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NAME
     animate - animate a sequence of geomview files

SYNOPSIS
     animate [-p] [-b] [-s speed] [-o] [-S script] [-hide] [-f file1 file2 ...]

DESCRIPTION
     Animate  is  an  interactive  animation  tool   specifically
     designed  to be used with Geomview. It provides several sim-
     ple animation controls such as looping, bouncing, and single
     frame  stepping,  as  well	 as adjustable speed playing. The
     program works by telling geomview to read in a  sequence  of
     geomview  files  and  then	 telling geomview to display each
     frame of the sequence in order.

     There are two methods that	Animate	provides  for  specifying
     which frames one wants to have in the sequence being viewed.
     The first method is to enter the name of  every  frame  into
     the  text	input  box and press return or click on	load. The
     name of each frame	must correspond	with the name of a  geom-
     view file existing	in the file system.

     EXAMPLES

	    pict1 pict2	pict3 pict4
	    pict*
	    pic??

     The second	method of loading frames is to	first  create  an
     animation	script	file outside of	animate	and then load the
     script in by typing its name in the input box  and	 clicking
     on	 the  script button. The advantage of this method is that
     you can more easily specify the exact  order  in  which  you
     want  the	frames to be shown. The	format of the script file
     is	a list of frame	names each followed by	a  newline.  Com-
     ments prepended by	a # sign are allowed.

     EXAMPLE SCRIPT FILE

	    # list of frames for
	    # my rotating cube movie
	    cube.02
	    cube.04
	    cube.03 # get rid of this frame later
	    cube.01
	      .
	      .
	      .
	    cube.90



     Loading frames into memory	may take  a  little  time,  espe-
     cially  if	 each frame is a particularly large file. Be sure
     the machine you're	using has sufficient memory to	load  all
     the  frames you desire. Once all frames have been loaded, an
     'animate' object will appear in the geomview object browser.
     It	is now possible	to begin animating.

     Scrolling through frames can be accomplished in several dif-
     ferent  ways.   The first,	and most obvious way is	by 'play-
     ing' the frames. Clicking on the Play button causes  animate
     to	 begin playing through the frames in order, starting with
     the first frame or	whichever frame	has been  selected.   The
     corresponding name	of each	frame being shown is shown in the
     pink text-entry box.  Click on Stop to cease playing.

     Animation speed depends on	the size and  complexity  of  the
     object in each frame. Thus	different sequences can	have con-
     siderably different top playing speeds. Use the Speed slider
     to	 set  an upper limit to	the animation rate.  You can also
     play slowly through the frames can	also by	clicking  repeat-
     edly on either step button.

     Press the Bounce button  to  enter	 bounce	 mode.	While  in
     bounce  mode,  direction of play reverses whenever	the first
     or	last frame is reached.	Clicking on  either  Step  button
     determines	the playing direction.

     Clicking on Once puts animate in 'once' mode.  While in this
     mode,  upon  reaching  the	first or last frame (depending on
     which direction you are going) of a specified sequence, ani-
     mate  will	 stop  playing.	 Normal	playing	can be resumed by
     clicking on Once again to exit this mode.

     The Info button will bring	up a short menu	containing  help-
     ful  hints	 for  program  usage. Clicking on the exit button
     will cause	the program to exit.

OPTIONS
     -p	  Start	 playing  through  the	frames	right  away  upon
	  startup.

     -b	  Go into bounce mode upon startup.

     -s	speed
	  Set the speed	of play	upon startup. The value	of  speed
	  may  be an integer between 0 and 100 which roughly sig-
	  nifies the percentage	of top playing speed.

     -o	  Set animation	to play	through	only once upon startup.

     -S	script
	  Specify name of script containing filenames for objects
	  to  be  read	in upon	startup. Takes precedence over -f
	  option if present.

     -hide
	  Makes	animate	invisible  upon	 startup.  *Warning*  all
	  animate  commands must be specified on the command line
	  when this option is used  since  there  is  no  way  to
	  access the main window.

     -f	file1 file2 ...
	  Specify names	of files containing objects to be read in
	  upon startup.

BUGS
     When loading sequences  one  after	 another,  geomview  will
     often  not	 load a	sequence on the	first try. This	can often
     be	remedied by telling animate  to	 load  the  sequence  yet
     again.

SEE ALSO
     geomview(1) oogl(5)

AUTHOR
     Daeron Meyer	      email: daeron@geom.umn.edu
     The Geometry Center      phone: (612) 626-8304
     1300 South	Second Street
     Minneapolis, MN 55454

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