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From Datalog to SVG
Exporting graph data to text file and SVG with Datalog
And importing it again is just a matter of reading the data back in, looping over the properties, and adding them to a fresh graph. While experimenting with the export I decided to make a small DSL for drawing SVGs directly from Datalog queries. I won't go into the DSL in detail here, but you can recognize the Datalog queries pretty easily as they still use the prefixed variables?x and?y as we saw above.
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