(new Polygon(PolyBool.SegmentChainer(intersection), first.Inverted && second.Inverted));
}