Creating a color mapping table
For our AFP files,
this pie chart appears as a series of horizontal lines. By reviewing
the chapter on "Graphic primitives and attributes" in Graphics
Objects Content Architecture for Advanced Function Presentation Reference, we can see that these horizontal lines are created
by a Pattern Output Primitive with a hexadecimal value of '0B'
(11).
To turn these horizontal lines into a shade
of green when using a ColorSpace source group of GOCA
to map to a target group value of RGB
, make sure
that you specify a low value for red (12), a high value for green
(252), and a value under 50 for blue (42) to provide a clear contrast.
You must do these tasks from the Windows command line:
- From the install_path\config directory, specify:
copy cmt.cfg piel.cfg
This copies the Color Mapping Table configuration file into a file you can customize for your own purposes (in this case,pie1.cfg
) - Specify
notepad piel.cfg.
This lets you edit the configuration file and insert the applicable values to create the appropriate color mapping (whether GOCA to RGB or OCA to CIELAB) table. See the sample cmt.cfg configuration file below:
# ------------------------------------------------------- # Required, starts a Color Mapping Definition. # One definition for each Source to Target mapping. # ------------------------------------------------------- # ------------------------------------------------------- # BeginSourceDef: # Required, starts the Source Parameters # ------------------------------------------------------- BeginSourceDef: # ------------------------------------------------------- # ColorSpace: # Required, values= OCA | Highlight | GOCA # ------------------------------------------------------- ColorSpace: GOCA # ------------------------------------------------------- # ColorValue: # Required, values depend on Color Space # ------------------------------------------------------- ColorValue: 11 # ------------------------------------------------------- # ObjectType: # Optional, values= ObjArea | ImageData | PTOCData | # GOCAData | BCOCAData | AllOCA | Page | Overlay | # ObjsAll # default= ObjsAll # ------------------------------------------------------- ObjectType: GOCAData # ------------------------------------------------------- # PercentShading: # Optional, only valid for SourceColorSapce: Highlight, # values= 0 .. 100, 255 (all percentages), # default= 100 # ------------------------------------------------------- # PercentShading: # ------------------------------------------------------- # PercentCoverage: # Optional, only valid for SourceColorSpace: Highlight, # values= 0 .. 100, 255 (all percentages), # default= 100 # ------------------------------------------------------- # PercentCoverage: # ------------------------------------------------------- # EndSourceDef: # Required, ends the Source Parameters # ------------------------------------------------------- EndSourceDef: # ------------------------------------------------------- # BeginTargetDef: # Required, starts the Target Parameters # ------------------------------------------------------- BeginTargetDef: # ------------------------------------------------------- # ColorSpace: # Required, values= RGB | CMYK | Highlight | CIELAB # ------------------------------------------------------- ColorSpace: RGB # ------------------------------------------------------- # ColorValue: # Required, values depend on Color Space # ------------------------------------------------------- ColorValue: 12 252 42 # ------------------------------------------------------- # PercentShading: # Optional, only valid for TargetColorSpace: Highlight, # values= 0 .. 100, default= 100 # ------------------------------------------------------- # PercentShading: # ------------------------------------------------------- # PercentCoverage: # Optional, only valid for TargetColorSpace: Highlight, # values= 0 .. 100, default= 100 # ------------------------------------------------------- # PercentCoverage: # ------------------------------------------------------- # EndTargetDef: # Required, ends the Target Parameters # ------------------------------------------------------- EndTargetDef: # ------------------------------------------------------- # Required, ends a Color Mapping Definition. # ------------------------------------------------------- # EndMappingDef:
- Once you have finished editing the
pie1.cfg
file, save the file. - To create the Color Mapping Table object (MOD:CA) file that will
be used when you submit the job for printing, run the cmt utility
as the input file (-i flag):
cmt -i pie1.cfg -o pie1.out
This command produces a pie1.out output file.