			LINK QUICK REFERENCE
			____________________


KEY:    %<command>  		(type it)
	Menu1-Menu2-Menu3-option(select this cascade of menus with left button)
	<1st>  			(left button)
	<2nd>  			(both buttons (held simultaneously))
	<3rd>  			(right button)
	<Shift-1st> 		(left button with shift key down)

CREATE VERTICES
	<3rd>  (click where you want it)

CREATE EDGES
	<3rd>  (click on endpoints)
	(If in a mixed graph, <3rd> creates directed edges,
	<Control-3rd> creates undirected edges.

SELECTING (HIGHLIGHTING) VERTICES AND EDGES
	<1st>
	to add to selection, <Shift-1st>
	to grab a region of objects, <1st> in an open area and drag mouse

DELETING VERTICES AND EDGES
	select objects to delete, type "x" (no quotes)  *or*
	using menus:   Edit-delete

CLEARING SCREEN
	menus:   Edit-clear

COLORING VERTICES
	Select with <1st>, 
	menus: Attributes-color  

COLORING EDGES
	Select with <1st>, 
	menus: Attributes-color  

MOVE VERTICES, VERTEX LABELS AND EDGE LABELS
	<Ctrl-1st>  
	       (if you mess up and inadvertently click the <3rd> button
		first, you get the beginnings of an edge segment.  Click
		<3rd> in a clear area of the canvas to get rid of it.)

CURVE EDGES
	<1st>  (after clicking on edge label - see LABELS below for 
		retrieving)

LABELS
	menus: Attributes-Labels-show all         (displays all labels)
	       (there are many similar options)

SETTING LABELS
	menus:  Attributes-Labels-set
		(another window will come up prompting you for a label.
		 It may appear off the visible part of the screen.  Use
		 the "radar" in the upper left-hand corner of the screen
		 to locate icon of new window, scroll using track ball to
		 get there).

CHANGING VERTEX SIZE
	menus:  Attributes-Size

CHANGING EDGE WIDTH
	menus:  Attributes-Width

LOADING GRAPHS FROM FILE
	menus:  File-load

SAVING GRAPHS TO FILE
	menus:  File-save   (you should keep to the "file.g" naming convention)

CREATING EMPTY DIRECTED GRAPHS
	Find the window that has two buttons:  Tutoral and Graph Windows.
	Graph Windows-Graph-Directed-No Multiple Edges
	(this should bring up a new window containing a directed graph)

CREATING EMPTY UNDIRECTED GRAPHS
	Find the window that has two buttons:  Tutoral and Graph Windows.
	Graph Windows-Graph-Undirected-No Multiple Edges
	(this should bring up a new window containing a directed graph)

*************************************************************************
*********NOTE: GENERATION IS SLOW.  BRINGING UP A C-5 or K-5 is**********
               probably acceptable for class, but a 6x6 grid   
	       takes over one minute to load.  I'd suggest creating
	       one before class, then moving it to another "room"
	       in the windowing system using the <2nd> button in the
	       icon box in the upper left-hand corner of the screen.
	       Clicking with <1st> changes "rooms."
*************************************************************************

GENERATING CYCLES
	menus:  File-Generate-Graph-Undirected-Cycle
		(a window will come up prompting you for the number of
		 vertices)

GENERATING COMPLETE GRAPHS
	menus:  File-Generate-Graph-Undirected-Complete Graph
		(a window will come up prompting you for the number of
		 vertices)

GENERATING GRID GRAPHS
	menus:  File-Generate-Graph-Undirected-Grid Graph
		(a window will come up prompting you for the number of
		 rows and the number of columns)

ALGORITHMS
	Don't seem to show up to well on lcd.  DFS works, but Kruskal
	animation isn't intuitive yet.   I would just use the mouse to
	click and describe algorithms manually.

LAYOUTS
	menus:  Layouts-Circle
	        Layouts-Random
	        Layouts-Spring
	        Layouts-Bipartite (mainly useful for hypergraphs)
