private static IPolygon ConvertToFloatingPoint(ClipperPolygon p, Box2 range)
{
var answer = new PolygonBuilder();
foreach (var clipContour in p)
{
var contour = clipContour.Select(v => ConvertToFloatingPoint(v, range)).ToList();
answer.AddContour(contour);
}
return(answer.ExtractPolygon());
}
public void Area_is_correct_for_a_Polygon_with_axis_aligned_square_contours()
{
var corner1 = new Vector2(0.1, 0.2);
var side1 = 4.5;
var corner2 = new Vector2(0.9, 0.8);
var side2 = 2.3;
var corner3 = new Vector2(-5.1, -8.2);
var side3 = 3.14;
var builder = new PolygonBuilder();
builder.AddContour(Square(corner1, side1, positive: true));
builder.AddContour(Square(corner2, side2, positive: false));
builder.AddContour(Square(corner3, side3, positive: true));
var area = BasicMath.Sqr(side1) - BasicMath.Sqr(side2) + BasicMath.Sqr(side3);
Expect(builder.ExtractPolygon().Area(), Is.EqualTo(area).Within(_tolerance));
}
internal Polygon(PolygonBuilder builder) : this(builder.Contours)
{
}
