Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/exports/TimeseriesChartGenerator.java @ 3278:c27c4e06dd87
Re-add HYK rendering code to CrossSectionGenerator
flys-artifacts/trunk@4924 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Christian Lins <christian.lins@intevation.de> |
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date | Wed, 11 Jul 2012 09:24:07 +0000 |
parents | 1dca41dba135 |
children | 66f539df4e8b |
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package de.intevation.flys.exports; import de.intevation.artifactdatabase.state.ArtifactAndFacet; import de.intevation.flys.jfree.Bounds; import de.intevation.flys.jfree.CollisionFreeXYTextAnnotation; import de.intevation.flys.jfree.DoubleBounds; import de.intevation.flys.jfree.FLYSAnnotation; import de.intevation.flys.jfree.StyledTimeSeries; import de.intevation.flys.jfree.TimeBounds; import java.awt.Color; import java.awt.Font; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.log4j.Logger; import org.jfree.chart.ChartFactory; import org.jfree.chart.JFreeChart; import org.jfree.chart.annotations.XYTextAnnotation; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.plot.Marker; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import org.jfree.data.Range; import org.jfree.data.general.Series; import org.jfree.data.time.Day; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.data.xy.XYDataset; import org.jfree.ui.Layer; import org.json.JSONArray; import org.json.JSONException; import org.w3c.dom.Document; /** * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public abstract class TimeseriesChartGenerator extends ChartGenerator { /** * Inner class TimeseriesAxisDataset stores TimeSeriesCollection. */ public class TimeseriesAxisDataset implements AxisDataset { protected int axisSymbol; protected List<TimeSeriesCollection> datasets; protected Range range; protected int plotAxisIndex; public TimeseriesAxisDataset(int axisSymbol) { this.axisSymbol = axisSymbol; this.datasets = new ArrayList<TimeSeriesCollection>(); } @Override public void addDataset(XYDataset dataset) { if (!(dataset instanceof TimeSeriesCollection)) { logger.warn("Skip non TimeSeriesCollection dataset."); return; } TimeSeriesCollection tsc = (TimeSeriesCollection) dataset; datasets.add(tsc); mergeRanges(tsc); } @Override public XYDataset[] getDatasets() { return datasets.toArray(new XYDataset[datasets.size()]); } @Override public boolean isEmpty() { return datasets.isEmpty(); } @Override public void setRange(Range range) { this.range = range; } @Override public Range getRange() { return range; } @Override public void setPlotAxisIndex(int plotAxisIndex) { this.plotAxisIndex = plotAxisIndex; } @Override public int getPlotAxisIndex() { return plotAxisIndex; } @Override public boolean isArea(XYDataset dataset) { logger.warn("This AxisDataset doesn't support Areas yet!"); return false; } protected void mergeRanges(TimeSeriesCollection dataset) { logger.debug("Range before merging: " + range); Range subRange = null; // Determine min/max of range axis. for (int i = 0; i < dataset.getSeriesCount(); i++) { double min = 0; double max = 0; TimeSeries series = dataset.getSeries(i); for (int j = 0; j < series.getItemCount(); j++) { double tmp = series.getValue(j).doubleValue(); min = tmp < min ? tmp : min; max = tmp > max ? tmp : max; } if (subRange != null) { subRange = new Range( min < subRange.getLowerBound() ? min : subRange.getLowerBound(), max > subRange.getUpperBound() ? max : subRange.getUpperBound()); } else { subRange = new Range(min, max); } } // Avoid merging NaNs, as they take min/max place forever. if (subRange == null || Double.isNaN(subRange.getLowerBound()) || Double.isNaN(subRange.getUpperBound())) { return; } if (range == null) { range = subRange; return; } range = Range.combine(range, subRange); } } // end of TimeseriesAxisDataset class protected List<Marker> domainMarker; protected List<Marker> valueMarker; protected Map<String, String> attributes; protected boolean domainZeroLineVisible; private static final Logger logger = Logger.getLogger(TimeseriesChartGenerator.class); public static final int AXIS_SPACE = 5; protected Map<Integer, Bounds> xBounds; protected Map<Integer, Bounds> yBounds; /** * The default constructor that initializes internal datastructures. */ public TimeseriesChartGenerator() { super(); xBounds = new HashMap<Integer, Bounds>(); yBounds = new HashMap<Integer, Bounds>(); domainMarker = new ArrayList<Marker>(); valueMarker = new ArrayList<Marker>(); attributes = new HashMap<String, String>(); } @Override public JFreeChart generateChart() { logger.info("Generate Timeseries Chart."); JFreeChart chart = ChartFactory.createTimeSeriesChart( getChartTitle(), getXAxisLabel(), getYAxisLabel(0), null, isLegendVisible(), false, false); XYPlot plot = (XYPlot) chart.getPlot(); chart.setBackgroundPaint(Color.WHITE); plot.setBackgroundPaint(Color.WHITE); addSubtitles(chart); adjustPlot(plot); addDatasets(plot); adjustAxes(plot); addDomainAxisMarker(plot); addValueAxisMarker(plot); adaptZoom(plot); applySeriesAttributes(plot); addAnnotationsToRenderer(plot); aggregateLegendEntries(plot); return chart; } @Override protected Series getSeriesOf(XYDataset dataset, int idx) { return ((TimeSeriesCollection) dataset).getSeries(idx); } /** * This method creates new instances of TimeseriesAxisDataset. * * @param idx The symbol for the new TimeseriesAxisDataset. */ @Override protected AxisDataset createAxisDataset(int idx) { logger.debug("Create a new AxisDataset for index: " + idx); return new TimeseriesAxisDataset(idx); } @Override protected void combineXBounds(Bounds bounds, int index) { if (bounds != null) { Bounds old = getXBounds(index); if (old != null) { bounds = bounds.combine(old); } setXBounds(index, bounds); } } @Override protected void combineYBounds(Bounds bounds, int index) { if (bounds != null) { Bounds old = getYBounds(index); if (old != null) { bounds = bounds.combine(old); } setYBounds(index, bounds); } } // TODO REPLACE THIS METHOD WITH getBoundsForAxis(index) @Override public Range[] getRangesForAxis(int index) { // TODO Bounds[] bounds = getBoundsForAxis(index); return new Range[] { new Range( bounds[0].getLower().doubleValue(), bounds[0].getUpper().doubleValue()), new Range( bounds[1].getLower().doubleValue(), bounds[1].getUpper().doubleValue()) }; } @Override public Bounds getXBounds(int axis) { return xBounds.get(axis); } @Override protected void setXBounds(int axis, Bounds bounds) { xBounds.put(axis, bounds); } @Override public Bounds getYBounds(int axis) { return yBounds.get(axis); } @Override protected void setYBounds(int axis, Bounds bounds) { if (bounds != null) { yBounds.put(axis, bounds); } } public Bounds[] getBoundsForAxis(int index) { logger.debug("Return x and y bounds for axis at: " + index); Bounds rx = getXBounds(Integer.valueOf(index)); Bounds ry = getYBounds(Integer.valueOf(index)); if (rx == null) { logger.warn("Range for x axis not set." + " Using default values: 0 - 1."); rx = new TimeBounds(0l, 1l); } if (ry == null) { logger.warn("Range for y axis not set." + " Using default values: 0 - 1."); ry = new DoubleBounds(0l, 1l); } logger.debug("X Bounds at index " + index + " is: " + rx); logger.debug("Y Bounds at index " + index + " is: " + ry); return new Bounds[] {rx, ry}; } public Bounds getDomainAxisRange() { String[] ranges = getDomainAxisRangeFromRequest(); if (ranges == null || ranges.length < 2) { logger.debug("No zoom range for domain axis specified."); return null; } if (ranges[0] == null || ranges[1] == null) { logger.warn("Invalid ranges for domain axis specified!"); return null; } try { double lower = Double.parseDouble(ranges[0]); double upper = Double.parseDouble(ranges[1]); return new DoubleBounds(lower, upper); } catch (NumberFormatException nfe) { logger.warn("Invalid ranges for domain axis specified: " + nfe); } return null; } public Bounds getValueAxisRange() { String[] ranges = getValueAxisRangeFromRequest(); if (ranges == null || ranges.length < 2) { logger.debug("No zoom range for domain axis specified."); return null; } if (ranges[0] == null || ranges[1] == null) { logger.warn("Invalid ranges for domain axis specified!"); return null; } try { double lower = Double.parseDouble(ranges[0]); double upper = Double.parseDouble(ranges[1]); return new DoubleBounds(lower, upper); } catch (NumberFormatException nfe) { logger.warn("Invalid ranges for domain axis specified: " + nfe); } return null; } protected void adaptZoom(XYPlot plot) { logger.debug("Adapt zoom of Timeseries chart."); zoomX(plot, plot.getDomainAxis(), getXBounds(0), getDomainAxisRange()); Bounds valueAxisBounds = getValueAxisRange(); for (int j = 0, n = plot.getRangeAxisCount(); j < n; j++) { zoomY( plot, plot.getRangeAxis(j), getYBounds(j), valueAxisBounds); } } protected void zoomX( XYPlot plot, ValueAxis axis, Bounds total, Bounds user ) { if (logger.isDebugEnabled()) { logger.debug("== Zoom X axis =="); logger.debug(" Total axis range : " + total); logger.debug(" User defined range: " + user); } if (user != null) { long min = total.getLower().longValue(); long max = total.getUpper().longValue(); long diff = max > min ? max - min : min - max; long newMin = Math.round(min + user.getLower().doubleValue() * diff); long newMax = Math.round(min + user.getUpper().doubleValue() * diff); TimeBounds newBounds = new TimeBounds(newMin, newMax); logger.debug(" Zoom axis to: " + newBounds); newBounds.applyBounds(axis, AXIS_SPACE); } else { logger.debug("No user specified zoom values found!"); if (total != null && axis != null) { total.applyBounds(axis, AXIS_SPACE); } } } protected void zoomY( XYPlot plot, ValueAxis axis, Bounds total, Bounds user ) { if (logger.isDebugEnabled()) { logger.debug("== Zoom Y axis =="); logger.debug(" Total axis range : " + total); logger.debug(" User defined range: " + user); } if (user != null) { double min = total.getLower().doubleValue(); double max = total.getUpper().doubleValue(); double diff = max > min ? max - min : min - max; double newMin = min + user.getLower().doubleValue() * diff; double newMax = min + user.getUpper().doubleValue() * diff; DoubleBounds newBounds = new DoubleBounds(newMin, newMax); logger.debug(" Zoom axis to: " + newBounds); newBounds.applyBounds(axis, AXIS_SPACE); } else { logger.debug("No user specified zoom values found!"); if (total != null && axis != null) { total.applyBounds(axis, AXIS_SPACE); } } } /** * Adjusts the axes of a plot. This method sets the <i>labelFont</i> of the * X axis. * * @param plot The XYPlot of the chart. */ protected void adjustAxes(XYPlot plot) { ValueAxis xaxis = plot.getDomainAxis(); ChartSettings chartSettings = getChartSettings(); if (chartSettings == null) { return; } Font labelFont = new Font( DEFAULT_FONT_NAME, Font.BOLD, getXAxisLabelFontSize()); xaxis.setLabelFont(labelFont); xaxis.setTickLabelFont(labelFont); } /** * Do Points out. */ protected void doPoints( Object o, ArtifactAndFacet aandf, Document theme, boolean visible, int axisIndex ) { String seriesName = aandf.getFacetDescription(); TimeSeries series = new StyledTimeSeries(seriesName, theme); // Add text annotations for single points. List<XYTextAnnotation> xy = new ArrayList<XYTextAnnotation>(); HashMap<Day, String> names = new HashMap<Day, String>(); try { JSONArray points = new JSONArray((String) o); for (int i = 0, P = points.length(); i < P; i++) { JSONArray array = points.getJSONArray(i); double x = array.getDouble(0); double y = array.getDouble(1); String name = array.getString(2); boolean act = array.getBoolean(3); if (!act) { continue; } long l = (new Double(x)).longValue(); Date date = new Date(l); Day day = new Day(date); series.add(day, y, false); names.put(day, name); } } catch(JSONException e){ logger.error("Could not decode json."); } TimeSeriesCollection tsc = new TimeSeriesCollection(); tsc.addSeries(series); // Add Annotations. for (int i = 0, S = series.getItemCount(); i < S; i++) { double x = tsc.getXValue(0, i); double y = tsc.getYValue(0, i); xy.add(new CollisionFreeXYTextAnnotation( names.get(series.getTimePeriod(i)), x, y)); } FLYSAnnotation annotations = new FLYSAnnotation(null, null, null, theme); annotations.setTextAnnotations(xy); // Do not generate second legend entry. (null was passed for the aand before). doAnnotations(annotations, null, theme, visible); addAxisDataset(tsc, axisIndex, visible); } public void addDomainAxisMarker(XYPlot plot) { logger.debug("domainmarkers: " + domainMarker.size()); for (Marker marker: domainMarker) { logger.debug("adding domain marker"); plot.addDomainMarker(marker, Layer.BACKGROUND); } domainMarker.clear(); } public void addValueAxisMarker(XYPlot plot) { for (Marker marker: valueMarker) { logger.debug("adding value marker.."); plot.addRangeMarker(marker, Layer.BACKGROUND); } valueMarker.clear(); } public void addAttribute(String seriesKey, String name) { attributes.put(seriesKey, name); } protected void applySeriesAttributes(XYPlot plot) { int count = plot.getDatasetCount(); for (int i = 0; i < count; i++) { XYDataset data = plot.getDataset(i); if (data == null) { continue; } int seriesCount = data.getSeriesCount(); for (int j = 0; j < seriesCount; j++) { StyledTimeSeries series = (StyledTimeSeries)getSeriesOf(data, j); String key = series.getKey().toString(); if (attributes.containsKey(key)) { if (attributes.get(key).equals("interpolate")) { XYLineAndShapeRenderer renderer = series.getStyle().getRenderer(); renderer.setSeriesPaint( j, renderer.getSeriesFillPaint(j)); renderer.setSeriesShapesFilled(j, false); } } if (attributes.containsKey(key)) { if(attributes.get(key).equals("outline")) { XYLineAndShapeRenderer renderer = series.getStyle().getRenderer(); renderer.setSeriesPaint( j, renderer.getSeriesFillPaint(j)); renderer.setDrawOutlines(true); } } } } } /** Two Ranges that span a rectangular area. */ public static class Area { protected Range xRange; protected Range yRange; public Area(Range rangeX, Range rangeY) { this.xRange = rangeX; this.yRange = rangeY; } public Area(ValueAxis axisX, ValueAxis axisY) { this.xRange = axisX.getRange(); this.yRange = axisY.getRange(); } public double ofLeft(double percent) { return xRange.getLowerBound() + xRange.getLength() * percent; } public double ofRight(double percent) { return xRange.getUpperBound() - xRange.getLength() * percent; } public double ofGround(double percent) { return yRange.getLowerBound() + yRange.getLength() * percent; } public double atTop() { return yRange.getUpperBound(); } public double atGround() { return yRange.getLowerBound(); } public double atRight() { return xRange.getUpperBound(); } public double atLeft() { return xRange.getLowerBound(); } public double above(double percent, double base) { return base + yRange.getLength() * percent; } } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :