public string MakeToAscii()
{
GrayScaleValues = new int[InputImage.Width, InputImage.Height];
makeGrayScale();
if (BlackToWhite == false)
{
char[] charArray = AsciiValues.ToCharArray();
Array.Reverse(charArray);
AsciiValues = new string(charArray);
}
return(avgBlocks(AsciiHeight, AsciiWidth));
}
public JsonResult ConvexHull(int Id, int Forecast)
{
if (Forecast > 0)
{
using (MeteoDataEntities me = new MeteoDataEntities())
{
var asciiResult = me.IndexMaps.Where(x => x.Id == Id).Select(x => x.IndexMapZipAscii).First();
Byte[] ascii = ex.Uncompress(asciiResult);
//System.IO.File.WriteAllBytes(@"C:\Static\test.asc", ascii);
#region Read ascii
List <AsciiValues> listasp = new List <AsciiValues>();
int counter = 0;
string line;
int ncols = 0;
int nrows = 0;
int xllcorner = 0;
int yllcorner = 0;
int cellsize = 0;
int NODATA_value = 0;
using (MemoryStream memoryStream = new MemoryStream(ascii))
{
using (StreamReader st = new StreamReader(memoryStream))
{
while ((line = st.ReadLine()) != null)
{
//System.Console.WriteLine(line);
if (!string.IsNullOrWhiteSpace(line))
{
counter++;
#region ASC Details
if (counter < 7)
{
string[] result = line.Split(' ');
if (result[0].Contains("ncols"))
{
for (int i = 1; i < result.Length; i++)
{
if (!String.IsNullOrWhiteSpace(result[i]))
{
int number;
if (int.TryParse(result[i], out number))
{
ncols = number;
}
}
}
}
if (result[0].Contains("nrows"))
{
for (int i = 1; i < result.Length; i++)
{
if (!String.IsNullOrWhiteSpace(result[i]))
{
int number;
if (int.TryParse(result[i], out number))
{
nrows = number;
}
}
}
}
if (result[0].Contains("xllcorner"))
{
for (int i = 1; i < result.Length; i++)
{
if (!String.IsNullOrWhiteSpace(result[i]))
{
int number;
if (int.TryParse(result[i], out number))
{
xllcorner = number;
}
}
}
}
if (result[0].Contains("yllcorner"))
{
for (int i = 1; i < result.Length; i++)
{
if (!String.IsNullOrWhiteSpace(result[i]))
{
int number;
if (int.TryParse(result[i], out number))
{
yllcorner = number;
}
}
}
}
if (result[0].Contains("cellsize"))
{
for (int i = 1; i < result.Length; i++)
{
if (!String.IsNullOrWhiteSpace(result[i]))
{
int number;
if (int.TryParse(result[i], out number))
{
cellsize = number;
}
}
}
}
if (result[0].Contains("NODATA_value"))
{
for (int i = 1; i < result.Length; i++)
{
if (!String.IsNullOrWhiteSpace(result[i]))
{
int number;
if (int.TryParse(result[i], out number))
{
NODATA_value = number;
}
}
}
}
}
#endregion ASC Details
else
{
string[] result = line.Split(' ');
for (int i = 0; i < result.Length; i++)
{
int number;
if (int.TryParse(result[i], out number))
{
AsciiValues aspul = new AsciiValues()
{
X = xllcorner + (i * cellsize),
Y = (yllcorner + (nrows * cellsize)) - (cellsize * (counter - 7)),
Value = number
};
AsciiValues aspur = new AsciiValues()
{
X = xllcorner + (i * cellsize) + cellsize,
Y = (yllcorner + (nrows * cellsize)) - (cellsize * (counter - 7)),
Value = number
};
AsciiValues aspdl = new AsciiValues()
{
X = xllcorner + (i * cellsize),
Y = (yllcorner + (nrows * cellsize)) - (cellsize * (counter - 7)) - cellsize,
Value = number
};
AsciiValues aspdr = new AsciiValues()
{
X = xllcorner + (i * cellsize) + cellsize,
Y = (yllcorner + (nrows * cellsize)) - (cellsize * (counter - 7)) - cellsize,
Value = number
};
listasp.Add(aspul);
listasp.Add(aspur);
listasp.Add(aspdl);
listasp.Add(aspdr);
}
}
}
}
}
counter.ToString();
}
}
#endregion Read ascii
var points = listasp.Where(x => x.Value <= Forecast && x.Value > 0);
var finalpoints = points.Select(x => new Point <double>()
{
X = x.X, Y = x.Y
}).ToList();
var ConvexHullresult = PointMath.ComputeConvexHull(finalpoints, true);
return(this.Json(ConvexHullresult, JsonRequestBehavior.AllowGet));
}
}
else
{
return(this.Json(null, JsonRequestBehavior.AllowGet));
}
}
