Geospatial datasets added

Author: calderonil

geo/README.txt

@@ -0,0 +1,34 @@
+/*******************************************************************
+ *                              README                             *
+ *                      geographic test dataset                    *
+ *                                                                 *
+ *  Authors:	Luca Calderoni, University of Bologna              *
+ *		Paolo Palmieri, University College Cork            *
+ *                                                                 *
+ *    https://github.com/spatialbloomfilter/libSBF-testdatasets    *
+ *******************************************************************/
+
+The included datasets are provided to enable the testing of the Spatial Bloom 
+Filters implementations on a real geographical areas.
+
+The test datasets are based on several elements and areas.
+
+The datasets contain elements extracted from a conventional geospatial grid on 
+a specified area. Each element represents a single cell of the grid. The grid 
+is derived from the World Geodetic System (WGS84), with an arbitrary precision. 
+The unique identifier of each cell is formed by the latitude and the longitude 
+relative to the bottom left corner of the cell, separated by a hash '#' symbol. 
+For instance, using a four digit precision, a cell may be represented by the 
+identifier 00.0000#00.0000
+
+FILES			CONTENT
+- - -			- - -
+vatican-city-0001.csv	An area covering the Vatican City. The dataset specifies
+			4 areas of interest (AoI); the first value in the CSV is
+			the area identifier, the second (separated by a comma)
+			is the element (using the convention outlined above).
+
+For each of the files above, two graphical PDF files representing the mapped 
+geographical area are also included. The first file shows the map with an 
+overlay consisting of the World Geodetic System projections (WGS84). The second 
+file also shows the Areas of Interest (AoI) mapped into the dataset.