Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/exports/LongitudinalSectionGenerator.java @ 1081:d10efbe2e5c0
Minor cosmetics.
flys-artifacts/trunk@2578 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Thu, 25 Aug 2011 10:47:55 +0000 |
parents | 3067e700fc13 |
children | 73794985a899 |
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package de.intevation.flys.exports; import java.util.ArrayList; import java.util.List; import org.apache.log4j.Logger; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.title.TextTitle; import org.jfree.data.Range; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; import org.jfree.ui.TextAnchor; import org.w3c.dom.Document; import de.intevation.artifacts.Artifact; import de.intevation.artifactdatabase.state.Facet; import de.intevation.flys.artifacts.FLYSArtifact; import de.intevation.flys.artifacts.model.FacetTypes; import de.intevation.flys.artifacts.model.WQKms; import de.intevation.flys.model.Annotation; import de.intevation.flys.jfree.StickyAxisAnnotation; /** * An OutGenerator that generates discharge curves. * * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class LongitudinalSectionGenerator extends XYChartGenerator implements FacetTypes { /** The logger that is used in this generator. */ private static Logger logger = Logger.getLogger(LongitudinalSectionGenerator.class); public static final String I18N_CHART_TITLE = "chart.longitudinal.section.title"; public static final String I18N_ANNOTATIONS_LABEL = "chart.longitudinal.annotations.label"; public static final String I18N_CHART_SUBTITLE = "chart.longitudinal.section.subtitle"; public static final String I18N_XAXIS_LABEL = "chart.longitudinal.section.xaxis.label"; public static final String I18N_YAXIS_LABEL = "chart.longitudinal.section.yaxis.label"; public static final String I18N_2YAXIS_LABEL = "chart.longitudinal.section.yaxis.second.label"; public static final String I18N_CHART_TITLE_DEFAULT = "W-L\u00e4ngsschnitt"; public static final String I18N_XAXIS_LABEL_DEFAULT = "km"; public static final String I18N_YAXIS_LABEL_DEFAULT = "W [NN + m]"; public static final String I18N_2YAXIS_LABEL_DEFAULT = "Q [m\u00b3/s]"; protected boolean inverted; /** List of annotations to insert in plot. */ protected List<Annotation> annotations; /** Pseudo-Dataseries to have a legend for the annotations. */ protected XYSeriesCollection pseudoAnnotationData = null; public LongitudinalSectionGenerator() { super(); annotations = new ArrayList<Annotation>(); } protected String getChartTitle() { return msg(I18N_CHART_TITLE, I18N_CHART_TITLE_DEFAULT); } public boolean isInverted() { return inverted; } public void setInverted(boolean inverted) { this.inverted = inverted; } @Override protected void addSubtitles(JFreeChart chart) { double[] dist = getRange(); Object[] args = new Object[] { getRiverName(), dist[0], dist[1] }; String subtitle = msg(I18N_CHART_SUBTITLE, "", args); chart.addSubtitle(new TextTitle(subtitle)); } @Override public JFreeChart generateChart() { JFreeChart c = super.generateChart(); XYPlot p = (XYPlot) c.getPlot(); redoAnnotations(p, p.getDomainAxis()); return c; } protected String getXAxisLabel() { return msg(I18N_XAXIS_LABEL, I18N_XAXIS_LABEL_DEFAULT); } protected String getYAxisLabel() { return msg(I18N_YAXIS_LABEL, I18N_YAXIS_LABEL_DEFAULT); } protected void adjustAxes(XYPlot plot) { super.adjustAxes(plot); NumberAxis qAxis = new NumberAxis( msg(I18N_2YAXIS_LABEL, I18N_2YAXIS_LABEL_DEFAULT)); plot.setRangeAxis(1, qAxis); invertXAxis(plot.getDomainAxis()); } /** * Remove all annotations from plot and re-insert them at an approximately * okay position. The followed approach is naive but side-effect free. * * @param plot the plot. * @param axis the value axis. */ protected void redoAnnotations(XYPlot plot, ValueAxis axis) { plot.clearAnnotations(); // TODO Position calculation could/should be done in // the StickyAxisAnnotation-Implementation itself. ValueAxis yAxis = plot.getRangeAxis(); float posY = 140.f; if (yAxis != null) { posY = (float) yAxis.getRange().getLowerBound(); // Add some (2%) space between Text and axis. posY += 0.02f * (yAxis.getRange().getUpperBound() - yAxis.getRange().getLowerBound()); } // Add all annotations. for (Annotation a: annotations) { float posX = (float) a.getRange().getA().doubleValue(); String text = a.getPosition().getValue(); StickyAxisAnnotation ta = new StickyAxisAnnotation(text, posX, posY); double rotation = 270.0f * (Math.PI / 180.0f); ta.setRotationAngle(rotation); ta.setRotationAnchor(TextAnchor.CENTER_LEFT); ta.setTextAnchor(TextAnchor.CENTER_LEFT); plot.getRenderer().addAnnotation(ta); } } /** * This method overrides the XYChartGenerators zoomY method to include the 0 * value on the Q axis. */ @Override protected boolean zoomY(XYPlot plot, ValueAxis axis, Range range, Range x) { if (plot.getRangeAxisIndex(axis) == 1) { // we want the Q axis to start at 0 if no zooming has been done range = new Range(0d, range.getUpperBound()); } return super.zoomY(plot, axis, range, x); } /** * This method inverts the x-axis based on the kilometer information of the * selected river. If the head of the river is at kilometer 0, the axis is * not inverted, otherwise it is. * * @param xaxis The domain axis. */ protected void invertXAxis(ValueAxis xaxis) { if (inverted) { logger.debug("Invert X-Axis."); xaxis.setInverted(true); } } public void doOut(Artifact artifact, Facet facet, Document attr) { String name = facet.getName(); logger.debug("LongitudinalSectionGenerator.doOut: " + name); if (name == null) { logger.error("No facet name for doOut(). No output generated!"); return; } FLYSArtifact flys = (FLYSArtifact) artifact; Facet f = flys.getNativeFacet(facet); if (f == null) { return; } if (name.equals(LONGITUDINAL_W)) { doWOut((WQKms) f.getData(artifact, context), attr); } else if (name.equals(LONGITUDINAL_Q)) { doQOut((WQKms) f.getData(artifact, context), attr); } else if (name.equals(LONGITUDINAL_ANNOTATION)) { doAnnotationsOut(f.getData(artifact, context), attr); } else { logger.warn("Unknown facet name: " + name); return; } } /** * Register annotations available for the diagram. * * @param o list of annotations (data of facet). * @param theme yet ignored. */ protected void doAnnotationsOut(Object o, Document theme) { logger.debug("LongitudinalSectionGenerator.doAnnotationsOut"); this.annotations = (List<Annotation>) o; // Add (empty) pseudo series to have legend entry for annotations. if (pseudoAnnotationData == null) { pseudoAnnotationData = new XYSeriesCollection(); } // Localized legend. Object[] args = new Object[] {getRiverName()}; String label = msg(I18N_ANNOTATIONS_LABEL, "", args); pseudoAnnotationData.addSeries(new StyledXYSeries(label, theme)); } /** * Process the output for W facets in a longitudinal section curve. * * @param wqkms An array of WQKms values. * @param theme The theme that contains styling information. */ protected void doWOut(WQKms wqkms, Document theme) { logger.debug("LongitudinalSectionGenerator.doWOut"); XYSeries series = new StyledXYSeries(getSeriesName(wqkms, "W"), theme); int size = wqkms.size(); if (logger.isDebugEnabled()) { if (wqkms.size() > 0) { logger.debug("Generate series: " + series.getKey()); logger.debug("Start km: " + wqkms.getKm(0)); logger.debug("End km: " + wqkms.getKm(size-1)); logger.debug("Values : " + size); } } for (int i = 0; i < size; i++) { series.add(wqkms.getKm(i), wqkms.getW(i)); } addFirstAxisSeries(series); if (wqkms.guessWaterIncreasing()) { setInverted(true); } } /** * Process the output for Q facets in a longitudinal section curve. * * @param wqkms An array of WQKms values. * @param theme The theme that contains styling information. */ protected void doQOut(WQKms wqkms, Document theme) { logger.debug("LongitudinalSectionGenerator.doQOut"); XYSeries series = new StyledXYSeries(getSeriesName(wqkms, "Q"), theme); int size = wqkms.size(); if (logger.isDebugEnabled()) { if (wqkms.size() > 0) { logger.debug("Generate series: " + series.getKey()); logger.debug("Start km: " + wqkms.getKm(0)); logger.debug("End km: " + wqkms.getKm(size-1)); logger.debug("Values : " + size); } } for (int i = 0; i < size; i++) { series.add(wqkms.getKm(i), wqkms.getQ(i)); } addSecondAxisSeries(series); if (wqkms.guessWaterIncreasing()) { setInverted(true); } } /** * Add datasets to plot. * @param plot plot to add datasets to. */ @Override protected void addDatasets(XYPlot plot) { super.addDatasets(plot); if (pseudoAnnotationData != null) { plot.setDataset(2, pseudoAnnotationData); } } /** * Get name of series (displayed in legend). * @return name of the series. */ protected String getSeriesName(WQKms wqkms, String mode) { String name = wqkms.getName(); String prefix = name != null && name.indexOf(mode) >= 0 ? null : mode; return prefix != null && prefix.length() > 0 ? prefix + "(" + name +")" : name; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :