dive4elements/river: flys-artifacts/src/main/java/de/intevation/flys/jfree/JFreeUtil.java annotate

annotate flys-artifacts/src/main/java/de/intevation/flys/jfree/JFreeUtil.java @ 5645:696d710470f5

flys/issue1077: Show loads as step line, therefore transform data in SedimentLoadFacet to stretch as in the measurement stations bounds. Deal with this new kind of data in the Generator.

author	Felix Wolfsteller <felix.wolfsteller@intevation.de>
date	Wed, 10 Apr 2013 09:35:07 +0200
parents	080411ac948f
children

rev	line source
3018 fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	1 package de.intevation.flys.jfree;
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	2
3765 d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	3 import java.awt.Shape;
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	4 import java.awt.geom.Rectangle2D;
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	5 import java.util.Iterator;
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	6 import java.util.Random;
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	7
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	8 import org.apache.log4j.Logger;
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	9 import org.jfree.chart.entity.ChartEntity;
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	10 import org.jfree.chart.entity.EntityCollection;
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	11 import org.w3c.dom.Document;
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	12
3109 63ef889eea2b SQ: Directly sample our Function objects instead of Function2D from JFreeChart. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3105 diff changeset	13 import de.intevation.flys.artifacts.math.Function;
63ef889eea2b SQ: Directly sample our Function objects instead of Function2D from JFreeChart. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3105 diff changeset	14
3018 fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	15 public class JFreeUtil {
3772 5a8f8fd5310c The usual wipe after for ill configured Eclipses. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3765 diff changeset	16
3765 d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	17 private static final Logger logger = Logger.getLogger(JFreeUtil.class);
3076 5642a83420f2 FLYS artifacts: Removed trailing whitespace. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3023 diff changeset	18
3018 fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	19 /** Do not instantiate. */
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	20 private JFreeUtil() {
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	21 }
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	22
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	23
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	24 /**
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	25 * True if \param hotspot collides with a Entity in \param entities.
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	26 * @param hotspot Shape to compare against other shapes (bounds only).
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	27 * @param entities entities against which to compare shape.
3023 e19ff9086035 Avoid collisions between line labels. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: 3018 diff changeset	28 * @param exclusiveEntityClass If not null, consider only entities of
e19ff9086035 Avoid collisions between line labels. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: 3018 diff changeset	29 * given class.
e19ff9086035 Avoid collisions between line labels. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: 3018 diff changeset	30 * @return true if a collision (non-zero intersection) exists between
3018 fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	31 * shapes.
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	32 */
3023 e19ff9086035 Avoid collisions between line labels. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: 3018 diff changeset	33 public static boolean collides(Shape hotspot, EntityCollection entities,
e19ff9086035 Avoid collisions between line labels. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: 3018 diff changeset	34 Class exclusiveEntityClass) {
3018 fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	35 if (entities == null) return false;
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	36
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	37 Rectangle2D hotspotBox = hotspot.getBounds2D();
3076 5642a83420f2 FLYS artifacts: Removed trailing whitespace. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3023 diff changeset	38
3018 fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	39 for (Iterator i = entities.iterator(); i.hasNext(); ) {
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	40 Object next = i.next();
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	41 ChartEntity entity = (ChartEntity) next;
3023 e19ff9086035 Avoid collisions between line labels. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: 3018 diff changeset	42 if (exclusiveEntityClass == null
e19ff9086035 Avoid collisions between line labels. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: 3018 diff changeset	43 \|\| exclusiveEntityClass.isInstance(entity))
e19ff9086035 Avoid collisions between line labels. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: 3018 diff changeset	44 {
e19ff9086035 Avoid collisions between line labels. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: 3018 diff changeset	45 if (entity.getArea().intersects(hotspotBox)) {
e19ff9086035 Avoid collisions between line labels. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: 3018 diff changeset	46 // Found collision, early stop.
e19ff9086035 Avoid collisions between line labels. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: 3018 diff changeset	47 return true;
e19ff9086035 Avoid collisions between line labels. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: 3018 diff changeset	48 }
3018 fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	49 }
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	50 }
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	51
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	52 return false;
fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	53 }
3772 5a8f8fd5310c The usual wipe after for ill configured Eclipses. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3765 diff changeset	54
5a8f8fd5310c The usual wipe after for ill configured Eclipses. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3765 diff changeset	55
3765 d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	56 /**
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	57 * This function samples a randomized line that contains of x and y values
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	58 * between <i>startX</i>, <i>endX</i>, <i>startY</i> and <i>endY</i>. The
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	59 * number of points in the line is specified by <i>num</i>.
3772 5a8f8fd5310c The usual wipe after for ill configured Eclipses. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3765 diff changeset	60 *
3765 d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	61 * @param num The number of points in the line.
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	62 * @param startX The min value of the x values.
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	63 * @param endX The max value of the x values.
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	64 * @param startY The min value of the y values.
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	65 * @param endY The max value of the y values.
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	66 * @return an array with [allX-values, allY-values].
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	67 * @throws IllegalArgumentException
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	68 */
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	69 public static double[][] randomizeLine(
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	70 int num,
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	71 double startX,
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	72 double endX,
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	73 double startY,
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	74 double endY
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	75 ) throws IllegalArgumentException
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	76 {
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	77 if (num <= 0) {
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	78 throw new IllegalArgumentException("Parameter 'num' has to be > 0");
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	79 }
3772 5a8f8fd5310c The usual wipe after for ill configured Eclipses. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3765 diff changeset	80
3765 d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	81 Random random = new Random();
3772 5a8f8fd5310c The usual wipe after for ill configured Eclipses. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3765 diff changeset	82
3765 d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	83 double[] x = new double[num];
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	84 double[] y = new double[num];
3772 5a8f8fd5310c The usual wipe after for ill configured Eclipses. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3765 diff changeset	85
3765 d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	86 for (int i = 0; i < num; i++) {
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	87 double xFac = random.nextDouble();
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	88 double yFac = random.nextDouble();
3772 5a8f8fd5310c The usual wipe after for ill configured Eclipses. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3765 diff changeset	89
3765 d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	90 x[i] = startX + xFac * (endX - startX);
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	91 y[i] = startY + yFac * (endY - startY);
3772 5a8f8fd5310c The usual wipe after for ill configured Eclipses. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3765 diff changeset	92
3765 d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	93 logger.debug("Created new point: " + x[i] + "\|" + y[i]);
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	94 }
3772 5a8f8fd5310c The usual wipe after for ill configured Eclipses. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3765 diff changeset	95
3765 d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	96 return new double[][] { x, y };
d8f2ab5b61c3 Added JFreeUtil.randomizeLine() to generate randomized lines. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3109 diff changeset	97 }
3105 9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	98
9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	99
9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	100 public static StyledXYSeries sampleFunction2D(
3109 63ef889eea2b SQ: Directly sample our Function objects instead of Function2D from JFreeChart. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3105 diff changeset	101 Function func,
63ef889eea2b SQ: Directly sample our Function objects instead of Function2D from JFreeChart. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3105 diff changeset	102 Document theme,
63ef889eea2b SQ: Directly sample our Function objects instead of Function2D from JFreeChart. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3105 diff changeset	103 String seriesKey,
63ef889eea2b SQ: Directly sample our Function objects instead of Function2D from JFreeChart. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3105 diff changeset	104 int samples,
63ef889eea2b SQ: Directly sample our Function objects instead of Function2D from JFreeChart. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3105 diff changeset	105 double start,
63ef889eea2b SQ: Directly sample our Function objects instead of Function2D from JFreeChart. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3105 diff changeset	106 double end
3105 9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	107 ) {
9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	108 StyledXYSeries series = new StyledXYSeries(seriesKey, theme);
9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	109
9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	110 double step = (end - start) / (samples - 1);
9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	111
9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	112 for (int i = 0; i < samples; i++) {
9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	113 double x = start + (step * i);
3109 63ef889eea2b SQ: Directly sample our Function objects instead of Function2D from JFreeChart. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3105 diff changeset	114 series.add(x, func.value(x));
3105 9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	115 }
9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	116
9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	117 return series;
9592b7d76633 Generate fake data for SQ curves; Implemented the Facet and Generator stuff. Ingo Weinzierl <ingo.weinzierl@intevation.de> parents: 3083 diff changeset	118 }
4564 080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	119
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	120 public static StyledXYSeries sampleFunction2DPositive(
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	121 Function func,
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	122 Document theme,
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	123 String seriesKey,
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	124 int samples,
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	125 double start,
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	126 double end
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	127 ) {
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	128 StyledXYSeries series = new StyledXYSeries(seriesKey, theme);
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	129
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	130 double step = (end - start) / (samples - 1);
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	131
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	132 for (int i = 0; i < samples; i++) {
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	133 double x = start + (step * i);
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	134 double v = func.value(x);
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	135 if (x > 0d && v > 0d) {
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	136 series.add(x, v);
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	137 }
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	138 }
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	139
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	140 return series;
080411ac948f More solid S/Q function sampling Sascha L. Teichmann <teichmann@intevation.de> parents: 3772 diff changeset	141 }
3018 fb07f936b5ad New helper. Felix Wolfsteller <felix.wolfsteller@intevation.de> parents: diff changeset	142 }
3083 4bd3d8bbb60c Added missing vim lines. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 3076 diff changeset	143 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/jfree/JFreeUtil.java @ 5645:696d710470f5