--- /dev/null
+package tim.prune.function.browser;
+
+import java.text.DecimalFormat;
+import java.text.NumberFormat;
+import java.util.Locale;
+
+import tim.prune.I18nManager;
+import tim.prune.data.DataPoint;
+import tim.prune.data.DoubleRange;
+import tim.prune.data.TrackInfo;
+
+/**
+ * Class to manage the generation of map urls
+ * for display in an external browser
+ */
+public abstract class UrlGenerator
+{
+ /** Number formatter for five dp */
+ private static final NumberFormat FIVE_DP = NumberFormat.getNumberInstance(Locale.UK);
+ // Select the UK locale for this formatter so that decimal point is always used (not comma)
+ static {
+ if (FIVE_DP instanceof DecimalFormat) ((DecimalFormat) FIVE_DP).applyPattern("0.00000");
+ }
+
+ /** Constant for Google Maps */
+ public static final int MAP_SOURCE_GOOGLE = 0;
+ /** Constant for Open Street Maps */
+ public static final int MAP_SOURCE_OSM = 1;
+ /** Constant for Mapquest */
+ public static final int MAP_SOURCE_MAPQUEST = 2;
+ /** Constant for Yahoo */
+ public static final int MAP_SOURCE_YAHOO = 3;
+
+ // TODO: Add other map sources, eg MSN, search.ch ?
+
+ /**
+ * Generate a URL for the given source and track info
+ * @param inSource source to use, either google or openstreetmap
+ * @param inTrackInfo track info
+ * @return url for map
+ */
+ public static String generateUrl(int inSource, TrackInfo inTrackInfo)
+ {
+ if (inSource == MAP_SOURCE_GOOGLE) {
+ return generateGoogleUrl(inTrackInfo);
+ }
+ else if (inSource == MAP_SOURCE_MAPQUEST) {
+ return generateMapquestUrl(inTrackInfo);
+ }
+ else if (inSource == MAP_SOURCE_YAHOO) {
+ return generateYahooUrl(inTrackInfo);
+ }
+ return generateOpenStreetMapUrl(inTrackInfo);
+ }
+
+ /**
+ * Generate a url for Google maps
+ * @param inTrackInfo track information
+ * @return URL
+ */
+ private static String generateGoogleUrl(TrackInfo inTrackInfo)
+ {
+ // Check if any data to display
+ if (inTrackInfo == null || inTrackInfo.getTrack() == null || inTrackInfo.getTrack().getNumPoints() < 1)
+ {
+ return null;
+ }
+ double medianLat = getMedianValue(inTrackInfo.getTrack().getLatRange());
+ double medianLon = getMedianValue(inTrackInfo.getTrack().getLonRange());
+ double latSpan = getSpan(inTrackInfo.getTrack().getLatRange());
+ double lonSpan = getSpan(inTrackInfo.getTrack().getLonRange());
+ // Build basic url with centre position and span
+ String url = "http://" + I18nManager.getText("url.googlemaps")
+ + "/?ll=" + FIVE_DP.format(medianLat) + "," + FIVE_DP.format(medianLon)
+ + "&spn=" + FIVE_DP.format(latSpan) + "," + FIVE_DP.format(lonSpan);
+ DataPoint currPoint = inTrackInfo.getCurrentPoint();
+ // Add selected point, if any
+ if (currPoint != null) {
+ url = url + "&q=" + FIVE_DP.format(currPoint.getLatitude().getDouble()) + ","
+ + FIVE_DP.format(currPoint.getLongitude().getDouble());
+ if (currPoint.getWaypointName() != null) {
+ url = url + "(" + currPoint.getWaypointName() + ")";
+ }
+ }
+ //System.out.println(url);
+ return url;
+ }
+
+ /**
+ * Generate a url for Open Street Map
+ * @param inTrackInfo track information
+ * @return URL
+ */
+ private static String generateOpenStreetMapUrl(TrackInfo inTrackInfo)
+ {
+ // Check if any data to display
+ if (inTrackInfo == null || inTrackInfo.getTrack() == null || inTrackInfo.getTrack().getNumPoints() < 1)
+ {
+ return null;
+ }
+ DoubleRange latRange = inTrackInfo.getTrack().getLatRange();
+ DoubleRange lonRange = inTrackInfo.getTrack().getLonRange();
+ // Build basic url using min and max lat and long
+ String url = "http://openstreetmap.org/?minlat=" + FIVE_DP.format(latRange.getMinimum())
+ + "&maxlat=" + FIVE_DP.format(latRange.getMaximum())
+ + "&minlon=" + FIVE_DP.format(lonRange.getMinimum()) + "&maxlon=" + FIVE_DP.format(lonRange.getMaximum());
+ DataPoint currPoint = inTrackInfo.getCurrentPoint();
+ // Add selected point, if any (no way to add point name?)
+ if (currPoint != null) {
+ url = url + "&mlat=" + FIVE_DP.format(currPoint.getLatitude().getDouble())
+ + "&mlon=" + FIVE_DP.format(currPoint.getLongitude().getDouble());
+ }
+ return url;
+ }
+
+ /**
+ * Generate a url for Mapquest maps
+ * @param inTrackInfo track information
+ * @return URL
+ */
+ private static String generateMapquestUrl(TrackInfo inTrackInfo)
+ {
+ // Check if any data to display
+ if (inTrackInfo == null || inTrackInfo.getTrack() == null || inTrackInfo.getTrack().getNumPoints() < 1)
+ {
+ return null;
+ }
+ double medianLat = getMedianValue(inTrackInfo.getTrack().getLatRange());
+ double medianLon = getMedianValue(inTrackInfo.getTrack().getLonRange());
+ // Build basic url with centre position
+ String url = "http://atlas.mapquest.com/maps/map.adp?latlongtype=decimal&latitude="
+ + FIVE_DP.format(medianLat) + "&longitude=" + FIVE_DP.format(medianLon);
+ return url;
+ }
+
+
+ /**
+ * Generate a url for Yahoo maps
+ * @param inTrackInfo track information
+ * @return URL
+ */
+ private static String generateYahooUrl(TrackInfo inTrackInfo)
+ {
+ // Check if any data to display
+ if (inTrackInfo == null || inTrackInfo.getTrack() == null || inTrackInfo.getTrack().getNumPoints() < 1)
+ {
+ return null;
+ }
+ double medianLat = getMedianValue(inTrackInfo.getTrack().getLatRange());
+ double medianLon = getMedianValue(inTrackInfo.getTrack().getLonRange());
+ // Build basic url with centre position
+ String url = "http://maps.yahoo.com/#lat=" + FIVE_DP.format(medianLat)
+ + "&lon=" + FIVE_DP.format(medianLon) + "&zoom=13";
+ return url;
+ }
+
+/**
+ * Get the median value from the given lat/long range
+ * @param inRange range of values
+ * @return median value
+ */
+ private static double getMedianValue(DoubleRange inRange)
+ {
+ return (inRange.getMaximum() + inRange.getMinimum()) / 2.0;
+ }
+
+ /**
+ * Get the span of the given lat/long range
+ * @param inRange range of values
+ * @return span
+ */
+ private static double getSpan(DoubleRange inRange)
+ {
+ return inRange.getMaximum() - inRange.getMinimum();
+ }
+}
projects / GpsPrune.git / blobdiff