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# Christopher Manning christophermanning

Last active September 13, 2019 10:32
Red Dots On A Map

Created by Christopher Manning

## Summary

Red dots on a map; it really makes you think. Uses Poisson-Disc Sampling and a point in polygon test to spread out dots on this map of the United States.

Last active August 29, 2015 14:02
Rails ActiveRecord 4.1.2.rc2 Namespaced HABTM Regression
```➜  ~  ruby habtm.rb
Active Record 4.1.1
-- create_table(:articles, {:force=>true})
-> 0.3158s
-- create_table(:publisher_magazines, {:force=>true})
-> 0.0005s
-- create_table(:articles_publisher_magazines, {:force=>true})
-> 0.0005s
#<ActiveRecord::Associations::CollectionProxy [#<Article id: 1>]>```
Last active October 27, 2019 20:03
Random Walk USA

Created by Christopher Manning

## Summary

This is an experiment using a random walk to draw shapes. Adjusting theta results in a very organic or procedural drawing. The random walk stays in the geometry by using a point in polygon test.

Controls

Last active May 3, 2018 16:02
Kaprekar Routine

Created by Christopher Manning

## Summary

Kaprekar's constant is 6174. The Kaprekar Routine arranges four digits (zeros are appended to the number if it's less than 4 digits) in descending and ascending order, subtracts those two numbers, and repeats the process until the difference is 0 (degenrate case) or 6174 (Kaprekar's constant). The color is HSL with a scale of 0 to 300 in the

Last active December 22, 2015 04:38
Animated Civis Analytics Logo

Created by Christopher Manning

## Summary

I created this to experiment with SVG rotate, chained transitions, and arc generated paths. I picked my company's logo since it has an interesting design and I had an idea of animating it.

My first attempt had me just using the d3.svg.arc() startAngle and endAngle to create the arcs, but that left the arcs with angled edges when they were rotated to line up. Instead, the arcs are full circles and white rectangles rotate around each arc to give the illusion

Last active September 13, 2019 10:31
CTA Line Simplification
Last active October 27, 2019 20:02
Spherical Random Walk

Created by Christopher Manning

## Summary

Draws a random walk onto a sphere using canvas and geo projections.

## Controls

Last active December 14, 2015 03:29 — forked from gtb104/README.markdown
d3.js polybrush.js

Forked from: https://gist.github.com/gtb104/3667340

Here's a d3 plugin that allows you to create a polygon selection. You instantiate it just like d3.svg.brush.

`var brush = d3.svg.polybrush();`

It has an extra public method that 'brush' does not, and that's 'isWithinExtent(x, y)'. You can use this method to test if a given point falls within the drawn extent.

```if (brush.isWithinExtent(x, y)) {
console.log("I'm inside!");```
Last active March 12, 2020 02:14
Octocat Force Layout

Created by Christopher Manning

## References

This is not affiliated with or endorsed by GitHub. The Octocat is a registered trademark of GitHub.

Last active November 3, 2019 04:00
Flow Field