RandomEtc

Implementation of Jarke J. van Wijk and Wim A.A. Nuij's smooth and efficient zooming and panning for Polymaps.

Type a place name in the search box, top right, and hit "Go!" to fly there.

RandomEtc

// first of all make sure we have enough arguments (exit if not)
if (process.argv.length != 5)
{
    console.error("Usage: node csv2html.js input.csv template.ejs output.html")
    console.error();
    console.error("Outputs the given template for each row in the given input.")
    console.error("Uses the first row of the CSV as column names in the template.")
    process.exit(1);
}

RandomEtc

var url = require('url'),
    mongodb = require('mongodb');

var sourceUrl = 'mongodb://user:pass@host:port/db',
    targetUrl = 'mongodb://user:pass@host:port/db',
    collectionName = 'my_awesome_collection';

function openDbFromUrl(mongoUrl, cb) {
    var dbUrl = url.parse(mongoUrl),
        dbName = dbUrl.pathname.slice(1), // no slash

RandomEtc

// preserve Twitter's style of JSON string encoding...
// escape higher value unicode (lowercase hex)
// escape < and > (uppercase hex)
// escape / in strings (\/)
// hugs! https://gist.github.com/1306986
// http://stackoverflow.com/questions/4901133/json-and-escaping-characters
function escapedStringify(s, emit_unicode) {
   var json = JSON.stringify(s);
   return emit_unicode ? json : json.replace(/\//g,
      function(c) {

RandomEtc

// node.js geo polygon map tile rendering!
// requires https://github.com/learnboost/node-canvas and GeoJSON data files
// e.g. 
// data from naturalearthdata.com converted to GeoJSON with GDAL's ogr2ogr
// or from datasf.org, reprojected too:
// ogr2ogr -f GeoJSON sfbay.js sfbay.shp -t_srs EPSG:4326

var Canvas = require('./vendor/node-canvas/lib/canvas'),
    http = require('http'),
    fs = require('fs');

RandomEtc

/* 

 An Albers Equal Area Conic projection in javascript, for protovis.

 For centering the contiguous states of the USA in a 800x400 div, I used:

 var scale = pv.Geo.scale(albers(23, -96, 29.5, 45.5))
                .range({ x: -365, y: -375 }, { x: 1200, y: 1200 });

 http://mathworld.wolfram.com/AlbersEqual-AreaConicProjection.html

RandomEtc

Key was generated using:

	tom% openssl genrsa -des3 -out example.com.key 2048
	Generating RSA private key, 2048 bit long modulus
	....+++
	..........................................................................................................................+++
	e is 65537 (0x10001)
	Enter pass phrase for example.com.key:
	Verifying - Enter pass phrase for example.com.key:
	%tom

RandomEtc

australian-states.json
ne_10m_admin_1_states_provinces_lakes.geojson
ne_10m_admin_1_states_provinces_lakes.geojson.gz

RandomEtc

This animated bar chart is adapted from Mike Bostock's sample bar chart to allow redrawing and animated transitions.

RandomEtc

Fine-grained control of randomly entering and exiting things in D3.js, for impeccable object constancy. Adapted from an example co-authored with Mike Bostock.