public static PhiLambda ArcMicroSecondsToRadians(double phi, double lambda)
{
return(new PhiLambda
{
Lambda = ProjectionMath.ArcMicroSecondsToRadians(lambda),
Phi = ProjectionMath.ArcMicroSecondsToRadians(phi)
});
}
public static PhiLambda ArcMicroSecondsToRadians(PhiLambda plInDegrees)
{
return(new PhiLambda
{
Lambda = ProjectionMath.ArcMicroSecondsToRadians(plInDegrees.Lambda),
Phi = ProjectionMath.ArcMicroSecondsToRadians(plInDegrees.Phi)
});
}
internal override bool ReadData(GridTable table)
{
using (var sr = new StreamReader(OpenGridTableStream()))
{
//Skip first 2 lines
sr.ReadLine();
sr.ReadLine();
var phiIndex = -1;
var lambdaIndex = 0;
double phi = 0, lambda = 0;
var coeff = new PhiLambda[table.NumPhis][];
while (!sr.EndOfStream)
{
var line = sr.ReadLine();
if (string.IsNullOrEmpty(line))
{
continue;
}
var posColon = line.IndexOf(':');
string[] values;
int valueIndex;
if (posColon > 0)
{
phiIndex = int.Parse(line.Substring(0, posColon), NumberStyles.Integer);
coeff[phiIndex] = new PhiLambda[table.NumLambdas];
line = line.Substring(posColon + 1);
values = line.Split(new[] { ' ' });
lambda = ProjectionMath.ArcSecondsToRadians(long.Parse(values[0], NumberStyles.Integer));
phi = ProjectionMath.ArcSecondsToRadians(long.Parse(values[1], NumberStyles.Integer));
coeff[phiIndex][0].Phi = phi;
coeff[phiIndex][0].Lambda = lambda;
lambdaIndex = 1;
valueIndex = 2;
}
else
{
values = line.Split(new[] { ' ' });
valueIndex = 0;
}
if (phiIndex >= 0)
{
while (lambdaIndex < table.NumLambdas)
{
lambda += ProjectionMath.ArcMicroSecondsToRadians(
long.Parse(values[valueIndex++], NumberStyles.Integer));
phi += ProjectionMath.ArcMicroSecondsToRadians(
long.Parse(values[valueIndex++], NumberStyles.Integer));
coeff[phiIndex][lambdaIndex].Phi = phi;
coeff[phiIndex][lambdaIndex].Lambda = lambda;
lambdaIndex++;
}
}
}
table.Coefficients = coeff;
}
return(true);
}
