funworld
Class OverlayImagesXY

java.lang.Object
  funworld.WorldImage
      funworld.OverlayImagesXY

Direct Known Subclasses:

OverlayImages

public class OverlayImagesXY
extends WorldImage

The class to represent an overlay of the top image on the bottom one with the top offset by the given dx and dy combined into WorldImage to be drawn by the World when drawing on its Canvas.

Since:

February 4 2012

Author:

Viera K. Proulx

Field Summary

WorldImage	bot the bottom image for the combined image
int	dx the horizontal offset for the top image
int	dy the vertical offset for the top image
WorldImage	top the top image for the combined image

Fields inherited from class funworld.WorldImage

color, pinhole

Constructor Summary

OverlayImagesXY(WorldImage bot, WorldImage top, int dx, int dy)
The full constructor that produces the top image overlaid over the bottom one with the given offset.

Method Summary

int	getHeight() Produce the height of this image
int	getWidth() Produce the width of this image
WorldImage	movePinhole(int ddx, int ddy) Produce the overlay of images with the pinhole moved by the given (dx, dy)
WorldImage	moveTo(geometry.Posn p) Produce the overlay of images with the pinhole moved to the given location

Methods inherited from class funworld.WorldImage

overlayImages

Methods inherited from class java.lang.Object

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

Field Detail

bot

public WorldImage bot

the bottom image for the combined image

top

public WorldImage top

the top image for the combined image

dx

public int dx

the horizontal offset for the top image

dy

public int dy

the vertical offset for the top image

Constructor Detail

OverlayImagesXY

public OverlayImagesXY(WorldImage bot,
                       WorldImage top,
                       int dx,
                       int dy)

The full constructor that produces the top image overlaid over the bottom one with the given offset.

Parameters:

bot - the bottom image for the combined image

top - the bottom image for the combined image

dx - the horizontal offset for the top image

dy - the vertical offset for the top image

Method Detail

movePinhole

public WorldImage movePinhole(int ddx,
                              int ddy)

Produce the overlay of images with the pinhole moved by the given (dx, dy)

Specified by:

movePinhole in class WorldImage

Parameters:

ddx - the horizontal offset

ddy - the vertical offset

moveTo

public WorldImage moveTo(geometry.Posn p)

Produce the overlay of images with the pinhole moved to the given location

Specified by:

moveTo in class WorldImage

Parameters:

p - the given location

getWidth

public int getWidth()

Produce the width of this image

Specified by:

getWidth in class WorldImage

Returns:

the width of this image

getHeight

public int getHeight()

Produce the height of this image

Specified by:

getHeight in class WorldImage

Returns:

the height of this image