Tyler Bird

Using Builder for Creating Data-driven Polygon Maps

In the same way you can create data-driven maps by changing the size of the points in your data, you can also change the color of your polygons or points/lines.

Following the UX patterns we explained in the last blog post, you will notice that creating a Choropleth map –a map where you change the color of your geospatial features depending on a value– is just as easy as with the old Editor. You just need to have a numeric column in your data, so you can use the values contained in it to change the color of your features. To do so,

  • Click on the Layer name
  • Click on the Style tab
  • Click on the Polygon color
  • Click on BY VALUE
  • Select your desired column

If you want to customize your map further, change the quantification method for your ramp in the same component.

Learn more about CARTO Builder and how to improve the way you make decisions

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To learn more about how this works behind the scenes check out the CartoCSS panel and TurboCarto repo.

Keep an eye on our blog to stay up-to-date on the coolest features of the new Builder, and let us know what you think about CARTO Builder.

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