factorRigidWithSignedScale Method

Test if the instance is the product of a rigid matrix and a signed scale, and return both.

• Specifically, this is a test of whether the instance rows and columns are pairwise perpendicular and have equal length. If so, the scale factor is this length, or its negative if the instance is a mirror, and dividing the columns by this scale factor produces a rigid matrix (a rotation).

factorRigidWithSignedScale(result?: Matrix3d): undefined | { rigidAxes: Matrix3d, scale: number }

@returns the factorization { rigidAxes, scale } where rigidAxes is the instance matrix with scale factor removed, or undefined if the factorization failed.

Returns - undefined | { rigidAxes: Matrix3d, scale: number }

the factorization { rigidAxes, scale } where rigidAxes is the instance matrix with scale factor removed, or undefined if the factorization failed.

Defined in

• geometry3d/Matrix3d.ts Line 2783