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Graphical Object Tagging (GOT)
The bitrgbtags is a non-standard printer device that supports tagging
graphical objects according to type, where types are: text, image,
vector and unspecified. The type is encoded as a byte and interleaved
in the framebuffer. Each pixel has a tag.
limitations and oddities:
o GOT doesn't band. In fact the the device prototype disables banding.
o GOT always has 24 bits of color with 3 components.
o GOT uses a global variable to maintain its state.
o GOT currently breaks raster operations.
o GOT hasn't been tested much.
tools (dotags.sh and friends)
dotags.sh <pcl_file> produces
o bit.tmp - bitrgb file with pixel tags for object types.
o bit_detagged.tmp.ppm - the file stripped of tags and converted to
ppmraw output.
o bit.tmp.ppm - detagged bit file converted to ppmraw output.
o tag.tmp.ppm - a color coded by object type version of the output
unknown - white
untouched - yellow
text - red
image - green
path - blue
dotags.sh will display the output file and tag using imagemagick.
dotags.sh uses the helper C programs tagimage.c and detag.c
dotags.sh should only be run in tools/tags after the bittagrgb device
has been compiled into ../../main/obj/pcl6 executable.
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