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COPYEVAL(nged)		     BRL-CAD User Commands		COPYEVAL(nged)

NAME
       copyeval	- Creates a new	primitive object called	new_ primitiveby
       applying	the transformation matrices accumulated	along the
       path_to_old_primitive to	the leaf primitive shape object	at the end of
       the path	and saving the result under the	name new_ primitive.

SYNOPSIS
       copyeval	{new_primitive path_to_old_primitive}

DESCRIPTION
       Objects in a BRL-CAD model are stored as	Boolean	trees (combinations),
       with the	members	being primitive	shapes or other	Boolean	trees. Each
       member has a transformation matrix associated with it. This arrangement
       allows a	primitive to be	a member of a combination, and that
       combination may be a member of another combination, and so on. When a
       combination is displayed, the transformation matrices are applied to
       its members and passed down through the combinations to the leaf
       (primitive shape) level.	The accumulated	transformation matrix is then
       applied to the primitive	before it is drawn on the screen. The copyeval
       command creates a new primitive object called new_ primitive by
       applying	the transformation matrices accumulated	along the
	path_to_old_primitive to the leaf primitive shape object at the	end of
       the path	and saving the result under the	name new_ primitive.  The
	path_to_old_ primitive must be a legitimate path ending	with a
       primitive shape.

EXAMPLES
       The example shows the use of the	copyeval command to create a new
       primitive by applying the transformation	matrices along the path	to the
       old primitive.

       Example 1. Create a new primitive object	by applying the	transformation
       matrices	along the path to the old primitive.

       mged> copyeval shapeb comb1/comb2/comb3/shapea

       Creates shapeb from shapea by applying the accumulated transformation
       matrices	from the path comb1/comb2/comb3.

AUTHOR
       BRL-CAD Team

BUG REPORTS
       Reports of bugs or problems should be submitted via electronic mail to
       <devs@brlcad.org>, or via the "cadbug.sh" script.

BRL-CAD				  07/08/2017			COPYEVAL(nged)

NAME | SYNOPSIS | DESCRIPTION | EXAMPLES | AUTHOR | BUG REPORTS

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