Thanks for pointing this out, i did check the available packages before dwelling on this but i was focussed on the first part of the problem (spectrum to xyz).
The available convertColor() function is especially welcome that it was the most inefficient part of the code I produced yesterday. When I've cleaned up the spectrum_to_xyz() function, I'll ask the maintainers of colorspace if they want to include it. Many thanks, baptiste On 16 Mar 2009, at 07:42, Thomas Lumley wrote: > > The XYZ to RGB conversion is already in convertColor(), and also in > the colorspace package. > > -thomas > > > On Sun, 15 Mar 2009, baptiste auguie wrote: > >> I've put together a rough R port of that C code [*] in a package on >> r-forge: >> >> http://r-forge.r-project.org/plugins/scmsvn/viewcvs.php/pkg/spectral/?root=photonics >> >> http://r-forge.r-project.org/R/?group_id=160 ( package spectral, >> will be built >> overnight ) >> >> >> There is a lot of optimization and cleaning to do: it seems much >> slower than it >> should be, and the documentation is empty at the moment, but it >> reproduces the >> result for the black body radiation. > > Thomas Lumley Assoc. Professor, Biostatistics > tlum...@u.washington.edu University of Washington, Seattle > > _____________________________ Baptiste Auguié School of Physics University of Exeter Stocker Road, Exeter, Devon, EX4 4QL, UK Phone: +44 1392 264187 http://newton.ex.ac.uk/research/emag ______________________________ [[alternative HTML version deleted]]
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