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GR/DG(nged)		     BRL-CAD User Commands		   GR/DG(nged)

NAME
       gr, dg -	Add or remove primitives or primitive parents from a group
       using a GUI selection box. dg exits grouper mode.

SYNOPSIS
       gr {GroupName} {+ | -} [ListLimit] [-p]

DESCRIPTION
       Allows primitives or primitive parents to be added or removed from a
       group by	selecting them on the MGED display using a selection box.
       Objects are identified by the location of their vertices	on the
       display.	For example, a portion of a object may be within the selection
       box but if none of its vertices are then	it is not considered within
       the section box.	Because	of this, objects can only be selected if they
       are displayed in	wireframe. Drawing a selection box (left to right),
       objects completely in the box are selected. Drawing the selection box
       (right to left),	objects	completely and partly in the box are selected.
       To start	grouper	use the	command	'gr' or	'grouper'. Press and hold the
       center mouse button then	drag the mouse to create the selection box. If
       there are a large number	of vertices on the display, there will be a
       delay before the	selected objects are highlighted and control of	MGED
       is returned to the user.	To exit	grouper	mode, hold down	the 'ctrl' key
       and single-click	the center mouse button. You can also exit grouper
       mode with the 'dg' or 'done_grouper' commands. Objects in the group,
       while in	grouper	mode, will be displayed	(i.e. highlighted) in yellow
       wireframe. When entering	grouper	mode, if the chosen group already
       contains	objects, these existing	objects	will be	immediately displayed
       in yellow wireframe. As objects are added to the	group, they will also
       be highlighted in yellow. When you exit grouper mode, the yellow
       highlights will be removed.

       Caveats:	This command will not function as expected if a	selected
       object has matrices applied. The	xpush command can resolve this
       limitation.

OPTIONS
       GroupName
	   The name of the group to add/remove primitives or primitive
	   parents.

       +, -
	   Indicates if	to add or remove from group.

       ListLimit
	   As primitives/parents are selected using a selection	box, the names
	   of the selected objects can be listed. This option controls the
	   number of entries which will	be listed. By default this value is
	   zero. All selected objects will be listed, assuming the 'ListLimit'
	   is high enough, even	if they	are not	added to the group. This will
	   happen if some of the selected objects are already in the group.

       -p
	   Places the parent of	the selected primitives	in the group instead
	   of the primitives. With the '-p' option, if the primitive does not
	   have	a parent (i.e. is in the root) it will be ignored.

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			   GR/DG(nged)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | AUTHOR | BUG REPORTS

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