GitHub で Graphviz を使う

GitHub は素で対応してないので、外部サービスを使います。

![](http://g.gravizo.com/g? と書いて、Graphviz のコードを続けるだけ。最後に ) で閉じます。

具体的には、次の Markdown で、下記の図が生成されます。

![](http://g.gravizo.com/g?
  digraph G {
    CoreData [shape=box]
    FLMAssetFetchService [shape=box]
    AppDelegate -> FLMAssetFetchService [label="1.start"]
    FLMAssetFetchService -> FLMAssetFetchOperation [label="2.Kick"]
    FLMAssetFetchOperation -> FLMAssetFetchService [label="3.NSNotification(FetchedAsset)"]
    FLMAssetFetchOperation -> FLMFetchedAssetTransformer [label="ALAsset or PHAsset"]
    FLMFetchedAssetTransformer -> FLMAssetFetchOperation [label=FLMFetchedAsset]
    FLMAssetFetchService -> "FLMAssetStoreOperation" [label="4.FetchedAsset"]
    "FLMAssetStoreOperation" -> CoreData [label="5.Commit FLMPhoto, FLMAlbum"]
    "FLMAssetStoreOperation" -> App [label="6.Notify via NSNotification"]
  }
)

![](http://g.gravizo.com/g?
digraph G {
CoreData [shape=box]
FLMAssetFetchService [shape=box]
AppDelegate -> FLMAssetFetchService [label="1.start"]
FLMAssetFetchService -> FLMAssetFetchOperation [label="2.Kick"]
FLMAssetFetchOperation -> FLMAssetFetchService [label="3.NSNotification(FetchedAsset)"]
FLMAssetFetchOperation -> FLMFetchedAssetTransformer [label="ALAsset or PHAsset"]
FLMFetchedAssetTransformer -> FLMAssetFetchOperation [label=FLMFetchedAsset]
FLMAssetFetchService -> "FLMAssetStoreOperation" [label="4.FetchedAsset"]
"FLMAssetStoreOperation" -> CoreData [label="5.Commit FLMPhoto, FLMAlbum"]
"FLMAssetStoreOperation" -> App [label="6.Notify via NSNotification"]
}
)

ドキュメント書くときにすごく便利です（*´ω｀*）