Name

PQRFF − Returns reflectance information. 

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

Syntax

PQRFF (WTYPE, N, NRRFP, ERRIND, NRFM, RFM, NPRFI,
NRFP, RFP)

 
Argument        Data Type       Access    Description
---------------------------------------------------------------------------
WTYPE           Integer         Read      Workstation type
N               Integer         Read      List element requested in the
                                          list of reflectance models
ERRIND          Integer         Write     Error indicator
NRRFP           Integer         Read      List element requested in the
                                          list of reflectance properties
ERRIND          Integer         Write     Error indicator
NRFM            Integer         Write     Number of available reflectance
                                          models
RFM             Integer         Write     Nth element of the list of
                                          available reflectance models
NPRFI           Integer         Write     Number of predefined reflectance
                                          indexes
NRFP            Integer         Write     Number of available reflectance
                                          properties
RFP             Integer         Write     Nth element of the list of
                                          available reflectance properties
---------------------------------------------------------------------------

Constants

 
Defined Argument      Constant       Description
---------------------------------------------------------------------------
RFM                   PNORM          No reflectance
                      PARM           Ambient reflectance
                      PADRM          Ambient and diffuse reflectance
                      PADSRM         Ambient, diffuse, and specular
                                     reflectance
 
RFP                   PSRPT          Simple reflectance
---------------------------------------------------------------------------

Description

PQRFF queries the workstation description table and returns values for the following:

•RFMth element of the list of available reflectance characteristics

•Number of predefined reflectance indexes

Digital PHIGS Version 3.1 does not support this function.

See Also

PQPRFR
PQRFR
PSRFR