Node positions too far away on different sizes

[vco-80]

Hi

Seems that when having children with different width, the calculated x positions are too far away. Or i don't get what i'm making wrong.

Here is a simple example. You can just copy&paste it in the npm runkit (https://npm.runkit.com/d3-flextree):

var d3Flextree = require("d3-flextree")
const flextree = d3Flextree.flextree;

const data = {
    "id": "26d536a3-879f-493c-af2e-3785a3e7bd5c",
    "size": [
        360,
        409
    ],
    "children": [
        {
            "id": "e7e369db-ffd7-4b1a-a7d4-42a6d157c35c",
            "size": [
                460,
                609
            ],
            "children": []
        },
        {
            "id": "6a91d13d-dc13-45b9-8697-d105a443ac03",
            "size": [
                1103,
                1298
            ],
            "children": []
        }
    ]
};


const layout = flextree();
const tree = layout.hierarchy(data);
layout(tree);
tree.each(node => console.log(`(${node.x}, ${node.y})`));

These are the computed x/y positions of each node (printed from the console.log):

"(0, 0)"
"(-551.5, 409)"
"(230, 409)"

The calculated distance between the 2 children is 321.5 ((-551.5 + 460 - 230) * -1), but should be almost 0 because i don't have defined any spacings.

Or am I wrong?

Thanks for your help

[vco-80]

Ok, i get it. I think it's because the x position is the center of the element not the left position.