clipTriangleAtAxisAlignedThreshold.h

#pragma once
 
#include <glm/glm.hpp>
 
#include <variant>
#include <vector>
 
namespace CesiumGeometry {
 
struct InterpolatedVertex {
  int first;
 
  int second;
 
  double t;
 
  constexpr bool operator==(const InterpolatedVertex& other) const noexcept {
    return this->first == other.first && this->second == other.second &&
           std::fabs(this->t - other.t) <=
               std::numeric_limits<double>::epsilon();
  }
 
  constexpr bool operator!=(const InterpolatedVertex& other) const noexcept {
    return !(*this == other);
  }
};
 
using TriangleClipVertex = std::variant<int, InterpolatedVertex>;
 
void clipTriangleAtAxisAlignedThreshold(
    double threshold,
    bool keepAbove,
    int i0,
    int i1,
    int i2,
    double u0,
    double u1,
    double u2,
    std::vector<TriangleClipVertex>& result) noexcept;
} // namespace CesiumGeometry