org.oscim.renderer.light

Class Sun

java.lang.Object

org.oscim.renderer.light.Sun

public class Sun
extends java.lang.Object

See https://lexikon.astronomie.info/zeitgleichung

Field Summary

Fields

Modifier and Type	Field and Description
static float	SHADOW_ALPHA

Constructor Summary

Constructors

Constructor and Description
Sun() Track sun position (accuracy of ~1 minute).

Method Summary

Modifier and Type	Method and Description
int	getColor() RGB - the color of sun.
java.util.Map<java.lang.Float,java.lang.Integer>	getColorMap() Get the colors of day cycle.
float	getLatitude()
float	getLongitude()
float[]	getPosition()
float	getProgress()
float	getSunrise()
float	getSunset()
void	setColor(int color)
void	setColorMap(java.util.Map<java.lang.Float,java.lang.Integer> colorMap) Set the colors of day cycle.
void	setCoordinates(float latitude, float longitude)
void	setDayOfYear(int day) Customize day of the year.
void	setPosition(float x, float y, float z)
void	setProgress(float progress) Customize progress.
float	setProgress(int hour, int minute, int second) Customize progress with specified time.
void	update() Update sun progress, position and color to current date time.
int	updateColor()
float[]	updatePosition() Very simple normalized sun coordinates.
float	updateProgress() The progress of the daylight in range 0 (sunrise) to 1 (sunset) and of the night in range 1 (sunset) to 2 (sunrise).
void	updateToDay() Calculate the sunrise and sunset of set day (local time).

Methods inherited from class java.lang.Object

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

Field Detail

SHADOW_ALPHA

public static float SHADOW_ALPHA

Constructor Detail

Sun

public Sun()

Track sun position (accuracy of ~1 minute).

Method Detail

getColor

public int getColor()

RGB - the color of sun. A - the diffuse of shadow.

getColorMap

public java.util.Map<java.lang.Float,java.lang.Integer> getColorMap()

Get the colors of day cycle.

Returns:

the color map

getLatitude

public float getLatitude()

getLongitude

public float getLongitude()

getPosition

public float[] getPosition()

getProgress

public float getProgress()

getSunrise

public float getSunrise()

Returns:

the local sunrise time in hours.

getSunset

public float getSunset()

Returns:

the local sunset time in hours.

setColor

public void setColor(int color)

Parameters:

color - RGB - the color of sun, A - the diffuse of shadow

setColorMap

public void setColorMap(java.util.Map<java.lang.Float,java.lang.Integer> colorMap)

Set the colors of day cycle.

setCoordinates

public void setCoordinates(float latitude,
                           float longitude)

setDayOfYear

public void setDayOfYear(int day)

Customize day of the year.

setPosition

public void setPosition(float x,
                        float y,
                        float z)

setProgress

public void setProgress(float progress)

Customize progress.

setProgress

public float setProgress(int hour,
                         int minute,
                         int second)

Customize progress with specified time.

Parameters:

hour - the hour [0..23]

minute - the minute [0..59]

second - the second [0..59]

Returns:

the progress in range 0 to 2

update

public void update()

Update sun progress, position and color to current date time.

updateColor

public int updateColor()

updatePosition

public float[] updatePosition()

Very simple normalized sun coordinates.

updateProgress

public float updateProgress()

The progress of the daylight in range 0 (sunrise) to 1 (sunset) and of the night in range 1 (sunset) to 2 (sunrise).

Returns:

the progress in range 0 to 2

updateToDay

public void updateToDay()

Calculate the sunrise and sunset of set day (local time).