Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/exports/LongitudinalSectionGenerator2.java @ 8725:68827654ea7a

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(issue1754) Fix check for empty data bounds
author Andre Heinecke <andre.heinecke@intevation.de>
date Wed, 29 Apr 2015 14:13:57 +0200
parents 686d8876edf9
children cb33de3434a8
rev   line source
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.exports;
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10
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11 import org.dive4elements.river.artifacts.D4EArtifact;
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12 import org.dive4elements.artifactdatabase.state.ArtifactAndFacet;
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13 import org.dive4elements.river.artifacts.access.RangeAccess;
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14 import org.dive4elements.river.jfree.Bounds;
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15 import org.dive4elements.river.jfree.DoubleBounds;
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16 import org.dive4elements.river.themes.ThemeDocument;
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17 import org.dive4elements.river.artifacts.model.FacetTypes;
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18
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19 import org.jfree.data.Range;
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20
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21 import java.util.List;
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22 import java.util.ArrayList;
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23
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24 import org.apache.log4j.Logger;
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25
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26 public class LongitudinalSectionGenerator2 extends DiagramGenerator
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27 {
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28 private static Logger log = Logger.getLogger(LongitudinalSectionGenerator2.class);
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29
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30 /** Wrapper around the doOut info for postprocessing. */
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31 protected static class SuperBundle
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32 {
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33 public ArtifactAndFacet bundle;
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34 public ThemeDocument theme;
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35 boolean visible;
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36 public SuperBundle(ArtifactAndFacet bundle, ThemeDocument theme, boolean visible) {
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37 this.bundle = bundle;
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38 this.theme = theme;
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39 this.visible = visible;
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40 }
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41 };
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42
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43 protected List<SuperBundle> postOutAF;
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44
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45 public static final String I18N_CHART_SHORT_SUBTITLE =
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46 "chart.longitudinal.section.shortsubtitle";
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47
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48 public static final String I18N_CHART_LOCATION_SUBTITLE =
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49 "chart.longitudinal.section.locsubtitle";
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50
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51 @Override
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52 public String getDefaultChartSubtitle() {
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53 double[] dist = getRange();
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54 String parts = "";
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55 if (subTitleParts != null && !subTitleParts.isEmpty()) {
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56 for (String p : subTitleParts) {
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57 parts += ", " + p;
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58 }
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59 }
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60 if (dist == null || dist.length != 2 ||
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61 Double.isNaN(dist[0]) || Double.isNaN(dist[1])) {
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62 Object [] args = new Object[] {getRiverName()};
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63 return msg(I18N_CHART_SHORT_SUBTITLE, "", args) + parts;
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64 }
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65
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66 if (Math.abs(dist[0] - dist[1]) < 1E-5) {
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67 Object [] args = new Object[] {getRiverName(), dist[1]};
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68 return msg(I18N_CHART_LOCATION_SUBTITLE, "", args) + parts;
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69 }
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70
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71 return super.getDefaultChartSubtitle();
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72 }
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73
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74 protected void calculateRadius() {
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75 // Fixed range in settings is preferred
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76 Range candidate = getRangeForAxisFromSettings("X");
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77 Bounds dataBounds = getXBounds(0);
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78 if (candidate == null) {
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79 candidate = getDomainAxisRange(); // Diagram is zoomed
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80 if (candidate != null && dataBounds == null) {
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81 log.debug("Can't calculate the zoom without any X bounds.");
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82 candidate = null;
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83 } else if (candidate != null) {
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84 // domainAxisRange is relative so we have to take
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85 // this into account.
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86 Bounds bounds =
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87 calculateZoom(dataBounds, candidate);
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88 candidate = new Range(bounds.getLower().doubleValue(),
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89 bounds.getUpper().doubleValue());
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90 log.debug("Using X Range from zoom.");
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91 }
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92 } else {
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93 log.debug("Using X Range from settings.");
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94 }
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95
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96 if (candidate == null) {
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97 if (dataBounds == null) {
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98 // Diagram is empty.
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99 candidate = new Range(0d, 0d);
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100 log.debug("Empty diagram using fake Range");
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101 } else {
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102 // Diagram is not zoomed
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103 candidate = new Range(dataBounds.getLower().doubleValue(),
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104 dataBounds.getUpper().doubleValue());
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105 log.debug("Using Full X Range.");
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106 }
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107 }
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108 log.debug("startkm for Radius is: " + candidate.getLowerBound() +
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109 " endkm: " + candidate.getUpperBound());
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110 context.putContextValue("startkm", candidate.getLowerBound());
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111 context.putContextValue("endkm", candidate.getUpperBound());
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112 context.putContextValue("bounds_defined", true);
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113 }
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114
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115 @Override
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116 protected void postProcess() {
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117 if (postOutAF == null) {
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118 log.debug("PostProcess without bundles to process");
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119 return;
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120 }
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121
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122 // fake startkm and endkm for the dry run
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123 context.putContextValue("startkm", 0d);
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124 context.putContextValue("endkm", 42d);
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125 for (SuperBundle superbundle: postOutAF) {
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126 // Dry run with fake start /end
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127 // to get the filtered facets also included
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128 // in the x axis range.
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129 super.doOut(superbundle.bundle, superbundle.theme, false);
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130 }
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131
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132 calculateRadius(); // This calculates the real start and end km's
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133 for (SuperBundle superbundle: postOutAF) {
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134 super.doOut(superbundle.bundle, superbundle.theme, superbundle.visible);
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135 }
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136 }
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137
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138 /* We override doOut here to save the startkm and endkm in the
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139 * context. Some facets will deliver different data because of
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140 * that setting. It is mainly used in MINFO where it causes
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141 * adaptive smoothing on the data if you are zoomed out do
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142 * reduce the static in the curve. */
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143 @Override
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144 public void doOut(
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145 ArtifactAndFacet bundle,
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146 ThemeDocument theme,
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147 boolean visible
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148 ) {
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149 String facetName = bundle.getFacetName();
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150 if (FacetTypes.IS.FILTERED(facetName)) {
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151 // We can only process the filtered (smoothed) facets
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152 // after we know the diagram's extend to correctly calculate
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153 // the radius of the filter / smoothing operation. So
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154 // we postprocess them.
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155
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156 SuperBundle superbundle = new SuperBundle(bundle, theme, visible);
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157 if (postOutAF == null) {
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158 postOutAF = new ArrayList<SuperBundle>();
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159 }
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160 postOutAF.add(superbundle);
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161 return;
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162 }
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163 super.doOut(bundle, theme, visible);
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164 }
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165 }
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166 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org