/// <summary>
/// Method to read
/// </summary>
/// <param name="reader"></param>
/// <param name="wkbReader"></param>
/// <returns></returns>
public static GpkgStandardBinary Read(BinaryReader reader, WKBReader wkbReader)
{
return(new GpkgStandardBinary
{
Header = GpkgBinaryHeader.Read(reader),
WellKnownBytes = reader.ReadBytes((int)(reader.BaseStream.Length - reader.BaseStream.Position)),
_wkbReader = wkbReader
});
}
private static void ReadBESridExtent(BinaryReader reader, GpkgBinaryHeader header)
{
header._srs_id = SwapByteOrder(reader.ReadInt32());
var ordinates = header.Ordinates;
if (ordinates == Ordinates.None)
{
header._extent = new Envelope();
header._zrange = Interval.Create();
header._mrange = Interval.Create();
return;
}
header._extent = new Envelope(SwapByteOrder(reader.ReadDouble()), SwapByteOrder(reader.ReadDouble()),
SwapByteOrder(reader.ReadDouble()), SwapByteOrder(reader.ReadDouble()));
if ((ordinates & Ordinates.Z) == Ordinates.Z)
header._zrange = Interval.Create(SwapByteOrder(reader.ReadDouble()), SwapByteOrder(reader.ReadDouble()));
if ((ordinates & Ordinates.M) == Ordinates.M)
header._mrange = Interval.Create(SwapByteOrder(reader.ReadDouble()), SwapByteOrder(reader.ReadDouble()));
}
public static GpkgBinaryHeader Read(BinaryReader reader)
{
var res = new GpkgBinaryHeader();
res._magic = reader.ReadBytes(2);
res._version = reader.ReadByte();
res._flags = reader.ReadByte();
switch (res.Endianess)
{
case 1:
ReadSridExtent(reader, res);
break;
case 2:
ReadBESridExtent(reader, res);
break;
}
return res;
}
public static GpkgBinaryHeader Read(BinaryReader reader)
{
var res = new GpkgBinaryHeader();
res._magic = reader.ReadBytes(2);
res._version = reader.ReadByte();
res._flags = reader.ReadByte();
switch (res.Endianess)
{
case 1:
ReadSridExtent(reader, res);
break;
case 0:
ReadBESridExtent(reader, res);
break;
}
return(res);
}
private static void ReadBESridExtent(BinaryReader reader, GpkgBinaryHeader header)
{
header._srs_id = SwapByteOrder(reader.ReadInt32());
var ordinates = header.Ordinates;
if (ordinates == Ordinates.None)
{
header._extent = new Envelope(double.MinValue, double.MaxValue, double.MinValue, double.MaxValue);
header._zrange = Interval.Create(double.MinValue, double.MaxValue);
header._mrange = Interval.Create(double.MinValue, double.MaxValue);
return;
}
header._extent = new Envelope(SwapByteOrder(reader.ReadDouble()), SwapByteOrder(reader.ReadDouble()),
SwapByteOrder(reader.ReadDouble()), SwapByteOrder(reader.ReadDouble()));
if ((ordinates & Ordinates.Z) == Ordinates.Z)
{
header._zrange = Interval.Create(SwapByteOrder(reader.ReadDouble()), SwapByteOrder(reader.ReadDouble()));
}
if ((ordinates & Ordinates.M) == Ordinates.M)
{
header._mrange = Interval.Create(SwapByteOrder(reader.ReadDouble()), SwapByteOrder(reader.ReadDouble()));
}
}
private static void ReadSridExtent(BinaryReader reader, GpkgBinaryHeader header)
{
header._srs_id = reader.ReadInt32();
var ordinates = header.Ordinates;
if (ordinates == Ordinates.None)
{
header._extent = new Envelope();
header._zrange = Interval.Create();
header._mrange = Interval.Create();
return;
}
header._extent = new Envelope(reader.ReadDouble(), reader.ReadDouble(),
reader.ReadDouble(), reader.ReadDouble());
if ((ordinates & Ordinates.Z) == Ordinates.Z)
{
header._zrange = Interval.Create(reader.ReadDouble(), reader.ReadDouble());
}
if ((ordinates & Ordinates.M) == Ordinates.M)
{
header._mrange = Interval.Create(reader.ReadDouble(), reader.ReadDouble());
}
}
