Hybrid Visuals » math http://www.hybridvisuals.nl Shaping the Random || Quartz Composer and other generative experiments Mon, 09 Aug 2010 23:47:36 +0000 en hourly 1 http://wordpress.org/?v=3.0 Linear Value Translation qcClip http://www.hybridvisuals.nl/downloads/linear-value-translation-qcclip/ http://www.hybridvisuals.nl/downloads/linear-value-translation-qcclip/#comments Thu, 19 Mar 2009 14:40:37 +0000 admin http://www.hybridvisuals.nl/?p=194 This is a Quartz Composer Clip macro, that allows for a linear translation of a variable number. Basically you can use it to translate a number within a certain range (say [0,1]) to a new range (say [-1,1]). Fill in the old and new ranges, and attach the input. The patch will take care of the math for you.

Place the .qtz file in ~yourhomefolder/Library/Application Support/Apple/Developer Tools/Quartz Composer/Clips. It should then be available from the patch creator window.

Inputs:
value – the value to be translated
oldMin – the old minimum of the value (ie 0)
oldMax – the old maximum of the value (ie 1)
newMin – the new minimum of the value (ie -1)
newMax – the new maximum of the value (ie 1)

linear value translation.qtz

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