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Sample Flux Map

I need to create a Map with the Import and Export Flux between countries. I have the needed data in my table. But I wish to know if there is any tool or extension which allow me to create those lines or arrows automatically (similar to how we do with labels, but those ones create word, which organize themselves in the Data Frame).

For that all that I should do is to indicate lineament of origin and destiny, representing the seaports.

I need to do something like this, but with arrows:

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If you have say 100 countries importing from and exporting to each other don't you potentially have a LOT of lines to represent on your map? I'm +1-ing your question to try and give you enough rep to post a picture of what you are trying to achieve. –  PolyGeo Sep 10 '13 at 22:53
    
Nando, eles querem um esboço do que tu estás querendo. Podes fazer um e postar editando a questão. Só me passar a imagem e eu faço isso pra ti. –  EASI Sep 11 '13 at 14:05
    
Take a look at the other questions that have the flow tag. A lot of similar questions out there, such as How to create a trade flow map in Arcgis or any free software –  RyanDalton Sep 11 '13 at 15:01
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1 Answer

There is a distributive flow tool available in the applications prototype lab.
Here is a blog and some links and data.
Even if you are not looking for this.
I like it so here.
Dist flow

Credit: Brad Simantel
With your edit addition to the question I will add this link for placing line decorations with code.
If you desire more help on using arrows add to your question and I can provide some detail.

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+1 - I like the look of it too! –  PolyGeo Sep 11 '13 at 6:04
    
Fantastic! This is quite elegant. –  EASI Sep 11 '13 at 14:08
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This tool is very interesting, but I need to represent direct flows. In the figure above flows are mixed in the way. –  Fernando Alves Sep 11 '13 at 15:48
    
I have not been through the exercise provided but I think they are all single lines that offset parallel when they are coincident in origin or destination. The example shows 1 destination. perhaps with multiple destination you would get the results you are looking for. Also you can use line decorations to create arrows (however not sure how it would work with this solution). –  Brad Nesom Sep 11 '13 at 19:18
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