SEMODP ( pnum, ival, rval, ifail )
==================================
Set modeller parameter
Receives:
KI_cod_slmp *pnum --- parameter code
int *ival --- integer value of parameter
double *rval --- real value of parameter
Returns:
KI_cod_error *ifail --- failure indicator
Specific errors:
KI_bad_precision Linear precision must be greater than zero
Angular precision does not lie within allowed range
Description:
The value of 'pnum' is used to indicate which parameter to set and thereby
which value ('ival' or 'rval') to use. At present this routine receives only
real parameters.
The valid values of 'pnum' and the corresponding parameters are:
'pnum' receive parameter
SLMPLP 'rval' Absolute (linear) precision of modeller as a real value
greater than zero. Lengths and distances that differ by
no more than this value will be treated as equal.
SLMPAP 'rval' Angular precision of modeller as a real value greater
than zero. Angles, and values calculated from normalised
vectors, that differ by no more than this value will be
treated as equal.
Modeller precision should not be changed from default values except where
this is essential for compatibility with old transmit files.
