Name

PQCVF − Returns information on curve approximation types. 

Operating States: PHOP, ∗, ∗, ∗
PHIGS PLUS function
 

Syntax

PQCVF (WTYPE, N, ERRIND, MNUBSC, NCACT, CACT)

 
Argument        Data Type       Access    Description
---------------------------------------------------------------------------
ERRIND          Integer         Write     Error indicator
ELTYPE          Integer         Write     Element type
IL              Integer         Write     Dimension of integer array
RL              Integer         Write     Dimension of real array
SL              Integer         Write     Dimension of character array
---------------------------------------------------------------------------

Constants

Defined Argument     Constant     Description
---------------------------------------------------------------------------
Curve approximation  PWDSA        Workstation-dependent method
types                PCBKSA       Constant parametric subdivision between
                                  knots
                     PCSWSA       Chordal size, in world coordinates
                     PCSNSA       Chordal size, in normalized projection
                                  coordinates
                     PCSDSA       Chordal size, in world coordinates
                     PPDWSA       Planar deviation, in world coordinates
                     PPDNSA       Planar deviation, in normalized projection
                                  coordinates
                     PPDDSA       Planar deviation, in device coordinates
                     PRWSA        Relative, in world coordinates
                     PRNSA        Relative, in normalized projection
                                  coordinates
                     PRDSA        Relative, in device coordinates
                     DCSDSA       Constant subdivision (non-PEX only)
                     DIDSA        Implementation-dependent method (PEX only)
---------------------------------------------------------------------------

Description

PQCVF returns information on the curve approximation types. 
  This function used to be part of the DQECSF function. The standard splits the DQECSF function into the following four functions:

•PQBSSF

•PQCVF

•PQPSF

•PQTCF

Digital PHIGS Version 3.1 does not support this function.

See Also

PBSC3
PBSS3
PSCAC
PSSAC