API Reference > geometry-core > Bspline > KnotVector > isIndexOfRealSpan isIndexOfRealSpan Method Given a span index, test if it is within range and has nonzero length. note that a false return does not imply there are no more spans. This may be a double knot (zero length span) followed by more real spans isIndexOfRealSpan(spanIndex: number): boolean Parameter Type Description spanIndex number index of span to test. Returns - boolean Defined in bspline/KnotVector.ts Line 375 Last Updated: 11 June, 2024