public void TestReadingCrustalTestShapeFile()
{
// Original file with characters '°' in NAME field.
using (ShapefileDataReader reader = new ShapefileDataReader("crustal_test_bugged", Factory))
{
int length = reader.DbaseHeader.NumFields;
while (reader.Read())
{
Debug.WriteLine(reader.GetValue(length - 1));
}
}
// Removed NAME field characters
using (ShapefileDataReader reader = new ShapefileDataReader("crustal_test", Factory))
{
int length = reader.DbaseHeader.NumFields;
while (reader.Read())
{
Debug.WriteLine(reader.GetValue(length - 1));
}
}
}
private void ReadFromShapeFile()
{
ArrayList featureCollection = new ArrayList();
string filename = @"country";
if (!File.Exists(filename + ".dbf"))
throw new FileNotFoundException(filename + " not found at " + Environment.CurrentDirectory);
ShapefileDataReader dataReader = new ShapefileDataReader(filename, new GeometryFactory());
while (dataReader.Read())
{
Feature feature = new Feature();
feature.Geometry = dataReader.Geometry;
int length = dataReader.DbaseHeader.NumFields;
string[] keys = new string[length];
for (int i = 0; i < length; i++)
keys[i] = dataReader.DbaseHeader.Fields[i].Name;
feature.Attributes = new AttributesTable();
for (int i = 0; i < length; i++)
{
object val = dataReader.GetValue(i);
feature.Attributes.AddAttribute(keys[i], val);
}
featureCollection.Add(feature);
}
int index = 0;
Console.WriteLine("Elements = " + featureCollection.Count);
foreach (Feature feature in featureCollection)
{
Console.WriteLine("Feature " + index++);
AttributesTable table = feature.Attributes as AttributesTable;
foreach (string name in table.GetNames())
Console.WriteLine(name + ": " + table[name]);
}
// Test write with stub header
string file = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"../../../NetTopologySuite.Samples.Shapefiles/testWriteStubHeader");
if (File.Exists(file + ".shp")) File.Delete(file + ".shp");
if (File.Exists(file + ".shx")) File.Delete(file + ".shx");
if (File.Exists(file + ".dbf")) File.Delete(file + ".dbf");
ShapefileDataWriter dataWriter = new ShapefileDataWriter(file);
dataWriter.Header = ShapefileDataWriter.GetHeader(featureCollection[0] as Feature, featureCollection.Count);
dataWriter.Write(featureCollection);
// Test write with header from a existing shapefile
file = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"../../../NetTopologySuite.Samples.Shapefiles/testWriteShapefileHeader");
if (File.Exists(file + ".shp")) File.Delete(file + ".shp");
if (File.Exists(file + ".shx")) File.Delete(file + ".shx");
if (File.Exists(file + ".dbf")) File.Delete(file + ".dbf");
dataWriter = new ShapefileDataWriter(file);
dataWriter.Header = ShapefileDataWriter.GetHeader(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"../../../NetTopologySuite.Samples.Shapefiles/country.dbf"));
dataWriter.Write(featureCollection);
}