SpreadAlgorithm.h

/* Copyright (c) 2020,  Queen's Printer for Ontario */
/* Copyright (c) His Majesty the King in Right of Canada as represented by the Minister of Natural Resources, 2024-2025. */
 
/* SPDX-License-Identifier: AGPL-3.0-or-later */
 
#include "stdafx.h"
#include "InnerPos.h"
 
namespace fs
{
using HorizontalAdjustment = std::function<MathSize(MathSize)>;
 
HorizontalAdjustment horizontal_adjustment(
  const AspectSize slope_azimuth,
  const SlopeSize slope);
 
class SpreadAlgorithm
{
public:
  [[nodiscard]] virtual OffsetSet calculate_offsets(
    HorizontalAdjustment correction_factor,
    MathSize tfc,
    MathSize head_raz,
    MathSize head_ros,
    MathSize back_ros,
    MathSize length_to_breadth) const
    noexcept = 0;
};
 
class BaseSpreadAlgorithm
  : public SpreadAlgorithm
{
public:
  BaseSpreadAlgorithm(const MathSize max_angle,
                      const MathSize cell_size,
                      const MathSize min_ros)
    : max_angle_(max_angle), cell_size_(cell_size), min_ros_(min_ros)
  {
  }
protected:
  MathSize max_angle_;
  MathSize cell_size_;
  MathSize min_ros_;
};
 
class OriginalSpreadAlgorithm
  : public BaseSpreadAlgorithm
{
public:
  using BaseSpreadAlgorithm::BaseSpreadAlgorithm;
  [[nodiscard]] OffsetSet calculate_offsets(
    HorizontalAdjustment correction_factor,
    MathSize tfc,
    MathSize head_raz,
    MathSize head_ros,
    MathSize back_ros,
    MathSize length_to_breadth) const noexcept override;
};
 
class WidestEllipseAlgorithm
  : public BaseSpreadAlgorithm
{
public:
  using BaseSpreadAlgorithm::BaseSpreadAlgorithm;
  [[nodiscard]] OffsetSet calculate_offsets(
    HorizontalAdjustment correction_factor,
    MathSize tfc,
    MathSize head_raz,
    MathSize head_ros,
    MathSize back_ros,
    MathSize length_to_breadth) const noexcept override;
};
}