module XDot: sig
.. end
Reads layout information from xdot ASTs
Simple layout types
type
pos = float * float
2D coordinates
type
bounding_box = pos * pos
upper-left and bottom-right corners
Layout informations are parsed from xdot files
(dot files with graphviz layout).
Each node or edge layout thus contains several lists of
drawing operations.
See http://www.graphviz.org/doc/info/output.html#d:xdot
to understand the details of the layout informations.
type
node_layout = {
}
Each node has at least a position and a bounding box.
type
cluster_layout = {
}
type
edge_layout = {
}
val mk_node_layout : name:string ->
pos:pos ->
bbox:bounding_box ->
draw:XDotDraw.operation list ->
ldraw:XDotDraw.operation list -> node_layout
Creates a node layout
val mk_cluster_layout : pos:pos ->
bbox:bounding_box ->
draw:XDotDraw.operation list ->
ldraw:XDotDraw.operation list -> cluster_layout
Creates a cluster layout
val mk_edge_layout : draw:XDotDraw.operation list ->
ldraw:XDotDraw.operation list ->
hdraw:XDotDraw.operation list ->
tdraw:XDotDraw.operation list ->
hldraw:XDotDraw.operation list ->
tldraw:XDotDraw.operation list -> edge_layout
Creates an edge layout
Parsing and reading XDot
exception ParseError of string
module Make: functor (
G
:
Graph.Graphviz.GraphWithDotAttrs
) ->
sig
.. end
Instantiates a module which creates graph layouts from xdot files
Converts and reads various layout informations
val bounding_box : float * float -> float -> float -> bounding_box
bounding_box pos w h
converts a bounding box of center pos
,
width w
and height h
from a Dot file to a pair of corners
(lower left and upper right) in the world coordinate system.
val read_bounding_box : string -> bounding_box
val read_node_layout : Graph.Dot_ast.node_id -> Graph.Dot_ast.attr list -> node_layout
Reads xdot layouts from the dot ast
val read_edge_layout : Graph.Dot_ast.attr list -> edge_layout
val read_cluster_layout : Graph.Dot_ast.attr list -> cluster_layout