+++ /dev/null
-package tim.prune.function;
-
-import java.io.InputStream;
-import java.net.URL;
-import java.util.ArrayList;
-
-import javax.xml.parsers.SAXParser;
-import javax.xml.parsers.SAXParserFactory;
-
-import tim.prune.App;
-import tim.prune.I18nManager;
-import tim.prune.data.Coordinate;
-import tim.prune.data.DataPoint;
-import tim.prune.data.Distance;
-import tim.prune.data.Field;
-import tim.prune.data.Latitude;
-import tim.prune.data.Longitude;
-import tim.prune.function.search.GenericDownloaderFunction;
-import tim.prune.function.search.SearchResult;
-
-/**
- * Function to load nearby point information from OSM
- */
-public class SearchOsmPoisFunction extends GenericDownloaderFunction
-{
- /** Maximum distance from point in m */
- private static final int MAX_DISTANCE = 250;
- /** Coordinates to search for */
- private double _searchLatitude = 0.0, _searchLongitude = 0.0;
-
-
- /**
- * Constructor
- * @param inApp App object
- */
- public SearchOsmPoisFunction(App inApp) {
- super(inApp);
- }
-
- /**
- * @return name key
- */
- public String getNameKey() {
- return "function.searchosmpois";
- }
-
- /**
- * @param inColNum index of column, 0 or 1
- * @return key for this column
- */
- protected String getColumnKey(int inColNum)
- {
- if (inColNum == 0) return "dialog.osmpois.column.name";
- return "dialog.osmpois.column.type";
- }
-
-
- /**
- * Run method to get the nearby points in a separate thread
- */
- public void run()
- {
- _statusLabel.setText(I18nManager.getText("confirm.running"));
- // Get coordinates from current point (if any) or from centre of screen
- DataPoint point = _app.getTrackInfo().getCurrentPoint();
- if (point == null)
- {
- double[] coords = _app.getViewport().getBounds();
- _searchLatitude = (coords[0] + coords[2]) / 2.0;
- _searchLongitude = (coords[1] + coords[3]) / 2.0;
- }
- else
- {
- _searchLatitude = point.getLatitude().getDouble();
- _searchLongitude = point.getLongitude().getDouble();
- }
-
- // Submit search (language not an issue here)
- submitSearch(_searchLatitude, _searchLongitude);
-
- // Set status label according to error or "none found", leave blank if ok
- if (_errorMessage == null && _trackListModel.isEmpty()) {
- _errorMessage = I18nManager.getText("dialog.osmpois.nonefound");
- }
- _statusLabel.setText(_errorMessage == null ? "" : _errorMessage);
- }
-
- /**
- * Submit the search for the given parameters
- * @param inLat latitude
- * @param inLon longitude
- */
- private void submitSearch(double inLat, double inLon)
- {
- String coords = "around:" + MAX_DISTANCE + "," + inLat + "," + inLon;
- String urlString = "http://overpass-api.de/api/interpreter?data=("
- + "node(" + coords + ")[\"amenity\"][\"name\"];"
- + "node(" + coords + ")[\"railway\"][\"name\"];"
- + "node(" + coords + ")[\"highway\"][\"name\"];"
- + ");out%20qt;";
- //System.out.println(urlString);
- // Parse the returned XML with a special handler
- SearchOsmPoisXmlHandler xmlHandler = new SearchOsmPoisXmlHandler();
- InputStream inStream = null;
-
- try
- {
- URL url = new URL(urlString);
- SAXParser saxParser = SAXParserFactory.newInstance().newSAXParser();
- inStream = url.openStream();
- saxParser.parse(inStream, xmlHandler);
- }
- catch (Exception e) {
- _errorMessage = e.getClass().getName() + " - " + e.getMessage();
- }
- // Close stream and ignore errors
- try {
- inStream.close();
- } catch (Exception e) {}
-
- // Calculate distances for each returned point
- DataPoint searchPoint = new DataPoint(new Latitude(_searchLatitude, Coordinate.FORMAT_DECIMAL_FORCE_POINT),
- new Longitude(_searchLongitude, Coordinate.FORMAT_DECIMAL_FORCE_POINT), null);
- for (SearchResult result : xmlHandler.getPointList())
- {
- Latitude pointLat = new Latitude(result.getLatitude());
- Longitude pointLon = new Longitude(result.getLongitude());
- DataPoint foundPoint = new DataPoint(pointLat, pointLon, null);
- double dist = DataPoint.calculateRadiansBetween(searchPoint, foundPoint);
- result.setLength(Distance.convertRadiansToDistance(dist));
- }
-
- // TODO: maybe limit number of results using MAX_RESULTS
- // Add track list to model
- ArrayList<SearchResult> pointList = xmlHandler.getPointList();
- _trackListModel.addTracks(pointList, true);
- _trackListModel.setShowPointTypes(true);
-
- // Show error message if any
- if (_trackListModel.isEmpty())
- {
- String error = xmlHandler.getErrorMessage();
- if (error != null && !error.equals(""))
- {
- _app.showErrorMessageNoLookup(getNameKey(), error);
- _errorMessage = error;
- }
- }
- }
-
- /**
- * Load the selected point(s)
- */
- protected void loadSelected()
- {
- // Find the rows selected in the table and get the corresponding coords
- int numSelected = _trackTable.getSelectedRowCount();
- if (numSelected < 1) return;
- int[] rowNums = _trackTable.getSelectedRows();
- for (int i=0; i<numSelected; i++)
- {
- int rowNum = rowNums[i];
- if (rowNum >= 0 && rowNum < _trackListModel.getRowCount())
- {
- String lat = _trackListModel.getTrack(rowNum).getLatitude();
- String lon = _trackListModel.getTrack(rowNum).getLongitude();
- if (lat != null && lon != null)
- {
- DataPoint point = new DataPoint(new Latitude(lat), new Longitude(lon), null);
- point.setFieldValue(Field.WAYPT_NAME, _trackListModel.getTrack(rowNum).getTrackName(), false);
- _app.createPoint(point);
- }
- }
- }
- // Close the dialog
- _cancelled = true;
- _dialog.dispose();
- }
-}
projects / GpsPrune.git / blobdiff