/***************************************************/
public static BoundingBox Calculate4(NurbCurve curve)
{
List <Point> pts = curve.ControlPoints;
return(new BoundingBox(
pts.Aggregate((a, b) => new Point(Math.Min(a.X, b.X), Math.Min(a.Y, b.Y), Math.Min(a.Z, b.Z))),
pts.Aggregate((a, b) => new Point(Math.Max(a.X, b.X), Math.Max(a.Y, b.Y), Math.Max(a.Z, b.Z)))
));
}
/***************************************************/
public static BoundingBox Calculate3(NurbCurve curve)
{
List <Point> pts = curve.ControlPoints;
return(new BoundingBox(
new Point(pts.Min(pt => pt.X), pts.Min(pt => pt.Y), pts.Min(pt => pt.Z)),
new Point(pts.Max(pt => pt.X), pts.Max(pt => pt.Y), pts.Max(pt => pt.Z))
));
}
/***************************************************/
/**** Speed Test Alternatives (all worse) ****/
/***************************************************/
public static BoundingBox Calculate2(NurbCurve curve)
{
Point min = curve.ControlPoints[0];
Point max = curve.ControlPoints[0];
for (int i = curve.ControlPoints.Count - 1; i > 0; i--)
{
Point pt = curve.ControlPoints[i];
min.X = Math.Min(min.X, pt.X);
min.Y = Math.Min(min.Y, pt.Y);
min.Z = Math.Min(min.Z, pt.Z);
max.X = Math.Max(max.X, pt.X);
max.Y = Math.Max(max.Y, pt.Y);
max.Z = Math.Max(max.Z, pt.Z);
}
return(new BoundingBox(min, max));
}
/***************************************************/
static void ChangeCurveLength(int nbPts)
{
Random rnd = new Random();
List <Point> points = new List <Point>();
for (int i = 0; i < nbPts; i++)
{
points.Add(new Point(rnd.NextDouble(), rnd.NextDouble(), rnd.NextDouble()));
}
newControlPoints = points;
newNurbsCurve = new NurbCurve(points);
newNurbsCurveB = new NurbCurveB(points);
oldControlPoints = points.Select(pt => new BHG.Point(pt.X, pt.Y, pt.Z)).ToList();
oldNurbsWeights = newNurbsCurve.Weights.ToArray();
oldNurbsKnots = newNurbsCurve.Knots.ToArray();
oldNurbsCurve = new BHG.NurbCurve(oldControlPoints, 3, oldNurbsKnots, oldNurbsWeights);
}
/***************************************************/
public static BoundingBox Calculate(NurbCurve curve)
{
Point pt = curve.ControlPoints[0];
double minX = pt.X;
double minY = pt.Y;
double minZ = pt.Z;
double maxX = minX;
double maxY = minY;
double maxZ = minZ;
for (int i = curve.ControlPoints.Count - 1; i > 0; i--)
{
pt = curve.ControlPoints[i];
if (pt.X < minX)
{
minX = pt.X;
}
if (pt.Y < minY)
{
minY = pt.Y;
}
if (pt.Z < minZ)
{
minZ = pt.Z;
}
if (pt.X > maxX)
{
maxX = pt.X;
}
if (pt.Y > maxY)
{
maxY = pt.Y;
}
if (pt.Z > maxZ)
{
maxZ = pt.Z;
}
}
return(new BoundingBox(new Point(minX, minY, minZ), new Point(maxX, maxY, maxZ)));
}
