PUBLIC MARKS with tags java & processing

The MidiBus is a MIDI library for Processing. It provides a quick and simple way to access and interact with installed MIDI system resources. The MidiBus is aimed primarily at real time MIDI applications. The focus is on strong MIDI I/O capabilities and keeping frills to a minimum (e.g. currently no built in sequencer, file read/write, MIDI recording/playback).

I made these videos using Processing, a Java-based language, to make these data visualization videos of welovelocal’s London reviews over time. They span from the start of welovelocal to January 29th, 2008. The colour of each dot represents the rating of each review with red being 1 star and green being 5 stars.

very nice visualizations of rating of the time, mostly green though.

Mixed SAX/DOM XML processing

The DOMParser is probably the most commonly used Java object for reading and validating XML documents. The DOMParser reads the XML and (depending on the parser initialization) will validate the XML against an XML schema. If the XML is valid, the DOMParser will return a Document (DOM) object, which represents the XML as a tree structure. The XML can be processed by walking this tree. An example of how the DOMParser can be applied to processing arithmetic expressions in XML format is discussed on a companion web page.