Posts Tagged ‘math’
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March 19th, 2009
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)