API Reference > geometry-core > CartesianGeometry > Point3d > crossProductToPointsXY crossProductToPointsXY Method Return the cross product of the vectors from this to pointA and pointB the result is a scalar the magnitude of the vector is twice the signed area of the triangle. this is positive for counter-clockwise order of the points, negative for clockwise. crossProductToPointsXY(pointA: Point3d, pointB: Point3d): number Parameter Type Description pointA Point3d pointB Point3d Returns - number Defined in core/geometry/src/geometry3d/Point3dVector3d.ts Line 405 Last Updated: 13 June, 2024