public static MapData ReadMapData(string path, ASCIIGridMetadata metadata)
{
if (metadata.nrows < 1 || metadata.ncols < 1)
{
return(null);
}
float[,] mapData = new float[metadata.ncols, metadata.nrows];
float minHeight = float.MaxValue, maxHeight = float.MinValue;
using (StreamReader input = new StreamReader(StreamUtil.GetFileStream(path))) {
string line;
int x = 0, y = 0;
while ((line = input.ReadLine()) != null)
{
if (line[0] == ' ') // Data lines start with a space
{
string[] values = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
x = 0;
foreach (string value in values)
{
try {
float height = float.Parse(value);
if (height != metadata.nodatavalue)
{
if (height < minHeight)
{
minHeight = height;
}
if (height > maxHeight)
{
maxHeight = height;
}
}
mapData[x, y] = height;
} catch (Exception e) {
Debug.Log(x + ", " + y);
Debug.Log(e.ToString());
}
x++;
}
y++;
}
}
}
metadata.Set(ASCIIGridMetadata.minheightKey, minHeight.ToString());
metadata.Set(ASCIIGridMetadata.maxheightKey, maxHeight.ToString());
ReplaceNoDataValuesWithMinHeight(metadata, mapData);
return(new MapData(mapData, metadata));
}
public static ASCIIGridMetadata ReadMetadata(string path)
{
ASCIIGridMetadata metadata = new ASCIIGridMetadata();
using (StreamReader input = new StreamReader(StreamUtil.GetFileStream(path))) {
string line;
bool keepGoing = true;
while (keepGoing && (line = input.ReadLine()) != null)
{
switch (line[0])
{
case ' ':
keepGoing = false; // We hit the actual data, stop reading
break;
default:
string[] keyValue = line.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
metadata.Set(keyValue[0], keyValue[1]);
break;
}
}
}
return(metadata);
}
public void SetNColsWorks()
{
metadata.Set("ncols", "7");
Assert.True(metadata.ncols == 7, "Ncols incorrect.");
}
