Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/exports/ChartExportHelper.java @ 9801:1d7a72a50183 3.2.x tip

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Assume Compose V2, consistently
author Tom Gottfried <tom@intevation.de>
date Thu, 23 Nov 2023 10:14:13 +0100
parents 0a5239a1e46e
children
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 com.lowagie.text.Document;
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12 import com.lowagie.text.DocumentException;
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13 import com.lowagie.text.PageSize;
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14 import com.lowagie.text.Rectangle;
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15
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16 import com.lowagie.text.pdf.PdfContentByte;
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17 import com.lowagie.text.pdf.PdfTemplate;
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18 import com.lowagie.text.pdf.PdfWriter;
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19
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20 import java.awt.Graphics2D;
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21 import java.awt.Transparency;
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22
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23 import java.awt.geom.Rectangle2D;
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24
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25 import java.io.IOException;
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26 import java.io.OutputStream;
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27 import java.io.OutputStreamWriter;
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28 import java.io.UnsupportedEncodingException;
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29
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30 import java.text.NumberFormat;
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31 import java.util.Map;
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32
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33 import org.jfree.chart.ChartRenderingInfo;
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34
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35 import javax.imageio.ImageIO;
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36
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37 import au.com.bytecode.opencsv.CSVWriter;
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38
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39 import org.apache.batik.svggen.SVGGraphics2D;
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40 import org.apache.batik.svggen.SVGGraphics2DIOException;
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41
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42 import org.apache.logging.log4j.Logger;
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43 import org.apache.logging.log4j.LogManager;
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44
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45 import org.jfree.chart.JFreeChart;
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46 import org.jfree.chart.plot.XYPlot;
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47 import org.jfree.data.xy.XYDataset;
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48
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49 import org.dive4elements.artifacts.CallContext;
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50
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51 import org.dive4elements.artifacts.common.utils.XMLUtils;
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52
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53 import org.dive4elements.river.jfree.XYMetaSeriesCollection;
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54 import org.dive4elements.river.utils.Formatter;
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55
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56
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57 /**
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58 * This class is a helper class which supports some methods to export charts
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59 * into specific formats.
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60 *
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61 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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62 */
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63 public class ChartExportHelper {
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64
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65 public static final String FORMAT_PNG = "png";
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66
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67 public static final String FORMAT_PDF = "pdf";
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68
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69 public static final String FORMAT_SVG = "svg";
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70
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71 public static final String FORMAT_CSV = "csv";
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72
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73 /**
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74 * Constant field to define A4 as default page size.
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75 */
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76 public static final String DEFAULT_PAGE_SIZE = "A4";
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77
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78 /**
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79 * Constant field to define UTF-8 as default encoding.
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80 */
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81 public static final String DEFAULT_ENCODING = "UTF-8";
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82
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83 /** The default separator for the CSV export. */
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84 public static final char DEFAULT_CSV_SEPARATOR = ';';
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85
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86
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87 /**
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88 * Logger used for logging with log4j.
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89 */
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90 private static Logger log = LogManager.getLogger(ChartExportHelper.class);
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91
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92
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93 /**
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94 * A method to export a <code>JFreeChart</code> as image to an
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95 * <code>OutputStream</code> with a given format, width and height.
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96 *
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97 * @param out OutputStream
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98 * @param chart JFreeChart object to be exported.
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99 * @param cc context, in which e.g. size is stored.
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100 *
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101 * @throws IOException if writing image to OutputStream failed.
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102 */
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103 public static void exportImage(
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104 OutputStream out,
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105 JFreeChart chart,
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106 CallContext cc
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107 )
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108 throws IOException
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109 {
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110 log.info("export chart as png");
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111
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112 ChartRenderingInfo info = new ChartRenderingInfo();
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113
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114 String format = (String) cc.getContextValue("chart.image.format");
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115
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116 int[] size = getSize(cc);
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117
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118 ImageIO.write(
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119 chart.createBufferedImage(
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120 size[0], size[1], Transparency.BITMASK, info
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121 ),
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122 format,
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123 out
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124 );
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125 }
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126
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127
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128 /**
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129 * A method to export a <code>JFreeChart</code> as SVG to an
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130 * <code>OutputStream</code>.
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131 *
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132 * @param out OutputStream
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133 * @param chart JFreeChart to be exported
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134 * @param context The CallContext object that contains extra chart
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135 * parameters.
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136 */
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137 public static void exportSVG(
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138 OutputStream out,
956445dd601d Added a helper class to export charts.
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139 JFreeChart chart,
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140 CallContext context
152
956445dd601d Added a helper class to export charts.
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141 ) {
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142 String encoding = (String) context.getContextValue("chart.encoding");
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143
152
956445dd601d Added a helper class to export charts.
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144 log.info("export chart as svg");
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145
956445dd601d Added a helper class to export charts.
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diff changeset
146 if (encoding == null)
956445dd601d Added a helper class to export charts.
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147 encoding = DEFAULT_ENCODING;
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148
956445dd601d Added a helper class to export charts.
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149 org.w3c.dom.Document document = XMLUtils.newDocument();
956445dd601d Added a helper class to export charts.
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150 SVGGraphics2D graphics = new SVGGraphics2D(document);
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151
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152 int[] size = getSize(context);
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153
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8428de5846e8 Employ ChartRenderingInfo when creating svg/pdf exports.
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154 ChartRenderingInfo info = new ChartRenderingInfo();
8428de5846e8 Employ ChartRenderingInfo when creating svg/pdf exports.
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155
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156 chart.draw(
5e38e2924c07 Fix code style.
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157 graphics,
5e38e2924c07 Fix code style.
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158 new Rectangle2D.Double(0.0D, 0.0D,size[0],size[1]),
5e38e2924c07 Fix code style.
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159 info);
152
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160
956445dd601d Added a helper class to export charts.
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161 try {
956445dd601d Added a helper class to export charts.
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162 graphics.stream(new OutputStreamWriter(out, encoding));
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163 }
956445dd601d Added a helper class to export charts.
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164 catch (SVGGraphics2DIOException svge) {
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165 log.error(
5e38e2924c07 Fix code style.
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166 "Error while writing svg export to output stream.", svge);
152
956445dd601d Added a helper class to export charts.
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167 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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168 catch (UnsupportedEncodingException uee) {
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169 log.error("Unsupported encoding: " + encoding, uee);
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170 }
956445dd601d Added a helper class to export charts.
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171 }
956445dd601d Added a helper class to export charts.
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172
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173
956445dd601d Added a helper class to export charts.
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174 /**
956445dd601d Added a helper class to export charts.
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175 * A method to export a <code>JFreeChart</code> as PDF to an
956445dd601d Added a helper class to export charts.
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176 * <code>OutputStream</code>.
956445dd601d Added a helper class to export charts.
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177 *
956445dd601d Added a helper class to export charts.
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178 * @param out OutputStream
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179 * @param chart JFreeChart
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180 */
956445dd601d Added a helper class to export charts.
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181 public static void exportPDF(
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182 OutputStream out,
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183 JFreeChart chart,
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184 CallContext cc
152
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185 ) {
956445dd601d Added a helper class to export charts.
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186 log.info("export chart as pdf.");
956445dd601d Added a helper class to export charts.
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187
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5966a20fc72c Enabled support for PDF and SVG chart exports.
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188 String pageFormat = (String) cc.getContextValue("chart.page.format");
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189
152
956445dd601d Added a helper class to export charts.
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190 if (pageFormat == null)
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191 pageFormat = DEFAULT_PAGE_SIZE;
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192
3270
4ac581062c40 Fix various documentation issues.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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193 // Max size of the chart.
152
956445dd601d Added a helper class to export charts.
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194 Rectangle page = PageSize.getRectangle(pageFormat);
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195 float pageWidth = page.getWidth();
956445dd601d Added a helper class to export charts.
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196 float pageHeight = page.getHeight();
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197
3270
4ac581062c40 Fix various documentation issues.
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198 // The chart width.
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5966a20fc72c Enabled support for PDF and SVG chart exports.
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199 int[] size = getSize(cc);
152
956445dd601d Added a helper class to export charts.
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200
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5966a20fc72c Enabled support for PDF and SVG chart exports.
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201 boolean landscape = size[0] > size[1];
152
956445dd601d Added a helper class to export charts.
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202
956445dd601d Added a helper class to export charts.
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203 float width = 0;
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204 float height = 0;
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205 if (landscape) {
956445dd601d Added a helper class to export charts.
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206 width = pageHeight;
956445dd601d Added a helper class to export charts.
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207 height = pageWidth;
956445dd601d Added a helper class to export charts.
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diff changeset
208 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
209 else {
956445dd601d Added a helper class to export charts.
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diff changeset
210 width = pageWidth;
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diff changeset
211 height = pageHeight;
956445dd601d Added a helper class to export charts.
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diff changeset
212 }
956445dd601d Added a helper class to export charts.
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diff changeset
213
1735
5966a20fc72c Enabled support for PDF and SVG chart exports.
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diff changeset
214 float marginLeft = (Float) cc.getContextValue(
5966a20fc72c Enabled support for PDF and SVG chart exports.
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215 "chart.marginLeft");
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
216
5966a20fc72c Enabled support for PDF and SVG chart exports.
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diff changeset
217 float marginRight = (Float) cc.getContextValue(
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diff changeset
218 "chart.marginRight");
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
219
5966a20fc72c Enabled support for PDF and SVG chart exports.
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diff changeset
220 float marginTop = (Float) cc.getContextValue(
5966a20fc72c Enabled support for PDF and SVG chart exports.
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parents: 1036
diff changeset
221 "chart.marginTop");
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
222
5966a20fc72c Enabled support for PDF and SVG chart exports.
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diff changeset
223 float marginBottom = (Float) cc.getContextValue(
5966a20fc72c Enabled support for PDF and SVG chart exports.
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diff changeset
224 "chart.marginBottom");
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
225
152
956445dd601d Added a helper class to export charts.
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diff changeset
226 float spaceX = width - marginLeft - marginRight;
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5966a20fc72c Enabled support for PDF and SVG chart exports.
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diff changeset
227 if (size[0] > spaceX) {
8856
5e38e2924c07 Fix code style.
Tom Gottfried <tom@intevation.de>
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diff changeset
228 log.warn(
5e38e2924c07 Fix code style.
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parents: 8702
diff changeset
229 "Width of the chart is too big for pdf -> resize it now.");
1735
5966a20fc72c Enabled support for PDF and SVG chart exports.
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parents: 1036
diff changeset
230 double ratio = ((double)spaceX) / size[0];
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
231 size[0] *= ratio;
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
232 size[1] *= ratio;
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
233 log.debug("Resized chart to " + size[0] + "x" + size[1]);
152
956445dd601d Added a helper class to export charts.
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parents:
diff changeset
234 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
235
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
236 float spaceY = height - marginTop - marginBottom;
1735
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
237 if (size[1] > spaceY) {
8856
5e38e2924c07 Fix code style.
Tom Gottfried <tom@intevation.de>
parents: 8702
diff changeset
238 log.warn(
5e38e2924c07 Fix code style.
Tom Gottfried <tom@intevation.de>
parents: 8702
diff changeset
239 "Height of the chart is too big for pdf -> resize it now.");
1735
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
240 double ratio = ((double)spaceY) / size[1];
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
241 size[0] *= ratio;
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
242 size[1] *= ratio;
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
243 log.debug("Resized chart to " + size[0] + "x" + size[1]);
152
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
244 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
245
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
246 Document document = null;
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
247 if (landscape) {
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
248 document = new Document(page.rotate());
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
249 log.debug("Create landscape pdf.");
7700
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
250 } else {
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
251 document = new Document(page);
152
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
252 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
253
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
254 try {
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
255 PdfWriter writer = PdfWriter.getInstance(document, out);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
256
8856
5e38e2924c07 Fix code style.
Tom Gottfried <tom@intevation.de>
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diff changeset
257 document.addSubject(
5e38e2924c07 Fix code style.
Tom Gottfried <tom@intevation.de>
parents: 8702
diff changeset
258 chart.getTitle() != null ? chart.getTitle().getText() : "");
152
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
259 document.addCreationDate();
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
260 document.open();
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
261
7700
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
262 try {
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
263 PdfContentByte content = writer.getDirectContent();
152
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
264
7700
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
265 PdfTemplate template = content.createTemplate(width, height);
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
266 Graphics2D graphics = template.createGraphics(width, height);
2160
8428de5846e8 Employ ChartRenderingInfo when creating svg/pdf exports.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1735
diff changeset
267
7700
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
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diff changeset
268 double[] origin = getCenteredAnchor(
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
269 marginLeft, marginRight, marginBottom, marginTop,
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
270 width, height,
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
271 size[0], size[1]);
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
272
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
273 Rectangle2D area = new Rectangle2D.Double(
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
274 origin[0], origin[1], size[0], size[1]);
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
275
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
276 ChartRenderingInfo info = new ChartRenderingInfo();
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
277
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
278 chart.draw(graphics, area, info);
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
279 graphics.dispose();
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
280 content.addTemplate(template, 0f, 0f);
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
281 }
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
282 finally {
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
283 document.close();
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
284 }
9211f8cafe8a (issue1559) Improve Exception handling and allow null titles
Andre Heinecke <aheinecke@intevation.de>
parents: 7688
diff changeset
285 } catch (DocumentException de) {
152
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
286 log.error("Error while exporting chart to pdf.", de);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
287 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
288 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
289
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
290
2231
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
291 /**
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
292 * A method to export a CSV file to an
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
293 * <code>OutputStream</code>.
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
294 *
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
295 * @param out OutputStream
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
296 * @param chart JFreeChart containing the data.
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
297 * @param context The CallContext object that contains extra parameters.
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
298 */
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
299 public static void exportCSV(
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
300 OutputStream out,
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
301 JFreeChart chart,
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
302 CallContext context)
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
303 {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
304 log.debug("export chart as CSV");
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
305 CSVWriter writer = null;
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
306 try {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
307 writer = new CSVWriter(
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
308 new OutputStreamWriter(
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
309 out,
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
310 DEFAULT_ENCODING),
7688
9509359c8db8 (issue1632) Use DOS line endings
Andre Heinecke <aheinecke@intevation.de>
parents: 7607
diff changeset
311 DEFAULT_CSV_SEPARATOR, '"', '\\', "\r\n");
2231
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
312 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
313 catch(UnsupportedEncodingException uee) {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
314 log.warn("Wrong encoding for CSV export.");
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
315 return;
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
316 }
7047
b5e9b8b5c8d6 issue1493: Use other numberformat for csv data from diagram.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7046
diff changeset
317
b5e9b8b5c8d6 issue1493: Use other numberformat for csv data from diagram.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7046
diff changeset
318 NumberFormat format = Formatter.getCSVFormatter(context);
b5e9b8b5c8d6 issue1493: Use other numberformat for csv data from diagram.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7046
diff changeset
319
2231
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
320 XYPlot plot = chart.getXYPlot();
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
321 int count = plot.getDatasetCount();
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
322 for (int i = 0; i < count; i++) {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
323 XYDataset data = plot.getDataset(i);
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
324 int scount = data.getSeriesCount();
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
325 for (int j = 0; j < scount; j++) {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
326 Comparable seriesKey = data.getSeriesKey(j);
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
327 log.debug("series key: " + seriesKey.toString());
7893
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
328 Map<String, String> metaData = null;
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
329 if (data instanceof XYMetaSeriesCollection) {
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
330 metaData = ((XYMetaSeriesCollection) data).getMetaData();
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
331 }
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
332 writeCSVHeader(writer, seriesKey.toString(), metaData);
7047
b5e9b8b5c8d6 issue1493: Use other numberformat for csv data from diagram.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7046
diff changeset
333 writeCSVData(writer, data, format);
2231
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
334 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
335 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
336 try {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
337 writer.close();
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
338 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
339 catch(IOException ioe) {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
340 log.error("Writing CSV export failed!");
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
341 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
342 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
343
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
344
7893
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
345 protected static void writeCSVHeader(
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
346 CSVWriter writer,
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
347 String key,
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
348 Map<String, String> metaData)
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
349 {
2231
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
350 writer.writeNext(new String[] {"#"});
7893
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
351 if (metaData != null) {
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
352 writer.writeNext(new String[] {"# " + key});
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
353 for (Map.Entry<String, String> entry: metaData.entrySet()) {
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
354 if (entry.getKey().equals("X") || entry.getKey().equals("Y")) {
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
355 continue;
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
356 }
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
357 writer.writeNext(new String[]
7992
03fc4cdb793c Separate meta data key and value by ':'.
Raimund Renkert <rrenkert@intevation.de>
parents: 7893
diff changeset
358 {"# " + entry.getKey() + ": " + entry.getValue()});
7893
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
359 }
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
360 writer.writeNext(new String[] {"#"});
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
361 writer.writeNext(new String[] {
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
362 metaData.get("X") != null ? metaData.get("X") : "X",
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
363 metaData.get("Y") != null ? metaData.get("Y") : "Y"});
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
364 }
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
365 else {
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
366 writer.writeNext(new String[] {"# " + key});
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
367 writer.writeNext(new String[] {"#"});
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
368 writer.writeNext(new String[] {"X", "Y"});
56e7e6c18c26 Use the metadata to write csv header when exporting a chart.
Raimund Renkert <rrenkert@intevation.de>
parents: 7700
diff changeset
369 }
2231
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
370 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
371
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
372
7047
b5e9b8b5c8d6 issue1493: Use other numberformat for csv data from diagram.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7046
diff changeset
373 /** Get x/y data from axis set and write it, on pair per line. */
b5e9b8b5c8d6 issue1493: Use other numberformat for csv data from diagram.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7046
diff changeset
374 protected static void writeCSVData(
b5e9b8b5c8d6 issue1493: Use other numberformat for csv data from diagram.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7046
diff changeset
375 CSVWriter writer, XYDataset data, NumberFormat format) {
2231
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
376 int series = data.getSeriesCount();
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
377 for (int i = 0; i < series; i++) {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
378 int items = data.getItemCount(i);
7607
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
379 double lastX = java.lang.Double.MAX_VALUE;
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
380 double lastY = java.lang.Double.MAX_VALUE;
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
381
2231
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
382 for (int j = 0; j < items; j++) {
7607
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
383 Number x = data.getX(i, j);
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
384 Number y = data.getY(i, j);
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
385 double xVal = data.getXValue(i, j);
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
386 double yVal = data.getYValue(i, j);
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
387
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
388 if (lastX == xVal && lastY == yVal) {
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
389 // comparing equality is ok here as we want
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
390 // to find data duplicates like they are added
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
391 // for example by the StyledSeriesBuilder in
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
392 // addStepPointsKmQ
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
393 log.debug("removing duplicate point in series");
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
394 continue;
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
395 }
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
396 lastX = xVal;
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
397 lastY = yVal;
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
398
7094
99527ef3f151 Minor refactoring for 1493.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7047
diff changeset
399 String xString;
99527ef3f151 Minor refactoring for 1493.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7047
diff changeset
400 String yString;
7151
491b645123b6 issue1493: Also transform NaN X values to empty string.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7095
diff changeset
401
7046
50b9959330de issue971: Bring a formatter in (a bad) place.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7045
diff changeset
402 try {
7607
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
403 xString = java.lang.Double.isNaN(xVal)
7151
491b645123b6 issue1493: Also transform NaN X values to empty string.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7095
diff changeset
404 ? ""
7607
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
405 : format.format(x);
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
406 yString = java.lang.Double.isNaN(yVal)
7095
bdadffad35b1 issue1493: Don't let NaNs slip through csv export.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7094
diff changeset
407 ? ""
7607
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
408 : format.format(y);
7046
50b9959330de issue971: Bring a formatter in (a bad) place.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7045
diff changeset
409 }
50b9959330de issue971: Bring a formatter in (a bad) place.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7045
diff changeset
410 catch (NumberFormatException nfe) {
7607
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
411 xString = x.toString();
ef99781bcec7 (issue1667) Remove duplicate points in the same series in Diagram CSV export
Andre Heinecke <aheinecke@intevation.de>
parents: 7151
diff changeset
412 yString = y.toString();
7046
50b9959330de issue971: Bring a formatter in (a bad) place.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7045
diff changeset
413 }
7094
99527ef3f151 Minor refactoring for 1493.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7047
diff changeset
414 writer.writeNext(new String[] {
99527ef3f151 Minor refactoring for 1493.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7047
diff changeset
415 xString,
99527ef3f151 Minor refactoring for 1493.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 7047
diff changeset
416 yString});
2231
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
417 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
418 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
419 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
420
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
421
1735
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
422 public static int[] getSize(CallContext cc) {
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
423 int[] size = new int[2];
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
424
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
425 size[0] = (Integer) cc.getContextValue("chart.width");
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
426 size[1] = (Integer) cc.getContextValue("chart.height");
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
427
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
428 return size;
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
429 }
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
430
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
431
152
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
432 /**
8856
5e38e2924c07 Fix code style.
Tom Gottfried <tom@intevation.de>
parents: 8702
diff changeset
433 * Returns the anchor of the chart so that the chart is centered
152
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
434 * according to the given parameters.
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
435 *
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
436 * @param mLeft Left margin
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
437 * @param mRight Right margin
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
438 * @param mBottom Bottom margin
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
439 * @param mTop Top margin
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
440 * @param width The complete width of the drawing area.
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
441 * @param height The complete height of the drawing area.
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
442 * @param chartWidth The width of the chart.
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
443 * @param chartHeight The height of the chart.
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
444 *
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
445 * @return an array that contains the anchor for a chart with the given
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
446 * parameters. The first value is the x point, the second value is the y
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
447 * point.
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
448 */
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
449 public static double[] getCenteredAnchor(
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
450 double mLeft, double mRight, double mBottom, double mTop,
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
451 double width, double height,
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
452 double chartWidth, double chartHeight
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
453 ) {
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
454 if (log.isDebugEnabled()) {
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
455 log.debug("Calculate centered origin...");
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
456 log.debug("-> PDF width : " + width);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
457 log.debug("-> PDF height : " + height);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
458 log.debug("-> Chart width : " + chartWidth);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
459 log.debug("-> Chart height : " + chartHeight);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
460 log.debug("-> margin left : " + mLeft);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
461 log.debug("-> margin right : " + mRight);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
462 log.debug("-> margin bottom: " + mBottom);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
463 log.debug("-> margin top : " + mTop);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
464 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
465
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
466 double[] origin = new double[2];
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
467
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
468 double centerX = width / 2;
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
469 double centerY = height / 2;
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
470
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
471 origin[0] = centerX - chartWidth / 2;
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
472 origin[1] = centerY - chartHeight / 2;
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
473
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
474 origin[0] = origin[0] >= mLeft ? origin[0] : mLeft;
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
475 origin[1] = origin[1] >= mTop ? origin[1] : mTop;
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
476
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
477 if (log.isDebugEnabled()) {
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
478 log.debug("==> centered left origin: " + origin[0]);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
479 log.debug("==> centered top origin: " + origin[1]);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
480 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
481
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
482 return origin;
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
483 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
484 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
485 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org