rainbow.h

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/**
 * This file was automatically created with "create_c++_header.sh".
 * Do not edit manually.
 */
#pragma once
#include "../../colormap.h"
 
namespace colormap
{
    namespace transform
    {
 
        class Rainbow : public Colormap
        {
        private:
            class Wrapper : public WrapperBase
            {
            public:
#ifdef float
#error "TODO"
#endif
#define float local_real_t
#include "../../../../shaders/glsl/transform_rainbow.frag"
#undef float
            };
 
        public:
            Color
            getColor(double x) const override
            {
                Wrapper w;
                vec4 c = w.colormap(x);
                Color result;
                result.r = std::max(0.0, std::min(1.0, c.r));
                result.g = std::max(0.0, std::min(1.0, c.g));
                result.b = std::max(0.0, std::min(1.0, c.b));
                result.a = std::max(0.0, std::min(1.0, c.a));
                return result;
            }
 
            std::string
            getTitle() const override
            {
                return std::string("rainbow");
            }
 
            std::string
            getCategory() const override
            {
                return std::string("transform");
            }
 
            std::string
            getSource() const override
            {
                return std::string("vec4 colormap(float x) {\n"
                                   "    float r = 0.0, g = 0.0, b = 0.0;\n"
                                   "\n"
                                   "    if (x < 0.0) {\n"
                                   "        r = 127.0 / 255.0;\n"
                                   "    } else if (x <= 1.0 / 9.0) {\n"
                                   "        r = 1147.5 * (1.0 / 9.0 - x) / 255.0;\n"
                                   "    } else if (x <= 5.0 / 9.0) {\n"
                                   "        r = 0.0;\n"
                                   "    } else if (x <= 7.0 / 9.0) {\n"
                                   "        r = 1147.5 * (x - 5.0 / 9.0) / 255.0;\n"
                                   "    } else {\n"
                                   "        r = 1.0;\n"
                                   "    }\n"
                                   "\n"
                                   "    if (x <= 1.0 / 9.0) {\n"
                                   "        g = 0.0;\n"
                                   "    } else if (x <= 3.0 / 9.0) {\n"
                                   "        g = 1147.5 * (x - 1.0 / 9.0) / 255.0;\n"
                                   "    } else if (x <= 7.0 / 9.0) {\n"
                                   "        g = 1.0;\n"
                                   "    } else if (x <= 1.0) {\n"
                                   "        g = 1.0 - 1147.5 * (x - 7.0 / 9.0) / 255.0;\n"
                                   "    } else {\n"
                                   "        g = 0.0;\n"
                                   "    }\n"
                                   "\n"
                                   "    if (x <= 3.0 / 9.0) {\n"
                                   "        b = 1.0;\n"
                                   "    } else if (x <= 5.0 / 9.0) {\n"
                                   "        b = 1.0 - 1147.5 * (x - 3.0 / 9.0) / 255.0;\n"
                                   "    } else {\n"
                                   "        b = 0.0;\n"
                                   "    }\n"
                                   "\n"
                                   "    return vec4(r, g, b, 1.0);\n"
                                   "}\n");
            }
        };
 
    } // namespace transform
} // namespace colormap