/usr/include/libnoise/module/scalebias.h is in libnoise-dev 1.0.0+repack-1.
This file is owned by root:root, with mode 0o644.
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//
// Copyright (C) 2003, 2004 Jason Bevins
//
// This library 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 2.1 of the License, or (at
// your option) any later version.
//
// This library 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 (COPYING.txt) for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this library; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// The developer's email is jlbezigvins@gmzigail.com (for great email, take
// off every 'zig'.)
//
#ifndef NOISE_MODULE_SCALEBIAS_H
#define NOISE_MODULE_SCALEBIAS_H
#include "modulebase.h"
namespace noise
{
namespace module
{
/// @addtogroup libnoise
/// @{
/// @addtogroup modules
/// @{
/// @addtogroup modifiermodules
/// @{
/// Default bias for the noise::module::ScaleBias noise module.
const double DEFAULT_BIAS = 0.0;
/// Default scale for the noise::module::ScaleBias noise module.
const double DEFAULT_SCALE = 1.0;
/// Noise module that applies a scaling factor and a bias to the output
/// value from a source module.
///
/// @image html modulescalebias.png
///
/// The GetValue() method retrieves the output value from the source
/// module, multiplies it with a scaling factor, adds a bias to it, then
/// outputs the value.
///
/// This noise module requires one source module.
class ScaleBias: public Module
{
public:
/// Constructor.
///
/// The default bias is set to noise::module::DEFAULT_BIAS.
///
/// The default scaling factor is set to noise::module::DEFAULT_SCALE.
ScaleBias ();
/// Returns the bias to apply to the scaled output value from the
/// source module.
///
/// @returns The bias to apply.
///
/// The GetValue() method retrieves the output value from the source
/// module, multiplies it with the scaling factor, adds the bias to
/// it, then outputs the value.
double GetBias () const
{
return m_bias;
}
/// Returns the scaling factor to apply to the output value from the
/// source module.
///
/// @returns The scaling factor to apply.
///
/// The GetValue() method retrieves the output value from the source
/// module, multiplies it with the scaling factor, adds the bias to
/// it, then outputs the value.
double GetScale () const
{
return m_scale;
}
virtual int GetSourceModuleCount () const
{
return 1;
}
virtual double GetValue (double x, double y, double z) const;
/// Sets the bias to apply to the scaled output value from the source
/// module.
///
/// @param bias The bias to apply.
///
/// The GetValue() method retrieves the output value from the source
/// module, multiplies it with the scaling factor, adds the bias to
/// it, then outputs the value.
void SetBias (double bias)
{
m_bias = bias;
}
/// Sets the scaling factor to apply to the output value from the
/// source module.
///
/// @param scale The scaling factor to apply.
///
/// The GetValue() method retrieves the output value from the source
/// module, multiplies it with the scaling factor, adds the bias to
/// it, then outputs the value.
void SetScale (double scale)
{
m_scale = scale;
}
protected:
/// Bias to apply to the scaled output value from the source module.
double m_bias;
/// Scaling factor to apply to the output value from the source
/// module.
double m_scale;
};
/// @}
/// @}
/// @}
}
}
#endif
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