public Bitmap drawTileQueryIndex ( int x , int y , int zoom ) { // Get the web mercator bounding box BoundingBox webMercatorBoundingBox = TileBoundingBoxUtils . getWebMercatorBoundingBox ( x , y , zoom ) ; Bitmap bitmap = null ; // Query for geometries matching the bounds in the index FeatureIndexResults results = queryIndexedFeatures ( webMercatorBoundingBox ) ; try { long tileCount = results . count ( ) ; // Draw if at least one geometry exists if ( tileCount > 0 ) { if ( maxFeaturesPerTile == null || tileCount <= maxFeaturesPerTile . longValue ( ) ) { // Draw the tile bitmap bitmap = drawTile ( zoom , webMercatorBoundingBox , results ) ; } else if ( maxFeaturesTileDraw != null ) { // Draw the max features tile bitmap = maxFeaturesTileDraw . drawTile ( tileWidth , tileHeight , tileCount , results ) ; } } } finally { results . close ( ) ; } return bitmap ; }
Draw a tile bitmap from the x y and zoom level by querying features in the tile location