I'm interesting in "zcoloring" funciton in colorscheme option.
I wrote simple programm which compares two results: spectrogram of signal drawn with "colormap" list and spectrogram which was plotted with zcoloring function. I use red, green, blue functions to construct JET-colormap: list and expressions in "zcoloring".
As I understand, when I use:
colorscheme = ["zcoloring", [z-> Red color function(z), z-> Green color function(z), z-> Blue color function(z)], colorspace = "RGB"]
Maple plots z-value with color RGB color coordinates defined from "zcoloring". For example, if "zcoloring" is
colorscheme = ["zcoloring", [z-> 5*z, z-> 3*z, z-> 2*z], colorspace = "RGB"]
and z value is 10, then 10 value will correspond [50,30,20]-RGB color.
My test program:
Spectrogram of my test signal: