5.5 Graph Functions

(add-links parent child) → void?

parent : (is-a?/c graph-snip<%>)

child : (is-a?/c graph-snip<%>)

(add-links parent child) → void?

parent : (is-a?/c graph-snip<%>)

child : (is-a?/c graph-snip<%>)

(add-links   parent             child             dark-pen             light-pen             dark-brush             light-brush            [ label])   →   void?

parent : (is-a?/c graph-snip<%>)

child : (is-a?/c graph-snip<%>)

dark-pen : (or/c (is-a?/c pen) false/c)

light-pen : (or/c (is-a?/c pen) false/c)

dark-brush : (or/c (is-a?/c brush%) false/c)

light-brush : (or/c (is-a?/c brush%) false/c)

label : (or/c string? false/c) = #f

(add-links   parent             child             dark-pen             light-pen             dark-brush             light-brush             dx             dy            [ label])   →   void?

parent : (is-a?/c graph-snip<%>)

child : (is-a?/c graph-snip<%>)

dark-pen : (or/c (is-a?/c pen) false/c)

light-pen : (or/c (is-a?/c pen) false/c)

dark-brush : (or/c (is-a?/c brush%) false/c)

light-brush : (or/c (is-a?/c brush%) false/c)

dx : real?

dy : real?

label : (or/c string? false/c) = #f

Connects a parent snip to a child snip within a pasteboard.

The default dark-pen/dark-brush and light-pen/light-brush are blue and purple, respectively. The dark-pen and dark-brush are used when the mouse cursor is over the snip (or a child or parent), and the light-pen and light-brush are used when the mouse cursor is not over the snip. The brush is used to draw inside the arrow head and the pen is used to draw the border of the arrowhead and the line connecting the two snips.

if label is provided and not #f, it is used as a label on the edge.

When dx and dy are provided, the are offsets for the head and the tail of the arrow. Otherwise, 0 offsets are used.

(add-links/text-colors   parent             child             dark-pen             light-pen             dark-brush             light-brush             dark-text             light-text             dx             dy             label)   →   void?

parent : (is-a?/c graph-snip<%>)

child : (is-a?/c graph-snip<%>)

dark-pen : (or/c (is-a?/c pen) false/c)

light-pen : (or/c (is-a?/c pen) false/c)

dark-brush : (or/c (is-a?/c brush%) false/c)

light-brush : (or/c (is-a?/c brush%) false/c)

dark-text : (or/c (is-a?/c color%) false/c)

light-text : (or/c (is-a?/c color) false/c)

dx : real?

dy : real?

label : (or/c string? false/c)

Like add-links, but with extra dark-text and light-text arguments to set the colors of the label.