/// <summary>
/// Initializes a new instance of the Shapefile class with the given parameters.
/// </summary>
/// <param name="filename">The filename of the shape file to read (with .shp).</param>
/// <param name="geometryFactory">The GeometryFactory to use when creating Geometry objects.</param>
public ShapefileReader(string filename, IGeometryFactory geometryFactory)
{
if (filename == null)
{
throw new ArgumentNullException("filename");
}
if (geometryFactory == null)
{
throw new ArgumentNullException("geometryFactory");
}
_filename = filename;
_geometryFactory = geometryFactory;
// read header information. note, we open the file, read the header information and then
// close the file. This means the file is not opened again until GetEnumerator() is requested.
// For each call to GetEnumerator() a new BinaryReader is created.
FileStream stream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read);
BigEndianBinaryReader shpBinaryReader = new BigEndianBinaryReader(stream);
_mainHeader = new ShapefileHeader(shpBinaryReader);
shpBinaryReader.Close();
}
/// <summary>
/// Initializes a new instance of the Shapefile class with the given parameters.
/// </summary>
/// <param name="filename">The filename of the shape file to read (with .shp).</param>
/// <param name="geometryFactory">The GeometryFactory to use when creating Geometry objects.</param>
public ShapefileReader(string filename, IGeometryFactory geometryFactory)
{
if (filename == null)
throw new ArgumentNullException("filename");
if (geometryFactory == null)
throw new ArgumentNullException("geometryFactory");
_filename = filename;
_geometryFactory = geometryFactory;
// read header information. note, we open the file, read the header information and then
// close the file. This means the file is not opened again until GetEnumerator() is requested.
// For each call to GetEnumerator() a new BinaryReader is created.
FileStream stream = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read);
BigEndianBinaryReader shpBinaryReader = new BigEndianBinaryReader(stream);
_mainHeader = new ShapefileHeader(shpBinaryReader);
shpBinaryReader.Close();
}
/// <summary>
/// Performs application-defined tasks associated with freeing,
/// releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
_shpBinaryReader.Close();
}
public ArchiveParser(byte[] archive)
{
this.data = archive;
archiveReader = new BigEndianBinaryReader(new MemoryStream(this.data));
DecompressedSize = archiveReader.ReadUInt24();
CompressedSize = archiveReader.ReadUInt24();
if (CompressedSize != DecompressedSize)
{
byte[] input = new byte[DecompressedSize - 6];
Array.Copy(this.data, 6, input, 0, DecompressedSize - 6);
byte[] dec = new byte[DecompressedSize - 6];
BZip2.Decompress(new MemoryStream(input), new MemoryStream(dec), true);
finalBuffer = dec;
archiveReader.Close();
archiveReader = new BigEndianBinaryReader(new MemoryStream(finalBuffer));
compressedAsWhole = true;
}
else
{
finalBuffer = this.data;
compressedAsWhole = false;
}
totalFiles = archiveReader.ReadUInt16();
int offset = 8 + totalFiles * 10;
for (int i = 0; i < totalFiles; i++)
{
identifiers.Add(archiveReader.ReadInt32());
decompressedSizes.Add(archiveReader.ReadUInt24());
compressedSizes.Add(archiveReader.ReadUInt24());
startOffsets.Add(offset);
Logger.Log("Found file: " + identifiers[i] + " at " + offset + ", size: " + compressedSizes[i], LogType.Success);
offset += compressedSizes[i];
files.Add(getFileAt(i));
}
}