CartoDB Exercises

Presentation viewable at maptimeatx.github.io/cartodb-exercises/

Source code for the presentation is at github.com/MaptimeATX/cartodb-exercises

CartoDB

First, check out maptime.io/cartodb-tutorial/

Then, get a CartoDB account at cartodb.com/signup for today's exercises

Tutorial - World Cities Map

Natural Earth Data - naturalearthdata.com

This is a great resource for general cartographic data, and it's public domain!

Tutorial - World Cities Map

Download Natural Earth Data Populated Places Simple Shapefile: goo.gl/QtJiCn

Open cartodb.com and log in

Drag the downloaded ne_50m_populated_places_simple.zip file into your CartoDB Dashboard

Tutorial - World Cities Map

Whoa! A fully functional web map!

Tutorial - World Cities Map

Explore the Data View, note the different columns (especially pop_max)

Tutorial - World Cities Map

Explore the Map View, experiment with the Wizards.

Try making a Bubble Map based on population.

Tutorial - World Cities Map

Add an Info Window to display name and pop_max

Tutorial - World Cities Map

Tutorial - World Cities Map

Tutorial - World Cities Map

Add the following rule to add labels to your city dots:

#ne_50m_populated_places_simple::labels {
  text-name: [name];
  text-face-name: 'DejaVu Sans Book';
  text-size: 10;
  text-label-position-tolerance: 10;
  text-fill: #000;
  text-halo-fill: #FFF;
  text-halo-radius: 1;
  text-dy: -8;
  text-allow-overlap: true;
  text-placement: point;
  text-placement-type: simple;
}

(Visit goo.gl/zGqpGA to copy-paste)

Tutorial - World Cities Map

Tutorial - World Cities Map

Now that we have labels, let's change the basemap to one without its own labels

Tutorial - World Cities Map

Click Visualize, then Publish to get a shareable link to your map

Nice job!

Exercise 1 - Population Choropleth

Introduce yourself to the person next to you and work together for this exercise

Exercise 1 - Population Choropleth

Choropleth Map - a map where areas are shaded or patterned in proportion to a statistical variable being displayed on the map (en.wikipedia.org/wiki/Choropleth_map)

Exercise 1 - Population Choropleth

1. Download Map Academy's Counties Shapefile: acdmy.org/d/counties.zip

2. Import the downloaded counties.zip file into your CartoDB Dashboard

3. Use the Wizard to make a Choropleth Map based on population. Hint: Use pop_sqkm

Exercise 2 - Explore Earthquakes Data

1. Download All Earthquakes for the Last 30 Days from USGS: goo.gl/hhoAyK

2. Import the all_month.csv into your CartoDB account (drag and drop)

3. Experiment with the Wizard tab. Try Heat Map, Intensity, Density, maybe even Torque.

Example: cdb.io/1JUy0WP

Good Job!

Thanks to all of you for coming!

Thanks to ObjectRocket for hosting and CartoDB for the pizza!

Learn more about CartoDB at the CartoDB Map Academy