A rather geeky/technical weblog, est. 2001, by Bramus
How do you reach soldiers held under 24-hour armed guard in deeply rural territory? Juan Carlos Ortiz’s mind raced between ideas: Sky-writing? Aid parcels containing secret messages? […] They had to create a message that could be understood by the hostages, but remain invisible to their captors. They needed to give the hostages hope, and …
Continue reading “The Code: A Declassified And Unbelievable Hostage Rescue Story”
A verifiable set of well-chosen coding rules could make critical software components more thoroughly analyzable, for properties that go beyond compliance with the set of rules itself. To be effective, though, the set of rules has to be small, and must be clear enough that it can easily be understood and remembered. The rules will …
With CSS transforms we can’t define arbitrary shapes using a set of points, we’re stuck with HTML elements which are always rectangular and have two dimensional properties such as top, left, width and height to determine their position and size. In many ways this makes dealing with 3D easier, as there’s no complex math to …
The aim of dimple is to open up the power and flexibility of d3 to analysts. It aims to give a gentle learning curve and minimal code to achieve something productive. It also exposes the d3 objects so you can pick them up and run to create some really cool stuff. dimple → dimple Examples …
Continue reading “dimple – A simple charting API for d3 data visualisations”
What I like about this visualisation is that it represents 3 dimensions into 2: conflict startdate (X-axis), conflict duration (Y-axis), and number of fatalities (size of the flower). Another interesting thing is that the duration of the conflict is actually visualised in two ways: next to the Y-axis the length of the stem represents that …
$hashids = new Hashids\Hashids(‘this is my salt’); $id = $hashids->encode(1, 2, 3); $numbers = $hashids->decode($id); Hashids is a small open-source library that generates short, unique, non-sequential ids from numbers. You give it a 347 and it gives back “yr8”, you give it a [27, 986] and it returns “3kTMd”. You can also decode those ids …
Tommy Caldwell and Kevin Jorgeson are trying to free-climb the nearly 3,000-foot Dawn Wall, a vertical sheet of mostly smooth granite that many believe is the most difficult climb in the world. Neat WebGL powered visualisation of The Dawn Wall, a route to climbing El Capitan. Wish it were a tad more interactive though (such …
Continue reading “The Dawn Wall – El Capitan’s Most Unwelcoming Route”
var line = turf.linestring([ [-76.09130859375, 18.427501971948608], [-76.695556640625, 18.729501999072138], [-76.552734375, 19.40443049681278], [-74.619140625, 19.134789188332523], [-73.65234375, 20.076570104545173], [-73.157958984375, 20.210656234489853]], { stroke: ‘#f00’ }); var curved = turf.bezier(line); curved.properties = { stroke: ‘#0f0’ }; var result = turf.featurecollection([line, curved]); Uses GeoJSON for all geographic data and expects the data to be standard WGS84 datums. Constructing Points – for example …
Continue reading “Turf.js – Advanced geospatial analysis for browsers and node”
:nth-child() selector to invent new onesWhen combining :nth-child() with some other pseudo selectors, one can actually create new types of selectors. “:nth-of-m-child” selector /** * This selector will select the third element in a row, * if it is also the third to last element … thus selecting * the 3rd child in a row of 5 elements */ span:nth-child(3):nth-last-child(3) …
Continue reading “(ab)using CSS3’s :nth-child() selector to invent new ones”