// This file is part of HDRip.
//
// HDRip is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// HDRip 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with HDRip. If not, see .
//
// HDRip project
// Author : Rémi Synave
// Contact : remi.synave@univ-littoral.fr
#include "pch.h"
#include "YCurve.hpp"
#include
#include
YCurve::YCurve(const float s, const float b, const float m, const float w, const float h, const float maxChannelY)
{
max = maxChannelY;
Eigen::RowVectorXf knots(10);
knots << 0.0f, 0.0f, 0.0f, 0.2f, 0.4f, 0.6f, 0.8f, 1.0f, 1.0f, 1.0f;
Eigen::MatrixXf ctrls(7, 2);
ctrls << 0, 0,
10, s,
30, b,
50, m,
70, w,
90, h,
max, 100;
ctrls.transposeInPlace();
spline = Eigen::Spline(knots, ctrls);
}
Eigen::MatrixXf* YCurve::evalpts(unsigned int nb)
{
Eigen::MatrixXf* pts = new Eigen::MatrixXf(nb, 2);
float delta = 1.0f / (nb - 1.0f);
unsigned int i;
float step;
for (i = 0, step = 0; i < nb; i++, step += delta)
{
//Peut mieux faire en récupérant spline(step) dans une variable pour éviter de relancer le calcul
Eigen::Spline::PointType estim = spline(i * delta);
(*pts)(i, 0) = estim[0];
(*pts)(i, 1) = estim[1];
}
return pts;
}