Name

PQTCF − Returns trimming curve information. 

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

Syntax

PQTCF (WTYPE, N, ERRIND, MTRIMC, NTCACT, TCACT)

Argument          Data Type      Access    Description
---------------------------------------------------------------------------
WTYPE             Integer        Read      Workstation type
N                 Integer        Read      Trimming curve approximation
                                           criteria element requested
ERRIND            Integer        Write     Error indicator
MTRIMC            Integer        Write     Maximum trimming curve order
                                           supported
NTCACT            Integer        Write     Number of available trimming
                                           curve approximation criteria
                                           types
TCACT             Integer        Write     Nth element of the list of
                                           available trimming curve
                                           approximation criteria types
---------------------------------------------------------------------------

Constants

Defined Argument     Constant     Description
---------------------------------------------------------------------------
TCACT                PWDSA        Workstation-dependent method
                     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

PQTCF returns information on trimming curves. 

Digital PHIGS Version 3.1 does not support this function.