public void getValue_CoordinateInsideRaster_value()
{
var parser = new AsciiGridParser(ExistingFile);
var parserCellSize = parser.CellSize;
Assert.Equal(1, parser.GetValue(new Coordinate(0, 0)));
}
private double GetRandomEsriAsciiValue(string file, int requests)
{
var pixels = new Coordinate[requests];
var asc = new AsciiGridParser(file);
var width = asc.NumberOfColumns;
var height = asc.NumberOfRows;
Parallel.For((long)0, requests,
index => { pixels[index] = new Coordinate(_rnd.Next(width), _rnd.Next(height)); });
// Close the file and reopen after messurement has started
var watch = System.Diagnostics.Stopwatch.StartNew();
asc = new AsciiGridParser(file);
Parallel.ForEach(pixels, pixel =>
{
var coord = new Coordinate(pixel.Y, pixel.X);
var value = asc.GetValue(coord);
// Console.WriteLine(value);
});
return(watch.Elapsed.Milliseconds);
}
public void GetDataEqual_value()
{
var parser = new AsciiGridParser(ExistingFile);
const string data = "1 -9999 3\n" +
"4 5 6";
Assert.Equal(data, parser.GetData());
}
public void GetMetadata_MetadataEqual_value()
{
var parser = new AsciiGridParser(ExistingFile);
const string metadata = "ncols 3\n" +
"nrows 2\n" +
"xllcorner 0\n" +
"yllcorner 0\n" +
"cellsize 10\n" +
"nodata_value -9999";
Assert.Equal(metadata, parser.GetMetadata());
}
public void AsciiGridParser_valid()
{
var parser = new AsciiGridParser(ExistingFile);
Assert.NotNull(parser);
Assert.Equal(3, parser.NumberOfColumns);
Assert.Equal(2, parser.NumberOfRows);
Assert.Equal(0, parser.XLowerLeftCorner);
Assert.Equal(0, parser.YLowerLeftCorner);
Assert.Equal(10, parser.CellSize);
Assert.Equal(-9999, parser.NoDataValue);
var data = new double[, ]
{
{ 1, -9999, 3 },
{ 4, 5, 6 }
};
Assert.Equal(data, parser.Data);
}
public void GetValueFromGps_GpsOutsideRaster_NoDataValue()
{
var parser = new AsciiGridParser(ExistingFile);
Assert.Equal(parser.NoDataValue, parser.GetValueFromGps(new Gps(31.0, 0.0)));
}
public void GetValueFromGps_GpsInsideRaster_value()
{
var parser = new AsciiGridParser(ExistingFile);
Assert.Equal(1, parser.GetValueFromGps(new Gps(0.0, 0.0)));
}
public void getValue_CoordinateOutsideRaster_NoDataValue()
{
var parser = new AsciiGridParser(ExistingFile);
Assert.Equal(parser.NoDataValue, parser.GetValue(new Coordinate(3, 0)));
}
