public static IElement2D RoundCoordinates(this IElement2D element2d, int decimalPlaces = 6)
{
bool planar = element2d.IIsPlanar();
if (planar)
{
Vector normal = element2d.FitPlane().Normal.Normalise();
//If the element is planar AND aligned with one of the main coordinate system's planes then rounded element will get projected on this plane to keep it's planarity.
if (Math.Abs(Math.Abs(normal.X) - 1) < Tolerance.Angle ||
Math.Abs(Math.Abs(normal.Y) - 1) < Tolerance.Angle ||
Math.Abs(Math.Abs(normal.Z) - 1) < Tolerance.Angle)
{
Plane plane = new Plane()
{
Origin = Geometry.Modify.RoundCoordinates(element2d.OutlineCurve().StartPoint(), decimalPlaces), Normal = normal.RoundCoordinates(0)
};
element2d = element2d.ISetOutlineElements1D(element2d.IOutlineElements1D().Select(x => x.ISetGeometry(Geometry.Modify.IRoundCoordinates(x.IGeometry().IProject(plane), decimalPlaces))).ToList());
return(element2d.ISetInternalElements2D(element2d.IInternalElements2D().Select(y => y.ISetOutlineElements1D(y.IOutlineElements1D().Select(x => x.ISetGeometry(Geometry.Modify.IRoundCoordinates(x.IGeometry().IProject(plane), decimalPlaces))).ToList())).ToList()));
}
}
//Here is the part with the default way of rounding element's coordinates:
IElement2D newElement2d = element2d.ISetOutlineElements1D(element2d.IOutlineElements1D().Select(x => x.ISetGeometry(Geometry.Modify.IRoundCoordinates(x.IGeometry(), decimalPlaces))).ToList());
newElement2d = newElement2d.ISetInternalElements2D(newElement2d.IInternalElements2D().Select(y => y.ISetOutlineElements1D(y.IOutlineElements1D().Select(x => x.ISetGeometry(Geometry.Modify.IRoundCoordinates(x.IGeometry(), decimalPlaces))).ToList())).ToList());
if (planar && !newElement2d.IsPlanar()) //If the original element was planar we need to ensure that result is planar as well.
{
Reflection.Compute.RecordWarning("Rounding the coordinates of an IElement2D couldn't be achieved without losing planarity. No action has been taken.");
return(element2d);
}
return(newElement2d);
}
