52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
//
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// Created by LEI XU on 4/11/19.
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//
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#include "Triangle.hpp"
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#include <algorithm>
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#include <array>
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#include <stdexcept>
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Triangle::Triangle()
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{
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v[0] << 0, 0, 0;
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v[1] << 0, 0, 0;
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v[2] << 0, 0, 0;
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color[0] << 0.0, 0.0, 0.0;
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color[1] << 0.0, 0.0, 0.0;
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color[2] << 0.0, 0.0, 0.0;
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tex_coords[0] << 0.0, 0.0;
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tex_coords[1] << 0.0, 0.0;
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tex_coords[2] << 0.0, 0.0;
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}
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void Triangle::setVertex(int ind, Eigen::Vector3f ver) { v[ind] = ver; }
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void Triangle::setNormal(int ind, Vector3f n) { normal[ind] = n; }
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void Triangle::setColor(int ind, float r, float g, float b)
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{
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if ((r < 0.0) || (r > 255.) || (g < 0.0) || (g > 255.) || (b < 0.0) ||
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(b > 255.)) {
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throw std::runtime_error("Invalid color values");
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}
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color[ind] = Vector3f((float)r / 255., (float)g / 255., (float)b / 255.);
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return;
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}
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void Triangle::setTexCoord(int ind, float s, float t)
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{
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tex_coords[ind] = Vector2f(s, t);
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}
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std::array<Vector4f, 3> Triangle::toVector4() const
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{
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std::array<Vector4f, 3> res;
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std::transform(std::begin(v), std::end(v), res.begin(), [](auto& vec) {
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return Vector4f(vec.x(), vec.y(), vec.z(), 1.f);
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});
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return res;
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}
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