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Problem with port alignment [message #1836551]

Thu, 07 January 2021 05:16

Eclipse User

Hello,

I am currently working on a graph, which has a node (parent-node) with two ports on east and west side (which are representing input and output).
In this node there are some other nodes (child-nodes) which are somehow connected to the ports of the parent-node.

By default, ports are aligned in the center, but in my case it wasn't. I've tried to create an example to reproduce this in the web ide (examples page).

node default {
    algorithm: layered
    nodeLabels.placement: "INSIDE V_TOP H_CENTER" 
    label "Default" { layout [ size: 43, 15 ] }

    node InnerDiagram {
        portConstraints: FIXED_ORDER
        portAlignment.east: CENTER // This doesn't have an effect
        portAlignment.west: CENTER // This too

        port p1 { side: WEST }
        port p2 { side: EAST } 

        node n2 { label "2" }
        node n3 { label "3" }

        edge InnerDiagram.p1 -> n2
        edge InnerDiagram.p1 -> n3
        edge n2->InnerDiagram.p2
        edge n3->InnerDiagram.p2
    }
}

InnerDiagram.p1 and InnerDiagram.p2 are ports which are not aligned in the center.

Is this a bug or is this a misunderstanding/wrong configuration? Thank you in advance.

Best regards
MKaraman

Re: Problem with port alignment [message #1836585 is a reply to message #1836551]

Fri, 08 January 2021 02:32

Eclipse User

I believe as soon as hierarchical ports are involved the hierarchical node's port alignment cannot be influenced any more.

You could still set port constraints to FIXED_POS and compute port positions yourself. For centering that's a bit problematic though as you need to know the resulting diagram's size to determine the center.

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