public EquidistantConicProjection()
{
MinLatitude = ProjectionMath.ToRadians(10);
MaxLatitude = ProjectionMath.ToRadians(70);
MinLongitude = ProjectionMath.ToRadians(-90);
MaxLongitude = ProjectionMath.ToRadians(90);
_standardLatitude1 = ProjectionMath.ToDegrees(60); //???
_standardLatitude2 = ProjectionMath.ToDegrees(20); //???
Initialize(ProjectionMath.ToRadians(0), ProjectionMath.ToRadians(37.5), _standardLatitude1, _standardLatitude2);
}
public override Coordinate Project(double lplam, double lpphi, Coordinate xy)
{
double phi = Math.Abs(lpphi);
int i = (int)Math.Floor(phi * C1);
if (i >= NODES)
{
i = NODES - 1;
}
phi = ProjectionMath.ToDegrees(phi - RC1 * i);
i *= 4;
xy.X = poly(X, i, phi) * FXC * lplam;
xy.Y = poly(Y, i, phi) * FYC;
if (lpphi < 0.0)
{
xy.Y = -xy.Y;
}
return(xy);
}
public string Format(string format, object arg, IFormatProvider formatProvider)
{
if (!(arg is float || arg is double))
{
if (arg is IFormattable)
{
return(((IFormattable)arg).ToString(format, formatProvider));
}
return(arg != null?arg.ToString() : String.Empty);
}
if (String.IsNullOrEmpty(format))
{
format = _pattern;
}
else
{
CheckFormatString(format);
}
int length = format.Length;
Boolean negative = false;
Double number = Convert.ToDouble(arg);
if (number < 0)
{
for (int i = length - 1; i >= 0; i--)
{
char c = _pattern[i];
if (c == 'W' || c == 'N')
{
number = -number;
negative = true;
break;
}
}
}
double ddmmss = _isDegrees
? number
: ProjectionMath.ToDegrees(number);
int iddmmss = (int)Math.Round(ddmmss * 3600);
if (iddmmss < 0)
{
iddmmss = -iddmmss;
}
int fraction = iddmmss % 3600;
StringBuilder result = new StringBuilder();
foreach (char c in format)
{
int f;
switch (c)
{
case 'R':
result.Append(number);
break;
case 'D':
result.Append((int)ddmmss);
break;
case 'M':
f = fraction / 60;
if (f < 10)
{
result.Append('0');
}
result.Append(f);
break;
case 'S':
f = fraction % 60;
if (f < 10)
{
result.Append('0');
}
result.Append(f);
break;
case 'F':
result.Append(fraction);
break;
case 'W':
if (negative)
{
result.Append('W');
}
else
{
result.Append('E');
}
break;
case 'N':
if (negative)
{
result.Append('S');
}
else
{
result.Append('N');
}
break;
default:
result.Append(c);
break;
}
}
return(result.ToString());
}
