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/template-bubble-chart",
    version: "1",
    bindings: {
        data: {
            label: 0, // index of a column in your data
        }
    },
    data: {
        data: [
            [ "DataColumn1Value1", "DataColumn2Value1",
            [ "DataColumn1Value2", "DataColumn2Value2",
            [ "DataColumn1Value3", "DataColumn2Value3",
            ...
        ]
    }
}

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

{
    template: "@flourish/template-bubble-chart",
    version: "1",
    bindings: {
        data: {
            label: 0, // index of a column in your data
            color: 1, // index of a column in your data
            size: 2, // index of a column in your data
            axis_values: 3, // index of a column in your data
            image: 4, // index of a column in your data
            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/template-bubble-chart",
    version: "1",
    bindings: {
        data: {
            label: "DataHeader1",
        }
    },
    data: {
        data: [
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            { "DataHeader1": ..., "DataHeader2": ..., ... },
            ...
        ]
    }
}

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

{
    template: "@flourish/template-bubble-chart",
    version: "1",
    bindings: {
        data: {
            label: "DataHeader1",
            color: "DataHeader2",
            size: "DataHeader3",
            axis_values: "DataHeader4",
            image: "DataHeader5",
            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/template-bubble-chart",
    version: "1",
    data: {
    data: [
        {
            label: ...,
            metadata: [...]
        },
        ...
    ]
},
    ...
}

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

{
    template: "@flourish/template-bubble-chart",
    version: "1",
    data: {
    data: [
        {
            label: ...,
            color: ...,
            size: ...,
            axis_values: ...,
            image: ...,
            metadata: [...]
        },
        ...
    ]
},
    ...
}

Meanings of the template data keys:

• data.label: label
• data.color: Used to color the bubbles
• data.size: Value for bubble size
• data.axis_values: Values used to plot the bubbles when the bubbles are aligned on an axis
• data.image: Images for bubbles
• data.metadata: Makes additional columns (text, emoji, image URLs, etc) available in custom popups

Template settings

Options for opts.state.

Bubble styles

bubble_alignment string

Alignment of bubbles.

margin_bubbles number

Space between bubbles.

animation_duration number

Animation duration. in seconds

Chart setup

height_mode string

Height mode. In “Fill space” mode the graphic will fill the container (which by default will be the the standard Flourish responsive chart size). In “Aspect ratio” mode you set the aspect ratio of the plot and the container will be updated to accommodate it (not supported when embedded in a simple fixed-height iframe).

aspect_ratio number

Aspect (desktop). Height of the plot as a proportion of its width, between 0 and 1.

aspect_ratio_mobile number

Aspect (mobile). Height of the plot as a proportion of its width, between 0 and 1.

aspect_ratio_breakpoint number

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

Colors

circle_background_color color

Default color. If the bubbles are not colored by category, this color will be used.

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". Bins are created between the domain minimum and the first threshold, between each threshold and between the final threshold and the domain maximum. Therefore for the example "5;10;15" four bins are created. (The domain is the minimum and maximum values of your data.)

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.

Images

circle_background_border number

Border.

image_opacity number

Opacity.

Labels

label_font_weight string

Weight.

label_font_style string

Style.

label_font_case string

Case.

label_font_color color

Color.

label_shadow boolean

Shadow.

Highlights

enable_highlighting boolean

Enable highlighting.

selected_bubbles text

Highlight bubbles. To highlight bubbles, write the name of each bubble on a new line. You can also create a story and highlight/unhighlight by clicking.

opacity_highlighted number

Opacity of highlighted bubble.

opacity_not_highlighted number

Opacity of all other bubbles.

highlight_pictures boolean

Show pictures only on highlighted bubbles.

Legends

legend_container.alignment string

Alignment.

legend_container.orientation string

Orientation.

legend_container.title_weight string

Title weight.

legend_container.text_weight string

Text weight.

legend_container.text_color color

Color.

legend_container.text_size number

Size.

show_legend_axis boolean

axis_legend_title_mode string

Title mode.

axis_legend_title string

Title.

legend_categorical.show_legend boolean

legend_categorical.title_mode string

Title mode.

legend_categorical.title string

Title.

legend_categorical.swatch_width number

Width.

legend_categorical.swatch_height number

Height.

legend_categorical.swatch_radius number

Roundness. The radius of the corners of the swatch (in pixels)

legend_categorical.legend_items_padding number

Padding. Padding between legend items (in rems)

legend_categorical.order_override text

Custom order override. Manually specify the order of legend entries (one entry per line)

legend_categorical.icon_height number

Height. Height of icon (relative to the base font size)

legend_categorical.icon_color color

Color. Fallback color (icon color if not determined by template)

legend_categorical.max_width number

Max width.

legend_categorical.orientation string

Orientation.

legend_size.show_legend boolean

legend_size.title_mode string

Title mode.

legend_size.title string

Title.

legend_size.shape_fill color

Shape fill.

legend_size.shape_stroke color

Shape stroke. Hint: set to same value as fill for no stroke

legend_size.clip_height number

Max height. Maximum height of shape (relative to root font size)

legend_size.small_symbol_size number

Small/large proportion. Proportion of the small symbol's value compared to the big symbol's value. 0.5 means it's half the value of the big symbol.

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 html

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. 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 html

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. 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 html

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 popup. 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 html

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 popup. 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.

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

size_by_format.prefix string

Prefix. Text to place in front of number

size_by_format.suffix string

Suffix. Text to place after number

size_by_format.n_dec number

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

size_by_format.advanced boolean

Advanced.

size_by_format.negative_sign string

Styling of negative numbers.

size_by_format.strip_zeros boolean

Remove trailing zeros.

size_by_format.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”.

size_by_format.transform_labels boolean

Multiply/divide values.

size_by_format.transform string

size_by_format.multiply_divide_constant number

size_by_format.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.

layout.read_direction string

Read direction. This will change the reading direction of the main text elements on the page. Its not possible to adjust this on all elements such as axes. Note that when direction is set to "right to left" any alignment icons will be reversed.

Header

layout.header_align string

Alignment.

layout.title html

layout.title_styling boolean

Styling.

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 html

layout.subtitle_styling boolean

Styling.

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 html

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

Image.

layout.header_logo_alt string

Alt text.

layout.header_logo_link_url string

Link.

layout.header_logo_height number

Height.

layout.header_logo_align string

Align. Align logo inside either the header or the main 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.footer_text_weight string

Weight.

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_alt string

Alt text.

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 not replicate your title, since that will also be read by screenreaders.

layout.screenreader_label string

Screenreader label. A short text label given to the main Flourish embed wrapper to provide an accessible name that is only visible to screenreaders. Added in the form of an "aria-label".