API Reference > geometry-core > CartesianGeometry > Range2d > isNull isNull MethodStatic Test if the box has high strictly less than low for any of x,y, condition. Note that a range around a single point is NOT null. isNull(range: Readonly<WritableLowAndHighXY>): boolean Parameter Type Description range Readonly<WritableLowAndHighXY> Returns - boolean Defined in geometry3d/Range.ts Line 1378 Last Updated: 12 June, 2024