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Re: Comparing NSColor instances

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Re: Comparing NSColor instances

Subject: Re: Comparing NSColor instances
From: John Stiles <email@hidden>
Date: Mon, 5 Nov 2007 07:18:35 -0800


On Nov 4, 2007, at 6:58 PM, Ricky Sharp wrote:

Also, I'm never keen on doing exact compares on floating point values, so I may add in a bit of "slop" to the compare. On the other hand, if I do normalize two colors to the same color space, it should be reasonable to assume it will have identical valued components.

Use the slop. I can easily envision a scenario where converting RGB- >CMYK->RGB could introduce error. Just because the algebra cleanly reduces out to nothing doesn't mean the CPU will introduce zero error along the way. _______________________________________________

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References:  
  >Comparing NSColor instances (From: Ricky Sharp <email@hidden>)
  >Re: Comparing NSColor instances (From: Ricky Sharp <email@hidden>)




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