public void ProfileDifference()
{
Name = "Profile Difference";
var rect = Polygon.Rectangle(10, 10);
var rect2 = rect.TransformedPolygon(new Transform(11, 0, 0));
var difference = Elements.Geometry.Profile.Difference(new[] { new Profile(rect) }, new[] { new Profile(rect2) });
var innerRect = Polygon.Rectangle(3, 3);
var grid2d = new Elements.Spatial.Grid2d(new[] { rect, innerRect });
grid2d.U.DivideByCount(10);
grid2d.V.DivideByCount(10);
var secondSet = new[] {
new Profile(new Circle(new Vector3(4, 4), 4).ToPolygon(), new Circle(new Vector3(4, 4), 2).ToPolygon()),
new Profile(new Circle(new Vector3(-4, -4), 4).ToPolygon(), new Circle(new Vector3(-4, -4), 2).ToPolygon())
};
foreach (var cell in grid2d.GetCells())
{
var crvs = cell.GetTrimmedCellGeometry().OfType <Polygon>().ToList();
var profiles = crvs.Select(p => new Profile(p));
var differenceResult = Elements.Geometry.Profile.Difference(profiles, secondSet);
var floors = differenceResult.Select(p => new Floor(p, 1));
var mcs = differenceResult.Select(p => new ModelCurve(p.Perimeter, transform: new Transform(0, 0, 1.1)));
Model.AddElements(floors);
Model.AddElements(mcs);
}
Assert.Equal(84, Model.AllElementsOfType <Floor>().Count());
}
/// <summary>
/// Convert a Grid2d to a set of model curves.
/// </summary>
/// <param name="grid">The grid to convert.</param>
/// <param name="context">An optional transform to apply to these curves.</param>
/// <param name="material">An optional material to use for these curves.</param>
public static IEnumerable <ModelCurve> ToModelCurves(this Elements.Spatial.Grid2d grid, Transform context = null, Material material = null)
{
var mat = material ?? BuiltInMaterials.Black;
var xform = context ?? new Transform();
return(grid.GetCells().SelectMany(c => c.GetTrimmedCellGeometry()).Select(c => new ModelCurve(c, material, xform)));
}
