Inheritance diagram for com.google.appinventor.components.runtime.Circle:

Public Member Functions
	Circle (MapFactory.MapFeatureContainer container)

String	Type ()

void	Radius (double radius)

double	Radius ()

void	Latitude (double latitude)

double	Latitude ()

void	Longitude (double longitude)

double	Longitude ()

void	SetLocation (double latitude, double longitude)

void	updateCenter (double latitude, double longitude)

Public Member Functions inherited from com.google.appinventor.components.runtime.PolygonBase
	PolygonBase (MapFactory.MapFeatureContainer container, MapFeatureVisitor< Double > distanceComputation)

Public Member Functions inherited from com.google.appinventor.components.runtime.MapFeatureBaseWithFill
	MapFeatureBaseWithFill (MapFactory.MapFeatureContainer container, MapFeatureVisitor< Double > distanceComputation)

void	FillColor (int argb)

int	FillColor ()

void	FillOpacity (float opacity)

float	FillOpacity ()

Public Member Functions inherited from com.google.appinventor.components.runtime.MapFeatureBase
void	setMap (MapFactory.MapFeatureContainer container)

void	removeFromMap ()

void	Visible (boolean visibility)

boolean	Visible ()

void	StrokeColor (int argb)

int	StrokeColor ()

void	StrokeOpacity (float opacity)

float	StrokeOpacity ()

void	StrokeWidth (int width)

int	StrokeWidth ()

void	Draggable (boolean draggable)

boolean	Draggable ()

void	Title (String title)

String	Title ()

void	Description (String description)

String	Description ()

void	EnableInfobox (boolean enable)

boolean	EnableInfobox ()

void	ShowInfobox ()

void	HideInfobox ()

YailList	Centroid ()

double	DistanceToPoint (double latitude, double longitude, boolean centroid)

double	DistanceToFeature (MapFeature mapFeature, final boolean centroids)

void	Click ()

void	LongClick ()

void	StartDrag ()

void	Drag ()

void	StopDrag ()

HandlesEventDispatching	getDispatchDelegate ()

final synchronized GeoPoint	getCentroid ()

final synchronized Geometry	getGeometry ()

Public Member Functions inherited from com.google.appinventor.components.runtime.util.MapFactory.MapFeature
void	setMap (MapFeatureContainer map)

Protected Member Functions
Geometry	computeGeometry ()

Protected Member Functions inherited from com.google.appinventor.components.runtime.MapFeatureBase
	MapFeatureBase (MapFeatureContainer container, MapFeatureVisitor< Double > distanceComputation)

final synchronized void	clearGeometry ()

Additional Inherited Members
Static Public Attributes inherited from com.google.appinventor.components.runtime.Component
static final String	ASSET_DIRECTORY = "component"

static final int	ALIGNMENT_NORMAL = 0

static final int	ALIGNMENT_CENTER = 1

static final int	ALIGNMENT_OPPOSITE = 2

static final int	ACCELEROMETER_SENSITIVITY_WEAK = 1

static final int	ACCELEROMETER_SENSITIVITY_MODERATE = 2

static final int	ACCELEROMETER_SENSITIVITY_STRONG = 3

static final int	BUTTON_SHAPE_DEFAULT = 0

static final int	BUTTON_SHAPE_ROUNDED = 1

static final int	BUTTON_SHAPE_RECT = 2

static final int	BUTTON_SHAPE_OVAL = 3

static final int	COLOR_NONE = 0x00FFFFFF

static final int	COLOR_BLACK = 0xFF000000

static final int	COLOR_BLUE = 0xFF0000FF

static final int	COLOR_CYAN = 0xFF00FFFF

static final int	COLOR_DKGRAY = 0xFF444444

static final int	COLOR_GRAY = 0xFF888888

static final int	COLOR_GREEN = 0xFF00FF00

static final int	COLOR_LTGRAY = 0xFFCCCCCC

static final int	COLOR_MAGENTA = 0xFFFF00FF

static final int	COLOR_ORANGE = 0xFFFFC800

static final int	COLOR_PINK = 0xFFFFAFAF

static final int	COLOR_RED = 0xFFFF0000

static final int	COLOR_WHITE = 0xFFFFFFFF

static final int	COLOR_YELLOW = 0xFFFFFF00

static final int	COLOR_DEFAULT = 0x00000000

static final String	DEFAULT_VALUE_COLOR_NONE = "&H00FFFFFF"

static final String	DEFAULT_VALUE_COLOR_BLACK = "&HFF000000"

static final String	DEFAULT_VALUE_COLOR_BLUE = "&HFF0000FF"

static final String	DEFAULT_VALUE_COLOR_CYAN = "&HFF00FFFF"

static final String	DEFAULT_VALUE_COLOR_DKGRAY = "&HFF444444"

static final String	DEFAULT_VALUE_COLOR_GRAY = "&HFF888888"

static final String	DEFAULT_VALUE_COLOR_GREEN = "&HFF00FF00"

static final String	DEFAULT_VALUE_COLOR_LTGRAY = "&HFFCCCCCC"

static final String	DEFAULT_VALUE_COLOR_MAGENTA = "&HFFFF00FF"

static final String	DEFAULT_VALUE_COLOR_ORANGE = "&HFFFFC800"

static final String	DEFAULT_VALUE_COLOR_PINK = "&HFFFFAFAF"

static final String	DEFAULT_VALUE_COLOR_RED = "&HFFFF0000"

static final String	DEFAULT_VALUE_COLOR_WHITE = "&HFFFFFFFF"

static final String	DEFAULT_VALUE_COLOR_YELLOW = "&HFFFFFF00"

static final String	DEFAULT_VALUE_COLOR_DEFAULT = "&H00000000"

static final float	FONT_DEFAULT_SIZE = 14

static final int	LAYOUT_ORIENTATION_HORIZONTAL = ComponentConstants.LAYOUT_ORIENTATION_HORIZONTAL

static final int	LAYOUT_ORIENTATION_VERTICAL = ComponentConstants.LAYOUT_ORIENTATION_VERTICAL

static final int	SCALING_SCALE_PROPORTIONALLY = 0

static final int	SCALING_SCALE_TO_FIT = 1

static final int	TYPEFACE_DEFAULT = 0

static final int	TYPEFACE_SANSSERIF = 1

static final int	TYPEFACE_SERIF = 2

static final int	TYPEFACE_MONOSPACE = 3

static final int	LENGTH_PREFERRED = -1

static final int	LENGTH_FILL_PARENT = -2

static final int	LENGTH_UNKNOWN = -3

static final int	LENGTH_PERCENT_TAG = -1000

static final int	TOAST_LENGTH_SHORT = 0

static final int	TOAST_LENGTH_LONG = 1

static final int	DIRECTION_NORTH = 1

static final int	DIRECTION_NORTHEAST = 2

static final int	DIRECTION_EAST = 3

static final int	DIRECTION_SOUTHEAST = 4

static final int	DIRECTION_SOUTH = -1

static final int	DIRECTION_SOUTHWEST = -2

static final int	DIRECTION_WEST = -3

static final int	DIRECTION_NORTHWEST = -4

static final int	DIRECTION_NONE = 0

static final int	DIRECTION_MIN = -4

static final int	DIRECTION_MAX = 4

static float	SLIDER_MIN_VALUE = 10

static float	SLIDER_MAX_VALUE = 50

static float	SLIDER_THUMB_VALUE = (SLIDER_MIN_VALUE + SLIDER_MAX_VALUE) / 2.0f

static final String	DEFAULT_VALUE_TEXT_TO_SPEECH_COUNTRY = ""

static final String	DEFAULT_VALUE_TEXT_TO_SPEECH_LANGUAGE = ""

Protected Attributes inherited from com.google.appinventor.components.runtime.MapFeatureBase
MapFeatureContainer	container = null

Map	map = null

Detailed Description

The Circle component visualizes a circle of a given Radius(double), in meters, centered at a Latitude(double) and Longitude(double). The Circle's appearance cnn be customized using properties such as FillColor(int), StrokeColor(int), and StrokeWidth(int).

The Circle component can also be used to implement features such as geofencing, a mechanism where the user's presence within an area is used to trigger other behaviors. Using the DistanceToPoint(double, double, boolean) method combined with the LocationSensor, you can determine whether a user's location is inside or outside of the Circle. You can use this feature to trigger additional actions.

Definition at line 49 of file Circle.java.

Constructor & Destructor Documentation

◆ Circle()

com.google.appinventor.components.runtime.Circle.Circle ( MapFactory.MapFeatureContainer container )

Definition at line 117 of file Circle.java.

Member Function Documentation

◆ computeGeometry()

Geometry com.google.appinventor.components.runtime.Circle.computeGeometry ( )

protected

Reimplemented from com.google.appinventor.components.runtime.MapFeatureBase.

Definition at line 236 of file Circle.java.

◆ Latitude() [1/2]

double com.google.appinventor.components.runtime.Circle.Latitude ( )

Sets or gets the latitude of the center of the circle, in degrees. Positive values represent north of the equator and negative values represent south of the equator. To update the latitude and longitude simultaneously, use the SetLocation(double, double) method.

Implements com.google.appinventor.components.runtime.util.MapFactory.MapCircle.

Definition at line 173 of file Circle.java.

◆ Latitude() [2/2]

void com.google.appinventor.components.runtime.Circle.Latitude ( double latitude )

Sets the latitude of the center of the circle, in decimal degrees, with positive values representing latitudes north of the equator.

Parameters

latitude the new latitude of the circle, in degrees.

Implements com.google.appinventor.components.runtime.util.MapFactory.MapCircle.

Definition at line 153 of file Circle.java.

◆ Longitude() [1/2]

double com.google.appinventor.components.runtime.Circle.Longitude ( )

Sets or gets the longitude of the center of the circle, in degrees. Positive values represent east of the prime meridian and negative values represent west of the prime meridian. To update the latitude and longitude simultaneously, use the SetLocation(double, double) method.

Implements com.google.appinventor.components.runtime.util.MapFactory.MapCircle.

Definition at line 201 of file Circle.java.

◆ Longitude() [2/2]

void com.google.appinventor.components.runtime.Circle.Longitude ( double longitude )

Sets the longitude of the center of the circle, in decimal degrees, with positive values representing longitudes east of the prime meridian.

Parameters

longitude the new longitude of the circle, in degrees.

Implements com.google.appinventor.components.runtime.util.MapFactory.MapCircle.

Definition at line 181 of file Circle.java.

◆ Radius() [1/2]

double com.google.appinventor.components.runtime.Circle.Radius ( )

Sets or gets the radius of the circle, in meters.

Implements com.google.appinventor.components.runtime.util.MapFactory.MapCircle.

Definition at line 145 of file Circle.java.

◆ Radius() [2/2]

void com.google.appinventor.components.runtime.Circle.Radius ( double radius )

Sets the radius of the circle, in meters.

Parameters

radius the radius in meters.

Implements com.google.appinventor.components.runtime.util.MapFactory.MapCircle.

Definition at line 133 of file Circle.java.

◆ SetLocation()

void com.google.appinventor.components.runtime.Circle.SetLocation	(	double	latitude,
		double	longitude
	)

Moves the center of the Circle to the given latitude and longitude. This method is more efficient than setting Latitude(double) and Longitude(double) separately.

Parameters

latitude	the new latitude of the circle center, in decimal degrees.
longitude	the new longitude of the circle center, in decimal degrees.

Implements com.google.appinventor.components.runtime.util.MapFactory.MapCircle.

Definition at line 213 of file Circle.java.

◆ Type()

String com.google.appinventor.components.runtime.Circle.Type ( )

The type (class) of the map feature. Typically this should be getClass().getSimpleName().

Returns: string representing the type of the feature

Implements com.google.appinventor.components.runtime.util.MapFactory.MapFeature.

Definition at line 125 of file Circle.java.

◆ updateCenter()

void com.google.appinventor.components.runtime.Circle.updateCenter	(	double	latitude,
		double	longitude
	)

Applies updates from the native view. No validation of the latitude, longitude is performed, and the owning map view is not invalidated.

Parameters

latitude	a latitude between -90 and 90
longitude	a longitude between -180 and 180

Implements com.google.appinventor.components.runtime.util.MapFactory.MapCircle.

Definition at line 241 of file Circle.java.

The documentation for this class was generated from the following file:

C:/Users/Ulli/appinventor-sources/appinventor/components/src/com/google/appinventor/components/runtime/Circle.java

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Circle()

Member Function Documentation

◆ computeGeometry()

◆ Latitude() [1/2]

◆ Latitude() [2/2]

◆ Longitude() [1/2]

◆ Longitude() [2/2]

◆ Radius() [1/2]

◆ Radius() [2/2]

◆ SetLocation()

◆ Type()

◆ updateCenter()