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Creating your first map
This guide introduces you to the core of CARTO Builder. From styling your layers to adding widgets and sharing an interactive map with other users; it's the ideal resource for both newcomers and those revisiting the foundational aspects of Builder.
The Maps section enables you to create and manage maps built with CARTO Builder in the CARTO Workspace.
From your Maps page, click Create your first map. This will open the CARTO's map-making tool, Builder.
- 1.Start by clicking on "Add Source from..." button. In CARTO Data Warehouse, navigate to demo_data > demo_tables and select “fires_worldwide” dataset.
Add a source from CARTO Data Warehouse
Once your data source is selected, CARTO Builder will automatically generate the default layer.
- 2.It's a good practice to rename this layer for clarify. Let's call it "Fires".
- 3.Navigate to the Layer Style settings. Here, under the "Fill Color" option, you'll find "More Options". In this section, you can select "Frp" column to style the layer based on the fire radiative power. Remember to select a color palette that makes sense for your data.
Style the layer based on fire radiative power
- 4.For better visibility, specially at lower zoom levels, adjust the "Radius" to 1.5.
Setting the radius of your layer
Widgets elevate the user experience by facilitating data exploration. Users can derive insights by interactive with interconnected filters that not only relate to each other but also adapt based on the map's viewport.
Configuring a Formula Widget
Adding a Category Widget
- 7.Create a Histogram Widget based on the "bright_ti4" column to showcase the range and frequency of observed bright temperatures. Ensure you adjust the "Custom min. value" to 290 to filter out outliers.
Creating a Histogram Widget
- 8.Enable Interactions on your layer. We will choose the "Click" option so that Interactions are displayed when users "click" over specific features within the map. Here you can also decide what specific information will be displayed in the pop-up as well as the labelling and formatting.
Enabling feature interactions
- 9.Adjust the legend to clarify the color indicator of your layer, such as "Fire Radiative Power (FRP)" for better understanding.
- 10.Under the "Layer Control", activate the "Layer Selector". Also, ensure the legend is set to display when the map is loaded by enabling the "Open the legend when loading the map" option.
Setting up the legend properties
- 11.With CARTO Builder, you have a wide range of choices when it comes to basemaps. For our current data, the CARTO Dark Matter provides an apt background, highlighting the fires.
Changing Basemap to CARTO Dark matter
Map descriptions are essential for providing context and enhancing user experience.
- 12.To edit the Map Description, click the "i" button at the top right corner. This will open an editable template. Our description field supports Markdown, allowing you to format text, insert links, images, and bullet lists for clearer, more engaging descriptions. For a preview, toggle to View mode by clicking the "eye" icon.
Adding a Map Description for context
- 13.Before sharing, give your map a meaningful title. How about "Fires across the globe"?
Give a title to your map
- 14.Once named, the "Share" button becomes active. Dive into the "Sharing options" and pick the "Public map". This way, your map becomes accessible to anyone equipped with the link.
Share your map publicly
And voilà! Copy the map link, and you're ready to share.