Optionaltransformation: TransformMatrixesOptionaltolerance: numberA transformation matrix, or a list of them applied in order; a list of such lists is
applied one list after another, as point.transformPoints takes it.
OptionaltoleranceHow far each axis may be from length 1, and from square to the others, for the transformation to still count as rigid.
A transformation and how far from exact
transforms.isRigidlets it be.