Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/exports/StyledSeriesBuilder.java @ 8324:d6c03537970e
Removed obsolete imports.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Thu, 25 Sep 2014 11:00:31 +0200 |
parents | e4606eae8ea5 |
children | 7d0c4e508835 |
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde * Software engineering by Intevation GmbH * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.exports; import org.apache.log4j.Logger; import org.jfree.data.xy.XYSeries; import org.dive4elements.river.artifacts.model.WKms; import org.dive4elements.river.artifacts.model.WQKms; import org.dive4elements.river.artifacts.model.WWQQ; /** * Helper to create and modify StyledXYSeries. */ public class StyledSeriesBuilder { /** * JFreeChart and the area calculation will fail if we use Double.INFINITY * or Double.MAX_VALUE (probably because these are really used in * calculations). We define and use a more handy value instead. */ final static double BIG_DOUBLE_VALUE = 1234567d; private static final Logger log = Logger.getLogger (StyledSeriesBuilder.class); /** * Trivial, hidden constructor. */ private StyledSeriesBuilder() { } /** * Add points to series, create gaps if certain distance between * points is met and scale the Y value. * * @param series Series to add points to. * @param points Points to add to series, points[0] to 1st dim, points[1] * to 2nd dim. * @param skipNANs if true, skip NAN values in points parameter. Otherwise, * the NaNs lead to gaps in graph. * @param distance if two consecutive entries in points[0] are more * than distance apart, create a NaN value to skip in display. * Still, create a line segment. * @param factor Factor by which to scale the y value (points[1]). */ public static void addPointsFactorY(XYSeries series, double[][] points, boolean skipNANs, double distance, double factor ) { if (points == null || points.length <= 1) { return; } double [] xPoints = points[0]; double [] yPoints = points[1]; for (int i = 0; i < xPoints.length; i++) { if (skipNANs && (Double.isNaN(xPoints[i]) || Double.isNaN(yPoints[i]))) { log.warn ("Skipping NaN in StyledSeriesBuilder."); continue; } // Create gap if distance >= distance. if (i != 0 && Math.abs(xPoints[i-1] - xPoints[i]) >= distance) { // Create at least a small segment for last point. if (!Double.isNaN(yPoints[i-1])) { series.add(xPoints[i-1]+0.99d*(distance)/2.d, yPoints[i-1]*factor, false); } if (!Double.isNaN(yPoints[i-1]) && !Double.isNaN(yPoints[i])) { series.add((xPoints[i-1]+xPoints[i])/2.d, Double.NaN, false); } } series.add(xPoints[i], yPoints[i]*factor, false); } } /** * Add points to series, create gaps if certain distance between points is met. * * @param series Series to add points to. * @param points Points to add to series, points[0] to 1st dim, points[1] * to 2nd dim. * @param skipNANs if true, skip NAN values in points parameter. Otherwise, * the NaNs lead to gaps in graph. * @param distance if two consecutive entries in points[0] are more * than distance apart, create a NaN value to skip in display. * Still, create a line segment. */ public static void addPoints(XYSeries series, double[][] points, boolean skipNANs, double distance) { if (points == null || points.length <= 1) { return; } double [] xPoints = points[0]; double [] yPoints = points[1]; for (int i = 0; i < xPoints.length; i++) { if (skipNANs && (Double.isNaN(xPoints[i]) || Double.isNaN(yPoints[i]))) { log.warn ("Skipping NaN in StyledSeriesBuilder."); continue; } // Create gap if distance >= distance. if (i != 0 && Math.abs(xPoints[i-1] - xPoints[i]) >= distance) { // Create at least a small segment for last point. if (!Double.isNaN(yPoints[i-1])) { series.add(xPoints[i-1]+0.99d*(distance)/2.d, yPoints[i-1], false); } if (!Double.isNaN(yPoints[i-1]) && !Double.isNaN(yPoints[i])) { series.add((xPoints[i-1]+xPoints[i])/2.d, Double.NaN, false); } } series.add(xPoints[i], yPoints[i], false); } } /** * Add points to series. * * @param series Series to add points to. * @param points Points to add to series, points[0] to 1st dim, points[1] * to 2nd dim. * @param skipNANs if true, skip NAN values in points parameter. * @param transY translate y-values by this value (before scale). * @param factorY scale y-values by this value (after translation). */ public static void addPoints(XYSeries series, double[][] points, boolean skipNANs, double transY, double factorY) { if (transY == 0d && factorY == 1d) { addPoints(series, points, skipNANs); return; } if (points == null || points.length <= 1) { return; } double [] xPoints = points[0]; double [] yPoints = points[1]; for (int i = 0; i < xPoints.length; i++) { if (skipNANs && (Double.isNaN(xPoints[i]) || Double.isNaN(yPoints[i]))) { log.warn ("Skipping NaN in StyledSeriesBuilder."); continue; } series.add(xPoints[i], factorY * (transY+yPoints[i]), false); } } /** * Add points to series. * * @param series Series to add points to. * @param points Points to add to series, points[0] to 1st dim, points[1] * to 2nd dim. * @param skipNANs if true, skip NAN values in points parameter. */ public static void addPoints(XYSeries series, double[][] points, boolean skipNANs) { if (points == null || points.length <= 1) { return; } double [] xPoints = points[0]; double [] yPoints = points[1]; for (int i = 0; i < xPoints.length; i++) { if (skipNANs && (Double.isNaN(xPoints[i]) || Double.isNaN(yPoints[i]))) { log.warn ("Skipping NaN in StyledSeriesBuilder."); continue; } series.add(xPoints[i], yPoints[i], false); } } /** * Add points to series (km to 1st dim, w to 2nd dim). * * @param series Series to add points to. * @param wkms WKms to add to series. */ public static void addPoints(XYSeries series, WKms wkms) { if (wkms == null) { return; } int size = wkms.size(); for (int i = 0; i < size; i++) { series.add(wkms.getKm(i), wkms.getW(i), false); } } /** * Add points to dataset with an offset (shift all points by given amount). * @param series series to add data to. * @param wkms WKms of which the Ws will be shifted. * @param off the offset. */ public static void addUpperBand(XYSeries series, WKms wkms, double off) { if (wkms == null) { return; } int size = wkms.size(); for (int i = 0; i < size; i++) { series.add(wkms.getKm(i), wkms.getW(i)+off, false); } } /** * Add points to dataset with an offset (shift all points 'down' by given * amount). * @param series series to add data to. * @param wkms WKms of which the Ws will be shifted. * @param off the offset. */ public static void addLowerBand(XYSeries series, WKms wkms, double off) { addUpperBand(series, wkms, -off); } /** * Add points to series (km to 1st dim, q to 2nd dim). * * @param series Series to add points to. * @param wqkms WQKms to add to series. */ public static void addPointsKmQ(XYSeries series, WQKms wqkms) { if (wqkms == null) { return; } int size = wqkms.size(); for (int i = 0; i < size; i++) { series.add(wqkms.getKm(i), wqkms.getQ(i), false); } } /** * Add points to series (km to 1st dim, q to 2nd dim), adding points * to achieve a step-like curve. * * @param series Series to add points to. * @param wqkms WQKms to add to series. */ public static void addStepPointsKmQ(XYSeries series, WQKms wqkms) { if (wqkms == null) { return; } int size = wqkms.size(); for (int i = 0; i < size; i++) { if (i==0) { series.add(wqkms.getKm(i), wqkms.getQ(i), false); } else { //Add two points. double halveX = (wqkms.getKm(i-1) + wqkms.getKm(i)) / 2d; series.add(halveX, wqkms.getQ(i-1), false); series.add(halveX, wqkms.getQ(i), false); } if (i == size-1) { series.add(wqkms.getKm(i), wqkms.getQ(i), false); } } } /** * Add points to series (q to 1st dim, w to 2nd dim). * * @param series Series to add points to. * @param wqkms WQKms to add to series. */ public static void addPointsQW(XYSeries series, WQKms wqkms) { if (wqkms == null) { return; } int size = wqkms.size(); for (int i = 0; i < size; i++) { series.add(wqkms.getQ(i), wqkms.getW(i), false); } } /** * Add points to series (q to 1st dim, w to 2nd dim), adding wTrans to the * W values and scaling it with wScale. * * @param series Series to add points to. * @param qws to add to series. * @param wAdd Value to add to each Q while adding to series. * @param wScale multiply with */ public static void addPointsQW(XYSeries series, double[][] qws, double wTrans, double wScale) { if (qws == null || qws.length == 0) { return; } double x[] = qws[0]; double y[] = qws[1]; for (int i = 0; i < x.length; i++) { series.add(x[i], wScale * (y[i] + wTrans), false); } } /** * Add points to series (q to 1st dim, w to 2nd dim), adding wTrans to the * W values and scaling it with wScale. * * @param series Series to add points to. * @param wqkms WQKms to add to series. * @param wAdd Value to add to each Q while adding to series. * @param wScale multiply with */ public static void addPointsQW(XYSeries series, WQKms wqkms, double wTrans, double wScale) { if (wqkms == null) { return; } int size = wqkms.size(); for (int i = 0; i < size; i++) { series.add(wqkms.getQ(i), wScale * (wqkms.getW(i) + wTrans), false); } } /** * Add points to series (q to 1st dim, w to 2nd dim). * * @param series Series to add points to. * @param qs the Qs to add, assumed same length than ws. * @param ws the Ws to add, assumed same length than qs. */ public static void addPointsQW(XYSeries series, double[] qs, double ws[]) { if (ws == null || qs == null) { return; } int size = qs.length; for (int i = 0; i < size; i++) { series.add(qs[i], ws[i], false); } } /** * Add points to series (q to 1st dim, w to 2nd dim), with * scaling and translation. * * @param series Series to add points to. * @param qs the Qs to add, assumed same length than ws. * @param ws the Ws to add, assumed same length than qs. */ public static void addPointsQW(XYSeries series, double[] qs, double ws[], double wTrans, double wScale) { if (ws == null || qs == null) { return; } int size = qs.length; for (int i = 0; i < size; i++) { series.add(qs[i], wScale * (ws[i]+wTrans), false); } } /** * Add points to series (q to 1st dim, w to 2nd dim). * * @param series Series to add points to. * @param wwqq WWQQ to add to series. */ public static void addPoints(XYSeries series, WWQQ wwqq) { if (wwqq == null) { return; } int size = wwqq.size(); for (int i = 0; i < size; i++) { series.add(wwqq.getW1(i), wwqq.getW2(i), false); } } /** * Create a Series such that an infinitely big area can be filled * between the newly created and the given series. */ public static XYSeries createGroundAtInfinity(XYSeries series) { XYSeries ground = new XYSeries(series.getKey() + /** TODO rand + */ "INF"); ground.add(series.getMinX(), -BIG_DOUBLE_VALUE); ground.add(series.getMaxX(), -BIG_DOUBLE_VALUE); return ground; } /** * Create a Series such that an infinitely big area can be filled * between the newly created and the given series. */ public static XYSeries createCeilingAtInfinity(XYSeries series) { XYSeries ground = new XYSeries(series.getKey() + /** TODO rand + */ "INF"); ground.add(series.getMinX(), BIG_DOUBLE_VALUE); ground.add(series.getMaxX(), BIG_DOUBLE_VALUE); return ground; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :