Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/exports/InfoGeneratorHelper.java @ 7082:3dc740c51f9b generator-refactoring

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Remove generator2 hacks
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 20 Sep 2013 17:58:30 +0200
parents 9b52c501c57e
children e4606eae8ea5
rev   line source
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4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
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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 java.awt.geom.AffineTransform;
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12 import java.awt.geom.NoninvertibleTransformException;
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13 import java.awt.geom.Rectangle2D;
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14
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15 import java.util.Date;
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16
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17 import org.w3c.dom.Document;
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18 import org.w3c.dom.Element;
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19
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20 import org.apache.log4j.Logger;
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21
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22 import org.jfree.chart.ChartRenderingInfo;
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23 import org.jfree.chart.JFreeChart;
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24 import org.jfree.chart.axis.DateAxis;
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25 import org.jfree.chart.axis.NumberAxis;
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26 import org.jfree.chart.axis.ValueAxis;
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27 import org.jfree.chart.plot.XYPlot;
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28 import org.jfree.data.Range;
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29 import org.jfree.data.xy.XYDataset;
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30
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31 import org.dive4elements.artifacts.common.ArtifactNamespaceContext;
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32 import org.dive4elements.artifacts.common.utils.XMLUtils;
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33 import org.dive4elements.artifacts.common.utils.XMLUtils.ElementCreator;
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34
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35 import org.dive4elements.river.jfree.Bounds;
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36
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37
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38 /**
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39 * This class helps generating chart info documents.
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40 *
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41 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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42 */
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43 public class InfoGeneratorHelper {
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44
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45 /** Private logging instance. */
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46 private static final Logger logger =
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47 Logger.getLogger(InfoGeneratorHelper.class);
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48
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49 protected ChartGenerator generator;
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50
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51 public InfoGeneratorHelper(ChartGenerator generator) {
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52 this.generator = generator;
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53 }
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54
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55 /**
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56 * Triggers the creation of the chart info document.
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57 *
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58 * @param chart The JFreeChart chart.
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59 * @param info An info object that has been created while chart creation.
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60 *
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61 * @return the info document.
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62 */
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63 public Document createInfoDocument(
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64 JFreeChart chart,
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65 ChartRenderingInfo info)
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66 {
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67 logger.debug("InfoGeneratorHelper.createInfoDocument");
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68
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69 Document doc = XMLUtils.newDocument();
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70
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71 ElementCreator cr = new ElementCreator(
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72 doc,
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73 ArtifactNamespaceContext.NAMESPACE_URI,
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74 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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75
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76 Element chartinfo = cr.create("chartinfo");
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77
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78 chartinfo.appendChild(createAxesElements(cr, chart));
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79 chartinfo.appendChild(createTransformationElements(cr, chart, info));
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80
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81 doc.appendChild(chartinfo);
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82
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83 return doc;
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84 }
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85
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86
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87 /**
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88 * This method create a axes element that contains all domain and range
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89 * axes of the given chart.
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90 *
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91 * @param cr The ElementCreator.
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92 * @param chart The chart that provides range information of its axes.
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93 *
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94 * @return an element with axes information.
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95 */
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96 protected Element createAxesElements(
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97 ElementCreator cr,
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98 JFreeChart chart)
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99 {
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100 logger.debug("InfoGeneratorHelper.createRangeElements");
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101
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102 Element axes = cr.create("axes");
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103
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104 XYPlot plot = (XYPlot) chart.getPlot();
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105
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106 int dAxisCount = plot.getDomainAxisCount();
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107 for (int i = 0; i < dAxisCount; i++) {
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108 ValueAxis axis = plot.getDomainAxis(i);
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109 XYDataset data = plot.getDataset(i);
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110
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111 if (axis != null) {
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112 Element e = createAxisElement(cr, axis, data, "domain", i);
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113 axes.appendChild(e);
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114 }
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115 }
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116
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117 int rAxisCount = plot.getRangeAxisCount();
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118 for (int i = 0; i < rAxisCount; i++) {
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119 ValueAxis axis = plot.getRangeAxis(i);
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120 XYDataset data = plot.getDataset(i);
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121
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122 if (axis == null || data == null) {
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123 logger.warn("Axis or dataset is empty at pos: " + i);
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124 continue;
659
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125 }
673
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126
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127 Element e = createAxisElement(cr, axis, data, "range", i);
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128 axes.appendChild(e);
659
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129 }
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130
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131 return axes;
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132 }
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133
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134
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 657
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135 /**
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136 * This method create a axis element for a given <i>axis</i> and
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parents: 657
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137 * <i>type</i>. Type can be one of 'domain' or 'range'.
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 657
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138 *
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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139 * @param cr The ElementCreator
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140 * @param axis The axis that provides range information.
673
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141 * @param dataset The dataset for min/max determination.
659
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142 * @param type The axis type ('domain' or 'range').
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143 * @param pos The position in the chart.
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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144 *
ab43f36f4af6 The ChartInfoGenerator appends axes range information to the document now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 657
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145 * @return An element that contains range information of a given axis.
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parents: 657
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146 */
673
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147 protected Element createAxisElement(
659
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148 ElementCreator cr,
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149 ValueAxis axis,
673
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150 XYDataset dataset,
659
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151 String type,
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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152 int pos)
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 657
diff changeset
153 {
1944
21a4d2c677a1 Changed doOut signature, side effect from blackboard feature (to come).
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parents: 1684
diff changeset
154 logger.debug("createAxisElement " + pos);
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155 logger.debug("Axis is from type: " + axis.getClass());
659
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156
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
157 Element e = cr.create(type);
1944
21a4d2c677a1 Changed doOut signature, side effect from blackboard feature (to come).
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parents: 1684
diff changeset
158 cr.addAttr(e, "pos", String.valueOf(pos), true);
2261
6aeb71517136 Registered an Info generator for historical discharge curves; made some adaptions in XYChartGenerator, ChartGenerator and TimeseriesChartGenerator.
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parents: 1944
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159
6aeb71517136 Registered an Info generator for historical discharge curves; made some adaptions in XYChartGenerator, ChartGenerator and TimeseriesChartGenerator.
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parents: 1944
diff changeset
160 if (axis instanceof DateAxis) {
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161 prepareDateAxisElement(
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162 e, cr, (DateAxis) axis, dataset, type, pos);
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parents: 1944
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163 }
6aeb71517136 Registered an Info generator for historical discharge curves; made some adaptions in XYChartGenerator, ChartGenerator and TimeseriesChartGenerator.
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parents: 1944
diff changeset
164 else {
2273
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165 prepareNumberAxisElement(
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166 e, cr, (NumberAxis) axis, dataset, type, pos);
2261
6aeb71517136 Registered an Info generator for historical discharge curves; made some adaptions in XYChartGenerator, ChartGenerator and TimeseriesChartGenerator.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1944
diff changeset
167 }
6aeb71517136 Registered an Info generator for historical discharge curves; made some adaptions in XYChartGenerator, ChartGenerator and TimeseriesChartGenerator.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1944
diff changeset
168
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169 return e;
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170 }
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parents: 2261
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171
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172
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173 protected Element prepareNumberAxisElement(
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174 Element e,
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175 ElementCreator cr,
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176 NumberAxis axis,
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177 XYDataset dataset,
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parents: 2261
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178 String type,
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parents: 2261
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179 int pos
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180 ) {
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181 Range range = axis.getRange();
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182
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183 cr.addAttr(e, "from", String.valueOf(range.getLowerBound()), true);
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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184 cr.addAttr(e, "to", String.valueOf(range.getUpperBound()), true);
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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185 cr.addAttr(e, "axistype", "number", true);
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186
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Andre Heinecke <aheinecke@intevation.de>
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187 Range[] rs = generator.getRangesForAxis(pos);
673
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188 Range r = null;
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189
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parents: 663
diff changeset
190 if (type.equals("range")) {
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parents: 663
diff changeset
191 r = rs[1];
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parents: 663
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192 }
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parents: 663
diff changeset
193 else {
b22f21b173a7 Changed the zoom process - the values in the chart request document are percentual values that apply to every axis.
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parents: 663
diff changeset
194 r = rs[0];
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parents: 663
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195 }
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parents: 663
diff changeset
196
b22f21b173a7 Changed the zoom process - the values in the chart request document are percentual values that apply to every axis.
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parents: 663
diff changeset
197 cr.addAttr(e, "min", String.valueOf(r.getLowerBound()), true);
b22f21b173a7 Changed the zoom process - the values in the chart request document are percentual values that apply to every axis.
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parents: 663
diff changeset
198 cr.addAttr(e, "max", String.valueOf(r.getUpperBound()), true);
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diff changeset
199
659
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diff changeset
200 return e;
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 657
diff changeset
201 }
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 657
diff changeset
202
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 657
diff changeset
203
2273
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diff changeset
204 protected Element prepareDateAxisElement(
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2261
diff changeset
205 Element e,
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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parents: 2261
diff changeset
206 ElementCreator cr,
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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parents: 2261
diff changeset
207 DateAxis axis,
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2261
diff changeset
208 XYDataset dataset,
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2261
diff changeset
209 String type,
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2261
diff changeset
210 int pos
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2261
diff changeset
211 ) {
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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parents: 2261
diff changeset
212 Date from = axis.getMinimumDate();
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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parents: 2261
diff changeset
213 Date to = axis.getMaximumDate();
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parents: 2261
diff changeset
214
2330
594885703687 Picked changes r4015:4026 from trunk.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2273
diff changeset
215 Bounds bounds = null;
594885703687 Picked changes r4015:4026 from trunk.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2273
diff changeset
216 if (type.equals("range")) {
7082
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Andre Heinecke <aheinecke@intevation.de>
parents: 7069
diff changeset
217 bounds = generator.getYBounds(pos);
2330
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parents: 2273
diff changeset
218 }
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2273
diff changeset
219 else {
7082
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Andre Heinecke <aheinecke@intevation.de>
parents: 7069
diff changeset
220 bounds = generator.getXBounds(pos);
2330
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parents: 2273
diff changeset
221 }
594885703687 Picked changes r4015:4026 from trunk.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2273
diff changeset
222
2273
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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parents: 2261
diff changeset
223 cr.addAttr(e, "axistype", "date", true);
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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parents: 2261
diff changeset
224 cr.addAttr(e, "from", String.valueOf(from.getTime()), true);
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2261
diff changeset
225 cr.addAttr(e, "to", String.valueOf(to.getTime()), true);
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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parents: 2261
diff changeset
226
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parents: 2273
diff changeset
227 cr.addAttr(e, "min", bounds.getLower().toString(), true);
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228 cr.addAttr(e, "max", bounds.getUpper().toString(), true);
2273
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229
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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diff changeset
230 return e;
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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parents: 2261
diff changeset
231 }
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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parents: 2261
diff changeset
232
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parents: 2261
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233
659
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 657
diff changeset
234 /**
647
bb484489d3df Introduced a new output generators for creating chart info documents.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
235 * This method appends the values of a transformation matrix to transform
bb484489d3df Introduced a new output generators for creating chart info documents.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
236 * image pixel coordinates into chart coordinates.
bb484489d3df Introduced a new output generators for creating chart info documents.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
237 *
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238 * @param cr The ElementCreator.
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239 * @param chart The chart object.
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240 * @param info The ChartRenderingInfo that is filled while chart creation.
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241 *
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242 * @return an element that contains one or more transformation matrix.
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243 */
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244 protected Element createTransformationElements(
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245 ElementCreator cr,
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246 JFreeChart chart,
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247 ChartRenderingInfo info)
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248 {
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249 logger.debug("InfoGeneratorHelper.createTransformationElements");
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250
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251 Element tf = cr.create("transformation-matrix");
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252
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253 Rectangle2D dataArea = info.getPlotInfo().getDataArea();
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254
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255 XYPlot plot = (XYPlot) chart.getPlot();
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256 ValueAxis xAxis = plot.getDomainAxis();
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257
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258 if (xAxis == null) {
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259 logger.error("There is no x axis in the chart!");
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260 return null;
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261 }
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262
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263 for (int i = 0, num = plot.getRangeAxisCount(); i < num; i++) {
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264 ValueAxis yAxis = plot.getRangeAxis(i);
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265
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266 if (yAxis == null) {
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267 logger.warn("No y axis at pos " + i + " existing.");
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268 continue;
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269 }
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270
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271 Element matrix = createTransformationElement(
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272 cr, xAxis, yAxis, dataArea, i);
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273
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274 tf.appendChild(matrix);
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275 }
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276
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277 return tf;
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278 }
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279
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280
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281 /**
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282 * Creates an element that contains values used to transform coordinates
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283 * of a coordinate system A into a coordinate system B.
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284 *
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285 * @param cr The ElementCreator.
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286 * @param xAxis The x axis of the target coordinate system.
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287 * @param yAxis The y axis of the target coordinate system.
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288 * @param dataArea The pixel coordinates of the chart image.
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289 * @param pos The dataset position.
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290 *
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291 * @return an element that contains transformation matrix values.
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292 */
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293 protected Element createTransformationElement(
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294 ElementCreator cr,
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295 ValueAxis xAxis,
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296 ValueAxis yAxis,
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297 Rectangle2D dataArea,
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298 int pos)
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299 {
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300 double[] tm = createTransformationMatrix(dataArea, xAxis, yAxis);
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301
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302 Element matrix = cr.create("matrix");
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303
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304 cr.addAttr(matrix, "pos", String.valueOf(pos), true);
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305 cr.addAttr(matrix, "sx", String.valueOf(tm[0]), true);
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306 cr.addAttr(matrix, "sy", String.valueOf(tm[1]), true);
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307 cr.addAttr(matrix, "tx", String.valueOf(tm[2]), true);
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308 cr.addAttr(matrix, "ty", String.valueOf(tm[3]), true);
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309
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310 if (xAxis instanceof DateAxis) {
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311 cr.addAttr(matrix, "xtype", "date", true);
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312 }
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313 else {
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314 cr.addAttr(matrix, "xtype", "number", true);
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315 }
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316
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317 if (yAxis instanceof DateAxis) {
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318 cr.addAttr(matrix, "ytype", "date", true);
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319 }
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320 else {
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321 cr.addAttr(matrix, "ytype", "number", true);
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322 }
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323
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324 return matrix;
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325 }
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326
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327
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328 /**
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329 * This method determines a transformation matrix to transform pixel
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330 * coordinates of the chart image into chart coordinates.
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331 *
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332 * @param dataArea The rectangle that contains the data points of the chart.
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333 * @param xAxis The x axis.
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334 * @param yAxis The y axis.
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335 *
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336 * @return a double array as follows: [sx, sy, tx, ty].
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337 */
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338 protected static double[] createTransformationMatrix(
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339 Rectangle2D dataArea,
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340 ValueAxis xAxis,
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341 ValueAxis yAxis)
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342 {
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343 logger.debug("InfoGeneratorHelper.createTransformationMatrix");
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344
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345 double offsetX = dataArea.getX();
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346 double width = dataArea.getWidth();
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347 double offsetY = dataArea.getY();
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348 double height = dataArea.getHeight();
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349
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350 Range xRange = getRangeFromAxis(xAxis);
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351 Range yRange = getRangeFromAxis(yAxis);
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352
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353 double lowerX = xRange.getLowerBound();
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354 double upperX = xRange.getUpperBound();
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355 double lowerY = yRange.getLowerBound();
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356 double upperY = yRange.getUpperBound();
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357
648
d4c4fefb095b The matrix that is used to transform chart image coordinates into chart coordinates supports inverted x-axis now.
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358 if (xAxis.isInverted()) {
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359 logger.info("X-Axis is inverted!");
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360
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361 double tmp = upperX;
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362 upperX = lowerX;
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363 lowerX = tmp;
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364 }
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365
647
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366 double dMoveX = upperX - lowerX;
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367 double fMoveX = width * lowerX;
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368 double dMoveY = lowerY - upperY;
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369 double fMoveY = height * upperY;
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370
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371 AffineTransform t1 = AffineTransform.getTranslateInstance(
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372 offsetX - ( fMoveX / dMoveX ),
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373 offsetY - ( fMoveY / dMoveY ) );
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374
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375 AffineTransform t2 = AffineTransform.getScaleInstance(
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376 width / (upperX - lowerX),
bb484489d3df Introduced a new output generators for creating chart info documents.
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377 height / (lowerY - upperY));
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378
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379 t1.concatenate(t2);
bb484489d3df Introduced a new output generators for creating chart info documents.
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380
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381 try {
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382 t1.invert();
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383
bb484489d3df Introduced a new output generators for creating chart info documents.
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384 double[] c = new double[6];
bb484489d3df Introduced a new output generators for creating chart info documents.
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385 t1.getMatrix(c);
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386
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387 return new double[] { c[0], c[3], c[4], c[5] };
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388 }
bb484489d3df Introduced a new output generators for creating chart info documents.
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389 catch (NoninvertibleTransformException e) {
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390 // do nothing
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391 logger.warn("Matrix is not invertible.");
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392 }
bb484489d3df Introduced a new output generators for creating chart info documents.
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parents:
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393
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394 return new double[] { 1d, 1d, 0d, 0d };
bb484489d3df Introduced a new output generators for creating chart info documents.
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395 }
2273
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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parents: 2261
diff changeset
396
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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parents: 2261
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397
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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398 protected static Range getRangeFromAxis(ValueAxis axis) {
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399 if (axis instanceof DateAxis) {
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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400 DateAxis dAxis = (DateAxis) axis;
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diff changeset
401 Date min = dAxis.getMinimumDate();
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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parents: 2261
diff changeset
402 Date max = dAxis.getMaximumDate();
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2261
diff changeset
403
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
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parents: 2261
diff changeset
404 return new Range(min.getTime(), max.getTime());
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2261
diff changeset
405 }
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2261
diff changeset
406 else {
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2261
diff changeset
407 return axis.getRange();
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2261
diff changeset
408 }
7b8d59436be3 Set proper bounds for date axes in the chart info document; tell the transformation matrix which type it is (date/number).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2261
diff changeset
409 }
647
bb484489d3df Introduced a new output generators for creating chart info documents.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
410 }
bb484489d3df Introduced a new output generators for creating chart info documents.
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411 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org