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ginsu (1)
  • >> ginsu (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
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    NAME
         ginsu - interactively slice geoms
    
    SYNOPSIS
         ginsu
    
    DESCRIPTION
         Ginsu is an interactive slicing tool  designed  to	 be  used
         with  Geomview.   It allows the user to move around a square
         slicing plane to an arbitrary position and	then to	 slice	a
         particular	 geom  with that plane.	Slicing	involves dividing
         the geom into two seperate	geoms at the plane  of	cleavage.
         Once  slicing  has	been performed,	each of	the two	new geoms
         created can be moved around and examined independently  from
         the other.	Ginsu runs only	on Silicon Graphics machines.
    
         Ginsu works by constantly querying	geomview for the position
         of	 the plane as one moves	it and then updating the internal
         plane equation it uses. The coefficients  of  this	 equation
         appear  on	 the  main panel for examination.  When	the plane
         has been properly positioned, one enters  the  name  of  the
         geom  that	 one  wishes to	slice in the 'Target Clip Object'
         text window, then clicks on the  'Slice!'	button.	 The  old
         geom is then erased and replaced by two new geoms.	The speed
         at	which this occurs depends on your machine  and	the  com-
         plexity of	the geom.
    
         In	some cases one may want	to  manually  enter  the  coeffi-
         cients  of	 the  slicing  plane. This can be accomplished by
         toggling on the 'Edit' button. Ginsu is now in edit mode and
         will no longer update the coefficients if the plane is moved
         about inside  Geomview.  To  change  coefficients	now,  one
         clicks  in	 each  coefficient  text  box  and types in a new
         number followed by	enter. The  plane  will	 be  repositioned
         each time to match	the new	set of coefficients. Toggling the
         'Edit' button off will put	us back	in interactive mode.
    
         Some things to keep in mind: Ginsu	turns  normalization  off
         when  it  is  run and prevents it from being turned back on.
         This  is  because	keeping	 normalization	can   have   some
         unpleasant	effects	when cutting things. Ginsu depends on the
         clipping plane being  present.  If	 the  clipping	plane  is
         somehow deleted, Ginsu is then forced to exit.
    
    BUGS
         Sometimes color or	normal information is lost when	 clipping
         certain geoms.  This is because ginsu always converts a geom
         to	an OFF format geom before clipping it. When clipping  the
         "World"  geom,  everything	in the world becomes consolidated
         into two geoms (this could	 actually  be  thought	of  as	a
         feature).
    
    SEE ALSO
         geomview(1) oogl(5)
    
    AUTHOR
         Daeron Meyer	      email: [email protected]
         The Geometry Center      phone: (612) 626-8302
         1300 South	Second Street
         Minneapolis, MN 55454
    
    
    
    


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