How to use this template
What’s it for?
Heatmaps are great for revealing patterns in a variable across one dimension (like the famous Climate Stripes visualization or two (a more traditional “grid” heatmap).
2D heatmaps are often used for comparing distributions across multiple categories, places or time periods, but they can also be used for visualizing correlations across two numeric axes – like a scatter plot but with the data points grouped into ”bins”.
How to get started
Upload a CSV or Excel file with one column to shade by (this would typically be a numeric column) plus one or two columns of categories or numbers for the axes. Dates are treated as categories so if you have time in your data sheet be sure that each row represents the same time interval!
Data for a simple 1D heatmap might be something like this:
| Year | Temperature difference |
| 1880 | -0.19 |
| 1881 | -0.1 |
| 1882 | -0.11 |
| 1883 | -0.19 |
A 2D heatmap adds an extra dimension. For example:
| Year | Mean temperature | Region |
| 1884 | 9.87 | Southeast and Central England |
| 1885 | 8.8 | Southeast and Central England |
| 1886 | 9.72 | South England |
| 1887 | 8.61 | South England |
Not sure how to upload your data to Flourish? See our handy guide
Instructions
Once you've uploaded your data and selected your columns, be sure to select whether each dimension is categorical or numerical in the "Heatmap" settings panel.
Credits
Example data shows annual mean temperature data for UK regions, from the Met Office National Climate Information Centre.
API information
This section documents API usage specific to this template, so for an introduction we suggest you refer to the generic API documentation instead.
template: @flourish/heatmap
version: 4
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/heatmap",
version: "4",
bindings: {
data: {
}
},
data: {
data: [
[ "DataColumn1Value1", "DataColumn2Value1",
[ "DataColumn1Value2", "DataColumn2Value2",
[ "DataColumn1Value3", "DataColumn2Value3",
...
]
}
}
All possible bindings that you can supply are shown in this example:
{
template: "@flourish/heatmap",
version: "4",
bindings: {
data: {
x: 0, // index of a column in your data
y: 1, // index of a column in your data
value: 2, // index of a column in your data
filter: 3, // index of a column in your data
metadata: [4, 5, ...], // 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/heatmap",
version: "4",
bindings: {
data: {
}
},
data: {
data: [
{ "DataHeader1": ..., "DataHeader2": ..., ... },
{ "DataHeader1": ..., "DataHeader2": ..., ... },
{ "DataHeader1": ..., "DataHeader2": ..., ... },
...
]
}
}
All possible bindings that you can supply are shown in this example:
{
template: "@flourish/heatmap",
version: "4",
bindings: {
data: {
x: "DataHeader1",
y: "DataHeader2",
value: "DataHeader3",
filter: "DataHeader4",
metadata: ["DataHeader5", "DataHeader6", ...],
}
},
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/heatmap",
version: "4",
data: {
data: [
{
metadata: [...]
},
...
]
},
...
}
And the full list of all possible properties is as follows:
{
template: "@flourish/heatmap",
version: "4",
data: {
data: [
{
x: ...,
y: ...,
value: ...,
filter: ...,
metadata: [...]
},
...
]
},
...
}
Meanings of the template data keys:
- data.x: x
- data.y: y
- data.value: value
- data.filter: filter
- data.metadata: One or more columns of information (text, <a href="https://help.flourish.studio/article/46-how-to-add-images-to-your-visualization"><b>image URLs</b></a>, <a href="https://help.flourish.studio/article/259-how-to-embed-charts-in-your-popups-or-panels"><b>embedded charts</b></a> etc.) to include in <a href="https://help.flourish.studio/article/69-how-to-add-custom-content-to-your-popups"><b>popups and panels</b></a>
Template settings
Options for opts.state.
Heatmap
x_axis_datatype string
Data type. Whether the data bound to the X (horizontal) axis is categorical or numerical Allowed values:
x_axis_binning string
Binning mode. Allowed values:
x_axis_bin_width number
Bin width. The numeric range of each bin – for example, a bin width of 10 would give bins of 0–10, 10–20, etc. (assuming a bin center of 5)
x_axis_bin_center number
Bin center. The value you'd like as the center of a bin.
For example, a center of 5 and a bin width of 10 would give 0–10, 10–20, 20–30, etc.
A center of 0 would instead give -5–5, 5–10, 10–20, etc.
cell_x_margin number
Cell padding.
y_axis_datatype string
Data type. Whether the data bound to the Y (vertical) axis is categorical or numerical Allowed values:
y_axis_binning string
Binning mode. Allowed values:
y_axis_bin_width number
Bin width. The numeric range of each bin – for example, a bin width of 10 would give bins of 0–10, 10–20, etc. (assuming a bin center of 5).
y_axis_bin_center number
Bin center. The value you'd like as the center of a bin.
For example, a center of 5 and a bin width of 10 would give 0–10, 10–20, 20–30, etc.
A center of 0 would instead give -5–5, 5–10, 10–20, etc.
cell_y_margin number
Cell padding.
height_mode string
Height mode. Cell aspect and cell height modes only work when embedding responsively with a script embed Allowed values:
cell_height number
Height. Aspect ratio and fixed modes only work when embedding responsively with a script embed
cell_aspect number
Aspect. Aspect ratio (width/height) of each cell
Colors
scale_type string
Scale type. Allowed values:
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. Enter the label name for which you wish to set the color, followed by a colon and the desired color value.
Colors can be set using Hex, RGB, color names or RGBA, if you want to set the opacity. Multiple colors 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. Allowed values:
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. Allowed values:
color.bin_mode string
Binning mode. Allowed values:
color.bin_count number
Number of bins.
color.bin_thresholds string
Custom thresholds. Enter your desired thresholds, separating them with a ";". For instance, "5;10;15".
Bins form as follows:
For "5;10;15", you'll get four bins based on your data's range.
color.sequential_palette string
Palette. Allowed values:
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. Allowed values:
color.sequential_custom_domain boolean
Domain. Allowed values:
color.sequential_domain_min number
Min.
color.sequential_domain_max number
Max.
color.diverging_palette string
Palette. Allowed values:
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. Allowed values:
color.diverging_custom_domain boolean
Domain. Allowed values:
color.diverging_domain_min number
Min.
color.diverging_domain_mid number
Mid.
color.diverging_domain_max number
Max.
Legend
legend_continuous.show_legend boolean
Allowed values:
- true (Enabled)
- false (Disabled)
legend_continuous.title_mode string
Title mode. Allowed values:
legend_continuous.title string
Title.
legend_continuous.color_band_width number
Width.
legend_continuous.color_band_height number
Height.
legend_continuous.color_band_radius number
Roundness. The radius of the corners of the color band (in pixels)
legend_continuous.binned_label_mode string
Binned label mode. Allowed values:
legend_continuous.binned_label_custom string
Custom bin labels. List numeric values, separated by semi-colons.
legend_continuous.legend_min number
Legend min.
legend_continuous.additional_min_label string
Custom min label.
legend_continuous.legend_max number
Legend max.
legend_continuous.additional_max_label string
Custom max label.
legend_categorical.show_legend boolean
Legend mode. A legend will not show with a single entry Allowed values:
legend_categorical.title_mode string
Title mode. Allowed values:
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.swatch_outline boolean
Outline. An optional outline for the swatch in the legend
legend_categorical.swatch_outline_color color
Color.
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 (in rems)
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. Allowed values:
legend_container.alignment string
Alignment. Allowed values:
legend_container.orientation string
Orientation. Allowed values:
legend_container.title_weight string
Title weight. Allowed values:
legend_container.text_weight string
Text weight. Allowed values:
legend_container.text_color color
Color.
legend_container.text_size number
Size. Max: 10
X axis
x.axis_position string
Position. Allowed values:
x.y_axis_position string
Y value. Vertical position of the X axis on the Y scale
x.numeric_scale_type string
Type. Allowed values:
x.linear_min number
Min.
x.linear_max number
Max.
x.log_min number
Min.
x.log_max number
Max.
x.datetime_min string
Min (date).
x.datetime_max string
Max (date).
x.flip boolean
Flip axis.
x.show_scale_settings boolean
Configure default min/max.
x.nice boolean
Round min/max. Enabling this option rounds the X axis start and end values to <a href="https://help.flourish.studio/article/224-how-to-avoid-gaps-between-axes-and-series>tidy numbers, such as 0, 50, 100 or whole years. Specified min and max values will override this feature. Allowed values:
x.zero_axis string
Include zero. Enable to extend the axis to include zero, even when data is all positive or all negative. This is ignored if you set specific min and max scale values. Allowed values:
x.title_mode string
Type. Allowed values:
x.title string
Text.
x.title_styling boolean
Styling.
x.title_weight string
Weight. Allowed values:
x.title_color color
Color.
x.title_size number
Size.
x.title_padding number
Padding.
x.tick_label_position string
Position. Allowed values:
x.tick_label_styling boolean
Styling.
x.tick_label_size number
Size.
x.tick_label_color color
Color.
x.tick_padding number
Padding.
x.tick_label_angle string
Angle. Allowed values:
x.tick_label_weight string
Weight. Allowed values:
x.tick_label_max_lines number
Max lines. Min: 1
x.tick_label_line_height number
Line height.
x.tick_label_space_mode string
Space mode. Allowed values:
x.tick_label_space number
Space.
x.tick_mode string
Mode. Sets the method for selecting tick values on the axis: Allowed values:
Auto automatically selects the ticks
Number allows you to choose the number of ticks to display.
Custom lets you select specific ticks to show.
Note: If the axis is categorical, Number mode is ignored.
x.tick_number number
Number. Approximate number of ticks or gridlines. The actual number will depend on the range of values, chart size, etc.
x.tick_custom text
One tick label per line. Specify the ticks to show, one per line. For dates, use the input format as specified in the datasheet.
You can also use {{FIRST}} and {{LAST}} to add ticks at the minimum and maximum of the axis. For example:
{{FIRST}}
25000
50000
75000
{{LAST}}
x.line_and_tick_color color
Line color.
x.line_and_tick_width number
Line width.
x.tick_length number
Tick length.
x.tick_side string
Tick side. Allowed values:
x.line_visible boolean
Axis line.
x.edge_padding number
Edge padding (%). Space between start/end of axis line and first/last category tick as a percentage of the spacing between ticks Max: 100
x.gridlines_visible boolean
Allowed values:
- true (On)
- false (Off)
x.gridlines_styling boolean
Styling.
x.gridline_color color
Color.
x.gridline_style string
Style. Allowed values:
x.gridline_width number
Width.
x.gridline_category_dividers boolean
Put lines between categories. On a categorical axis, this option disables the gridline on each tick and instead adds rules between each category to give a table-like design.
x.gridline_category_dividers_extend boolean
Extend. Extends the dividers into the axis margins.
Y axis
y.axis_visible boolean
Allowed values:
- true (Axis visible)
- false (Axis hidden)
y.numeric_scale_type string
Type. Allowed values:
y.linear_min number
Min.
y.linear_max number
Max.
y.log_min number
Min.
y.log_max number
Max.
y.datetime_min string
Min (date).
y.datetime_max string
Max (date).
y.flip boolean
Flip axis.
y.show_scale_settings boolean
Configure default min/max.
y.nice boolean
Round min/max. When enabled, scales automatically extend to "nice" rounded start/end values, such as hundreds or whole years. Allowed values:
y.zero_axis string
Include zero. Whether to extend the axis to include zero if the data values are all positive or all negative. Allowed values:
y.title_mode string
Type. Allowed values:
y.title string
Text.
y.title_styling boolean
Styling.
y.title_position string
Position. Allowed values:
y.title_weight string
Weight. Allowed values:
y.title_color color
Color.
y.title_size number
Size.
y.title_padding number
Padding.
y.tick_label_position string
Position. Allowed values:
y.tick_label_styling boolean
Styling.
y.tick_label_size number
Size.
y.tick_label_color color
Color.
y.tick_padding number
Padding.
y.tick_label_angle string
Angle. Allowed values:
y.tick_label_weight string
Weight. Allowed values:
y.tick_label_max_lines number
Max lines. Min: 1
y.tick_label_line_height number
Line height.
y.tick_label_space_mode string
Space mode. Allowed values:
y.tick_label_space number
Space.
y.tick_mode string
Mode. Sets the method for selecting tick values on the axis: Allowed values:
Auto automatically selects the ticks
Number allows you to choose the number of ticks to display.
Custom lets you select specific ticks to show.
Note: If the axis is categorical, Number mode is ignored.
y.tick_number number
Number. Approximate number of ticks or gridlines. The actual number will depend on the range of values, chart size, etc.
y.tick_custom text
One tick label per line. Specify the ticks to show, one per line. For dates, use the input format as specified in the datasheet.
You can also use {{FIRST}} and {{LAST}} to add ticks at the minimum and maximum of the axis. For example:
{{FIRST}}
25000
50000
75000
{{LAST}}
y.line_and_tick_color color
Line color.
y.line_and_tick_width number
Line width.
y.tick_length number
Tick length.
y.tick_side string
Side. Allowed values:
y.line_visible boolean
Axis line.
y.edge_padding number
Edge padding (%). Space between start/end of axis line and first/last category tick as a percentage of the spacing between ticks Max: 100
y.gridlines_visible boolean
Allowed values:
- true (On)
- false (Off)
y.gridlines_styling boolean
Styling.
y.gridline_color color
Color.
y.gridline_style string
Style. Allowed values:
y.gridline_width number
Width.
y.gridline_category_dividers boolean
Put lines between categories. On a categorical axis, this option disables the gridline on each tick and instead adds rules between each category to give a table-like design. Ignored for date and numeric axes.
y.gridline_category_dividers_extend boolean
Extend. Extends the dividers into the axis margins
Annotations
axes_highlights.x_enabled boolean
Show highlights on the x axis.
axes_highlights.x_lines text
One per line, in format “My label :: 2012”. One per line, using the format:
My label :: 2012
For dates, use the input format as specified in the datasheet. You can optionally specify a line color and a text color. For visualizations using a grid of charts, you can apply the annotation only on a specific chart. Use the format:
My label :: 2012 :: line_color / text_color :: facet_name
For example,
My label :: 2012 :: #eb0000 / #0084bd :: Category 1
If you want to add an annotation to just one specific chart but do not want to color the line/text, you can leave that part blank. For example:
My label :: 2012 :: :: Category 1
axes_highlights.x_line_color color
Line color.
axes_highlights.x_line_width number
Line width.
axes_highlights.x_line_dash number
Dash.
axes_highlights.x_areas text
One per line, in format “My label :: 2013 >> 2015”. One per line, using the format:
My label :: date >> date
For dates, use the input format as specified in the datasheet. You can optionally specify a line color and a text color. For visualizations using a grid of charts, you can apply the annotation only on a specific chart. Use the format:
My label :: 2012 :: area_color / text_color :: facet_name
For example,
My label :: 2012 >> 2015 :: #eb0000 / #0084bd :: Category 1
axes_highlights.x_area_color color
Area.
axes_highlights.x_area_opacity number
Area opacity.
axes_highlights.x_area_texture string
Area texture. Allowed values:
axes_highlights.x_label_vertical boolean
Vertical.
axes_highlights.x_label_y_position string
Y position. Vertically position the label at the top, bottom or in the middle of the line. This setting will be ignored if there is not enough space for the selected position Allowed values:
axes_highlights.x_label_x_position string
X position. Horizontally position the label on the left, the right or in the middle of the line. This setting will be ignored if there is not enough space for the selected position Allowed values:
axes_highlights.x_label_max_width number
Max width. Min: 1
axes_highlights.x_font_size number
Font size.
axes_highlights.x_font_weight string
Font weight. Allowed values:
axes_highlights.x_label_color color
Text.
axes_highlights.x_shadow_color color
Shadow.
axes_highlights.x_shadow_enabled boolean
Shadow.
axes_highlights.y_enabled boolean
Show highlights on the y axis.
axes_highlights.y_lines text
One per line, in format “My label :: 5000”. One per line, using the format:
My label :: 2012
For dates, use the input format as specified in the datasheet. You can optionally specify a line color and a text color. For visualizations using a grid of charts, you can apply the annotation only on a specific chart. Use the format:
My label :: 2012 :: line_color / text_color :: facet_name
For example:
My label :: 2012 :: #eb0000 / #0084bd :: Category 1
If you want to add an annotation to just one specific chart but do not want to color the line/text, you can leave that part blank. For example:
My label :: 2012 :: :: Category 1
axes_highlights.y_line_color color
Line color.
axes_highlights.y_line_width number
line width.
axes_highlights.y_line_dash number
Dash.
axes_highlights.y_areas text
One per line, in format “My label :: 2000 >> 8000”. One per line, using the format:
My label :: date >> date
For dates, use the input format as specified in the datasheet. You can optionally specify a line color and a text color. For visualizations using a grid of charts, you can apply the annotation only on a specific chart. Use the format:
My label :: 2012 :: area_color / text_color :: facet_name
For example:
My label :: 2012 >> 2015 :: #eb0000 / #0084bd :: Category 1
axes_highlights.y_area_color color
Area.
axes_highlights.y_area_opacity number
Area opacity.
axes_highlights.y_area_texture string
Area texture. Allowed values:
axes_highlights.y_label_x_position string
X position. Horizontally position label on the left, the middle or the right end of the line. This setting will be ignored if there is not enough space for the selected position Allowed values:
axes_highlights.y_label_y_position string
Y position. Vertically position the label above, below or in the middle of the line. This setting will be ignored if there is not enough space for the selected position Allowed values:
axes_highlights.y_label_max_width number
Max width. Min: 1
axes_highlights.y_font_size number
Font size.
axes_highlights.y_font_weight string
Font weight. Allowed values:
axes_highlights.y_label_color color
Text.
axes_highlights.y_shadow_color color
Shadow.
axes_highlights.y_shadow_enabled boolean
Shadow.
Animation
animation_style string
Allowed values:
- none (None)
- fade (Fade)
- flip (Flip)
animation_duration number
Animation duration. The duration it takes each cell to transition, in seconds
animation_spread number
Animation spread. The number of seconds over which the cell animations begin. Leave blank for a special spread that depends on the number of cells.
animation_key boolean
Only animate cells with same x and y value.
Controls
row_filter_all boolean
Include “All”.
row_filter_all_text string
“All” text.
row_filter.control_type string
Control type. Choose between a dropdown, buttons or a time slider. Allowed values:
row_filter.control_styles boolean
Adv..
row_filter.control_title string
Control title.
row_filter.button_group boolean
Grouped. Allowed values:
row_filter.button_group_width_mode string
Button group width. Allowed values:
row_filter.button_group_width_fixed number
Width. Max: 100
row_filter.dropdown_width_mode string
Dropdown width. Allowed values:
row_filter.dropdown_width_fixed number
Width. Max: 100
row_filter.slider_width number
Slider width. Width of the slider track in rems Max: 100
row_filter.slider_max_label_width number
Max label width. In rems, multiples of base font size. If larger than the longest label, only the space required to fit labels will be used. Max: 100
row_filter.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. Min: -100 Max: 100
row_filter.slider_loop boolean
Loop.
row_filter.slider_restart_pause number
Pause before loop. Measured in seconds and in addition to the regular step time displayed above Max: 100
row_filter.sort boolean
Sorting. Allowed values:
controls_style.font_size number
Text size. Max: 5
controls_style.font_weight string
Text weight. Allowed values:
controls_style.height number
Height. Max: 5
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 Allowed values:
dropdown_style.border_width number
Border width. Max: 20
dropdown_style.border_color color
Color.
dropdown_style.border_transparency number
Transparency. Max: 1
dropdown_style.border_radius number
Radius. Max: 100
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. Max: 20
button_style.border_color color
Color.
button_style.border_transparency number
Transparency. Max: 1
button_style.border_radius number
Radius. Max: 100
slider_style.track_color color
Track.
slider_style.font_color color
Text.
slider_style.handle_color color
Handle.
slider_style.play_color color
Play/pause.
slider_style.track_height number
Track height. Max: 1
slider_style.handle_height number
Height. Max: 10
slider_style.play_button boolean
Play button.
controls_container.alignment string
Alignment. Allowed values:
controls_container.controls_spacing number
Spacing. The space between controls, like dropdowns and adjacent button sets, in em units. Max: 5
Popups & panels
popup.mode string
Allowed values:
- none (None)
- popup (Popup)
- panel (Panel)
- both (Both)
popup.popup_is_custom boolean
Popup content. Allowed values:
popup.show_popup_styles boolean
Show popup styles.
popup.popup_custom_header html
Popup custom header. Use {{column_name}} to add a value from your data. Ensure the column is selected, or add it to Info for popups for popup use.
Advanced users can add HTML styling or add category colors to popup headers.
To hide parts of the popup when a column is empty using {{#if column_name}}Content for non-empty column_name{{/if}}. For example: {{#if Capital name}}Capital:{{/if}} {{Capital name}}. Here, the word "Capital:" will only show if the corresponding cell in the "Capital name" column is not empty.
popup.popup_custom_main html
Popup custom main content. Use {{column_name}} to add a value from your data. Ensure the column is selected, or add it to Info for popups for popup use.
Advanced users can add HTML for designs, styles, and images.
To hide parts of the popup when a column is empty use the syntax {{#if column_name}}Content for non-empty column_name{{/if}}. For example: {{#if Capital name}}Capital:{{/if}} {{Capital name}}. Here, the word "Capital:" will only show if the corresponding cell in the "Capital name" column is not empty.
popup.popup_custom_accessible text
Popup custom accessible content. A text alternative to visual custom popup content that will be read out by screenreaders. This content is added as an aria-label attribute to data point elements. You can still use {{column_name}} to add values from your data, but do not use HTML. For example: {Name}}, Population: {{Population}}, GDP: {{GDP}} If left empty, accessible content will fallback to the default popup content.
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. Allowed values:
popup.popup_background color
Fill color.
popup.popup_background_opacity number
Fill opacity. Max: 1
popup.popup_padding number
Padding.
popup.popup_radius number
Radius. Corner radius of popup
popup.popup_header_type string
Header style. Allowed values:
popup.popup_header_background color
Background.
popup.popup_header_text_color color
Text.
popup.popup_list_type string
List type. Allowed values:
popup.popup_list_label_weight string
Label weight. Allowed values:
popup.popup_list_separator string
List separator. Predefined values:
popup.popup_shadow boolean
Shadow.
popup.popup_pointer boolean
Pointer.
popup.panel_position string
Allowed values:
- overlay (Overlay)
- left (Left)
- right (Right)
- top (Top)
- bottom (Bottom)
popup.panel_open_duration number
Open duration. Max: 2000
popup.panel_side_fixed boolean
Always show.
popup.panel_side_default_content text
Placeholder content.
popup.panel_is_custom boolean
Panel content. Allowed values:
popup.show_panel_styles boolean
Show panel styles.
popup.panel_custom_header html
Panel custom header. Use {{column_name}} to add a value from your data. Ensure the column is selected, or add it to Info for popups for panel use.
Advanced users can add HTML for styling or add category colors to panel headers.
To hide parts of the panel when a column is empty using {{#if column_name}}Content for non-empty column_name{{/if}}. For example: {{#if Capital name}}Capital:{{/if}} {{Capital name}}. Here, the word "Capital:" will only show if the corresponding cell in the "Capital name" column is not empty.
popup.panel_custom_main html
Panel custom main content. Use {{column_name}} to add a value from your data. Ensure the column is selected, or add it to Info for popups for panel use.
Advanced users can add HTML for designs, styles, images, videos and embedded Flourish charts,
To hide parts of the panel when a column is empty using {{#if column_name}}Content for non-empty column_name{{/if}}. For example: {{#if Capital name}}Capital:{{/if}} {{Capital name}}. Here, the word "Capital:" will only show if the corresponding cell in the "Capital name" column is not empty.
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 visualization is really tall, this will make sure the panel content is always on top of the element you've clicked on Allowed values:
popup.panel_text_color color
Text color.
popup.panel_font_size number
Text size.
popup.panel_align string
Alignment. Allowed values:
popup.panel_background color
Fill color.
popup.panel_background_opacity number
Fill opacity. Max: 1
popup.panel_padding number
Padding.
popup.panel_radius number
Radius. Corner radius of panel
popup.panel_list_type string
List type. Allowed values:
popup.panel_list_label_weight string
Label weight. Allowed values:
popup.panel_list_separator string
List separator. Predefined values:
popup.panel_shadow boolean
Shadow.
Number formatting
formatter.prefix string
Prefix. Text to place in front of number
formatter.suffix string
Suffix. Text to place after number
formatter.n_dec number
Decimal places. Enter a negative integer to round to a whole number with that many zeros. For example, -2 will round to the nearest hundred. Min: -10 Max: 10
formatter.advanced boolean
Advanced.
formatter.negative_sign string
Styling of negative numbers. Allowed values:
formatter.strip_zeros boolean
Remove trailing zeros.
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”.
formatter.transform_labels boolean
Multiply/divide values.
formatter.transform string
Allowed values:
- multiply (Multiply by)
- divide (Divide by)
- exponentiate (×10 to the power of)
formatter.multiply_divide_constant number
formatter.exponentiate_constant number
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. Allowed values:
localization.output_separators string
Number format to display. How the numbers should appear on chart labels Allowed values:
Layout
Layout
layout.body_font font
Main font. This font will apply to the whole graphic by default. 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, You can optionally change the color for individual text elements, in other settings panels.
layout.background_color_enabled boolean
Color. Allowed values:
layout.background_image_enabled boolean
Image. Allowed values:
layout.background_color color
Background color.
layout.background_image_src url
Image URL.
layout.background_image_size string
Size. Allowed values:
layout.background_image_position string
Position. Allowed values:
layout.max_width_target string
Maximum width. Apply a maximum width to just the main graphic or everything (main graphic plus header, footer, etc). Allowed values:
layout.max_width number
Maximum width. Leave blank to stretch to container width Min: 50
layout.max_width_align string
Align. Allowed values:
layout.layout_order string
Layout order. Allowed values:
layout.space_between_sections string
Space between sections. Allowed values:
layout.space_between_sections_custom number
Custom. Max: 100
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. Allowed values:
layout.border.top.color color
Color.
layout.border.right.width number
Right.
layout.border.right.style string
Style. Allowed values:
layout.border.right.color color
Color.
layout.border.bottom.width number
Bottom.
layout.border.bottom.style string
Style. Allowed values:
layout.border.bottom.color color
Color.
layout.border.left.width number
Left.
layout.border.left.style string
Style. Allowed values:
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. It's not possible to adjust this on all elements, such as axes. Allowed values:
Note that when direction is set to right to left any alignment icons will be reversed.
layout.font_size_mobile_small number
layout.font_size_mobile_big number
layout.font_size_tablet number
layout.font_size_desktop number
layout.font_size_big_screen number
layout.breakpoint_mobile_small number
layout.breakpoint_mobile_big number
layout.breakpoint_tablet number
layout.breakpoint_desktop number
layout.breakpoint_big_screen number
Header
layout.header_align string
Alignment. Allowed values:
layout.title html
layout.title_styling boolean
Styling.
layout.title_font font
Title Font.
layout.title_size string
Size. Allowed values:
layout.title_size_custom number
Custom. Specify a custom responsive font size in rems. The best results will be with values between 1.2 and 3
layout.title_weight string
Weight. Allowed values:
layout.title_color color
Color.
layout.title_line_height number
Line height. Max: 3
layout.title_space_above string
Space above. Allowed values:
layout.title_space_above_custom number
Custom. Max: 100
layout.subtitle html
layout.subtitle_styling boolean
Styling.
layout.subtitle_font font
Subtitle Font.
layout.subtitle_size string
Size. Allowed values:
layout.subtitle_size_custom number
Custom. Specify a custom responsive font size in rems. The best results will be with values between 1.2 and 3
layout.subtitle_weight string
Weight. Allowed values:
layout.subtitle_color color
Color.
layout.subtitle_line_height number
Line height. Max: 3
layout.subtitle_space_above string
Space above. Allowed values:
layout.subtitle_space_above_custom number
Custom. Max: 100
layout.header_text html
layout.header_text_styling boolean
Styling.
layout.header_text_size string
Size. Allowed values:
layout.header_text_size_custom number
Custom. Specify a custom responsive font size in rems. The best results will be with values between 1.2 and 3
layout.header_text_weight string
Weight. Allowed values:
layout.header_text_color color
Color.
layout.header_text_line_height number
Line height. Max: 3
layout.header_text_space_above string
Space above. Allowed values:
layout.header_text_space_above_custom number
Custom. Max: 100
layout.header_border string
Allowed values:
- top (Top)
- bottom (Bottom)
- top_and_bottom (Top & bottom)
- none (None)
layout.header_border_width number
Width.
layout.header_border_color color
Color.
layout.header_border_style string
Style. Allowed values:
layout.header_border_space number
Space. Space between border and header text
layout.header_logo_enabled boolean
Allowed values:
- true (Enabled)
- false (Disabled)
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 visualization container Allowed values:
layout.header_logo_position_inside string
Position. Allowed values:
layout.header_logo_position_outside string
Position. Allowed values:
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. Allowed values:
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. Allowed values:
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 html
Note. To add the time/date stamp of when the data was last updated add {{data_last_updated}}. For example, "Last updated at {{data_last_updated}}". To customize the format, use the advanced options below.
layout.footer_note_secondary html
Note (secondary). The secondary note is placed below the source and primary note. To add the time/date stamp of when the data was last updated add {{data_last_updated}}. For example, "Last updated at {{data_last_updated}}". To customize the format, use the advanced options below.
layout.advanced_note_styling boolean
Advanced.
layout.footer_timestamp_format string
Time/date stamp formatting. Predefined values:
layout.footer_logo_enabled boolean
Image. Allowed values:
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 color 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. Allowed values:
layout.footer_align_vertical string
V. align. Allowed values:
layout.footer_border string
Allowed values:
- top (Top)
- bottom (Bottom)
- top_and_bottom (Top & bottom)
- none (None)
layout.footer_border_width number
Width.
layout.footer_border_color color
Color.
layout.footer_border_style string
Style. Allowed values:
layout.footer_border_space number
Space. Space between border and footer text
Accessibility
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".
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.) Allowed values:
URL state
url_state.enabled boolean
Update project from URL. Make it possible to change the visualization's settings/state from the URL hash, for example when embedding in an iframe or popup panel
url_state.whitelist text
Allowed state properties. List each state property you want to make changeable with the URL hash. See the template page for a full list of state properties.
Add one property name per line. Use dot format for nested properties, e.g. layout.background_color.