For the link between the physical items and their digital entries, I proposed to tag the items with DataMatrix Codes (2D Barcodes, see DataMatrix@Wikipedia) that store a computer readable unique reference.
Given that the proposal for the terminals was to use iMacs, I put together a piece of software that would allow to grab the barcodes directly from the built-in webcam.
To make it versatile, I developed a simple Quartz Composer Plugin that provides a "DataMatrixDecoder" patch, based on libdmtx.
The result in a simple composition (above), with the viewer (below); the patch is marked with a red dashed oval:
It is versatile, because these compositions can - for example - be embedded into Cocoa applications :
Unfortunately the proposal never turned into a project, but if anybody is interested, don't hesitate to contact me.
Edit 09/03/10:
I have packaged a binary distribution under a Creative Commons Non-Commercial License, which can be downloaded here (RapidShare). Enjoy.
4 comments:
Just saw your Tweet about your DataMatrix plugin for Quartz Composer. Are you planning on releasing it for general use? I'm definitely interested in it.
Matt:
I am still trying to figure out how to include libdmtx as a shared library in the plugin (@executable_path does not seem to work) so I can put up a simple download for others to try it out.
Check out Kineme.net, if you haven't seen it already. Someone there may be able to assist. I'm not a plugin developer but I know there are a few on there that are.
I figured it out, the edit in the post has the download link and this entry describes the solution (using @loader_path).
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