Mapchart

Purpose & Application

The mapchart is the best chart to display geographic disparities.

This chart is good to compare values of different areas.

📝 For example, the GDP per countries in the world.

The zones can be geographic regions or different areas of a commercial center.

📝 For example, the average basket of the stores of a commercial center.

It can also be used to locate cities or buildings on a map using markers.

In order to create a mapchart, the dataset must include a geographical column (detected automatically by Toucan).

Key features

What makes this graph a killer story?

• 📌 Markers make it easy to highlight specific points such cities for example and thanks to the color legend, we can see at a glance from which countries they depend.

In our case I can clearly tell that Paris, Lyon and Strasbourg contributes to France GDP 📈

• 🗺️ Custom base map allows you to display whatever you want! It can be the world, areas, countries, cities, neighborhood and even floor plans of a shopping mall -great to analyze which shops are the most visited and if those shops are located close to each other

In our case I can zoom in Italia and quickly tell how zones are performing. Wooow! 4 areas have a very high GDP : Piemonte, Lombardia, Toscana, Sardegna, Sicilia 🤩

• ⚙️ Crossfilter functionality allows you to use your map chart as a master with another viz! It can be a horizontal bar chart, a stacked bar one, etc.

• 🔎 Smooth drill functionality makes it easy on the eye, your user will love it! Add a drill to your mapchart to go in a deeper level of detail.

How easy it is to get the Africa GDP then see the details for each country! 🌍

Before the drill

After drilling on North of Africa

• Compatible and optimized mobile display, get your data anywhere 📱!

Configuration

In order to create a mapchart, the dataset used must contains a geographical column (that will be automatically detected and used). Look at this documentation to have more information on how to prepare the dataset for this purpose.

*Mandatory parameters

Section	Option	Configuration Tutorial
	Dataset*	Select the dataset used by the chart
Zone	Color zones	This allows to apply a color in geographical zones depending on a value. Configure the fields (mandatory: Label and Color value)
Zone	Color zones / Label	Select the column contaning zone labels
Zone	Color zones / color value	Select the column contaning zone colors
Zone	Color zones / Default selected zone	Enter the default selected zone among "first", "last" or the label within the dataset
Zone	Color zones / Zone opacity	Enter the opacity value between 0 and 1 (0 is completely transparent, the default value is set as 1)
Zone	Color zones / Use scaling on unfiltered dataset	Activate the option by clicking on the toogle
Zone	Color zones / Number of scale's buckets	Enter the number of buckets for the scale
Zone	Color zones / Display values on zones	Activate the option in order to display values on zones
Zone	Color zones / Custom color thresholds	Check the box Add threshold value(s) (limited at 3)
Zone	Color zones / Additional info	Check the box Select column(s) of the dataset containing additional info
Zone	Color zones / Scale	Check the box Customize color by clicking on it You can also add new bounds
Zone	Color zones / Reverse scale	Activate this option to set high values as cold and low ones as hot
Zone	Color zones / Missing data zones	Manage the display of zones with no data
Markers	Markers	It allows to apply markers (circle) on some location based on latitude, and longitude. Configure the fields
Markers	Markers / Latitude	Select the column containing latitude coordinates
Markers	Markers / Longitude	Select the column containing Longitude coordinates
Markers	Markers / Label	Select the dataset's column containing markers label
Markers	Markers / Markers color	Select the dataset's column contaning markers color
Markers	Markers /Markers size	Check the box Select the configuration type Customize the size according the configuration type
Markers	Markers / Opacity	Enter the opacity value between 0 and 1 (0 is completely transparent, the default value is set as 1)
Markers	Markers / Additional info	Check the box Select column(s) of the dataset containing additional info
Markers	Markers / Default selected marker	Enter the default selected marker among "first", "last" or the label within the dataset
Markers	Markers / Recycle groups colors	Activate the option to recycle groups colors when chart data changes
Legend	Display legend	It allows to display a legend on the right part of the chart. Click on the checkbox. (You can display the legend of all labels by activating the option "Use exhaustive legend")
Map Background	Background	It allows to display a map as a background. Click on the checkbox Click on the checkbox "Background type" and select the type of background
Map Background	Projection	This is an advanced option (know more about map projection here). By default, the Mercator projection (WGS 84) is assumed. If geographical coordinates in your data are already projected on a plan, set the projection option to the value "plan".
Display	Fixed Map	Activate the option the option to prevent user from zooming within the map
Display	Size	(Used only for multiple charts) Enter a proportion of the total screen between 0 and 1
Display	Mobile size	(Used only for multiple charts) Enter a proportion of the total screen between 0 and 1 for mobile screens
Display	Custom CSS Class	Set a custom CSS class to target this specific chart with CSS
Tutorial	ID	Enter an ID. Change the ID to display the tutorial again. All tutorials with the same ID will be displayed only once