vec3d@test1 = hsvtorgb({0,0,0});
vec3d@test2 = hsvtorgb({1,1,1});
vec3d@test3 = hsvtorgb({5.8,1,1});
vec3d@test4 = hsvtorgb({-0.1,-0.5,10});
vec3d@test5 = hsvtorgb({-5.1,10.5,-5});
vec3d@test6 = hsvtorgb({-7,-11.5,5});
vec3d@test7 = hsvtorgb({0.5,0.5,0.5});
vec3d@test8 = hsvtorgb({0.3,1.0,10.0});
