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       genclock - generate a RADIANCE description of a clock


       genclock [ -f face_mat ][ -c case_mat ][ -n name ] { HH:MM | hours }


       Genclock  produces  a  RADIANCE  scene  description  of an analog clock
       showing the given hour.  The hour may  either  be  given  as  HH:MM  or
       decimal hours.

       The  face  of  the  clock  will  have  a  radius of 1.0 units, with the
       surrounding case 1.1 (2.2 diameter).  The origin is at  the  center  of
       the  back,  and  the  face  looks  in the positive X-direction.  The 12
       o’clock direction corresponds to  the  positive  Z-axis.   (The  Y-axis
       direction  is  3  o’clock.)  The xform(1) command may be used to resize
       and relocate the clock as desired.

       Normally, genclock produces all of the materials necessary for its  own
       description,  but  options  are provided to specify alternate materials
       for the face and case.  The numbers on the face are in dark  lettering,
       so the face material must be relatively light for them to show up well.
       By default, the clock is given  the  name  "clock,"  but  this  may  be
       changed with the -n option.


       To  produce a 12 inch diameter clock showing 10:35 and hang it at 60 on
       a wall facing the Y-direction at Y=10:

         genclock 10:35 | xform -s 6 -rz 90 -t 20 10 60


       Greg Ward


       genrbox(1),  genrev(1),  gensurf(1),  genworm(1),   rpict(1),   rvu(1),