domain_ref_base.json

{
    "data": [{
        "x": [1, 2],
        "y": [3, 1],
        "type": "scatter",
        "xaxis": "x",
        "yaxis": "y",
        "line": { "color": "rgb(127,127,127)" }
    },{
        "x": [1, 3],
        "y": [1, 2],
        "type": "scatter",
        "xaxis": "x2",
        "yaxis": "y2",
        "line": { "color": "rgb(127,127,127)" }
    }
    ],
        "layout": {
            "xaxis": {
                "domain": [0,0.75],
                "range": [1, 4]
            },
            "yaxis": {
                "domain": [0,0.4],
                "range": [1, 4]
            },
            "xaxis2": {
                "domain": [0.75,1],
                "range": [1, 5],
                "anchor": "y2"
            },
            "yaxis2": {
                "domain": [0.4,1],
                "range": [1, 3],
                "anchor": "x2"
            },
            "margin": { "l": 100, "r": 100, "t": 100, "b": 100, "autoexpand": false },
            "width": 400,
            "height": 400
        }
}