Capybara Team

Riccardo Rorato, Alessandro Arata, Gagandeep Singh, Alessandro Penco, Gabriele Caletti, Alessandro Drago

This lab is about visualizing geospatial data via maps with regions that encode values such as tree densities.

Choropleth Map - Absolute tree count

This map is shows the different neighborhood of Trento, separating them as polygons. The color inside the polygon encodes the number of trees present in that region. We chose to discretize the colorbar into a number of colors equal to the number of regions. On hover, a tooltip shows more info (name of neighborhood, number of trees, area). The central parts look to have more trees, probably because the data collection was more intensive there.

Choropleth Map - Density values

Exactly like the map above, but showing the total canopy cover divided the region area. The results look largely the same: with a more similar number of trees, we could have seen differences if one neighborhood had many large trees compared to others.

Choropleth Map - Oxygen values

Here the color encodes the total oxygen production by neighborhood: here the values look more even: maybe the less-populated regions have trees with a bigger oxygen production.

Dot density Map - 1 color

Each tree is represented by a dot on the geographical location on the map. We can see geometric organizations (probably parks where trees are neatly organized). Each dot has a 0.7 opacity, but since most trees' dots overlap with others (since they are close), the color looks as bright as full opacity.

Dot density Map - Many colors

As above, but each dot is bigger, full opacity and encodes the tree type. It looks like Gardolo has a zone with very neatly organized trees, all in the top-9 chart.