How to :: pin markers on a map

Overview

This tutorial explains how to pin information on a map with the markers configuration.

You want to create a mapchart displaying population for a few european cities? Let’s do a mapchart with markers.

💡 This could be very useful if you’d like to show your shops on a map

Step1 : Define your data

First, you need a dataset with what you’d like to show on your map. In our example, the list of each city and its population figures.

Therefore, in your data explorer, you should have a dataset like this:

Important

👉 latitudeand longitude are mandatory, while country, name, type and Population are optional.

You can find an example dataset suitable for a mapchart right here

Step2 : Chart parameters

You now need to define the markers from your dataset.

Select the markers’ configuration in the Chart menu.

Position your markers by filling the longitude and latitude fields with columns containing your coordinates

Optional parameters

You can also fillup optional parameters :

• Add a label to your marker to let users know what this maker is.
• Add marker's color to color your pin. For example identify cities from the same country or of different types. Color is useful for visually grouping markers that correspond to a common type.
• Adjust marker's size to modify the size of the pin. You can base it from a column or define a fixed size.

Using sentiment

We saw previously that we could configure markers color to color pins depending on a column. But sometimes, you don’t want to display one color for each different value, but rather display a sentiment depending on the value.

To achieve this, simply add a sentiment rule to the column used to color the markers and voilà!

Mapchart with markers colored by sentiment

If you need to customize the label names for each sentiment, that’s is possible as well! You need to switch to code mode and add a labels property:

Background

Right now all you have is a bunch of points on a white background.

You need to add tiles to draw the shape of your map. “Tiles” are the squared images that, when put together, constitute a map. They can contain administrative boundaries and labels, roads, terrain, and even building names.

All tiles together form the background of your map behind your markers.

Activate the background and select the default background type.

Warning

Don’t hesitate to save your story and refresh your page to see changes.

And you are done !! 🎉 🎉

OMG sooooo easy 😱 😱 😱