closest_point_on_curve.h

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/*
  Copyright (C) 2018-2024 by the authors of the World Builder code.

  This file is part of the World Builder.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as published
   by the Free Software Foundation, either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/

#ifndef WORLD_BUILDER_OBJECTS_CLOSEST_POINT_ON_CURVE_H
#define WORLD_BUILDER_OBJECTS_CLOSEST_POINT_ON_CURVE_H


#include "world_builder/point.h"
#include "world_builder/nan.h"

//using namespace WorldBuilder;

namespace WorldBuilder
{
  namespace Objects
  {


    struct ClosestPointOnCurve
    {
      ClosestPointOnCurve()
        :
        distance(std::numeric_limits<double>::infinity()),
        parametric_fraction(NaN::DSNAN),
        interpolation_fraction(NaN::DSNAN),
        index(0),
        point(Point<2>(NaN::DQNAN,NaN::DQNAN,CoordinateSystem::invalid)),
        normal(Point<2>(NaN::DSNAN,NaN::DSNAN,CoordinateSystem::invalid))
      {}

      double distance;
      double parametric_fraction;
      double interpolation_fraction;
      size_t index;
      Point<2> point;
      Point<2> normal;
    };
  }
}
#endif