//
// GET: /Tiles/Revenue/
public ActionResult Index(int x, int y, int zoom, long industryId, long boundingGeographicLocationId, string startColor, string endColor, int bands, Core.DataLayer.Granularity granularity, int width = 256, int height = 256)
{
using (var context = ContextFactory.SizeUpContext)
{
Heatmap tile = new Heatmap(width, height, x, y, zoom);
BoundingBox boundingBox = tile.GetBoundingBox(TileBuffer);
double tolerance = GetPolygonTolerance(zoom);
var boundingGeo = boundingBox.GetDbGeography();
var gran = Enum.GetName(typeof(Core.DataLayer.Granularity), granularity);
var geos = Core.DataLayer.GeographicLocation.Get(context)
.Where(i => i.Granularity.Name == gran)
.Where(i => i.GeographicLocations.Any(g => g.Id == boundingGeographicLocationId));
var data = Core.DataLayer.IndustryData.Get(context).Where(i => i.IndustryId == industryId);
var list = geos
.GroupJoin(data, i => i.Id, o => o.GeographicLocationId, (i, o) => new { IndustryData = o, GeographicLocation = i })
.Select(i => new KeyValue <DbGeography, Band <double> >
{
Key = i.GeographicLocation.Geographies.Where(g => g.GeographyClass.Name == Core.Geo.GeographyClass.Display)
.Select(g => SqlSpatialFunctions.Reduce(g.Polygon, tolerance).Intersection(boundingGeo)).FirstOrDefault(),
Value = i.IndustryData.Select(d => d.Bands.Where(b => b.Attribute.Name == IndustryAttribute.CostEffectiveness).Select(b => new Band <double> {
Min = (double)b.Min.Value, Max = (double)b.Max.Value
}).FirstOrDefault()).FirstOrDefault()
}).ToList();
var quantiles = list
.Where(i => i.Value != null)
.NTileDescending(i => i.Value.Max, bands);
ColorBands colorBands = new Core.Tiles.ColorBands(System.Drawing.ColorTranslator.FromHtml("#" + startColor), System.Drawing.ColorTranslator.FromHtml("#" + endColor), quantiles.Count());
string[] bandList = colorBands.GetColorBands().ToArray();
var validValues = quantiles
.Select((i, index) => i.Where(g => g.Key != null).Select(g => new GeographyEntity()
{
Geography = SqlGeography.Parse(g.Key.AsText()), Color = bandList[index]
}))
.SelectMany(i => i)
.ToList();
var invalidValues = list
.Where(i => i.Value == null)
.Where(i => i.Key != null)
.Select(g => new GeographyEntity()
{
Geography = SqlGeography.Parse(g.Key.AsText())
})
.ToList();
var output = validValues.Union(invalidValues).ToList();
tile.Draw(output);
var stream = new System.IO.MemoryStream();
tile.Bitmap.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
return(File(stream.GetBuffer(), "image/png"));
}
}
//
// GET: /Api/Geography/
//[APIAuthorize(Role = "Place")]
public ActionResult ColorBands(string startColor, string endColor, int bands)
{
ColorBands b = new Core.Tiles.ColorBands(System.Drawing.ColorTranslator.FromHtml(startColor), System.Drawing.ColorTranslator.FromHtml(endColor), bands);
string[] bandList = b.GetColorBands().ToArray();
return(Json(bandList, JsonRequestBehavior.AllowGet));
}
//
// GET: /Tiles/Revenue/
public ActionResult Index(int x, int y, int zoom, long variableId, long boundingGeographicLocationId, string startColor, string endColor, int bands, Core.DataLayer.Granularity granularity = Core.DataLayer.Granularity.State, int width = 256, int height = 256)
{
using (var context = ContextFactory.SizeUpContext)
{
Heatmap tile = new Heatmap(width, height, x, y, zoom);
BoundingBox boundingBox = tile.GetBoundingBox(TileBuffer);
double tolerance = GetPolygonTolerance(zoom);
var boundingGeo = boundingBox.GetDbGeography();
var variable = Core.DataLayer.ConsumerExpenditures.Variables(context).Where(i => i.Id == variableId).Select(i => i.Variable).FirstOrDefault();
var gran = Enum.GetName(typeof(Core.DataLayer.Granularity), granularity);
var geos = Core.DataLayer.GeographicLocation.Get(context)
.Where(i => i.Granularity.Name == gran)
.Where(i => i.GeographicLocations.Any(g => g.Id == boundingGeographicLocationId));
var data = Core.DataLayer.ConsumerExpenditures.Get(context);
//.Where(i => i.GeographicLocation.Granularity.Name == gran)
//.Where(i => i.GeographicLocation.GeographicLocations.Any(g => g.Id == boundingGeographicLocationId));
ConstantExpression constant = Expression.Constant(data); //empty set
IQueryProvider provider = data.Provider;
Type dataType = typeof(ConsumerExpenditure);
var param = Expression.Parameter(dataType, "c");
var varSelector = Expression.Convert(Expression.Property(param, variable), typeof(long?)) as Expression;
var idSelector = Expression.Property(param, "GeographicLocationId") as Expression;
var transType = typeof(KeyValue <long, long?>);
var constructor = transType.GetConstructor(new Type[] { typeof(long), typeof(long?) });
var selector = Expression.New(constructor, new Expression[] { idSelector, varSelector }.AsEnumerable(), new System.Reflection.MemberInfo[] { transType.GetProperty("Key"), transType.GetProperty("Value") });
var pred = Expression.Lambda(selector, param) as Expression;
var expression = Expression.Call(typeof(Queryable), "Select", new Type[] { dataType, transType }, constant, pred);
var transformedData = data.Provider.CreateQuery <KeyValue <long, long?> >(expression);
var list = geos.GroupJoin(transformedData, i => i.Id, o => o.Key, (i, o) => new { Data = o, GeographicLocation = i })
.Select(i => new KeyValue <DbGeography, long?>
{
Key = i.GeographicLocation.Geographies.Where(g => g.GeographyClass.Name == Core.Geo.GeographyClass.Display)
.Select(g => SqlSpatialFunctions.Reduce(g.Polygon, tolerance).Intersection(boundingGeo)).FirstOrDefault(),
Value = i.Data.Select(d => d.Value).FirstOrDefault()
}).ToList();
var quantiles = list
.Where(i => i.Value != null)
.NTileDescending(i => i.Value, bands);
ColorBands colorBands = new Core.Tiles.ColorBands(System.Drawing.ColorTranslator.FromHtml("#" + startColor), System.Drawing.ColorTranslator.FromHtml("#" + endColor), quantiles.Count());
string[] bandList = colorBands.GetColorBands().ToArray();
var validValues = quantiles
.Select((i, index) => i.Where(g => g.Key != null).Select(g => new GeographyEntity()
{
Geography = SqlGeography.Parse(g.Key.AsText()), Color = bandList[index]
}))
.SelectMany(i => i)
.ToList();
var invalidValues = list
.Where(i => i.Value == null || i.Value <= 0)
.Where(i => i.Key != null)
.Select(g => new GeographyEntity()
{
Geography = SqlGeography.Parse(g.Key.AsText())
})
.ToList();
var output = validValues.Union(invalidValues).ToList();
tile.Draw(output);
var stream = new System.IO.MemoryStream();
tile.Bitmap.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
return(File(stream.GetBuffer(), "image/png"));
}
}
