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hohyon-ryu · Aug 22, 2011 · 02b5da5 · 02b5da5
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diff --git a/README b/README
@@ -1,6 +1,6 @@
-py_geo_voronoi 
+infochimps Voronoi
 
-Created by Hohyon Ryu, Aug/19/2011
+Created by Hohyon Ryu, Aug/22/2011
 
 * Dependencies
 
@@ -9,6 +9,18 @@ Created by Hohyon Ryu, Aug/19/2011
  - Built on Steve Fortune's Python Voronoi Code
    Steve Fortune's homepage: http://netlib.bell-labs.com/cm/cs/who/sjf/index.html
 
+* Files
+
+  README
+  globalmaptiles.py - Google Geo-coordinate Library
+  voronoi.py        - Voronoi lattice library (line and vertices based)
+  voronoi_poly.py   - Voronoi lattice library (polygon based)
+
+  sample_city_data.csv - sample data
+
+  main_example.py   - code example
+
+
 * Inputs:
   1. Dictionary of the points: (You can use simple sequential number for the dictionary keys or some text to associate with.)
     PointsMap={}
@@ -30,38 +42,52 @@ Created by Hohyon Ryu, Aug/19/2011
 
 * Output options:
   1. Stations, Lines and edges
+    Example:
+    import voronoi_poly
+    vl=voronoi_poly.VoronoiLineEdges(PointsMap)
+
+    Output:
+      vertices, lines, edges, station_to_edge
+          (1) a list of 2-tuples, which are the x,y coordinates of the 
+              Voronoi diagram vertices
+          (2) a list of 3-tuples (a,b,c) which are the equations of the
+              lines in the Voronoi diagram: a*x + b*y = c
+          (3) a list of 3-tuples, (l, v1, v2) representing edges of the 
+              Voronoi diagram.  l is the index of the line, v1 and v2 are
+              the indices of the vetices at the end of the edge.  If 
+              v1 or v2 is -1, the line extends to infinity.    
+          (4) a dictionary, where keys are the station numbers(vertices), and the 
+              values are the number of edges surrounding the vertice.
+
   2. Polygons
-  3. GeoJson Polygons
-  4. GeoJson MultiPolygons
-
-  Example:
-  import voronoi_poly
-
-  vl=voronoi_poly.VoronoiLineEdges(PointsMap)
-  Output:
-    vertices, lines, edges, station_to_edge
-        (1) a list of 2-tuples, which are the x,y coordinates of the 
-            Voronoi diagram vertices
-        (2) a list of 3-tuples (a,b,c) which are the equations of the
-            lines in the Voronoi diagram: a*x + b*y = c
-        (3) a list of 3-tuples, (l, v1, v2) representing edges of the 
-            Voronoi diagram.  l is the index of the line, v1 and v2 are
-            the indices of the vetices at the end of the edge.  If 
-            v1 or v2 is -1, the line extends to infinity.    
-        (4) a dictionary, where keys are the station numbers(vertices), and the 
-            values are the number of edges surrounding the vertice.
-
-  vl=voronoi_poly.VoronoiPolygons(PointsMap, BoundingBox="AUSTIN", PlotMap=False)
-  Output:
-    185: {'coordinate': (3.04, 36.77), 'info': 'Algiers/Algeria', 'obj_polygon': <shapely.geometry.polygon.Polygon object at 0x3152190>}
-
-    - You can access the polygon coordinates by the following example:
+    import voronoi_poly
+    vl=voronoi_poly.VoronoiPolygons(PointsMap, BoundingBox="AUSTIN", PlotMap=False)
+    Output:
+      185: {'coordinate': (3.04, 36.77), 'info': 'Algiers/Algeria', 'obj_polygon': <shapely.geometry.polygon.Polygon object at 0x3152190>}
+
+      - You can access the polygon coordinates by the following example:
+
+        from shapely.geometry import Polygon      
+        print list(polygon_data.exterior.coords)
 
-      from shapely.geometry import Polygon      
-      print list(polygon_data.exterior.coords)
+  3. Quadkey-based Grids on Polygons
+    import voronoi_poly
 
-  vl=voronoi_poly.VoronoiGeoJson_Polygons(PointsMap, BoundingBox="US")
+    vl=voronoi_poly.VoronoiPolygons(PointsMap, BoundingBox="W", PlotMap=False)
+    voronoi_poly.GridVoronoi(vl, zl=7, PlotMap=True)  
+    Output: Quadkey, Station_name, Longitude, Latitude
 
-  vl=voronoi_poly.VoronoiGeoJson_MultiPolygons(PointsMap, BoundingBox="KR")
+  4. GeoJson Polygons
+    import voronoi_poly
+    voronoi_poly.VoronoiGeoJson_Polygons(PointsMap, BoundingBox="US")
+    Output:
+      Geojson Polygons
 
+  5. GeoJson MultiPolygons
+    import voronoi_poly
+    voronoi_poly.VoronoiGeoJson_MultiPolygons(PointsMap, BoundingBox="KR")
+    Output:
+      Geojson MiltiPolygons
 
+
+