com.google.maps.android.heatmaps

Class HeatmapTileProvider

java.lang.Object

com.google.maps.android.heatmaps.HeatmapTileProvider

public class HeatmapTileProvider
extends java.lang.Object

Tile provider that creates heatmap tiles.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HeatmapTileProvider.Builder Builder class for the HeatmapTileProvider.

Field Summary

Fields

Modifier and Type	Field and Description
static Gradient	DEFAULT_GRADIENT Default gradient for heatmap.
static double	DEFAULT_OPACITY Default opacity of heatmap overlay
static int	DEFAULT_RADIUS Default radius for convolution

Method Summary

Modifier and Type	Method and Description
Tile	getTile(int x, int y, int zoom) Creates tile.
void	setData(java.util.Collection<LatLng> data) Changes the dataset the heatmap is portraying.
void	setGradient(Gradient gradient) Setter for gradient/color map.
void	setMaxIntensity(double intensity) Setter for max intensity User should clear overlay's tile cache (using clearTileCache()) after calling this.
void	setOpacity(double opacity) Setter for opacity User should clear overlay's tile cache (using clearTileCache()) after calling this.
void	setRadius(int radius) Setter for radius.
void	setWeightedData(java.util.Collection<WeightedLatLng> data) Changes the dataset the heatmap is portraying.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_RADIUS

public static final int DEFAULT_RADIUS

Default radius for convolution

See Also:

Constant Field Values

DEFAULT_OPACITY

public static final double DEFAULT_OPACITY

Default opacity of heatmap overlay

See Also:

Constant Field Values

DEFAULT_GRADIENT

public static final Gradient DEFAULT_GRADIENT

Default gradient for heatmap.

Method Detail

setWeightedData

public void setWeightedData(java.util.Collection<WeightedLatLng> data)

Changes the dataset the heatmap is portraying. Weighted. User should clear overlay's tile cache (using clearTileCache()) after calling this.

Parameters:

data - Data set of points to use in the heatmap, as LatLngs. Note: Editing data without calling setWeightedData again will not update the data displayed on the map, but will impact calculation of max intensity values, as the collection you pass in is stored. Outside of changing the data, max intensity values are calculated only upon changing the radius.

setData

public void setData(java.util.Collection<LatLng> data)

Changes the dataset the heatmap is portraying. Unweighted. User should clear overlay's tile cache (using clearTileCache()) after calling this.

Parameters:

data - Data set of points to use in the heatmap, as LatLngs.

getTile

public Tile getTile(int x,
                    int y,
                    int zoom)

Creates tile.

Parameters:

x - X coordinate of tile.

y - Y coordinate of tile.

zoom - Zoom level.

Returns:

image in Tile format

setGradient

public void setGradient(Gradient gradient)

Setter for gradient/color map. User should clear overlay's tile cache (using clearTileCache()) after calling this.

Parameters:

gradient - Gradient to set

setRadius

public void setRadius(int radius)

Setter for radius. User should clear overlay's tile cache (using clearTileCache()) after calling this.

Parameters:

radius - Radius to set

setOpacity

public void setOpacity(double opacity)

Setter for opacity User should clear overlay's tile cache (using clearTileCache()) after calling this.

Parameters:

opacity - opacity to set

setMaxIntensity

public void setMaxIntensity(double intensity)

Setter for max intensity User should clear overlay's tile cache (using clearTileCache()) after calling this.

Parameters:

intensity - intensity to set