PK_ERROR_code_t    PK_TRANSF_transform
(
--- received arguments ---
PK_TRANSF_t        transf_1,    --- first transformation
PK_TRANSF_t        transf_2,    --- second transformation

--- returned arguments ---
PK_TRANSF_t *const transf_out
)


This function evaluates the product of two transformations.


transf_out is the result of multiplying transf_1 by transf_2.
If used to transform an entity, transf_out has the same effect as firstly
transforming the entity by transf_1 and then secondly by transf_2.