Mercurial > dive4elements > gnv-client
view gnv-artifacts/src/main/java/de/intevation/gnv/chart/HorizontalProfileChart.java @ 507:45be952a3215
Solved some issues. Removed encoding problems while formatting coordinates (issue137) and use this format as subtitle in charts (issue136).
gnv-artifacts/trunk@590 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Thu, 21 Jan 2010 14:42:51 +0000 |
parents | 061355435075 |
children | 24a85678bd39 |
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package de.intevation.gnv.chart; import java.util.Collection; import java.util.Locale; import com.vividsolutions.jts.geom.Point; import com.vividsolutions.jts.io.WKTReader; import com.vividsolutions.jts.io.ParseException; import org.apache.log4j.Logger; import org.jfree.chart.ChartTheme; import org.jfree.chart.plot.PlotOrientation; import org.jfree.data.general.Series; import org.jfree.data.xy.XYSeries; import de.intevation.gnv.geobackend.base.Result; import de.intevation.gnv.utils.DistanceCalculator; /** * @author Ingo Weinzierl <ingo.weinzierl@intevation.de> */ public class HorizontalProfileChart extends VerticalProfileChart { private static Logger log = Logger.getLogger(HorizontalProfileChart.class); private static WKTReader wktReader = new WKTReader(); private Point lastPoint; private double distance; public HorizontalProfileChart( ChartLabels labels, ChartTheme theme, Collection parameters, Collection measurements, Collection dates, Collection result, Collection timeGaps, Locale locale, boolean linesVisible, boolean shapesVisible ) { super( labels, theme, parameters, measurements, dates, result, timeGaps, locale, linesVisible, shapesVisible ); this.PLOT_ORIENTATION = PlotOrientation.VERTICAL; this.distance = 0; } protected void gapDetection( Result[] results, Series series, int startPos, int endPos ) { log.debug("Start gap detection."); try { Point startValue = getPoint(results[startPos]); Point endValue = getPoint(results[endPos-1]); if (results[0].getInteger("DATAID") == 2) addGapsOnGrid(results, series, startPos, endPos); else addGaps( results, series, startValue, endValue, startPos, endPos ); } catch (ParseException pe) { log.warn( "Error while parsing points for gap detection. " + "No gaps for current series will be detected." ); } log.debug("Gap detection finished."); } protected void addValue(Result row, Series series) { try { Point point = (Point) wktReader.read(row.getString("SHAPE")); if (lastPoint != null) distance = distance + DistanceCalculator.calculateDistance( lastPoint, point ); lastPoint = point; ((XYSeries) series).add( distance, row.getDouble("YORDINATE") ); } catch(ParseException pe) { log.warn("No data found while parsing."); } } protected void addSeries(Series series, String label, int idx) { super.addSeries(series, label, idx); // reset values used by current series for next series lastPoint = null; distance = 0; } protected String createSeriesName( String breakPoint1, String breakPoint2, String breakPoint3 ) { log.debug("create seriesname of horizontalprofile chart"); return super.createSeriesName( breakPoint1, breakPoint2, breakPoint3) + " " + findValueTitle(dates, breakPoint3); } protected void addGapsOnGrid( Result[] results, Series series, int startPos, int endPos ) { String axis = getDependendAxisName( results[startPos], results[startPos+1] ); double range = 0; double distance = 0; int last = 0; int current = 0; Point lastPoint = null; Point currentPoint = null; for (int i = startPos+1; i < endPos; i++) { try { last = results[i-1].getInteger(axis); lastPoint = getPoint(results[i-1]); current = results[i].getInteger(axis); currentPoint = getPoint(results[i]); distance = DistanceCalculator.calculateDistance( lastPoint, currentPoint ); boolean detected = gridDetection(last, current); if (detected) { log.debug( "Gap detected on grid between " + range + " and " + (range+distance) ); ((XYSeries) series).add(range+0.0001, null); } range += distance; } catch (ParseException pe) { log.warn("Error while parsing point for gap detection.", pe); } } } protected void addGaps( Result[] results, Series series, Point startValue, Point endValue, int startPos, int endPos ) { double range = 0; Point last = null; Point now = null; for (int i = startPos+1; i < endPos; i++) { boolean detected = false; try { last = (Point) getPoint(results[i-1]); now = (Point) getPoint(results[i]); // gap detection for more than GAP_MAX_VALUES values if (results.length > GAP_MAX_VALUES) detected = simpleDetection(startValue, endValue, last, now); // gap detection for less than GAP_MAX_VALUES values else detected = specialDetection( startValue, endValue, last, now, results.length ); // gap detected, insert null value to break line if (detected) { log.info("Gap after " + range); double x = range + 0.0001; ((XYSeries)series).add(x, null); } range += DistanceCalculator.calculateDistance(last,now); } catch (ParseException pe) { log.warn("Error while parsing point."); } } } protected boolean simpleDetection( Point start, Point end, Point last, Point current ) { double delta = DistanceCalculator.calculateDistance(start, end); double deltaSmall = DistanceCalculator.calculateDistance(last,current); return (deltaSmall > (delta / 100 * PERCENTAGE)); } protected boolean specialDetection( Point start, Point end, Point last, Point current, int count ) { double delta = Math.abs( DistanceCalculator.calculateDistance(end, start) ); double smallDelta = Math.abs( DistanceCalculator.calculateDistance(current, last) ); return (smallDelta > (3.0 / (count - 1) * delta)); } @Override protected String getDependendAxisName(Result first, Result second) { if (first.getInteger("IPOSITION") == second.getInteger("IPOSITION")) return "JPOSITION"; return "IPOSITION"; } private Point getPoint(Result result) throws ParseException { return (Point) wktReader.read(result.getString("SHAPE")); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :