This is a brief illustration of how to use animate with d3.js using two examples:
This was created for a workshop for the M.S. Data Visualization program at Parsons School of Design. Note the data was auto-generated by ChatGPT and is not intended to be real data.
The NYC BOE released the data files, but no metadata or explanation, so we have to do this ourselves.
Each row is a cast vote, and each column is a preference for a candidate. These are the columns that appear in all spreadsheets, regardless of what borough or ballot type they are:
| Column | Explanation |
|---|---|
| Cast Vote Record | unique ID number |
| Precinct | AD (assembly district) and ED (election district) where the voter is registered(your polling place is determined by your AD/ED) |
| #ifdef GL_ES | |
| precision mediump float; | |
| #endif | |
| uniform vec2 u_resolution; | |
| uniform float u_time; | |
| vec3 colorA = vec3(1., 0.01, 0.01); | |
| vec3 colorB = vec3(0.576, 0.161, 0.976); |
| # Sampling event ID Sampling type Platform name Start day (UTC) Start month (UTC) Start year (UTC) Start UTC time (hours) End UTC time (hours) Sampling duration (hours) Start latitude (degrees) Start longitude (degrees) End latitude (degrees) End longitude (degrees) Sampling distance (km) Sampling width (km) Sampling area (km2) Sampling depth (km) Wind speed (Knots) Sea state (Beaufort) Vessel speed (knots) Observations | |
| 1 0.0 Manta trawl RV Ocean Starr 25 7 2015 22.30 22.73 0.43 33.1932 -128.7879 33.1795 -128.8071 2.36 0.0009 0.0021195 0.00015 10 3 3 | |
| 2 0.1 Mega trawl RV Ocean Starr 25 7 2015 21.50 23.05 1.55 33.2135 -128.75 33.1656333333333 -128.83 9.156 0.006 0.054936 0.001 10 3 3 | |
| 3 1.1 Manta trawl RV Ocean Starr 27 7 2015 15.72 18.48 2.77 29.0751 -133.9640 29.0695 -134.1250 15.66 0.0009 0.01409337 0.00015 14 4 3 | |
| 4 1.2 Manta trawl RV Ocean Starr 27 7 2015 15.80 18.38 2.58 29.0748 -133.9680 29.0693 -134.1180 14.59 0.0009 0.01313172 0.00015 14 4 3 | |
| 5 1.3 Mega trawl RV Ocean Starr 27 7 2015 15.57 19.22 3.65 |
| function asyncWithCallbacks(callback){ | |
| getApiUrl(apiName, function(err1, url){ | |
| if(err1) throw new Error(err1); | |
| callApi(url, function(err2, data){ | |
| if(err2) throw new Error(err2); | |
| writeDataToServer(data, function(err3, response){ | |
| if(err3) throw new Error(err3); | |
| console.log('welcome to the third circle of callback hell.') | |
| callback(response); | |
| }) |
| license: mit | |
| height: 500 | |
| border: no |
| license: mit | |
| height: 500 | |
| border: no |