On 2012-08-12 00:22-0500 Maurice LeBrun wrote: > Here is the behavior I see on a plplot build (a bit old but none of this stuff > has changed recently AFAIK). BTW H=120 is green, blue is H=240. Cf. > http://en.wikipedia.org/wiki/HLS_color_space > > Using a Hue range of {0,120} gives a Red - Yellow - Green shading. > Using a Hue range of {120,0} gives a Green - Yellow - Red shading. > > Selecting rev=1 causes the interpolation to go around "the back side" of the > color wheel, yielding in the latter case Green - Cyan - Blue - Magenta - Red. > > So from my perspective it's working as expected, aside from the "rev" misnomer > ("back" or "wrap" would've been better -- my bad).
The name of that argument can be changed without causing an API disruption so if we can come up with a name that is a lot better, I would encourage a patch making the change (and also the associated change to the documentation). But I am not sure "back" or "wrap" are a _lot_ better than "rev". Just to throw another possibility into the pot and get some discussion going about the ideal name, how about "large" or "larger_angle" (for the choice of range corresponding to the larger hue angles). I also thought of cc (for counter-clockwise), but that is a similar misnomer to rev. Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.sf.net); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
