public static void add(Object tag, Geometry geom, String msg) { if (!Debug.isDebugging()) return; FeatureDataset fd = getDebugFeatureDataset(tag); Feature feature = new BasicFeature(fd.getFeatureSchema()); feature.setGeometry(geom); feature.setAttribute(MESG_ATTR_NAME, msg); fd.add(feature); }
public static Feature createLineSegmentFeature( FeatureSchema fs, Coordinate p0, Coordinate p1, String msg) { Feature feature = new BasicFeature(fs); LineString lineSeg = fact.createLineString(new Coordinate[] {p0, p1}); feature.setGeometry(lineSeg); feature.setAttribute(MESG_ATTR_NAME, msg); return feature; }
/** * look at all the data in the column of the featurecollection, and find the largest string! * * @param fc features to look at * @param attributeNumber which of the column to test. */ int findMaxStringLength(FeatureCollection fc, int attributeNumber) { int l; int maxlen = 0; Feature f; for (Iterator i = fc.iterator(); i.hasNext(); ) { f = (Feature) i.next(); l = f.getString(attributeNumber).length(); if (l > maxlen) { maxlen = l; } } return maxlen; }
/** * Write a dbf file with the information from the featureCollection. * * @param featureCollection column data from collection * @param fname name of the dbf file to write to */ void writeDbf(FeatureCollection featureCollection, String fname) throws Exception { DbfFileWriter dbf; FeatureSchema fs; int t; int f; int u; int num; fs = featureCollection.getFeatureSchema(); // -1 because one of the columns is geometry DbfFieldDef[] fields = new DbfFieldDef[fs.getAttributeCount() - 1]; // dbf column type and size f = 0; for (t = 0; t < fs.getAttributeCount(); t++) { AttributeType columnType = fs.getAttributeType(t); String columnName = fs.getAttributeName(t); if (columnType == AttributeType.INTEGER) { fields[f] = new DbfFieldDef(columnName, 'N', 16, 0); f++; } else if (columnType == AttributeType.DOUBLE) { fields[f] = new DbfFieldDef(columnName, 'N', 33, 16); f++; } else if (columnType == AttributeType.STRING) { int maxlength = findMaxStringLength(featureCollection, t); if (maxlength > 255) { throw new Exception( "ShapefileWriter does not support strings longer than 255 characters"); } fields[f] = new DbfFieldDef(columnName, 'C', maxlength, 0); f++; } else if (columnType == AttributeType.DATE) { fields[f] = new DbfFieldDef(columnName, 'D', 8, 0); f++; } else if (columnType == AttributeType.GEOMETRY) { // do nothing - the .shp file handles this } else { throw new Exception("Shapewriter: unsupported AttributeType found in featurecollection."); } } // write header dbf = new DbfFileWriter(fname); dbf.writeHeader(fields, featureCollection.size()); // write rows num = featureCollection.size(); List features = featureCollection.getFeatures(); for (t = 0; t < num; t++) { // System.out.println("dbf: record "+t); Feature feature = (Feature) features.get(t); Vector DBFrow = new Vector(); // make data for each column in this feature (row) for (u = 0; u < fs.getAttributeCount(); u++) { AttributeType columnType = fs.getAttributeType(u); if (columnType == AttributeType.INTEGER) { Object a = feature.getAttribute(u); if (a == null) { DBFrow.add(new Integer(0)); } else { DBFrow.add((Integer) a); } } else if (columnType == AttributeType.DOUBLE) { Object a = feature.getAttribute(u); if (a == null) { DBFrow.add(new Double(0.0)); } else { DBFrow.add((Double) a); } } else if (columnType == AttributeType.DATE) { Object a = feature.getAttribute(u); if (a == null) { DBFrow.add(""); } else { DBFrow.add(DbfFile.DATE_PARSER.format((Date) a)); } } else if (columnType == AttributeType.STRING) { Object a = feature.getAttribute(u); if (a == null) { DBFrow.add(new String("")); } else { // MD 16 jan 03 - added some defensive programming if (a instanceof String) { DBFrow.add(a); } else { DBFrow.add(a.toString()); } } } } dbf.writeRecord(DBFrow); } dbf.close(); }