public void ExtractOriginals()
{
foreach (var tile in TileCodes)
{
var path = $@"D:\Data\DEM\NZ\{tile}.asc";
var file = NzReader.Read(path);
Assert.AreEqual(8192, file.Columns);
Assert.AreEqual(8192, file.Rows);
Assert.AreEqual(-999, file.NoDataValue);
var list = new StatList();
var arr = file.Data;
foreach (var index in arr.Indices())
{
var value = arr[index];
if (value == file.NoDataValue)
{
foreach (var neighbour in arr.Neighbours(index))
{
var neighbourValue = arr[neighbour];
if (neighbourValue != file.NoDataValue)
{
list.Add(neighbourValue);
}
}
}
}
if (list.Any())
{
file.ReplaceNoDataValue(list.Average());
}
var outputPath = Path.Combine(OutputPath, $"{tile}.npy");
np.save(outputPath, file.Data);
using (var stream = File.Create(Path.Combine(OutputPath, $"{tile}.png")))
{
new ImageConverter().ToPng(file.Data, stream, HeightToGrayscale.FullRange8(file.Data));
}
}
}
public void LoadFile()
{
foreach (var tile in new[] { "BJ", "UB", "UC" })
{
var path = $@"D:\Data\DEM\NZ\{tile}.asc";
var file = NzReader.Read(path);
Assert.AreEqual(8192, file.Columns);
Assert.AreEqual(8192, file.Rows);
Assert.AreEqual(-999, file.NoDataValue);
var list = new StatList();
var arr = file.Data;
foreach (var index in arr.Indices())
{
var value = arr[index];
if (value == file.NoDataValue)
{
foreach (var neighbour in arr.Neighbours(index))
{
var neighbourValue = arr[neighbour];
if (neighbourValue != file.NoDataValue)
{
list.Add(neighbourValue);
}
}
}
}
file.ReplaceNoDataValue(list.Average());
using (var stream = File.Create($@"D:\Data\DEM\NZ\{tile}.png"))
{
new ImageConverter().ToPng(file.Data, stream, HeightToGrayscale.FullRange8(file.Data));
}
}
}