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Update README.md

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Knut Sveidqvist
2014-12-01 09:16:27 +01:00
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@@ -251,5 +251,27 @@ click nodeId callback
* nodeId is the id of the node
* callback is the name of a javascript function defined on the page displaying the graph, the function will be called with the nodeId as parameter.
## Usage of the parser as a seperate module
### Setup
```
var graph = require('./graphDb');
var flow = require('./parser/flow');
flow.parser.yy = graph;
```
### Parsing
```
flow.parser.parse(text);
```
### Data extraction
```
graph.getDirection();
graph.getVertices();
graph.getEdges();
```
# Credits
Many thanks to the [d3](http://d3js.org/) and [dagre-d3](https://github.com/cpettitt/dagre-d3) projects for providing the graphical layout and drawing libraries!