/// <summary> /// Write the enumeration of features to shapefile (shp, shx and dbf) /// </summary> /// <param name="filename">Filename to create</param> /// <param name="features">Enumeration of features to write, features will be enumerated once</param> /// <param name="fields">Fields that should be written, only those attributes specified here will be mapped from the feature attributetable while writing</param> /// <param name="shapeGeometryType">Type of geometries shapefile</param> /// <param name="dbfEncoding">Optional Encoding to be used when writing the DBF-file (default Windows-1252)</param> public static void WriteFeatures(string filename, IEnumerable <IFeature> features, DbaseFieldDescriptor[] fields, ShapeGeometryType shapeGeometryType, Encoding dbfEncoding = null) { // Set default encoding if not specified if (dbfEncoding == null) { dbfEncoding = DbaseEncodingUtility.GetEncodingForCodePageIdentifier(1252); } // Open shapefile and dbase stream writers using (var shpWriter = new ShapefileWriter(Path.ChangeExtension(filename, ".shp"), shapeGeometryType)) { using (var dbfWriter = new DbaseFileWriter(Path.ChangeExtension(filename, ".dbf"), dbfEncoding)) { var dbfHeader = new DbaseFileHeader(dbfEncoding); foreach (var field in fields) { dbfHeader.AddColumn(field.Name, field.DbaseType, field.Length, field.DecimalCount); } dbfWriter.Write(dbfHeader); int numFeatures = 0; string[] fieldNames = Array.ConvertAll(fields, field => field.Name); object[] values = new object[fieldNames.Length]; foreach (var feature in features) { shpWriter.Write(feature.Geometry); for (int i = 0; i < fieldNames.Length; i++) { values[i] = feature.Attributes[fieldNames[i]]; } dbfWriter.Write(values); numFeatures++; } // set the number of records dbfHeader.NumRecords = numFeatures; // Update the header dbfWriter.Write(dbfHeader); // write the end of dbase file marker dbfWriter.WriteEndOfDbf(); // close the dbase stream dbfWriter.Close(); } } }
/// <summary> /// Initializes a new instance of the <see cref="ShapefileDataWriter"/> class. /// </summary> /// <param name="fileName">File path without any extension</param> /// <param name="geometryFactory"></param> public ShapefileDataWriter(string fileName, IGeometryFactory geometryFactory) : this(fileName, geometryFactory, DbaseEncodingUtility.GetEncodingForCodePageIdentifier(1252)) { }