# Exploring Graphs with Elixir:

**URL:** <https://forum.devtalk.com/t/exploring-graphs-with-elixir/16419>\
**Category:** PragProg Customers\
**Tags:** book-exploring-graphs-with-elixir, question\
**Created:** [7 August 2021 13:21 UTC](https://forum.devtalk.com/t/exploring-graphs-with-elixir/16419 "2021-08-07T13:21:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![pragmoose](https://forum.devtalk.com/letter_avatar_proxy/v4/letter/p/d9b06d/32.png) [@pragmoose](https://forum.devtalk.com/u/pragmoose)\
**Post date:** [7 August 2021 13:21 UTC](https://forum.devtalk.com/t/exploring-graphs-with-elixir/16419/1 "2021-08-07T13:21:07Z")

</div>

Title: Exploring Graphs With Elixir B4 - Native graph serialization not working? (51)

I’m working through the section on visualizing graphs. I was able to generate the png of the H2O graph where the two copies of the H molecule are superimposed on each other.

I tried to implement the patch, but the serialization doesn’t appear to be taking effect. According to the book, I should be getting

```auto
strict graph {
"o" [label="O"]
"h1" [label="H"]
"h2" [label="H"]
"h1" -- "o" [weight=1]
"h2" -- "o" [weight=1]
}

```

but I’m still getting

```auto
strict graph {
"O"
"H"
"H"
"H" -- "O" [weight=1]
"H" -- "O" [weight=1]
}

```

as in the first attempt.

I copied the code for the `NativeGraph.Serializer` and `NativeGraph.Serializers.DOT` to the respective places in my copy of the code. Is there something else I need to do?