public void TestRoundTrip(string filename)
{
//
// can't round trip since I added the ToExternal/ ToInternal to the shapefile readers and writers.
//
PrecisionModel pm = new PrecisionModel();
GeometryFactory geometryFactory = new GeometryFactory(pm,-1);
int differenceCount=0;
string testName="";
string srcShpFilename= Global.GetUnitTestRootDirectory()+@"\IO\Shapefile\Testfiles\"+filename;
string destShpFilename = Global.GetUnitTestRootDirectory()+@"\IO\Shapefile\Testfiles\testroundtrip"+filename;
// do the round trip
ShapefileReader shpReader = new ShapefileReader(srcShpFilename+".shp", geometryFactory);
GeometryCollection shapes = shpReader.ReadAll();
ShapefileWriter.Write(destShpFilename,shapes, geometryFactory);
// perfom binary compare on the .shp
testName = String.Format("Test round trip .shp - {0}",filename);
differenceCount = Compare.BinaryCompare(srcShpFilename+".shp", destShpFilename+".shp");
Assertion.AssertEquals(testName,0,differenceCount);
// perfom binary compare on the .shx file
testName = String.Format("Test round trip .shx - {0}",filename);
differenceCount = Compare.BinaryCompare(srcShpFilename+".shx", destShpFilename+".shx");
Assertion.AssertEquals(testName,0,differenceCount);
}
/// <summary>
/// Test getting and setting the properties
/// </summary>
public void Test_MultipleRead()
{
PrecisionModel pm = new PrecisionModel(1, 0, 0);
GeometryFactory geometryFactory = new GeometryFactory(pm, -1);
string filename = Global.GetUnitTestRootDirectory() + @"\IO\Shapefile\Testfiles\statepop.shp";
// tests two readers reading the file as the same time.
Geotools.IO.ShapefileReader shpFile = new Geotools.IO.ShapefileReader(filename, geometryFactory);
Geotools.IO.ShapefileReader shpFile2 = new Geotools.IO.ShapefileReader(filename, geometryFactory);
foreach (object row in shpFile)
{
Assertion.AssertNotNull(row);
foreach (object row2 in shpFile2)
{
Assertion.AssertNotNull(row2);
}
}
}
//byte[] _wkb;
// GeometryWKBWriter _wkbWriter;
#region Constructors
/// <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;
}
/// <summary>
/// Test getting and setting the properties
/// </summary>
public void Test_MultipleRead()
{
PrecisionModel pm = new PrecisionModel(1,0,0);
GeometryFactory geometryFactory = new GeometryFactory(pm,-1);
string filename= Global.GetUnitTestRootDirectory()+@"\IO\Shapefile\Testfiles\statepop.shp";
// tests two readers reading the file as the same time.
Geotools.IO.ShapefileReader shpFile = new Geotools.IO.ShapefileReader(filename, geometryFactory);
Geotools.IO.ShapefileReader shpFile2 = new Geotools.IO.ShapefileReader(filename, geometryFactory);
foreach(object row in shpFile)
{
Assertion.AssertNotNull(row);
foreach(object row2 in shpFile2)
{
Assertion.AssertNotNull(row2);
}
}
}
/// <summary>
/// Initializes a new instance of the ShapefileEnumerator class.
/// </summary>
public ShapefileEnumerator(ShapefileReader shapefile)
{
_parent = shapefile;
// create a file stream for each enumerator that is given out. This allows the same file
// to have one or more enumerator. If we used the parents stream - than only one IEnumerator
// could be given out.
FileStream stream = new FileStream(_parent._filename, System.IO.FileMode.Open, FileAccess.Read, FileShare.Read);
_shpBinaryReader = new BigEndianBinaryReader(stream);
// skip header - since parent has already read this.
_shpBinaryReader.ReadBytes(100);
ShapeType type = _parent._mainHeader.ShapeType;
_handler = Shapefile.GetShapeHandler(type);
if (_handler == null)
{
throw new NotSupportedException("Unsuported shape type:" + type);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ShapefileEnumerator">ShapefileEnumerator</see> class.
/// </summary>
public ShapefileEnumerator(ShapefileReader shapefile)
{
_parent = shapefile;
// create a file stream for each enumerator that is given out. This allows the same file
// to have one or more enumerator. If we used the parents stream only one IEnumerator
// could be given out.
_shpBinaryReader = new BigEndianBinaryReader(new FileStream(_parent._filename, System.IO.FileMode.Open, FileAccess.Read, FileShare.Read));
// skip header - since parent has already read this.
_shpBinaryReader.ReadBytes(100);
ShapeType type = _parent._mainHeader.ShapeType;
_handler = Shapefile.GetShapeHandler(type);
if (_handler == null)
{
throw new NotSupportedException("Unsuported shape type:" + type);
}
}
/// <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;
}
