Chart::Plotly::Trace::Sankey::Node - This attribute is one of the possible options for the trace sankey.


version 0.029


 use Chart::Plotly qw(show_plot);
 use Chart::Plotly::Trace::Sankey;
 # Example data from:
 my $sankey = Chart::Plotly::Trace::Sankey->new(
     orientation => "h",
     node        => {
         pad       => 15,
         thickness => 30,
         line      => {
             color => "black",
             width => 0.5
         label     => [ "A1", "A2", "B1", "B2", "C1", "C2" ],
         color     => [ "blue", "blue", "blue", "blue", "blue", "blue" ]
     link        => {
         source => [ 0, 1, 0, 2, 3, 3 ],
         target => [ 2, 3, 3, 4, 4, 5 ],
         value  => [ 8, 4, 2, 8, 4, 2 ]
 show_plot([ $sankey ]);


This attribute is part of the possible options for the trace sankey.

This file has been autogenerated from the official plotly.js source.

If you like Plotly, please support them: Open source announcement:

Full reference:


This is an unofficial Plotly Perl module. Currently I'm not affiliated in any way with Plotly. But I think plotly.js is a great library and I want to use it with perl.



Serialize the trace to JSON. This method should be called only by JSON serializer.


  • color

    Sets the `node` color. It can be a single value, or an array for specifying color for each `node`. If `node.color` is omitted, then the default `Plotly` color palette will be cycled through to have a variety of colors. These defaults are not fully opaque, to allow some visibility of what is beneath the node.

  • colorsrc

    Sets the source reference on for color .

  • description

  • groups

    Groups of nodes. Each group is defined by an array with the indices of the nodes it contains. Multiple groups can be specified.

  • hoverinfo

    Determines which trace information appear when hovering nodes. If `none` or `skip` are set, no information is displayed upon hovering. But, if `none` is set, click and hover events are still fired.

  • hoverlabel

  • hovertemplate

    Template string used for rendering the information that appear on hover box. Note that this will override `hoverinfo`. Variables are inserted using %{variable}, for example "y: %{y}". Numbers are formatted using d3-format's syntax %{variable:d3-format}, for example "Price: %{y:$.2f}". for details on the formatting syntax. Dates are formatted using d3-time-format's syntax %{variable|d3-time-format}, for example "Day: %{2019-01-01|%A}". for details on the date formatting syntax. The variables available in `hovertemplate` are the ones emitted as event data described at this link Additionally, every attributes that can be specified per-point (the ones that are `arrayOk: true`) are available. variables `value` and `label`. Anything contained in tag `<extra>` is displayed in the secondary box, for example "<extra>{}</extra>". To hide the secondary box completely, use an empty tag `<extra></extra>`.

  • hovertemplatesrc

    Sets the source reference on for hovertemplate .

  • label

    The shown name of the node.

  • labelsrc

    Sets the source reference on for label .

  • line

  • pad

    Sets the padding (in px) between the `nodes`.

  • thickness

    Sets the thickness (in px) of the `nodes`.

  • x

    The normalized horizontal position of the node.

  • xsrc

    Sets the source reference on for x .

  • y

    The normalized vertical position of the node.

  • ysrc

    Sets the source reference on for y .


Pablo Rodríguez González <>


This software is Copyright (c) 2019 by Pablo Rodríguez González.

This is free software, licensed under:

  The MIT (X11) License