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Re: [pdf-devel] type 0 functions, splines
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From: |
jemarch |
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Subject: |
Re: [pdf-devel] type 0 functions, splines |
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Date: |
Wed, 17 Oct 2007 22:44:38 +0200 |
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User-agent: |
Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.8 (Shijō) APEL/10.6 Emacs/23.0.50 (powerpc-unknown-linux-gnu) MULE/5.0 (SAKAKI) |
Cubic splines require the solution of a system of linear
equations. I am not sure if the spec intends this.
If true C2 continuity is not important and C1 continuity is
enough, I might use cubic hermite interpolation. This is only
slightly more complex than linear interpolation, using four
adjacent samples instead of two, and the
interpolated surface *looks* the same.
Does that method support 'm' dimensions? My understanding was that we
would need to use 2^m points to interpolate in the case of 'm' input
dimensions.
Does anybody know which kind of spline is used in acroread?
Not here. I dont think that information is public.