hk.skriptose.sampleimage

Class MathUtils

java.lang.Object

hk.skriptose.sampleimage.MathUtils

public final class MathUtils
extends java.lang.Object

Helper class to perform math computations.

Constructor Summary

Constructors

Constructor and Description
MathUtils()

Method Summary

Modifier and Type	Method and Description
protected static float	getRectRatio(android.graphics.RectF rect) Computes the aspect ratio of a given rect.
protected static boolean	haveSameAspectRatio(android.graphics.RectF r1, android.graphics.RectF r2) Checks whether two RectF have the same aspect ratio.
protected static float	truncate(float f, int decimalPlaces) Truncates a float number f to decimalPlaces.

Methods inherited from class java.lang.Object

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

Constructor Detail

MathUtils

public MathUtils()

Method Detail

truncate

protected static float truncate(float f,
                                int decimalPlaces)

Truncates a float number f to decimalPlaces.

Parameters:

f - the number to be truncated.

decimalPlaces - the amount of decimals that f will be truncated to.

Returns:

a truncated representation of f.

haveSameAspectRatio

protected static boolean haveSameAspectRatio(android.graphics.RectF r1,
                                             android.graphics.RectF r2)

Checks whether two RectF have the same aspect ratio.

Parameters:

r1 - the first rect.

r2 - the second rect.

Returns:

true if both rectangles have the same aspect ratio, false otherwise.

getRectRatio

protected static float getRectRatio(android.graphics.RectF rect)

Computes the aspect ratio of a given rect.

Parameters:

rect - the rect to have its aspect ratio computed.

Returns:

the rect aspect ratio.