This section documents API usage specific to this template, so for an introduction we suggest you refer to the generic API documentation instead.

Template data

There are three different formats in which you can supply data to this template. The most convenient for you to use likely depends on the source of your data, as described below.

1. Array of arrays, and a bindings object

You can supply arrays of arrays to opts.data, which might look like:

{
    data: {
        data: [
            [ "DataColumn1Value1", "DataColumn2Value1",
            [ "DataColumn1Value2", "DataColumn2Value2",
            [ "DataColumn1Value3", "DataColumn2Value3",
            ...
        ]
    }
}

where each array of arrays represents the rows in a data sheet.

To tell the API how the values from each column should be associated with the keys that the template is expecting, you must also supply an object attached to opts.bindings. (The meanings of the keys in the bindings object are documented below.) The minimal bindings you can supply for this template are as shown in this example:

{
    template: "@flourish/hierarchy",
    version: "13",
    bindings: {
        data: {
            
        }
    },
    data: {
        data: [
            [ "DataColumn1Value1", "DataColumn2Value1",
            [ "DataColumn1Value2", "DataColumn2Value2",
            [ "DataColumn1Value3", "DataColumn2Value3",
            ...
        ]
    }
}

All possible bindings that you can supply are shown in this example:

{
    template: "@flourish/hierarchy",
    version: "13",
    bindings: {
        data: {
            nest_columns: [0, 1, ...], // index(es) of column(s) in your data
            size_columns: [2, 3, ...], // index(es) of column(s) in your data
            filter: 4, // index of a column in your data
            popup_metadata: [5, 6, ...], // index(es) of column(s) in your data
        }
    },
    data: {
        data: [
            [ "DataColumn1Value1", "DataColumn2Value1",
            [ "DataColumn1Value2", "DataColumn2Value2",
            [ "DataColumn1Value3", "DataColumn2Value3",
            ...
        ]
    }
}

2. Array of objects with arbitrary keys, and a bindings object

This format is most likely useful when you have data from an external source, such as CSV data loaded from d3-dsv. You should supply this attached to the opts.data, which might look like:

{
        data: [
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            ...
        ]
    }

... but with the keys being the column headers from your source data instead. You must also supply an object attached to opts.bindings. The minimal bindings you can supply for this template are as shown in this example:

{
    template: "@flourish/hierarchy",
    version: "13",
    bindings: {
        data: {
            
        }
    },
    data: {
        data: [
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            ...
        ]
    }
}

All possible bindings that you can supply are shown in this example:

{
    template: "@flourish/hierarchy",
    version: "13",
    bindings: {
        data: {
            nest_columns: ["DataHeader1", "DataHeader2", ...],
            size_columns: ["DataHeader3", "DataHeader4", ...],
            filter: "DataHeader5",
            popup_metadata: ["DataHeader6", "DataHeader7", ...],
        }
    },
    data: {
        data: [
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            ...
        ]
    }
}

(As before, the keys containing "Header" would be replaced by column names from your data source.)

3. Array of objects with template-defined keys

There is an alternative format you can use, which is likely to be easier to use if your data is not from a spreadsheet source. With this alternative format you supply your data to the template as an array of objects, attached to opts.data, where the keys must be those used by the template, as documented below. In this case there is no need to supply a bindings object, since the key names are already those expected by the template. The required properties in the data object are as follows (scroll down for a description of what each property is):

{
    template: "@flourish/hierarchy",
    version: "13",
    data: {
    data: [
        {
            nest_columns: [...],
            size_columns: [...],
            popup_metadata: [...]
        },
        ...
    ]
},
    ...
}

And the full list of all possible properties is as follows:

{
    template: "@flourish/hierarchy",
    version: "13",
    data: {
    data: [
        {
            nest_columns: [...],
            size_columns: [...],
            filter: ...,
            popup_metadata: [...]
        },
        ...
    ]
},
    ...
}

Meanings of the template data keys:

• data.nest_columns: Choose categorical columns to nest by (e.g. C,B,A). The data is nested in the same order as the chosen columns. For example if the chosen columns are 'C,B' the data is first grouped by Lead Studio and then by Genre.
• data.size_columns: (Optional) Choose numeric columns to size by (e.g. Worldwide Gross). If more than 1 is chosen, a dropdown will appear in the visualisation which lets the user choose. Rows with negative values are excluded.
• data.filter: (Optional) Choose a categorical column to filter by. A dropdown will appear in the visualisation.
• data.popup_metadata: Makes additional columns (text, emoji, image URLs, etc) available in custom popups

Template settings

Options for opts.state.

Hierarchy

hierarchy_layout string

Layout. Choose between a treemap, packed circles, radial sunburst, stacked bar or radial tree chart

num_of_visible_levels number

Visible levels. How many hierarchy levels are visible at once?

sort_by string

Sort by. Sort cells by value or by name. (In Circles layout, the circles are placed in the specified order following an approximately spiral path.)

aggregation_type string

Size cells by.

auto_set_height boolean

Auto set height. Automatically determine container height. For example circle packing, sunburst and radial tree will fill width and treemap will use the specified aspect ratio.

Treemap

treemap_aspect_ratio_normal number

Aspect (desktop). Height of treemap, as % of width

treemap_aspect_ratio_narrow number

Aspect (mobile). Height of treemap, as % of width

responsive_narrow_breakpoint number

Breakpoint. The width at which mobile mode ends and desktop begins

treemap_type string

Layout mode.

treemap_ratio number

Target. The target ratio between width and height, where 1 is sqaure and a large number is a tall or wide rectangle

cellPadding string

Padding. Add padding between hierarchy levels

Sunburst

sunburst_show_zoomed_node_in_center boolean

Show zoomed node in center. Show zoomed node as a circle in the center of the sunburst chart. (If not zoomed, the space is left blank.)

sunburst_inner_radius number

Inner radius. As a % of max radius

sunburst_outer_radius number

Outer radius. As a % of max radius

sunburst_depth_fade number

Depth fade. How quickly the segments fade with hierachical depth. (Use 1 for no fade.)

sunburst_labelling string

Labels. How the labels should be oriented

Bar

bar_min_bar_thickness number

Minimum bar thickness. Minimum bar thickness in pixels. This also determines bar height if 'Auto set height' is true.

bar_max_bar_thickness number

Maximum bar thickness. Maximum bar thickness in pixels. Applies when 'Auto set height' is false.

bar_bar_padding number

Bar padding. Distance between bars in pixels

bar_max_value number

Maximum value. The maximum value represented by bar length (leave blank for auto-scaling)

bar_axis_label_space number

Space for axis labels. Space available for axis labels (relative to root font size)

bar_value_label_space number

Space for value labels. Space available for value labels (relative to root font size)

bar_show_value_label boolean

Show value label.

Radial Tree

radial_tree_outer_radius number

Outer radius (%). Radius of outer nodes (as a percent of the container size)

radial_tree_bar_length number

Bar length (%). Bar length (as a percent of the container size)

radial_tree_bar_width number

Bar width (pixels). Bar width in pixels

radial_tree_rotation number

Rotation (degrees). Rotates the whole tree

radial_tree_show_values boolean

Show value labels.

Labels

min_label_size number

Minimum label size. Minimum label size (relative to root font size)

max_label_size number

Maximum label size. Maximum label size (relative to root font size)

label_padding number

Label padding. Padding (relative to root font size) between label and border

multi_line_labels boolean

Multi line labels. Display long labels across multiple lines where possible. Currently supported in treemap and circle packing.

label_case string

Label case. Determines whether labels are lower or upper case. Items at the top level of the hierarchy can have a different case to the remaining items.

label_weight string

Label weight. Determines the font weight (normal or bold) of labels. Items at the top level of the hierarchy can have a different weight to the remaining items.

value_labels_bold boolean

Bold value labels.

Colors

color.scale_type string

Scale type.

color.categorical_palette colors

Palette.

color.categorical_extend boolean

Extend. Automatically generate additional colours when needed to avoid the palette colours being used more than once.

color.categorical_custom_palette text

Custom overrides. Type the name of the entity whose colour you want to set, a colon and then a colour (using a name, hex-code or rgb declaration). Multiple colours can be set using multiple lines. For example:

---

Party 1: red
Party 2: #4455AA
Party 3: rgb(30,168,26)

color.numeric_type string

Scale type.

color.binning boolean

In linear mode, the color scale will run as a smooth gradient between 2 colors. In binned mode, the gradient will be divided in smaller blocks.

color.bin_mode string

Binning mode.

color.bin_count number

Number of bins.

color.bin_thresholds string

Custom thresholds. Write your custom thresholds, separated by a ";" For example 5;10;15

color.sequential_palette string

Palette.

color.sequential_reverse boolean

Reverse.

color.sequential_custom_min color

Minimum color.

color.sequential_custom_max color

Maximum color.

color.sequential_color_space string

Color space.

color.sequential_custom_domain boolean

Domain.

color.sequential_domain_min number

Min.

color.sequential_domain_max number

Max.

color.diverging_palette string

Palette.

color.diverging_reverse boolean

Reverse.

color.diverging_custom_min color

Minimum color.

color.diverging_custom_mid color

Midpoint color.

color.diverging_custom_max color

Maximum color.

color.diverging_color_space string

Color space.

color.diverging_custom_domain boolean

Domain.

color.diverging_domain_min number

Min.

color.diverging_domain_mid number

Mid.

color.diverging_domain_max number

Max.

stroke_color color

Stroke color.

zoom_out_button_color color

Button colour.

zoom_out_arrow_color color

Arrow colour.

label_color color

Label color.

axis_label_color color

Axis color.

radial_tree_colored_links boolean

Coloured links. Use coloured links

radial_tree_link_color color

Radial tree link colour.

Popups and panels

popup.mode string

popup.popup_is_custom boolean

Popup content.

popup.show_popup_styles boolean

Show popup styles.

popup.popup_custom_header string

Popup custom header. The text to appear in the popup. You can use {{column_name}} to add a value from your data. It must be in a selected column, but you can add columns to “Metadata” if you just want to include them for use in the popup. You can also use {{NAME}} to include the name of the current item, {{VALUE}} to include the value of the current item and {{SIZEBY}} to include the name of the column chosen to size items. Advanced users can include HTML to apply layouts, formatting, images, etc. You can also hide content based on a column name being empty using {{# if column_name}}Text to display when column_name is not empty{{/if}}. For example: {{Country}} {{#if Capital}}(Capital: {{Capital}}){{/if}}

popup.popup_custom_main text

Popup custom main content. The text to appear in the popup. You can use {{column_name}} to add a value from your data. It must be in a selected column, but you can add columns to “Metadata” if you just want to include them for use in the popup. You can also use {{NAME}} to include the name of the current item, {{VALUE}} to include the value of the current item and {{SIZEBY}} to include the name of the column chosen to size items. Advanced users can include HTML to apply layouts, formatting, images, etc. You can also hide content based on a column name being empty using {{# if column_name}}Text to display when column_name is not empty{{/if}}. For example: {{Country}} {{#if Capital}}(Capital: {{Capital}}){{/if}}

popup.popup_width number

Max width. In rems, multiples of base font size. Leave blank to let the width adjust based on the contents.

popup.popup_font_size number

Text size.

popup.popup_text_color color

Text color.

popup.popup_align string

Align.

popup.popup_background color

Fill color.

popup.popup_background_opacity number

Fill opacity.

popup.popup_padding number

Padding.

popup.popup_radius number

Radius. Corner radius of popup

popup.popup_header_type string

Header style.

popup.popup_header_background color

Background.

popup.popup_header_text_color color

Text.

popup.popup_list_type string

List type.

popup.popup_list_label_weight string

Label weight.

popup.popup_list_separator string

List separator.

popup.popup_shadow boolean

Shadow.

popup.popup_pointer boolean

Pointer.

popup.panel_position string

popup.panel_open_duration number

Open duration.

popup.panel_side_fixed boolean

Always show.

popup.panel_side_default_content text

Placeholder content.

popup.panel_is_custom boolean

Panel content.

popup.show_panel_styles boolean

Show panel styles.

popup.panel_custom_header string

Panel custom header. The text to appear in the panel. You can use {{column_name}} to add a value from your data. It must be in a selected column, but you can add columns to “Metadata” if you just want to include them for use in the panel. You can also use {{NAME}} to include the name of the current item, {{VALUE}} to include the value of the current item and {{SIZEBY}} to include the name of the column chosen to size items. Advanced users can include HTML to apply layouts, formatting, images, etc. You can also hide content based on a column name being empty using {{# if column_name}}Text to display when column_name is not empty{{/if}}. For example: {{Country}} {{#if Capital}}(Capital: {{Capital}}){{/if}}

popup.panel_custom_main text

Panel custom main content. The text to appear in the panel. You can use {{column_name}} to add a value from your data. It must be in a selected column, but you can add columns to “Metadata” if you just want to include them for use in the panel. You can also use {{NAME}} to include the name of the current item, {{VALUE}} to include the value of the current item and {{SIZEBY}} to include the name of the column chosen to size items. Advanced users can include HTML to apply layouts, formatting, images, etc. You can also hide content based on a column name being empty using {{# if column_name}}Text to display when column_name is not empty{{/if}}. For example: {{Country}} {{#if Capital}}(Capital: {{Capital}}){{/if}}

popup.panel_width_overlay number

Width (%).

popup.panel_height_overlay number

Height (%).

popup.panel_width_side number

Width (%).

popup.panel_height_side number

Height (%).

popup.panel_max_width number

Max width (px).

popup.panel_max_height number

Max height (px).

popup.panel_vertical_position string

Vertical position. Choosing "Click position" is especially useful when your visualisation is really tall, this will make sure the panel content is always on top of the element you've clicked on

popup.panel_text_color color

Text color.

popup.panel_font_size number

Text size.

popup.panel_align string

Alignment.

popup.panel_background color

Fill color.

popup.panel_background_opacity number

Fill opacity.

popup.panel_padding number

Padding.

popup.panel_radius number

Radius. Corner radius of panel

popup.panel_list_type string

List type.

popup.panel_list_label_weight string

Label weight.

popup.panel_list_separator string

List separator.

popup.panel_shadow boolean

Shadow.

popup_active_levels string

Levels on which popup is active. Specify which hierarchy levels popup is active on

Controls

controls_padding number

Padding.

filter_control_visibility string

Show filter control. Sets whether the Filter control is always visible, only visible when editing or never visible.

filter_include_all boolean

Include "All" in filter.

filter_all_label string

Filter All label.

filter_control.control_type string

Control type. Choose between a dropdown, buttons or a time slider.

filter_control.control_styles boolean

Adv..

filter_control.button_group boolean

Grouped.

filter_control.button_group_width_mode string

Button group width.

filter_control.button_group_width_fixed number

Width.

filter_control.dropdown_width_mode string

Dropdown width.

filter_control.dropdown_width_fixed number

Width.

filter_control.slider_background_color color

Background.

filter_control.slider_font_color color

Text.

filter_control.slider_handle_color color

Handle.

filter_control.slider_width number

Width.

filter_control.slider_margin number

Label width.

filter_control.slider_handle_height number

Height.

filter_control.slider_track_height number

Track height.

filter_control.slider_play_button boolean

Play button.

filter_control.slider_loop boolean

Loop.

filter_control.slider_step_time number

Time between steps. Measured in seconds, positive values move the slider left to right, negative values move the slider right to left.

filter_control.slider_restart_pause number

Pause before loop. Measured in seconds and in addition to the regular step time displayed above.

filter_control.sort string

Sorting.

filter_control.sort_temporal_format string

Date/time format in data. The date/time format in your data sheet. Used only to sort the data, if required. If your format isn’t in the list, you can enter a custom format using d3-time-format syntax. See npmjs.com/package/d3-time-format for details.

size_by_control_visibility string

Show size by control. Sets whether the Size by control is always visible, only visible when editing or never visible.

size_by_control.control_type string

Control type. Choose between a dropdown, buttons or a time slider.

size_by_control.control_styles boolean

Adv..

size_by_control.button_group boolean

Grouped.

size_by_control.button_group_width_mode string

Button group width.

size_by_control.button_group_width_fixed number

Width.

size_by_control.dropdown_width_mode string

Dropdown width.

size_by_control.dropdown_width_fixed number

Width.

size_by_control.slider_background_color color

Background.

size_by_control.slider_font_color color

Text.

size_by_control.slider_handle_color color

Handle.

size_by_control.slider_width number

Width.

size_by_control.slider_margin number

Label width.

size_by_control.slider_handle_height number

Height.

size_by_control.slider_track_height number

Track height.

size_by_control.slider_play_button boolean

Play button.

size_by_control.slider_loop boolean

Loop.

size_by_control.slider_step_time number

Time between steps. Measured in seconds, positive values move the slider left to right, negative values move the slider right to left.

size_by_control.slider_restart_pause number

Pause before loop. Measured in seconds and in addition to the regular step time displayed above.

size_by_control.sort string

Sorting.

size_by_control.sort_temporal_format string

Date/time format in data. The date/time format in your data sheet. Used only to sort the data, if required. If your format isn’t in the list, you can enter a custom format using d3-time-format syntax. See npmjs.com/package/d3-time-format for details.

controls_style.font_size number

Text size.

controls_style.font_weight string

Text weight.

controls_style.padding number

Height. Space below and above controls text

dropdown_style.background color

Background.

dropdown_style.font_color color

Text color.

dropdown_style.border_styles_advanced boolean

Dropdown border styles.

dropdown_style.border_style string

Border style. Show border on all sides, or only at the bottom

dropdown_style.border_width number

Border width.

dropdown_style.border_color color

Color.

dropdown_style.border_transparency number

Transparency.

dropdown_style.border_radius number

Radius.

button_style.background color

Background.

button_style.background_selected color

Selected.

button_style.background_hover color

Mouse over.

button_style.font_color color

Text color.

button_style.font_color_selected color

Selected.

button_style.font_color_hover color

Mouse over.

button_style.button_styles_advanced boolean

Button border styles.

button_style.border_width number

Border width.

button_style.border_color color

Color.

button_style.border_transparency number

Transparency.

button_style.border_radius number

Radius.

ascend_button_visibility string

"Go up a level" button visibility. Sets whether the "Go up a level" button is always visible, only visible when editing or never visible.

Animations

animation_duration number

Duration. In seconds

Number formatting

localization.input_decimal_separator string

Decimal separator in data sheet. Used for interpreting your data. Only change if data is not displaying on the chart as expected.

localization.output_separators string

Number format to display. How the numbers should appear on chart labels

number_formatter.prefix string

Prefix. Text to place in front of number

number_formatter.suffix string

Suffix. Text to place after number

number_formatter.n_dec number

Decimal places. Use negative integers to round to positive powers of ten (eg -2 rounds to the nearest 100)

number_formatter.advanced boolean

Advanced.

number_formatter.negative_sign string

Styling of negative numbers.

number_formatter.strip_zeros boolean

Remove trailing zeros.

number_formatter.strip_separator boolean

Hide thousands separator below 10,000. Turn off if you want four-digit numbers to include a separator, e.g. “1,234” rather than “1234”.

number_formatter.transform_labels boolean

Multiply/divide values.

number_formatter.transform string

number_formatter.multiply_divide_constant number

number_formatter.exponentiate_constant number

Layout

Layout

layout.body_font font

Main font. This font will apply to the whole graphic by default, but you can optionally change the font for the title, subtitle, footer, etc in the Header and Footer settings panels.

layout.font_color color

Text color. This color will apply to the whole graphic by default, but you can optionally change the color for individual text elements, in other settings panels.

layout.background_color_enabled boolean

Color.

layout.background_image_enabled boolean

Image.

layout.background_color color

Background color.

layout.background_image_src url

Image URL.

layout.background_image_size string

Size.

layout.background_image_position string

Position.

layout.max_width_target string

Maximum width. Apply a maximum width to just the main graphic or everything (main graphic plus header, footer, etc)

layout.max_width number

Maximum width. Leave blank to stretch to container width

layout.max_width_align string

Align.

layout.layout_order string

Layout order.

layout.space_between_sections string

Space between sections.

layout.space_between_sections_custom number

Custom.

layout.margin_top number

Top.

layout.margin_right number

Right.

layout.margin_bottom number

Bottom.

layout.margin_left number

Left.

layout.border.enabled boolean

Show borders around visualisation.

layout.border.top.width number

Top.

layout.border.top.style string

Style.

layout.border.top.color color

Color.

layout.border.right.width number

Right.

layout.border.right.style string

Style.

layout.border.right.color color

Color.

layout.border.bottom.width number

Bottom.

layout.border.bottom.style string

Style.

layout.border.bottom.color color

Color.

layout.border.left.width number

Left.

layout.border.left.style string

Style.

layout.border.left.color color

Color.

Header

layout.header_align string

Alignment.

layout.title string

layout.title_styling boolean

Change title styles.

layout.title_font font

Title Font.

layout.title_size string

Size.

layout.title_size_custom number

Custom. Specify a custom responsive font size. Best results will be with values between 1.2 and 3

layout.title_weight string

Weight.

layout.title_color color

Color.

layout.title_line_height number

Line height.

layout.title_space_above string

Space above.

layout.title_space_above_custom number

Custom.

layout.subtitle string

layout.subtitle_styling boolean

Change subtitle styles.

layout.subtitle_font font

Subtitle Font.

layout.subtitle_size string

Size.

layout.subtitle_size_custom number

Custom. Specify a custom responsive font size. Best results will be with values between 1.2 and 3

layout.subtitle_weight string

Weight.

layout.subtitle_color color

Color.

layout.subtitle_line_height number

Line height.

layout.subtitle_space_above string

Space above.

layout.subtitle_space_above_custom number

Custom.

layout.header_text string

layout.header_text_styling boolean

Styling.

layout.header_text_size string

Size.

layout.header_text_size_custom number

Custom. Specify a custom responsive font size. Best results will be with values between 1.2 and 3

layout.header_text_weight string

Weight.

layout.header_text_color color

Color.

layout.header_text_line_height number

Line height.

layout.header_text_space_above string

Space above.

layout.header_text_space_above_custom number

Custom.

layout.header_border string

layout.header_border_width number

Width.

layout.header_border_color color

Color.

layout.header_border_style string

Style.

layout.header_border_space number

Space. Space between border and header text

layout.header_logo_enabled boolean

layout.header_logo_src url

URL.

layout.header_logo_height number

Height.

layout.header_logo_align string

Align. Align logo inside header or outer visualisation container

layout.header_logo_position_inside string

Position.

layout.header_logo_position_outside string

Position.

layout.header_logo_margin_top number

Top.

layout.header_logo_margin_right number

Right.

layout.header_logo_margin_bottom number

Bottom.

layout.header_logo_margin_left number

Left.

Footer

layout.footer_align string

Alignment.

layout.footer_text_size number

Size.

layout.footer_text_color color

Color.

layout.footer_styling boolean

Advanced footer styles.

layout.footer_font font

Font.

layout.source_name string

Source name.

layout.source_url string

Source url.

layout.multiple_sources boolean

Multiple sources.

layout.source_name_2 string

Source name.

layout.source_url_2 string

Source url.

layout.source_name_3 string

Source name.

layout.source_url_3 string

Source url.

layout.source_label string

Source label.

layout.footer_note string

Note.

layout.footer_note_secondary string

Note (secondary). The secondary note is placed below the source and primary note

layout.footer_logo_enabled boolean

Image.

layout.footer_logo_src url

Image.

layout.footer_logo_src_light hidden

Image (light version). If provided this version will be used whenever the background colour is dark

layout.footer_logo_link_url string

Link.

layout.footer_logo_height number

Height.

layout.footer_logo_margin number

Margin.

layout.footer_logo_order string

Position.

layout.footer_align_vertical string

V. align.

layout.footer_border string

layout.footer_border_width number

Width.

layout.footer_border_color color

Color.

layout.footer_border_style string

Style.

layout.footer_border_space number

Space. Space between border and footer text

Accessibility

layout.screenreader_hide_primary boolean

Screenreader mode for main visual container. Whether the main visual container is visible to screenreaders. (Text in the header and footer are always available to screenreaders.)

layout.screenreader_text_primary text

Screenreader description. A text alternative to the visual content that will only be visible to screenreaders, e.g. “The line chart shows China consistently higher than the other countries since 1990”. Do no replicate your title, since that will also be read by screenreaders.