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Cesium 3D model translation

If you’re using the primitive API rather than the entity API then you do not have easy access to the orientation parameters. It’s possible to do all this from scratch, but it’s hard work…. var getModelMatrix = function(lon, lat, rotationZ) … Continue reading

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Responsive 2D table

For WeatherSupermarket I need to layout a grid forecasts for five days for up to six providers, Met Office, AccuWeather etc. I have the providers vertically, each with the location, and a dropdown box to change the location. The days … Continue reading

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Assorted IE8 polyfills: forEach, trim, placeholders

I ended up using all of the following during recent development of weathersupermarket 2.0 and another site. Array.prototype.forEach() implemented using a for loop and fn.apply if (typeof Array.prototype.forEach !== ‘function’) { Array.prototype.forEach = function(callback, context) { for (var i = … Continue reading

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Jasmine 2.0 + RequireJS + Blanket + Backbone

Jasmine 2.0 provides a JavaScript unit test framework, RequireJS provides a dependency modelling/loading and Blanket provides native in-browser JavaScript code coverage – no need for a coverage server etc. So why not use all three together, well, it’s kind of … Continue reading

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JavaScript debug with Chrome / Eclipse

/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome –user-data-dir=$(mktemp -d /tmp/chrome-profile-XXXXX) –remote-debugging-port=9222 Add this update site http://chromedevtools.googlecode.com/svn/update/dev/

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Scrolling waterfalls in HTML5

A number of technical domains use scrolling data displays, like the COTS octopus-760 sonar system. A typical implementation would involve a cyclic buffer (BufferedImage, pixmap etc) and two paint operations for efficiency. The means data can be inserted cheaply without … Continue reading

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Full javascript debugger built into Safari

What an awesome feature. defaults write com.apple.Safari IncludeDebugMenu 1

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