public void SliceTopReturnsPolygonForRectangle()
{
var Points = new List<Point2D>
{
new Point2D(-1, -1),
new Point2D(-1, 1),
new Point2D(1, 1),
new Point2D(1, -1)
};
var rect = new GenericShape(Points);
IMoveableSection sect = rect.GetTopSliceSection(1, SlicingPlaneOffsetType.Top);
Assert.AreEqual(1.0,sect.YMax);
}
IMoveableSection GetCutPolygon(List<Point2D> CuttingRectanglePoints)
{
#region GPC
////Cutting polygon
//Polygon CuttingPoly = new Polygon();
//CuttingPoly.AddContour(CuttingRectanglePoints, false);
////Original polygon
//Polygon OriginalPoly = new Polygon();
//OriginalPoly.AddContour(Vertices, false);
//Polygon result = OriginalPoly.Clip(GpcOperation.Intersection, CuttingPoly);
//GenericShape shape = new GenericShape(result);
//return shape;
#endregion
#region Clipper
Paths subj = GetPolyPaths(Vertices);
Paths clip = GetPolyPaths(CuttingRectanglePoints);
Paths solution = new Paths();
Clipper c = new Clipper();
c.AddPaths(subj, PolyType.ptSubject, true);
c.AddPaths(clip, PolyType.ptClip, true);
c.Execute(ClipType.ctIntersection, solution,
PolyFillType.pftEvenOdd, PolyFillType.pftEvenOdd);
GenericShape shape = new GenericShape(solution);
return shape;
#endregion
}