private static int ReadHeader(SkippingLineReader lineReader)
{
int numSurfaces = 0;
// Read the header
int searchLimit = 50;
do
{
string line = lineReader.ReadLineNoSkip().Trim();
if (Charisma.surfaceRegex.IsMatch(line))
{
// The header line has been located
// TODO Extract the Charisma surface names, and
// and determine how many there are.
numSurfaces = 1; // TODO: Fix numSurfaces
break;
}
}while (lineReader.PhysicalLineNumber < searchLimit);
if (numSurfaces == 0)
{
throw new OpenException("No surfaces found in Charisma file");
}
return(numSurfaces);
}
public void Open(IGeoModel model)
{
Debug.Assert(uri != null);
Debug.Assert(model != null);
builder = model.CreateGridBuilder();
int postHeaderLine = ParseHeader();
// Read the body of the grid, skipping comment and blank lines
using (SkippingLineReader lineReader = new SkippingLineReader(uri.LocalPath, Cps3.commentBlanksPattern))
{
// Skip forward over the header
while (lineReader.PhysicalLineNumber < postHeaderLine)
{
lineReader.ReadLineNoSkip();
}
// Parse the body of the grid
string line;
int counter = 0;
while ((line = lineReader.ReadLine()) != null)
{
string[] fields = Regex.Split(line, @"\s+");
foreach (string field in fields)
{
double z;
if (double.TryParse(field, out z))
{
int i = counter % parameters.INum.Value;
int j = counter / parameters.INum.Value;
if (z != parameters.ZNull)
{
builder[i, j] = z;
}
++counter;
}
else
{
StringBuilder message = new StringBuilder();
message.AppendFormat("Bad grid data '{0}' at line {1}", field, lineReader.PhysicalLineNumber);
throw new OpenException(message.ToString());
}
}
}
}
}