InterpolationArray Class Reference

This class manages a set of (x_i,y_i) points, x_i must be sorted. More...

#include <interpolation_array.hpp>

Public Member Functions
void	clear ()
	Removes all saved values from this object.
int	push_back (float x, float y)
	Adds the value pair x/y to the list of all points.
unsigned int	size () const
	Returns the number of X/Y points.
float	getX (unsigned int i) const
	Returns the X value for a specified point.
float	getY (unsigned int i) const
	Returns the Y value for a specified point.
void	setY (unsigned int i, float y)
	Sets the Y value for a specified point.
float	get (float x) const
	Returns the interpolated Y value for a given x.
float	getReverse (float y) const
	Returns the X value necessary for a specified Y value.

Private Attributes
std::vector< float >	m_x
	The sorted x values.
std::vector< float >	m_y
	The y values.
std::vector< float >	m_delta

Detailed Description

This class manages a set of (x_i,y_i) points, x_i must be sorted.

Those values are then used to linearly interpolate the y value for a given x. If x is less than the minimum x_0, y_0 is returned, if x is more than the maximum x_n, y_n is returned.

Member Function Documentation

getReverse()

float InterpolationArray::getReverse ( float  y ) const

inline

Returns the X value necessary for a specified Y value.

If it's not possible to find a corresponding X (y is too small or too large), x_min or x_max is returned.

push_back()

int InterpolationArray::push_back ( float  x, float  y  )

inline

Adds the value pair x/y to the list of all points.

It is tested that the x values are added in order.

Parameters

x,y	The pair to add.

Returns

0 If the x values are not sorted, 1 otherwise.

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The documentation for this class was generated from the following file:

• utils/interpolation_array.hpp