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nabil6391 / graphview

Flutter GraphView is used to display data in graph structures. It can display Tree layout, Directed and Layered graph. Useful for Family Tree, Hierarchy View.
MIT License
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Use BuchheimWalkerConfiguration to show tree merge node has problem #8

Closed zhangxinagjunHJH closed 3 years ago

zhangxinagjunHJH commented 3 years ago

I use BuchheimWalkerConfiguration like this, there are 2 branch and one merge node, it's OK

`graph.addEdge(node1, node2, paint: Paint()..color = Colors.red); graph.addEdge(node2, node6); graph.addEdge(node6, node5);

graph.addEdge(node2, node3); graph.addEdge(node3, node4); graph.addEdge(node4, node5);` image

but if i change the order like this, it will show wrong connect line

`graph.addEdge(node1, node2, paint: Paint()..color = Colors.red); graph.addEdge(node2, node3); graph.addEdge(node3, node4); graph.addEdge(node4, node5);

graph.addEdge(node2, node6); graph.addEdge(node6, node5);` image

nabil6391 commented 3 years ago

Basically BuchheimWalker is for treelayouts only, if you want merged nodes, suggest you use Sugiyama

zhangxinagjunHJH commented 3 years ago

@nabil6391 Yes, I checked code both Sugiyama and FruchtermanReingoldAlgorithm, but i found they don't support change orientation to horizontal. can add this feature to them?

nabil6391 commented 3 years ago

Hm that is correct, yes I would prefer to add them but do not think it can be done soon.

zhangxinagjunHJH commented 3 years ago

@nabil6391 OK, Thank you very much! I will continue to pay attention and wait.

nabil6391 commented 3 years ago

Added support for different orientation in 0.6.5. Try it out. Closing for now.