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Re: Cocoa and PICT
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Re: Cocoa and PICT


  • Subject: Re: Cocoa and PICT
  • From: Henry McGilton <email@hidden>
  • Date: Mon, 13 Aug 2007 20:01:55 -0700


On Aug 13, 2007, at 12:30 PM, I. Savant wrote:

On 8/13/07, Scott Thompson <email@hidden> wrote:

Try setting your flatness to something around 0.5 - 2.0 or so and you
should have something that is pretty smooth as you are going to get it.

Thing is, adjusting the flatness doesn't seem to make much of a visual difference ... I don't mind sacrificing performance for more segments, but there just doesn't seem to be any difference between 0.2 and 1.0.

Also, did you really mean 2.0? Isn't the convention usually that 1.0 is 100%?


Assuming  setFlatness  is a cardboard replica of PostScript's
setflat  operator, the (excerpted paraphrased) description
for  setflat  from the most recent PostScript reference states:

    'stroke, fill, clip operators render curves by approximating
     them with straight line segments.  flatness is the error
     tolerance of this approximation---the maximum allowable distance
     of any point of the approximation from the corresponding
     point on the true curve *measured in output device pixels*
     (* . . . *  emphasis).

     Acceptable range of values (for flatness) is  0.2  to  100.0.'

    Cheers,
        ........  Henry


===============================+============================ Henry McGilton, Boulevardier | Trilithon Software Objective-C/Java Composer | Seroia Research -------------------------------+---------------------------- mailto:email@hidden | http://www.trilithon.com | ===============================+============================




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  • Follow-Ups:
    • Re: Cocoa and PICT
      • From: Marcel Weiher <email@hidden>
References: 
 >Cocoa and PICT (From: "I. Savant" <email@hidden>)
 >Re: Cocoa and PICT (From: "I. Savant" <email@hidden>)
 >Re: Cocoa and PICT (From: Scott Thompson <email@hidden>)
 >Re: Cocoa and PICT (From: "I. Savant" <email@hidden>)

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