public static bool TestHelper(string wkt)
{
PrecisionModel pm = new PrecisionModel(1, 0, 0);
GeometryFactory fact = new GeometryFactory(pm, 0);
//read wkt
Geometry a = new GeometryWKTReader(fact).Create(wkt);
//write wkb
FileStream fs = new FileStream("TestFile.wkb", FileMode.Create);
BinaryWriter bw = new BinaryWriter(fs);
GeometryWKBWriter bWriter = new GeometryWKBWriter(bw, fact);
bWriter.Write(a, WKBByteOrder.Ndr);
bw.Close();
fs.Close();
//read wkb
fs = new FileStream("TestFile.wkb", FileMode.Open);
byte[] bytes = new byte[fs.Length];
for(int i = 0; i < fs.Length; i++)
{
bytes[i] = (byte)fs.ReadByte();
}
GeometryWKBReader bReader = new GeometryWKBReader(fact);
Geometry geom = bReader.Create(bytes);
fs.Close();
//write to wkt & compare with original text.
bool results = ( Compare.WktStrings(wkt,a.toText()));
return results;
}
/// <summary>
/// Initializes a new instance of the ShapefileDataReader class.
/// </summary>
/// <param name="filename">The shapefile to read (minus the .shp extension)</param>
///<param name="geometryFactory">The GeometryFactory to use.</param>
public ShapefileDataReader(string filename, GeometryFactory geometryFactory)
{
if (filename == null)
{
throw new ArgumentNullException("filename");
}
if (geometryFactory == null)
{
throw new ArgumentNullException("geometryFactory");
}
_geometryFactory = geometryFactory;
_open = true;
if (filename.ToLower().EndsWith(".shp"))
{
filename = filename.ToLower().Replace(".shp", "");
}
_dbfReader = new DbaseFileReader(filename + ".dbf");
_shpReader = new ShapefileReader(filename + ".shp", geometryFactory);
_dbfHeader = _dbfReader.GetHeader();
_recordCount = _dbfHeader.NumRecords;
_wkbWriter = new GeometryWKBWriter(_geometryFactory);
// copy dbase fields to our own array. Insert into the first position, the shape column
_dbaseFields = new DbaseFieldDescriptor[_dbfHeader.Fields.Length + 1];
_dbaseFields[0] = DbaseFieldDescriptor.ShapeField();
//_dbaseFields[1] = DbaseFieldDescriptor.IdField();
for (int i = 0; i < _dbfHeader.Fields.Length; i++)
{
_dbaseFields[i + 1] = _dbfHeader.Fields[i];
}
_shpHeader = _shpReader.Header;
_dbfEnumerator = _dbfReader.GetEnumerator();
_shpEnumerator = _shpReader.GetEnumerator();
_moreRecords = true;
}