edu.stanford.hci.r3.units
Class Pixels

java.lang.Object
  edu.stanford.hci.r3.units.Units
      edu.stanford.hci.r3.units.Pixels

All Implemented Interfaces:

java.lang.Cloneable

public class Pixels
extends Units

Represents a screen based unit. This depends on the Pixels Per Inch of the screen, of course.

This software is distributed under the BSD License.

Field Summary

static java.lang.String	CONFIG_FILE_KEY The Key to access the configuration file for Pixels.
static java.lang.String	CONFIG_FILE_VALUE
static Pixels	ONE The Identity Element representing one Pixel on a "default" screen at a default pixelsPerInch.

Fields inherited from class edu.stanford.hci.r3.units.Units

POINTS_PER_INCH

Constructor Summary

Pixels()
One little square on your monitor, containing a color.

Pixels(double numPixels)

Pixels(double numPixels, double pixPerInch)

Method Summary

protected double	getNumberOfUnitsInOneInch()
double	getPixelsPerInch()
static Pixels	getPixelsPerInchObject(int ppi)

Methods inherited from class edu.stanford.hci.r3.units.Units

add, clone, equals, getConversionTo, getCopy, getUnitName, getUnitsObjectOfSameLengthIn, getUnitsObjectOfSameTypeWithValue, getValue, getValueIn, getValueInCentimeters, getValueInInches, getValueInMillimeters, getValueInPatternDots, getValueInPixels, getValueInPoints, subtract, toInches, toPixels, toPoints, toString

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

CONFIG_FILE_KEY

public static final java.lang.String CONFIG_FILE_KEY

The Key to access the configuration file for Pixels.

See Also:

Constant Field Values

CONFIG_FILE_VALUE

public static final java.lang.String CONFIG_FILE_VALUE

See Also:

Constant Field Values

ONE

public static final Pixels ONE

The Identity Element representing one Pixel on a "default" screen at a default pixelsPerInch.

Constructor Detail

Pixels

public Pixels()

One little square on your monitor, containing a color. =)

Pixels

public Pixels(double numPixels)

Parameters:

numPixels -

Pixels

public Pixels(double numPixels,
              double pixPerInch)

Parameters:

numPixels -

Method Detail

getPixelsPerInchObject

public static Pixels getPixelsPerInchObject(int ppi)

Parameters:

ppi -

Returns:

getNumberOfUnitsInOneInch

protected double getNumberOfUnitsInOneInch()

Specified by:

getNumberOfUnitsInOneInch in class Units

Returns:

how many of these units fit in one inch.

See Also:

Units.getNumberOfUnitsInOneInch()

getPixelsPerInch

public double getPixelsPerInch()

Returns:

how many pixels per inch shall we use to interpret this value?