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LibPDF: Add first interpolation methods

Interpolation is needed in more than one place, and I couldn't find a
central place where I could borrow a readily available interpolation
routine, so I've implemented the first simple interpolation object. More
will follow for more complex scenarios.
This commit is contained in:
Rodrigo Tobar 2022-11-25 21:55:04 +08:00 committed by Andreas Kling
parent e818c955b3
commit 2331fe5e68
3 changed files with 63 additions and 0 deletions

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/*
* Copyright (c) 2022, Rodrigo Tobar <rtobarc@gmail.com>.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Span.h>
#include <AK/Vector.h>
namespace PDF {
class LinearInterpolation1D {
public:
LinearInterpolation1D(float x_min, float x_max, float y_min, float y_max);
float interpolate(float) const;
void interpolate(Span<float> const& x, Span<float> y) const;
private:
float m_x_min;
float m_y_min;
float m_slope;
};
}