SGInterpTable Class Reference

A class that provids a simple linear 2d interpolation lookup table. More...

Inheritance diagram for SGInterpTable:

Public Member Functions
	SGInterpTable ()
	Constructor.
	SGInterpTable (const SGPropertyNode *interpolation)
	Constructor.
	SGInterpTable (const string &file)
	Constructor.
void	addEntry (double ind, double dep)
	Add an entry to the table, extending the table's length.
double	interpolate (double x) const
	Given an x value, linearly interpolate the y value from the table.
	~SGInterpTable ()
	Destructor.

Detailed Description

A class that provids a simple linear 2d interpolation lookup table.

The actual table is expected to be loaded from a file. The independant variable must be strictly ascending. The dependent variable can be anything.

Definition at line 53 of file interpolater.hxx.

SGInterpTable::SGInterpTable ( )

Constructor.

Creates a new, empty table.

Definition at line 44 of file interpolater.cxx.

SGInterpTable::SGInterpTable ( const SGPropertyNode * interpolation )

Constructor.

Loads the interpolation table from an interpolation property node.

Parameters:

interpolation

property node having entry children

Definition at line 48 of file interpolater.cxx.

SGInterpTable::SGInterpTable ( const string & file )

Constructor.

Loads the interpolation table from the specified file.

Parameters:

file

name of interpolation file

Definition at line 60 of file interpolater.cxx.

void SGInterpTable::addEntry	(	double	ind,
		double	dep
	)

Add an entry to the table, extending the table's length.

Parameters:

	ind	The independent variable.
	dep	The dependent variable.

Definition at line 81 of file interpolater.cxx.

double SGInterpTable::interpolate ( double x ) const

Given an x value, linearly interpolate the y value from the table.

Parameters:

x

independent variable

Definition at line 87 of file interpolater.cxx.

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