GroundOverlayOptions

Defines options for a ground overlay.

Constant Summary

float NO_DIMENSION Flag for when no dimension is specified for the height.

Inherited Constant Summary

From interface android.os.Parcelable

int	CONTENTS_FILE_DESCRIPTOR
int	PARCELABLE_WRITE_RETURN_VALUE

Public Constructor Summary

GroundOverlayOptions()

Creates a new set of ground overlay options.

Public Method Summary

GroundOverlayOptions	anchor(float u, float v) Specifies the anchor.
GroundOverlayOptions	bearing(float bearing) Specifies the bearing of the ground overlay in degrees clockwise from north.
GroundOverlayOptions	clickable(boolean clickable) Specifies whether the ground overlay is clickable.
float	getAnchorU() Horizontal relative anchor; `0.0` and `1.0` denote left and right edges respectively.
float	getAnchorV() Vertical relative anchor; `0.0` and `1.0` denote top and bottom edges respectively.
float	getBearing() Gets the bearing set for this `GroundOverlayOptions` object.
LatLngBounds	getBounds() Gets the bounds set for this `GroundOverlayOptions` object.
float	getHeight() Gets the height set for this `GroundOverlayOptions` object.
BitmapDescriptor	getImage() Gets the image descriptor set for this `GroundOverlayOptions` object.
LatLng	getLocation() Gets the location set for this `GroundOverlayOptions` object.
float	getTransparency() Gets the transparency set for this `GroundOverlayOptions` object.
float	getWidth() Gets the width set for this `GroundOverlayOptions` object.
float	getZIndex() Gets the zIndex set for this `GroundOverlayOptions` object.
GroundOverlayOptions	image(BitmapDescriptor imageDescriptor) Specifies the image for this ground overlay.
boolean	isClickable() Gets the clickability setting for this `GroundOverlayOptions` object.
boolean	isVisible() Gets the visibility setting for this `GroundOverlayOptions` object.
GroundOverlayOptions	position(LatLng location, float width) Specifies the position for this ground overlay using an anchor point (a `LatLng`) and the width (in meters).
GroundOverlayOptions	position(LatLng location, float width, float height) Specifies the position for this ground overlay using an anchor point (a `LatLng`), width and height (both in meters).
GroundOverlayOptions	positionFromBounds(LatLngBounds bounds) Specifies the position for this ground overlay.
GroundOverlayOptions	transparency(float transparency) Specifies the transparency of the ground overlay.
GroundOverlayOptions	visible(boolean visible) Specifies the visibility for the ground overlay.
void	writeToParcel(Parcel out, int flags)
GroundOverlayOptions	zIndex(float zIndex) Specifies the ground overlay's zIndex, i.e., the order in which it will be drawn.

Inherited Method Summary

From class java.lang.Object

Object	clone()
boolean	equals(Object arg0)
void	finalize()
final Class<?>	getClass()
int	hashCode()
final void	notify()
final void	notifyAll()
String	toString()
final void	wait(long arg0, int arg1)
final void	wait(long arg0)
final void	wait()

From interface android.os.Parcelable

abstract int	describeContents()
abstract void	writeToParcel(Parcel arg0, int arg1)

Constants

public static final float NO_DIMENSION

Flag for when no dimension is specified for the height.

Constant Value: -1.0

Public Constructors

public GroundOverlayOptions ()

Creates a new set of ground overlay options.

Public Methods

public GroundOverlayOptions anchor (float u, float v)

Specifies the anchor.

The anchor aligns with the ground overlay's location.

The anchor point is specified in 2D continuous space where (0,0), (1,0), (0,1) and (1,1) denote the top-left, top-right, bottom-left and bottom-right corners respectively.

 *-----+-----+-----+-----*
 |     |     |     |     |
 |     |     |     |     |
 +-----+-----+-----+-----+
 |     |     |   X |     |   (U, V) = (0.7, 0.6)
 |     |     |     |     |
 *-----+-----+-----+-----*

Parameters

u	u-coordinate of the anchor
v	v-coordinate of the anchor

Returns

this GroundOverlayOptions object with a new anchor set.

public GroundOverlayOptions bearing (float bearing)

Specifies the bearing of the ground overlay in degrees clockwise from north. The rotation is performed about the anchor point. If not specified, the default is 0 (i.e., up on the image points north).

Note that latitude-longitude bound applies before the rotation.

Parameters

bearing	the bearing in degrees clockwise from north. Values outside the range [0, 360) will be normalized.

Returns

this GroundOverlayOptions object with a new bearing set.

public GroundOverlayOptions clickable (boolean clickable)

Specifies whether the ground overlay is clickable. The default clickability is false.

Parameters

clickable	The new clickability setting.

Returns

this GroundOverlayOptions object with a new clickability setting.

public float getAnchorU ()

Horizontal relative anchor; 0.0 and 1.0 denote left and right edges respectively. Other anchor values are interpolated accordingly.

Returns

the horizontal edge-relative anchor location.

public float getAnchorV ()

Vertical relative anchor; 0.0 and 1.0 denote top and bottom edges respectively. Other anchor values are interpolated accordingly.

Returns

the vertical edge-relative anchor location.

public float getBearing ()

Gets the bearing set for this GroundOverlayOptions object.

Returns

the bearing of the ground overlay.

public LatLngBounds getBounds ()

Gets the bounds set for this GroundOverlayOptions object.

Returns

the bounds of the ground overlay. This will be null if the position was set using position(LatLng, float) or position(LatLng, float, float)

public float getHeight ()

Gets the height set for this GroundOverlayOptions object.

Returns

the height of the ground overlay.

public BitmapDescriptor getImage ()

Gets the image descriptor set for this GroundOverlayOptions object.

Returns

A BitmapDescriptor representing the image of the ground overlay.

public LatLng getLocation ()

Gets the location set for this GroundOverlayOptions object.

Returns

the location to place the anchor of the ground overlay. This will be null if the position was set using positionFromBounds(LatLngBounds).

public float getTransparency ()

Gets the transparency set for this GroundOverlayOptions object.

Returns

the transparency of the ground overlay.

public float getWidth ()

Gets the width set for this GroundOverlayOptions object.

Returns

the width of the ground overlay.

public float getZIndex ()

Gets the zIndex set for this GroundOverlayOptions object.

Returns

the zIndex of the ground overlay.

public GroundOverlayOptions image (BitmapDescriptor imageDescriptor)

Specifies the image for this ground overlay.

To load an image as a texture (which is used to draw the image on a map), it must be converted into an image with sides that are powers of two. This is so that a mipmap can be created in order to render the texture at various zoom levels - see Mipmap (Wikipedia) for details. Hence, to conserve memory by avoiding this conversion, it is advised that the dimensions of the image are powers of two.

Parameters

imageDescriptor	the `BitmapDescriptor` to use for this ground overlay

Returns

this GroundOverlayOptions object with a new image set.

public boolean isClickable ()

Gets the clickability setting for this GroundOverlayOptions object.

Returns

true if the ground overlay is clickable; false if it is not.

public boolean isVisible ()

Gets the visibility setting for this GroundOverlayOptions object.

Returns

true if this ground overlay is visible; false if it is not.

public GroundOverlayOptions position (LatLng location, float width)

Specifies the position for this ground overlay using an anchor point (a LatLng) and the width (in meters). The height will be adapted accordingly to preserve aspect ratio.

Parameters

location	the location on the map `LatLng` to which the anchor point in the given image will remain fixed. The anchor will remain fixed to the position on the ground when transformations are applied (e.g., setDimensions, setBearing, etc.).
width	the width of the overlay (in meters). The height will be determined automatically based on the image aspect ratio.

Returns

this GroundOverlayOptions object with a new position set.

Throws

IllegalArgumentException	if anchor is `null`
IllegalArgumentException	if width is negative
IllegalStateException	if the position was already set using `positionFromBounds(LatLngBounds)`

public GroundOverlayOptions position (LatLng location, float width, float height)

Specifies the position for this ground overlay using an anchor point (a LatLng), width and height (both in meters). When rendered, the image will be scaled to fit the dimensions specified.

Parameters

location	the location on the map `LatLng` to which the anchor point in the given image will remain fixed. The anchor will remain fixed to the position on the ground when transformations are applied (e.g., setDimensions, setBearing, etc.).
width	the width of the overlay (in meters)
height	the height of the overlay (in meters)

Returns

this GroundOverlayOptions object with a new position set.

Throws

IllegalArgumentException	if anchor is `null`
IllegalArgumentException	if width or height are negative
IllegalStateException	if the position was already set using `positionFromBounds(LatLngBounds)`

public GroundOverlayOptions positionFromBounds (LatLngBounds bounds)

Specifies the position for this ground overlay.

Parameters

bounds	a `LatLngBounds` in which to place the ground overlay

Returns

this GroundOverlayOptions object with a new position set.

Throws

IllegalStateException	if the position was already set using `position(LatLng, float)` or `position(LatLng, float, float)`

public GroundOverlayOptions transparency (float transparency)

Specifies the transparency of the ground overlay. The default transparency is 0 (opaque).

Parameters

transparency	a float in the range `[0..1]` where `0` means that the ground overlay is opaque and `1` means that the ground overlay is transparent.

Returns

this GroundOverlayOptions object with a new transparency setting.

Throws

IllegalArgumentException	if the transparency is outside the range [0..1].

public GroundOverlayOptions visible (boolean visible)

Specifies the visibility for the ground overlay. The default visibility is true.

Returns

this GroundOverlayOptions object with a new visibility setting.

public void writeToParcel (Parcel out, int flags)

public GroundOverlayOptions zIndex (float zIndex)

Specifies the ground overlay's zIndex, i.e., the order in which it will be drawn. See the documentation at the top of this class for more information about zIndex.

Returns

this GroundOverlayOptions object with a new zIndex set.