Connecting two nodes without labels on edges causes one of edges not to be created about n2g HOT 4 CLOSED

Hi, thank you for reporting the issue.

That was a restriction in drawio module in release 0.1.2 but latest code on master brunch includes capability to add labels to links/edges for drawio diagrams - docs - added it as result of working on #1. If you want to test, feel free to install from master:

python3 -m pip install git+https://github.com/dmulyalin/N2G

Yet to release N2G 0.2.0, as planning to add new features and refactor the code a bit. But 0.2.0 will include capability to add src/trgt labels to edges for drawio.

from n2g.

Thanks for the reply. I am using the latest from master branch. These two links do not have labels (nor need them), but one is A->B and the other is B->A. They are getting collapsed into a single link (which is semantically incorrect for what I need).

I did a clean venv with the pip install approach and the same result.

from n2g.

Ok, I see.

Each link need to have unique ID attribute assigned, the most natural way is to use link labels and source/target nodes ID to derive link id. If several links with no labels added between same nodes, links will end up with same ID value calculated, by default second link will be skipped as a duplicate.

Added support for optional link_id attribute to add_link method starting with commit 78c7395. link_id must be unique across all links on this particular diagram.

from N2G import drawio_diagram as create_drawio_diagram

data = {
    "nodes": [
        {"id": "node-1"},
        {"id": "node-2"}
    ],
    "links": [
        {
            "source": "node-1", 
            "target": "node-2", 
            "link_id": 1,
            'style': 'endArrow=classic;endFill=0;sourcePortConstraint=east;targetPortConstraint=west;edgeStyle=orthogonalEdgeStyle;'
        },
        {
            "source": "node-2", 
            "target": "node-1", 
            "link_id": 2,
            'style': 'endArrow=classic;endFill=0;sourcePortConstraint=east;targetPortConstraint=west;edgeStyle=orthogonalEdgeStyle;'
        }
    ]
}    

drawio_drawing = create_drawio_diagram()
drawio_drawing.from_dict(data)
drawio_drawing.dump_file("diagram.drawio", ".")

from n2g.

Great - that works. Can work with that. Thanks.

BTW you need to add ttp and openpyxl to your package dependencies in the instructions

from n2g.