Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/exports/InfoGeneratorHelper.java @ 6332:f5bb53106ae8

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Remove createBarriersLayer and createBarriers The generated mapfiles did not work and were just confusing. This looks like historical cruft that was never deleted. The real barrier mapfiles are created in the Floodmap state
author Andre Heinecke <aheinecke@intevation.de>
date Thu, 13 Jun 2013 17:24:56 +0200
parents af13ceeba52a
children 9b52c501c57e
rev   line source
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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
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52 public InfoGeneratorHelper(ChartGenerator generator) {
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53 this.generator = generator;
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54 }
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55
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56
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57 /**
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58 * Triggers the creation of the chart info document.
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59 *
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60 * @param chart The JFreeChart chart.
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61 * @param info An info object that has been created while chart creation.
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62 *
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63 * @return the info document.
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64 */
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65 public Document createInfoDocument(
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66 JFreeChart chart,
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67 ChartRenderingInfo info)
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68 {
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69 logger.debug("InfoGeneratorHelper.createInfoDocument");
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70
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71 Document doc = XMLUtils.newDocument();
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72
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73 ElementCreator cr = new ElementCreator(
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74 doc,
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75 ArtifactNamespaceContext.NAMESPACE_URI,
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76 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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77
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78 Element chartinfo = cr.create("chartinfo");
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79
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80 chartinfo.appendChild(createAxesElements(cr, chart));
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81 chartinfo.appendChild(createTransformationElements(cr, chart, info));
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82
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83 doc.appendChild(chartinfo);
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84
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85 return doc;
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86 }
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87
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88
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89 /**
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90 * This method create a axes element that contains all domain and range
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91 * axes of the given chart.
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92 *
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93 * @param cr The ElementCreator.
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94 * @param chart The chart that provides range information of its axes.
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95 *
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96 * @return an element with axes information.
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97 */
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98 protected Element createAxesElements(
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99 ElementCreator cr,
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100 JFreeChart chart)
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101 {
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102 logger.debug("InfoGeneratorHelper.createRangeElements");
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103
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104 Element axes = cr.create("axes");
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105
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106 XYPlot plot = (XYPlot) chart.getPlot();
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107
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108 int dAxisCount = plot.getDomainAxisCount();
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109 for (int i = 0; i < dAxisCount; i++) {
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110 ValueAxis axis = plot.getDomainAxis(i);
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111 XYDataset data = plot.getDataset(i);
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112
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113 if (axis != null) {
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114 Element e = createAxisElement(cr, axis, data, "domain", i);
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115 axes.appendChild(e);
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116 }
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117 }
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118
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119 int rAxisCount = plot.getRangeAxisCount();
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120 for (int i = 0; i < rAxisCount; i++) {
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121 ValueAxis axis = plot.getRangeAxis(i);
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122 XYDataset data = plot.getDataset(i);
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123
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124 if (axis == null || data == null) {
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125 logger.warn("Axis or dataset is empty at pos: " + i);
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126 continue;
659
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127 }
673
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128
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129 Element e = createAxisElement(cr, axis, data, "range", i);
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130 axes.appendChild(e);
659
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131 }
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132
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133 return axes;
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134 }
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135
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136
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137 /**
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138 * This method create a axis element for a given <i>axis</i> and
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139 * <i>type</i>. Type can be one of 'domain' or 'range'.
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140 *
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141 * @param cr The ElementCreator
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142 * @param axis The axis that provides range information.
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143 * @param dataset The dataset for min/max determination.
659
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144 * @param type The axis type ('domain' or 'range').
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145 * @param pos The position in the chart.
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146 *
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147 * @return An element that contains range information of a given axis.
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148 */
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149 protected Element createAxisElement(
659
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150 ElementCreator cr,
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151 ValueAxis axis,
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152 XYDataset dataset,
659
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153 String type,
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154 int pos)
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diff changeset
155 {
1944
21a4d2c677a1 Changed doOut signature, side effect from blackboard feature (to come).
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diff changeset
156 logger.debug("createAxisElement " + pos);
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157 logger.debug("Axis is from type: " + axis.getClass());
659
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158
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159 Element e = cr.create(type);
1944
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160 cr.addAttr(e, "pos", String.valueOf(pos), true);
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161
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162 if (axis instanceof DateAxis) {
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163 prepareDateAxisElement(
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164 e, cr, (DateAxis) axis, dataset, type, pos);
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165 }
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diff changeset
166 else {
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167 prepareNumberAxisElement(
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168 e, cr, (NumberAxis) axis, dataset, type, pos);
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169 }
6aeb71517136 Registered an Info generator for historical discharge curves; made some adaptions in XYChartGenerator, ChartGenerator and TimeseriesChartGenerator.
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170
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171 return e;
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172 }
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173
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174
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175 protected Element prepareNumberAxisElement(
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176 Element e,
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177 ElementCreator cr,
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178 NumberAxis axis,
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179 XYDataset dataset,
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180 String type,
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181 int pos
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182 ) {
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183 Range range = axis.getRange();
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184
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185 cr.addAttr(e, "from", String.valueOf(range.getLowerBound()), true);
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186 cr.addAttr(e, "to", String.valueOf(range.getUpperBound()), true);
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187 cr.addAttr(e, "axistype", "number", true);
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188
1944
21a4d2c677a1 Changed doOut signature, side effect from blackboard feature (to come).
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diff changeset
189 Range[] rs = generator.getRangesForAxis(pos);
673
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190 Range r = null;
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191
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diff changeset
192 if (type.equals("range")) {
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193 r = rs[1];
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194 }
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195 else {
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diff changeset
196 r = rs[0];
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197 }
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198
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diff changeset
199 cr.addAttr(e, "min", String.valueOf(r.getLowerBound()), true);
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diff changeset
200 cr.addAttr(e, "max", String.valueOf(r.getUpperBound()), true);
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diff changeset
201
659
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diff changeset
202 return e;
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203 }
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204
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205
2273
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206 protected Element prepareDateAxisElement(
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diff changeset
207 Element e,
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208 ElementCreator cr,
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209 DateAxis axis,
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210 XYDataset dataset,
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diff changeset
211 String type,
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
212 int pos
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 ) {
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
214 Date from = axis.getMinimumDate();
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diff changeset
215 Date to = axis.getMaximumDate();
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diff changeset
216
2330
594885703687 Picked changes r4015:4026 from trunk.
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parents: 2273
diff changeset
217 Bounds bounds = null;
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parents: 2273
diff changeset
218 if (type.equals("range")) {
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219 bounds = generator.getYBounds(pos);
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parents: 2273
diff changeset
220 }
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221 else {
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222 bounds = generator.getXBounds(pos);
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diff changeset
223 }
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224
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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225 cr.addAttr(e, "axistype", "date", true);
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226 cr.addAttr(e, "from", String.valueOf(from.getTime()), true);
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227 cr.addAttr(e, "to", String.valueOf(to.getTime()), true);
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228
2330
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229 cr.addAttr(e, "min", bounds.getLower().toString(), true);
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diff changeset
230 cr.addAttr(e, "max", bounds.getUpper().toString(), true);
2273
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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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232 return e;
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233 }
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234
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235
659
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diff changeset
236 /**
647
bb484489d3df Introduced a new output generators for creating chart info documents.
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parents:
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237 * This method appends the values of a transformation matrix to transform
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238 * image pixel coordinates into chart coordinates.
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239 *
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240 * @param cr The ElementCreator.
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241 * @param chart The chart object.
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242 * @param info The ChartRenderingInfo that is filled while chart creation.
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243 *
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244 * @return an element that contains one or more transformation matrix.
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245 */
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246 protected Element createTransformationElements(
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247 ElementCreator cr,
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248 JFreeChart chart,
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249 ChartRenderingInfo info)
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250 {
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251 logger.debug("InfoGeneratorHelper.createTransformationElements");
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252
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253 Element tf = cr.create("transformation-matrix");
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254
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255 Rectangle2D dataArea = info.getPlotInfo().getDataArea();
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256
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257 XYPlot plot = (XYPlot) chart.getPlot();
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258 ValueAxis xAxis = plot.getDomainAxis();
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259
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260 if (xAxis == null) {
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261 logger.error("There is no x axis in the chart!");
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262 return null;
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263 }
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264
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265 for (int i = 0, num = plot.getRangeAxisCount(); i < num; i++) {
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266 ValueAxis yAxis = plot.getRangeAxis(i);
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267
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268 if (yAxis == null) {
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269 logger.warn("No y axis at pos " + i + " existing.");
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270 continue;
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271 }
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272
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273 Element matrix = createTransformationElement(
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274 cr, xAxis, yAxis, dataArea, i);
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275
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276 tf.appendChild(matrix);
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277 }
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278
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279 return tf;
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280 }
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281
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282
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283 /**
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284 * Creates an element that contains values used to transform coordinates
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285 * of a coordinate system A into a coordinate system B.
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286 *
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287 * @param cr The ElementCreator.
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288 * @param xAxis The x axis of the target coordinate system.
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289 * @param yAxis The y axis of the target coordinate system.
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290 * @param dataArea The pixel coordinates of the chart image.
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291 * @param pos The dataset position.
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292 *
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293 * @return an element that contains transformation matrix values.
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294 */
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295 protected Element createTransformationElement(
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296 ElementCreator cr,
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297 ValueAxis xAxis,
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298 ValueAxis yAxis,
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299 Rectangle2D dataArea,
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300 int pos)
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301 {
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302 double[] tm = createTransformationMatrix(dataArea, xAxis, yAxis);
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303
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304 Element matrix = cr.create("matrix");
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305
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306 cr.addAttr(matrix, "pos", String.valueOf(pos), true);
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307 cr.addAttr(matrix, "sx", String.valueOf(tm[0]), true);
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308 cr.addAttr(matrix, "sy", String.valueOf(tm[1]), true);
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309 cr.addAttr(matrix, "tx", String.valueOf(tm[2]), true);
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310 cr.addAttr(matrix, "ty", String.valueOf(tm[3]), true);
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311
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312 if (xAxis instanceof DateAxis) {
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313 cr.addAttr(matrix, "xtype", "date", true);
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314 }
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315 else {
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316 cr.addAttr(matrix, "xtype", "number", true);
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317 }
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318
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319 if (yAxis instanceof DateAxis) {
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320 cr.addAttr(matrix, "ytype", "date", true);
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321 }
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322 else {
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323 cr.addAttr(matrix, "ytype", "number", true);
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324 }
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325
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326 return matrix;
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327 }
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328
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329
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330 /**
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331 * This method determines a transformation matrix to transform pixel
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332 * coordinates of the chart image into chart coordinates.
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333 *
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334 * @param dataArea The rectangle that contains the data points of the chart.
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335 * @param xAxis The x axis.
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336 * @param yAxis The y axis.
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337 *
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338 * @return a double array as follows: [sx, sy, tx, ty].
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339 */
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340 protected static double[] createTransformationMatrix(
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341 Rectangle2D dataArea,
648
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342 ValueAxis xAxis,
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343 ValueAxis yAxis)
647
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344 {
648
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345 logger.debug("InfoGeneratorHelper.createTransformationMatrix");
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346
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347 double offsetX = dataArea.getX();
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348 double width = dataArea.getWidth();
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349 double offsetY = dataArea.getY();
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350 double height = dataArea.getHeight();
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351
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352 Range xRange = getRangeFromAxis(xAxis);
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353 Range yRange = getRangeFromAxis(yAxis);
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354
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355 double lowerX = xRange.getLowerBound();
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356 double upperX = xRange.getUpperBound();
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357 double lowerY = yRange.getLowerBound();
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358 double upperY = yRange.getUpperBound();
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359
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360 if (xAxis.isInverted()) {
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361 logger.info("X-Axis is inverted!");
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362
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363 double tmp = upperX;
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364 upperX = lowerX;
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365 lowerX = tmp;
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366 }
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367
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368 double dMoveX = upperX - lowerX;
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369 double fMoveX = width * lowerX;
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370 double dMoveY = lowerY - upperY;
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371 double fMoveY = height * upperY;
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372
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373 AffineTransform t1 = AffineTransform.getTranslateInstance(
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374 offsetX - ( fMoveX / dMoveX ),
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375 offsetY - ( fMoveY / dMoveY ) );
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376
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377 AffineTransform t2 = AffineTransform.getScaleInstance(
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378 width / (upperX - lowerX),
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379 height / (lowerY - upperY));
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380
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381 t1.concatenate(t2);
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382
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383 try {
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384 t1.invert();
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385
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386 double[] c = new double[6];
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387 t1.getMatrix(c);
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388
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389 return new double[] { c[0], c[3], c[4], c[5] };
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390 }
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391 catch (NoninvertibleTransformException e) {
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392 // do nothing
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393 logger.warn("Matrix is not invertible.");
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394 }
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395
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396 return new double[] { 1d, 1d, 0d, 0d };
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397 }
2273
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398
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399
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400 protected static Range getRangeFromAxis(ValueAxis axis) {
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401 if (axis instanceof DateAxis) {
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402 DateAxis dAxis = (DateAxis) axis;
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403 Date min = dAxis.getMinimumDate();
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404 Date max = dAxis.getMaximumDate();
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405
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406 return new Range(min.getTime(), max.getTime());
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407 }
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408 else {
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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409 return axis.getRange();
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410 }
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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411 }
647
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412 }
bb484489d3df Introduced a new output generators for creating chart info documents.
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413 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org