attr: add ImagePos

[tormath1]

Hi,

I'd like to merge this attribute ImagePos (https://graphviz.org/doc/info/attrs.html#d:imagepos). Let me know if I need to add tests / other things. 😃

This attribute can only support a set of value:

• tl | Top Left
• tc | Top Centered
• tr | Top Right
• ml | Middle Left
• mc | Middle Centered (the default)
• mr | Middle Right
• bl | Bottom Left
• bc | Bottom Centered
• br | Bottom Right

Do we want to add a way to verify the value given by the user for this attribute ?

[awalterschulze]

Thank you, in principle this is a great idea.
I don't know how I missed this, good catch :)

I think a good place to start is to add a test, that uses the anal function.
https://github.com/awalterschulze/gographviz/blob/master/analysewrite_test.go#L104

This should reveal if you missed any steps.
If there is any doubt please don't hesitate to ask a question :)

[tormath1]

Hi @awalterschulze, it's done for the test. I simply added one test-case for imagepos = tc.

By the meantime, do you think it's possible to add Inframap (https://github.com/cycloidio/inframap) to the README (in the Users section). It's an open-source tool used to generate graph representing cloud infrastructure, we are using gographviz for the dot generation. :)

[awalterschulze]

Thank you this looks great :)

@tormath1 yes please create a pull request to add Inframap to the users list in the Readme, that would be amazing :D