PK_FIN_find_curve_parameter

PK_ERROR_code_t PK_FIN_find_curve_parameter
(
--- received arguments ---
PK_FIN_t        fin,        --- fin
PK_UV_t         parms,      --- u,v parameters of surface attached to 'fin'
PK_LOGICAL_t    estimate,   --- whether 't_est' is to be used
double          t_est,      --- estimate of parameter point 't'

--- returned arguments ---
double   *const t           --- t parameter on curve attached to 'fin'
)


This function computes the fin curve parameter corresponding to the given
surface parameters.


Specific Errors:
    PK_ERROR_missing_geom           given fin has no associated curve
    PK_ERROR_bad_parameter          not coincident with curve and surface


The function returns the parameter 't' on the curve of 'fin' that
corresponds to the given parameter pairs on the surface connected to 'fin'.
Parameter points must be in range on the surface and lie within tolerance
of the curve attached to 'fin'.

If 'estimate' is PK_LOGICAL_true, 't_est' will be used as an estimate of 't'.

'fin' can be attached to a tolerant or untoleranced edge. Be aware that
different parameterisations apply on each of the fins of a toleranced edge.