Add rankdir command line flag for graph layout direction.

ondrajz / go-callvis

Visualize call graph of a Go program using Graphviz

https://ofabry.github.io/go-callvis

MIT License

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Add rankdir command line flag for graph layout direction. #92

Closed russmack closed 2 years ago

russmack commented 3 years ago

This PR adds the -rankdir flag to the command, enabling control of the graph layout direction eg from top to bottom instead of the default left to right.