NEWS for munsellinterpol package

Version 3.3-2 [2026-03-12]

• in the Soil Colors vignette, added Show/Hide buttons to some functions
• in the Soil Colors vignette, simplified the function soil_data()
• in the User Guide, added Pantone Color of the Year for 2026
• move data.frame on the Munsell books from private to public, and documented it
• added Glossy and Matte finish Munsell books to roundHVC()

Version 3.2-0 [2025-06-17]

• added new function: roundHVC()
• added new vignette: Soil Colors
• added arguments value and chroma to plotPatchesH()
• added argument coeffs to NickersonColorDifference()

Version 3.1-0 [2025-01-19]

• all logging now done with package logger, which is Imported
• updates to User Guide, including 3 new Pantone Colors of the Year
• in function xyYtoMunsell(), add new arguments rtol and atol

Version 3.0-0 [2022-04-08]

• for conversion functions not involving XYZ, ensure that an exact neutral converts to an exact neutral
• for conversion functions involving Lab and Luv, allow reference white to be assigned by name
• consistent handling of rownames in conversion function return values
• for functions LabtoMunsell and LuvtoMunsell changed t to T (old spelling is still supported for a limited time)
• to functions RGBtoMunsell() and MunsellToRGB(), added argument which
• in the User Guide, added 3 new Pantone Colors of the Year
• in links to other packages from man pages, added package names
• added hue circle figure to the PDF manual

Version 2.8-2 [2022-03-03]

• in one of the .Rd files, replaced <center> tag by the HTML5 equivalent
• removed some (possibly) invalid URLs

Version 2.7-1 [2021-12-09]

• fixed bibliography.bib to be compatible with pandoc v. 2.16.2
• fixed some stale URLs in bibliography.bib and man pages
• removed superfluous argument in a call to sprintf()

Changes for version 2.6-1 [2020-02-02]

• fixed error in a test regarding identical() vs all.equal() (related to noLD)
• suppressed warning from stats::regularize.values by adding argument ties=min to stats::splinefun()

Changes for version 2.5-1 [2019-07-20]

• in testing, allow limit of 5 failures in testOptimals(), which started happening on fedora platform (in addition to solaris)

Changes for version 2.4-1 [2019-05-16]

• restored missing .R files in folder /inst/doc

Changes for version 2.3-1 [2019-04-16]

• for the function IsWithinMacAdamLimits(), switched to a zonohedral representation of the color solids
• moved package rootSolve from dependency to import
• removed function xyz2srgb()
• removed dependency geometry
• removed folder demo

Changes for version 2.2-1 [2019-01-27]

• added fix to track a change in package spacesRGB
• added Color of the Year for 2019 to User Guide
• moved most startup code from .onAttach() to .onLoad()

Changes for version 2.1-3 [2018-07-22]

• added the Nickerson Color Difference formula
• refactored by putting XYZ-related functions in new package ‘spacesXYZ’
• added precomputed CATs for Illuminant D65 <-> Illuminant C (for sRGB <-> Munsell conversion)
• fixed issue with no long double (noLD) test

Changes for version 2.0.1 [2018-06-06]

• the 2 core functions: MunsellToxyY() and xyYtoMunsell() have been re-written, and have new options
• added function ColorBlockFromMunsell() for ISCC-NBS color names and centroids
• added functions plotLociHC() and plotPatchesH()
• added support for wide-gamut Adobe RGB
• added support for user-defined RGB spaces
• improved set of optimal xyY’s for Illuminant C
• new munsellinterpol User Guide
• 2 new vignettes
• Imports package rootSolve, for the inverse mapping xyY -> HVC
• added extensive test suite