graphviz-2999.20.0.2: Bindings to Graphviz for graph visualisation.

Copyright(c) Matthew Sackman Ivan Lazar Miljenovic
License3-Clause BSD-style
MaintainerIvan.Miljenovic@gmail.com
Safe HaskellNone
LanguageHaskell2010

Data.GraphViz.Types.Canonical

Contents

Description

A canonical Dot graph requires that within each graph/sub-graph, the statements are in the following order:

  • global attributes
  • sub-graphs/clusters
  • nodes
  • edges

This Dot graph representation is ideally suited for converting other data structures to Dot form (especially with the help of graphElemsToDot from Data.GraphViz).

If you require arbitrary ordering of statements, then use Data.GraphViz.Types.Generalised.

The sample graph could be implemented (this is actually the result of calling canonicalise from Data.GraphViz.Algorithms on the generalised one) as:

DotGraph { strictGraph = False
         , directedGraph = True
         , graphID = Just (Str "G")
         , graphStatements = DotStmts { attrStmts = []
                                      , subGraphs = [ DotSG { isCluster = True
                                                            , subGraphID = Just (Num (Int 0))
                                                            , subGraphStmts = DotStmts { attrStmts = [ GraphAttrs [ style filled
                                                                                                                  , color LightGray
                                                                                                                  , textLabel "process #1"]
                                                                                                     , NodeAttrs [style filled, color White]]
                                                                                       , subGraphs = []
                                                                                       , nodeStmts = [ DotNode "a0" []
                                                                                                     , DotNode "a1" []
                                                                                                     , DotNode "a2" []
                                                                                                     , DotNode "a3" []]
                                                                                       , edgeStmts = [ DotEdge "a0" "a1" []
                                                                                                     , DotEdge "a1" "a2" []
                                                                                                     , DotEdge "a2" "a3" []
                                                                                                     , DotEdge "a3" "a0" []]}}
                                                    , DotSG { isCluster = True
                                                            , subGraphID = Just (Num (Int 1))
                                                            , subGraphStmts = DotStmts { attrStmts = [ GraphAttrs [textLabel "process #2", color Blue]
                                                                                                     , NodeAttrs [style filled]]
                                                                                       , subGraphs = []
                                                                                       , nodeStmts = [ DotNode "b0" []
                                                                                                     , DotNode "b1" []
                                                                                                     , DotNode "b2" []
                                                                                                     , DotNode "b3" []]
                                                                                       , edgeStmts = [ DotEdge "b0" "b1" []
                                                                                                     , DotEdge "b1" "b2" []
                                                                                                     , DotEdge "b2" "b3" []]}}]
                                      , nodeStmts = [ DotNode "end" [shape MSquare]
                                                    , DotNode "start" [shape MDiamond]]
                                      , edgeStmts = [ DotEdge "start" "a0" []
                                                    , DotEdge "start" "b0" []
                                                    , DotEdge "a1" "b3" []
                                                    , DotEdge "b2" "a3" []
                                                    , DotEdge "a3" "end" []
                                                    , DotEdge "b3" "end" []]}}

Note that whilst the above graph represents the same Dot graph as specified in Data.GraphViz.Types.Generalised, etc., it may be drawn slightly differently by the various Graphviz tools.

Synopsis

Documentation

data DotGraph n Source #

A Dot graph in canonical form.

Constructors

DotGraph 

Fields

Instances

Functor DotGraph Source #

Assumed to be an injective mapping function.

Methods

fmap :: (a -> b) -> DotGraph a -> DotGraph b #

(<$) :: a -> DotGraph b -> DotGraph a #

(Ord n, PrintDot n, ParseDot n) => PPDotRepr DotGraph n Source # 
(Ord n, ParseDot n) => ParseDotRepr DotGraph n Source # 
(Ord n, PrintDot n) => PrintDotRepr DotGraph n Source # 
Ord n => DotRepr DotGraph n Source # 
Ord n => FromGeneralisedDot DotGraph n Source # 
Eq n => Eq (DotGraph n) Source # 

Methods

(==) :: DotGraph n -> DotGraph n -> Bool #

(/=) :: DotGraph n -> DotGraph n -> Bool #

Ord n => Ord (DotGraph n) Source # 

Methods

compare :: DotGraph n -> DotGraph n -> Ordering #

(<) :: DotGraph n -> DotGraph n -> Bool #

(<=) :: DotGraph n -> DotGraph n -> Bool #

(>) :: DotGraph n -> DotGraph n -> Bool #

(>=) :: DotGraph n -> DotGraph n -> Bool #

max :: DotGraph n -> DotGraph n -> DotGraph n #

min :: DotGraph n -> DotGraph n -> DotGraph n #

Read n => Read (DotGraph n) Source # 
Show n => Show (DotGraph n) Source # 

Methods

showsPrec :: Int -> DotGraph n -> ShowS #

show :: DotGraph n -> String #

showList :: [DotGraph n] -> ShowS #

ParseDot n => ParseDot (DotGraph n) Source # 
PrintDot n => PrintDot (DotGraph n) Source # 

Sub-components of a DotGraph.

data DotStatements n Source #

Constructors

DotStmts 

Instances

Functor DotStatements Source # 

Methods

fmap :: (a -> b) -> DotStatements a -> DotStatements b #

(<$) :: a -> DotStatements b -> DotStatements a #

Eq n => Eq (DotStatements n) Source # 
Ord n => Ord (DotStatements n) Source # 
Read n => Read (DotStatements n) Source # 
Show n => Show (DotStatements n) Source # 
ParseDot n => ParseDot (DotStatements n) Source # 
PrintDot n => PrintDot (DotStatements n) Source # 

data DotSubGraph n Source #

Instances

Functor DotSubGraph Source # 

Methods

fmap :: (a -> b) -> DotSubGraph a -> DotSubGraph b #

(<$) :: a -> DotSubGraph b -> DotSubGraph a #

Eq n => Eq (DotSubGraph n) Source # 
Ord n => Ord (DotSubGraph n) Source # 
Read n => Read (DotSubGraph n) Source # 
Show n => Show (DotSubGraph n) Source # 
ParseDot n => ParseDot (DotSubGraph n) Source # 
PrintDot n => PrintDot (DotSubGraph n) Source # 

Re-exported from Data.GraphViz.Types

data GraphID Source #

A polymorphic type that covers all possible ID values allowed by Dot syntax. Note that whilst the ParseDot and PrintDot instances for String will properly take care of the special cases for numbers, they are treated differently here.

Constructors

Str Text 
Num Number 

data GlobalAttributes Source #

Represents a list of top-level list of Attributes for the entire graph/sub-graph. Note that GraphAttrs also applies to DotSubGraphs.

Note that Dot allows a single Attribute to be listed on a line; if this is the case then when parsing, the type of Attribute it is determined and that type of GlobalAttribute is created.

Constructors

GraphAttrs 

Fields

NodeAttrs 

Fields

EdgeAttrs 

Fields

data DotNode n Source #

A node in DotGraph.

Constructors

DotNode 

data DotEdge n Source #

An edge in DotGraph.

Constructors

DotEdge 

Fields