// -------------------------------------------------
// Util
// -------------------------------------------------
private static Geometry.Interval RelativeEnvelopeLon(Geometry.IRandomAccessRange <Geometry.Point> points, bool closed, Geometry.Unit unit)
{
Geometry.Interval result = null;
if (points.Count < 1)
{
result = new Geometry.Interval();
Geometry.AssignInverse(result);
return(result);
}
double x0 = points[0][0];
result = new Geometry.Interval(x0);
int count = points.Count + (closed ? 1 : 0);
for (int ii = 1; ii < count; ++ii)
{
int i = ii % points.Count;
double xi = points[i][0];
double distNorm = Geometry.NormalizedAngleSigned(xi - x0, unit); // [-pi, pi]
double x1 = x0 + distNorm;
result.Expand(x1);
x0 = x1;
}
return(result);
}
public static Geometry.Interval RelativeEnvelopeLon(Geometry.IRandomAccessRange <Geometry.Point> outer,
IEnumerable <Geometry.IRandomAccessRange <Geometry.Point> > inners,
Geometry.Unit unit)
{
Geometry.Interval result = RelativeEnvelopeLon(outer, true, unit);
foreach (var inner in inners)
{
result.Expand(RelativeEnvelopeLon(inner, true, unit));
}
return(result);
}
