Create Map Visualization

[banjtheman]

What is the Task

Create a Map Visualization for the data

Why do we want to do this

To have a map viz

How can I get started?

1. Add a new viz to https://github.com/banjtheman/defundthepolice/blob/main/apps/viz.py
2. Here is an example code of a streamlit map https://github.com/randyzwitch/streamlit-folium

Definition of Done

• [ ] Can select a map for the budget visualization
• [ ] The map should be centered around the current county
• [ ] Marker for the current county should be red
• [ ] Mark for other counties should be blue

[trejavu]

If it's all right with you, I'd like to work on this issue.

[banjtheman]

Map data located at https://github.com/banjtheman/defundthepolice/tree/main/data/map_data

[trejavu]

So, I have a rough sketch of what the map would look like but I need to finish up a few buggy things and wanted some feedback to make sure it was what you're looking for. I've attached a screenshot for the DC map. A couple questions from here...

1. Do we want to include any data in the popup or is it more of a tool to see where you've selected vs other neighboring counties?

2. If we did want to include data, would we want to do a choropleth map in addition to this map to look at spending per capita, budget line item percentages, or something else to compare counties?

[banjtheman]

Nice

1. When hover on the pin should show the budget data (item, percent)

2. Yes choropleth map will be great in highlighting differences
   Altair has great choropleth map that can be used https://altair-viz.github.io/gallery/choropleth.html

[callumrollo]

If going for a chloropleth map, will we want the boundaries of the counties? Currently it's just the central lat and lon. If so, I can extract county boundary geometries and add them to the dataset

[callumrollo]

I've made a geopandas table of the county shapefiles. The resultant csv is 200 Mb though :/ they're pretty hi-def. Going to create an Issue for discussion