#include <mplot/colour.h>

Colour naming

mplot::colour is a namespace full of (static constexpr) named colour definitions. Colours are specified as 3 element arrays representing red, green and blue channels. mplot::colour provides a list of pre-defined colours with a naming scheme that follows this web page:

http://www.cloford.com/resources/colours/500col.htm

Each colour is a constexpr std::array<float, 3> definition. Where a function takes a colour specification (such as in a VisualModel primitive) you can pass the named colour like this (using VisualModel::computeSphere as an example):

// Compute vertices for a mint green sphere
this->computeSphere (sphere_location, mplot::colour::mint);

I use the webpage to find a colour I want to use, and the names can be used directly as above. The entry corresponding to mplot::colour::mint is:

Image of the entry for the colour mint on the cloford.com colour web page

Here’s a selection of colours in a constexpr array defining a sequence for use in 6 graphs:

constexpr std::array<std::array<float, 3>, 6> clrs = {
    mplot::colour::crimson,
    mplot::colour::hotpink1,
    mplot::colour::maroon2,
    mplot::colour::orchid3,
    mplot::colour::darkorchid3,
    mplot::colour::purple2
};