org.hipparchus.analysis.interpolation

Class InterpolatingMicrosphere2D

java.lang.Object

org.hipparchus.analysis.interpolation.InterpolatingMicrosphere

org.hipparchus.analysis.interpolation.InterpolatingMicrosphere2D

public class InterpolatingMicrosphere2D
extends InterpolatingMicrosphere

Utility class for the MicrosphereProjectionInterpolator algorithm. For 2D interpolation, this class constructs the microsphere as a series of evenly spaced facets (rather than generating random normals as in the base implementation).

Constructor Summary

Constructors

Modifier	Constructor and Description
	InterpolatingMicrosphere2D(int size, double maxDarkFraction, double darkThreshold, double background) Create a sphere from vectors regularly sampled around a circle.
protected	InterpolatingMicrosphere2D(InterpolatingMicrosphere2D other) Copy constructor.

Method Summary

Modifier and Type	Method and Description
InterpolatingMicrosphere2D	copy() Perform a copy.

Methods inherited from class org.hipparchus.analysis.interpolation.InterpolatingMicrosphere

add, getDimension, getSize, value

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

InterpolatingMicrosphere2D

public InterpolatingMicrosphere2D(int size,
                                  double maxDarkFraction,
                                  double darkThreshold,
                                  double background)

Create a sphere from vectors regularly sampled around a circle.

Parameters:

size - Number of surface elements of the sphere.

maxDarkFraction - Maximum fraction of the facets that can be dark. If the fraction of "non-illuminated" facets is larger, no estimation of the value will be performed, and the background value will be returned instead.

darkThreshold - Value of the illumination below which a facet is considered dark.

background - Value returned when the maxDarkFraction threshold is exceeded.

Throws:

MathIllegalArgumentException - if size <= 0.

MathIllegalArgumentException - if darkThreshold < 0.

MathIllegalArgumentException - if maxDarkFraction does not belong to the interval [0, 1].

InterpolatingMicrosphere2D

protected InterpolatingMicrosphere2D(InterpolatingMicrosphere2D other)

Copy constructor.

Parameters:

other - Instance to copy.

Method Detail

copy

public InterpolatingMicrosphere2D copy()

Perform a copy.

Overrides:

copy in class InterpolatingMicrosphere

Returns:

a copy of this instance.