Package com.google.maps.android.heatmaps

Class HeatmapTileProvider

  • All Implemented Interfaces:
    com.google.android.gms.maps.model.TileProvider
    public class HeatmapTileProvider
extends java.lang.Object
implements com.google.android.gms.maps.model.TileProvider
    Tile provider that creates heatmap tiles.

    • Nested Class Summary

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

    • Field Summary

      Fields 
      Modifier and Type Field 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

      • Fields inherited from interface com.google.android.gms.maps.model.TileProvider

        NO_TILE

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      com.google.android.gms.maps.model.Tile getTile​(int x, int y, int zoom)
      Creates tile.
      void setData​(java.util.Collection<com.google.android.gms.maps.model.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

        equals, 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<com.google.android.gms.maps.model.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 com.google.android.gms.maps.model.Tile getTile​(int x,
                                                      int y,
                                                      int zoom)
        Creates tile.
        Specified by:
        getTile in interface com.google.android.gms.maps.model.TileProvider
        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