Short:    Datatype for PovRay dump format (QRT)
Author:   billy@uni-paderborn.de (Michael Böhnisch)
Uploader: billy@uni-paderborn.de (Michael Böhnisch)
Type:     util/wb

QRT datatype 39.1 (first release)
---------------------------------

Datatype  for  PovRay  dump  format  images  (QRT style).  Currently uses a
simple 24-to-8 bit conversion with static 3×3×2 (R×G×B) bit quantization.

QRT format is not easy to detect since there is near to no type specific or
constant  information  in the files PovRay creates.  This release tests for
the following qualities:

  · File  size  must  match  height  and  width information.  Partial files
    written by PovRay are rejected.

  · Line  numbers  must  start  with 0 and increment to image height - 1 in
    sorted  order.  QRT does not explicitly forbid arbitrary line order but
    PovRay produces lines in sequence --- take it as a "feature", it really
    makes file type detection easier and safer.

Installation:   Simply  copy  the  file  Classes/DataTypes/qrt.datatype  to
SYS:Classes/Datatypes and files Devs/DataTypes/QRT#?  to DEVS:Datatypes and
reboot.

Direct comments, flames, flattery to my EMail address.

-Billy.


============================= Archive contents =============================

Original  Packed Ratio    Date     Time    Name
-------- ------- ----- --------- --------  -------------
    3036    1829 39.7% 01-Feb-95 10:30:06 +qrt.datatype
      88      70 20.4% 26-Nov-94 04:17:58 +QRT
     473     295 37.6% 06-Jul-94 12:38:54 +QRT.info
    1184     652 44.9% 01-Feb-95 10:35:20 +QRT_DT.readme
-------- ------- ----- --------- --------
    4781    2846 40.4% 01-Feb-95 21:43:02   4 files