Chart::Plotly::Trace::Choroplethmapbox - GeoJSON features to be filled are set in `geojson` The data that describes the choropleth value-to-color mapping is set in `locations` and `z`.


version 0.041


 use Chart::Plotly;
 use Chart::Plotly::Plot;
 use JSON;
 use Chart::Plotly::Trace::Choroplethmapbox;
 # Example from
 my $trace1 = Chart::Plotly::Trace::Choroplethmapbox->new({'locations' => ['NY', 'MA', 'VT', ], 'geojson' => '', 'z' => [10, 20, 30, ], });
 my $plot = Chart::Plotly::Plot->new(
     traces => [$trace1, ],
     layout => 
         {'width' => 600, 'mapbox' => {'style' => 'open-street-map', 'center' => {'lon' => -74.22, 'lat' => 42.35, }, 'zoom' => 3.5, }, }


GeoJSON features to be filled are set in `geojson` The data that describes the choropleth value-to-color mapping is set in `locations` and `z`.

Screenshot of the above example:

Screenshot of the above example

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

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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.


Trace type.


  • autocolorscale

    Determines whether the colorscale is a default palette (`autocolorscale: true`) or the palette determined by `colorscale`. In case `colorscale` is unspecified or `autocolorscale` is true, the default palette will be chosen according to whether numbers in the `color` array are all positive, all negative or mixed.

  • below

    Determines if the choropleth polygons will be inserted before the layer with the specified ID. By default, choroplethmapbox traces are placed above the water layers. If set to '', the layer will be inserted above every existing layer.

  • coloraxis

    Sets a reference to a shared color axis. References to these shared color axes are *coloraxis*, *coloraxis2*, *coloraxis3*, etc. Settings for these shared color axes are set in the layout, under `layout.coloraxis`, `layout.coloraxis2`, etc. Note that multiple color scales can be linked to the same color axis.

  • colorbar

  • colorscale

    Sets the colorscale. The colorscale must be an array containing arrays mapping a normalized value to an rgb, rgba, hex, hsl, hsv, or named color string. At minimum, a mapping for the lowest (0) and highest (1) values are required. For example, `[[0, 'rgb(0,0,255)'], [1, 'rgb(255,0,0)']]`. To control the bounds of the colorscale in color space, use`zmin` and `zmax`. Alternatively, `colorscale` may be a palette name string of the following list: Greys,YlGnBu,Greens,YlOrRd,Bluered,RdBu,Reds,Blues,Picnic,Rainbow,Portland,Jet,Hot,Blackbody,Earth,Electric,Viridis,Cividis.

  • customdata

    Assigns extra data each datum. This may be useful when listening to hover, click and selection events. Note that, *scatter* traces also appends customdata items in the markers DOM elements

  • customdatasrc

    Sets the source reference on for customdata .

  • featureidkey

    Sets the key in GeoJSON features which is used as id to match the items included in the `locations` array. Support nested property, for example **.

  • geojson

    Sets the GeoJSON data associated with this trace. It can be set as a valid GeoJSON object or as a URL string. Note that we only accept GeoJSONs of type *FeatureCollection* or *Feature* with geometries of type *Polygon* or *MultiPolygon*.

  • hoverinfo

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

  • hoverinfosrc

    Sets the source reference on for hoverinfo .

  • 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. variable `properties` 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 .

  • hovertext

    Same as `text`.

  • hovertextsrc

    Sets the source reference on for hovertext .

  • ids

    Assigns id labels to each datum. These ids for object constancy of data points during animation. Should be an array of strings, not numbers or any other type.

  • idssrc

    Sets the source reference on for ids .

  • legendgroup

    Sets the legend group for this trace. Traces part of the same legend group hide/show at the same time when toggling legend items.

  • locations

    Sets which features found in *geojson* to plot using their feature `id` field.

  • locationssrc

    Sets the source reference on for locations .

  • marker

  • pmeta

    Assigns extra meta information associated with this trace that can be used in various text attributes. Attributes such as trace `name`, graph, axis and colorbar `title.text`, annotation `text` `rangeselector`, `updatemenues` and `sliders` `label` text all support `meta`. To access the trace `meta` values in an attribute in the same trace, simply use `%{meta[i]}` where `i` is the index or key of the `meta` item in question. To access trace `meta` in layout attributes, use `%{data[n[.meta[i]}` where `i` is the index or key of the `meta` and `n` is the trace index.

  • metasrc

    Sets the source reference on for meta .

  • name

    Sets the trace name. The trace name appear as the legend item and on hover.

  • reversescale

    Reverses the color mapping if true. If true, `zmin` will correspond to the last color in the array and `zmax` will correspond to the first color.

  • selected

  • selectedpoints

    Array containing integer indices of selected points. Has an effect only for traces that support selections. Note that an empty array means an empty selection where the `unselected` are turned on for all points, whereas, any other non-array values means no selection all where the `selected` and `unselected` styles have no effect.

  • showlegend

    Determines whether or not an item corresponding to this trace is shown in the legend.

  • showscale

    Determines whether or not a colorbar is displayed for this trace.

  • stream

  • subplot

    Sets a reference between this trace's data coordinates and a mapbox subplot. If *mapbox* (the default value), the data refer to `layout.mapbox`. If *mapbox2*, the data refer to `layout.mapbox2`, and so on.

  • text

    Sets the text elements associated with each location.

  • textsrc

    Sets the source reference on for text .

  • transforms

  • uid

    Assign an id to this trace, Use this to provide object constancy between traces during animations and transitions.

  • uirevision

    Controls persistence of some user-driven changes to the trace: `constraintrange` in `parcoords` traces, as well as some `editable: true` modifications such as `name` and `colorbar.title`. Defaults to `layout.uirevision`. Note that other user-driven trace attribute changes are controlled by `layout` attributes: `trace.visible` is controlled by `layout.legend.uirevision`, `selectedpoints` is controlled by `layout.selectionrevision`, and `colorbar.(x|y)` (accessible with `config: {editable: true}`) is controlled by `layout.editrevision`. Trace changes are tracked by `uid`, which only falls back on trace index if no `uid` is provided. So if your app can add/remove traces before the end of the `data` array, such that the same trace has a different index, you can still preserve user-driven changes if you give each trace a `uid` that stays with it as it moves.

  • unselected

  • visible

    Determines whether or not this trace is visible. If *legendonly*, the trace is not drawn, but can appear as a legend item (provided that the legend itself is visible).

  • z

    Sets the color values.

  • zauto

    Determines whether or not the color domain is computed with respect to the input data (here in `z`) or the bounds set in `zmin` and `zmax` Defaults to `false` when `zmin` and `zmax` are set by the user.

  • zmax

    Sets the upper bound of the color domain. Value should have the same units as in `z` and if set, `zmin` must be set as well.

  • zmid

    Sets the mid-point of the color domain by scaling `zmin` and/or `zmax` to be equidistant to this point. Value should have the same units as in `z`. Has no effect when `zauto` is `false`.

  • zmin

    Sets the lower bound of the color domain. Value should have the same units as in `z` and if set, `zmax` must be set as well.

  • zsrc

    Sets the source reference on for z .


Pablo Rodríguez González <>


This software is Copyright (c) 2020 by Pablo Rodríguez González.

This is free software, licensed under:

  The MIT (X11) License