Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/ChartExportHelper.java @ 4282:8b4988815974

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Added marker for Ws and Qs in Historical Discharge WQ charts. Therefore, the XYChartGenerator got two new methods addDomainMarker(Marker, boolean) and addValueMarker(Marker, boolean). The boolean parameters determine, if the marker should be visible or not. This is analogous to addAxisSeries(XYSeries, int, boolean).
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 29 Oct 2012 05:59:27 +0100
parents d9af29a4bb85
children
rev   line source
152
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1 /*
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2 * Copyright (c) 2011 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8 package de.intevation.flys.exports;
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9
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10 import com.lowagie.text.Document;
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11 import com.lowagie.text.DocumentException;
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12 import com.lowagie.text.PageSize;
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13 import com.lowagie.text.Rectangle;
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14
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15 import com.lowagie.text.pdf.PdfContentByte;
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16 import com.lowagie.text.pdf.PdfTemplate;
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17 import com.lowagie.text.pdf.PdfWriter;
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18
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19 import java.awt.Graphics2D;
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20 import java.awt.Transparency;
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21
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22 import java.awt.geom.Rectangle2D.Double;
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23
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24 import java.awt.geom.Rectangle2D;
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25
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26 import java.io.IOException;
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27 import java.io.OutputStream;
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28 import java.io.OutputStreamWriter;
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29 import java.io.UnsupportedEncodingException;
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30 import org.jfree.chart.ChartRenderingInfo;
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31
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32 import javax.imageio.ImageIO;
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33
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34 import au.com.bytecode.opencsv.CSVWriter;
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35
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36 import org.apache.batik.svggen.SVGGraphics2D;
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37 import org.apache.batik.svggen.SVGGraphics2DIOException;
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38
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39 import org.apache.log4j.Logger;
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40
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41 import org.jfree.chart.JFreeChart;
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42 import org.jfree.chart.plot.XYPlot;
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43 import org.jfree.data.xy.XYDataset;
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44
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45 import de.intevation.artifacts.CallContext;
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46
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47 import de.intevation.artifacts.common.utils.XMLUtils;
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48
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49
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50 /**
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51 * This class is a helper class which supports some methods to export charts
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52 * into specific formats.
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53 *
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54 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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55 */
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56 public class ChartExportHelper {
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57
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58 public static final String FORMAT_PNG = "png";
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59
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60 public static final String FORMAT_PDF = "pdf";
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61
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62 public static final String FORMAT_SVG = "svg";
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63
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64 public static final String FORMAT_CSV = "csv";
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65
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66 /**
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67 * Constant field to define A4 as default page size.
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68 */
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69 public static final String DEFAULT_PAGE_SIZE = "A4";
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70
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71 /**
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72 * Constant field to define UTF-8 as default encoding.
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73 */
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74 public static final String DEFAULT_ENCODING = "UTF-8";
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75
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76 /** The default separator for the CSV export. */
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77 public static final char DEFAULT_CSV_SEPARATOR = ',';
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78
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79
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80 /**
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81 * Logger used for logging with log4j.
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82 */
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83 private static Logger log = Logger.getLogger(ChartExportHelper.class);
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84
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85
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86 /**
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87 * A method to export a <code>JFreeChart</code> as image to an
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88 * <code>OutputStream</code> with a given format, width and height.
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89 *
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90 * @param out OutputStream
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91 * @param chart JFreeChart object to be exported.
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92 * @param cc context, in which e.g. size is stored.
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93 *
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94 * @throws IOException if writing image to OutputStream failed.
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95 */
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96 public static void exportImage(
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97 OutputStream out,
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98 JFreeChart chart,
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99 CallContext cc
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100 )
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101 throws IOException
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102 {
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103 log.info("export chart as png");
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104
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105 ChartRenderingInfo info = new ChartRenderingInfo();
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106
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107 String format = (String) cc.getContextValue("chart.image.format");
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108
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109 int[] size = getSize(cc);
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110
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111 ImageIO.write(
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112 chart.createBufferedImage(
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113 size[0], size[1], Transparency.BITMASK, info
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114 ),
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115 format,
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116 out
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117 );
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118 }
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119
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120
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121 /**
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122 * A method to export a <code>JFreeChart</code> as SVG to an
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123 * <code>OutputStream</code>.
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124 *
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125 * @param out OutputStream
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126 * @param chart JFreeChart to be exported
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127 * @param context The CallContext object that contains extra chart
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128 * parameters.
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129 */
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130 public static void exportSVG(
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131 OutputStream out,
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132 JFreeChart chart,
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133 CallContext context
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134 ) {
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135 String encoding = (String) context.getContextValue("chart.encoding");
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136
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137 log.info("export chart as svg");
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138
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139 if (encoding == null)
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140 encoding = DEFAULT_ENCODING;
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141
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142 org.w3c.dom.Document document = XMLUtils.newDocument();
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143 SVGGraphics2D graphics = new SVGGraphics2D(document);
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144
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145 int[] size = getSize(context);
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146
2160
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147 ChartRenderingInfo info = new ChartRenderingInfo();
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148
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149 chart.draw(graphics, new Rectangle2D.Double(0.0D, 0.0D,size[0],size[1]), info);
152
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150
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151 try {
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152 graphics.stream(new OutputStreamWriter(out, encoding));
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153 }
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154 catch (SVGGraphics2DIOException svge) {
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155 log.error("Error while writing svg export to output stream.", svge);
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156 }
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157 catch (UnsupportedEncodingException uee) {
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158 log.error("Unsupported encoding: " + encoding, uee);
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159 }
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160 }
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161
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162
956445dd601d Added a helper class to export charts.
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163 /**
956445dd601d Added a helper class to export charts.
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164 * A method to export a <code>JFreeChart</code> as PDF to an
956445dd601d Added a helper class to export charts.
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165 * <code>OutputStream</code>.
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166 *
956445dd601d Added a helper class to export charts.
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167 * @param out OutputStream
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168 * @param chart JFreeChart
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169 */
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170 public static void exportPDF(
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171 OutputStream out,
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172 JFreeChart chart,
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173 CallContext cc
152
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174 ) {
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175 log.info("export chart as pdf.");
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176
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177 String pageFormat = (String) cc.getContextValue("chart.page.format");
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178
152
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179 if (pageFormat == null)
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180 pageFormat = DEFAULT_PAGE_SIZE;
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181
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4ac581062c40 Fix various documentation issues.
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182 // Max size of the chart.
152
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183 Rectangle page = PageSize.getRectangle(pageFormat);
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184 float pageWidth = page.getWidth();
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185 float pageHeight = page.getHeight();
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186
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4ac581062c40 Fix various documentation issues.
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187 // The chart width.
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188 int[] size = getSize(cc);
152
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189
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190 boolean landscape = size[0] > size[1];
152
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191
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192 float width = 0;
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193 float height = 0;
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194 if (landscape) {
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195 width = pageHeight;
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196 height = pageWidth;
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197 }
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198 else {
956445dd601d Added a helper class to export charts.
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199 width = pageWidth;
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200 height = pageHeight;
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201 }
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202
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5966a20fc72c Enabled support for PDF and SVG chart exports.
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203 float marginLeft = (Float) cc.getContextValue(
5966a20fc72c Enabled support for PDF and SVG chart exports.
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204 "chart.marginLeft");
5966a20fc72c Enabled support for PDF and SVG chart exports.
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diff changeset
205
5966a20fc72c Enabled support for PDF and SVG chart exports.
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206 float marginRight = (Float) cc.getContextValue(
5966a20fc72c Enabled support for PDF and SVG chart exports.
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207 "chart.marginRight");
5966a20fc72c Enabled support for PDF and SVG chart exports.
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diff changeset
208
5966a20fc72c Enabled support for PDF and SVG chart exports.
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209 float marginTop = (Float) cc.getContextValue(
5966a20fc72c Enabled support for PDF and SVG chart exports.
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210 "chart.marginTop");
5966a20fc72c Enabled support for PDF and SVG chart exports.
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211
5966a20fc72c Enabled support for PDF and SVG chart exports.
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212 float marginBottom = (Float) cc.getContextValue(
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213 "chart.marginBottom");
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214
152
956445dd601d Added a helper class to export charts.
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215 float spaceX = width - marginLeft - marginRight;
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216 if (size[0] > spaceX) {
152
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217 log.warn("Width of the chart is too big for pdf -> resize it now.");
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5966a20fc72c Enabled support for PDF and SVG chart exports.
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218 double ratio = ((double)spaceX) / size[0];
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219 size[0] *= ratio;
5966a20fc72c Enabled support for PDF and SVG chart exports.
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220 size[1] *= ratio;
5966a20fc72c Enabled support for PDF and SVG chart exports.
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221 log.debug("Resized chart to " + size[0] + "x" + size[1]);
152
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diff changeset
222 }
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diff changeset
223
956445dd601d Added a helper class to export charts.
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diff changeset
224 float spaceY = height - marginTop - marginBottom;
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225 if (size[1] > spaceY) {
152
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diff changeset
226 log.warn("Height of the chart is too big for pdf -> resize it now.");
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227 double ratio = ((double)spaceY) / size[1];
5966a20fc72c Enabled support for PDF and SVG chart exports.
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diff changeset
228 size[0] *= ratio;
5966a20fc72c Enabled support for PDF and SVG chart exports.
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diff changeset
229 size[1] *= ratio;
5966a20fc72c Enabled support for PDF and SVG chart exports.
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diff changeset
230 log.debug("Resized chart to " + size[0] + "x" + size[1]);
152
956445dd601d Added a helper class to export charts.
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diff changeset
231 }
956445dd601d Added a helper class to export charts.
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232
956445dd601d Added a helper class to export charts.
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diff changeset
233 Document document = null;
956445dd601d Added a helper class to export charts.
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diff changeset
234 if (landscape) {
956445dd601d Added a helper class to export charts.
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diff changeset
235 document = new Document(page.rotate());
956445dd601d Added a helper class to export charts.
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diff changeset
236 log.debug("Create landscape pdf.");
956445dd601d Added a helper class to export charts.
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diff changeset
237 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
238 else
956445dd601d Added a helper class to export charts.
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diff changeset
239 document = new Document(page);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
240
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
241 try {
956445dd601d Added a helper class to export charts.
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diff changeset
242 PdfWriter writer = PdfWriter.getInstance(document, out);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
243
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diff changeset
244 document.addSubject(chart.getTitle().getText());
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
245 document.addCreationDate();
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
246 document.open();
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
247
956445dd601d Added a helper class to export charts.
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diff changeset
248 PdfContentByte content = writer.getDirectContent();
956445dd601d Added a helper class to export charts.
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diff changeset
249
956445dd601d Added a helper class to export charts.
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diff changeset
250 PdfTemplate template = content.createTemplate(width, height);
956445dd601d Added a helper class to export charts.
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parents:
diff changeset
251 Graphics2D graphics = template.createGraphics(width, height);
956445dd601d Added a helper class to export charts.
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diff changeset
252
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diff changeset
253 double[] origin = getCenteredAnchor(
956445dd601d Added a helper class to export charts.
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parents:
diff changeset
254 marginLeft, marginRight, marginBottom, marginTop,
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
255 width, height,
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5966a20fc72c Enabled support for PDF and SVG chart exports.
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diff changeset
256 size[0], size[1]);
152
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
257
956445dd601d Added a helper class to export charts.
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diff changeset
258 Rectangle2D area = new Rectangle2D.Double(
1735
5966a20fc72c Enabled support for PDF and SVG chart exports.
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259 origin[0], origin[1], size[0], size[1]);
152
956445dd601d Added a helper class to export charts.
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parents:
diff changeset
260
2160
8428de5846e8 Employ ChartRenderingInfo when creating svg/pdf exports.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1735
diff changeset
261 ChartRenderingInfo info = new ChartRenderingInfo();
8428de5846e8 Employ ChartRenderingInfo when creating svg/pdf exports.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1735
diff changeset
262
8428de5846e8 Employ ChartRenderingInfo when creating svg/pdf exports.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1735
diff changeset
263 chart.draw(graphics, area, info);
152
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
264 graphics.dispose();
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
265 content.addTemplate(template, 0f, 0f);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
266 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
267 catch (DocumentException de) {
956445dd601d Added a helper class to export charts.
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parents:
diff changeset
268 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
269 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
270 finally {
956445dd601d Added a helper class to export charts.
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diff changeset
271 document.close();
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
272 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
273 }
956445dd601d Added a helper class to export charts.
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274
956445dd601d Added a helper class to export charts.
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275
2231
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
276 /**
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
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diff changeset
277 * A method to export a CSV file to an
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
278 * <code>OutputStream</code>.
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
279 *
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
280 * @param out OutputStream
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
281 * @param chart JFreeChart containing the data.
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
282 * @param context The CallContext object that contains extra parameters.
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
283 */
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
284 public static void exportCSV(
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
285 OutputStream out,
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
286 JFreeChart chart,
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
287 CallContext context)
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
288 {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
289 log.debug("export chart as CSV");
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
290 CSVWriter writer = null;
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
291 try {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
292 writer = new CSVWriter(
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
293 new OutputStreamWriter(
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
294 out,
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
295 DEFAULT_ENCODING),
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
296 DEFAULT_CSV_SEPARATOR);
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
297 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
298 catch(UnsupportedEncodingException uee) {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
299 log.warn("Wrong encoding for CSV export.");
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
300 return;
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
301 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
302 XYPlot plot = chart.getXYPlot();
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
303 int count = plot.getDatasetCount();
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
304 for (int i = 0; i < count; i++) {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
305 XYDataset data = plot.getDataset(i);
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
306 int scount = data.getSeriesCount();
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
307 for (int j = 0; j < scount; j++) {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
308 Comparable seriesKey = data.getSeriesKey(j);
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
309 log.debug("series key: " + seriesKey.toString());
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
310 writeCSVHeader(writer, seriesKey.toString());
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
311 writeCSVData(writer, data);
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 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
314 try {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
315 writer.close();
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
316 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
317 catch(IOException ioe) {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
318 log.error("Writing CSV export failed!");
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
319 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
320 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
321
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
322
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
323 protected static void writeCSVHeader(CSVWriter writer, String key) {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
324 writer.writeNext(new String[] {"#"});
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
325 writer.writeNext(new String[] {"# " + key});
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
326 writer.writeNext(new String[] {"#"});
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
327 writer.writeNext(new String[] {"X", "Y"});
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
328 }
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
329
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
330
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
331 protected static void writeCSVData(CSVWriter writer, XYDataset data) {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
332 int series = data.getSeriesCount();
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
333 for (int i = 0; i < series; i++) {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
334 int items = data.getItemCount(i);
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
335 for (int j = 0; j < items; j++) {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
336 log.debug("write data: " + data.getX(i, j) + ", " + data.getY(i, j));
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
337 writer.writeNext(new String[] {
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
338 data.getX(i, j).toString(),
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
339 data.getY(i, j).toString()});
5648b5b34ae2 Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2160
diff changeset
340 }
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
1735
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
345 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
346 int[] size = new int[2];
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
347
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
348 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
349 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
350
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
351 return size;
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
352 }
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
353
5966a20fc72c Enabled support for PDF and SVG chart exports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1036
diff changeset
354
152
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
355 /**
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
356 * This method returns the anchor of the chart so that the chart is centered
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
357 * according to the given parameters.
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
358 *
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
359 * @param mLeft Left margin
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
360 * @param mRight Right margin
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
361 * @param mBottom Bottom margin
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
362 * @param mTop Top margin
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
363 * @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
364 * @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
365 * @param chartWidth The width of the chart.
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
366 * @param chartHeight The height of the chart.
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
367 *
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
368 * @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
369 * 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
370 * point.
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
371 */
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
372 public static double[] getCenteredAnchor(
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
373 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
374 double width, double height,
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
375 double chartWidth, double chartHeight
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
376 ) {
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
377 if (log.isDebugEnabled()) {
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
378 log.debug("Calculate centered origin...");
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
379 log.debug("-> PDF width : " + width);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
380 log.debug("-> PDF height : " + height);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
381 log.debug("-> Chart width : " + chartWidth);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
382 log.debug("-> Chart height : " + chartHeight);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
383 log.debug("-> margin left : " + mLeft);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
384 log.debug("-> margin right : " + mRight);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
385 log.debug("-> margin bottom: " + mBottom);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
386 log.debug("-> margin top : " + mTop);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
387 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
388
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
389 double[] origin = new double[2];
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
390
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
391 double centerX = width / 2;
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
392 double centerY = height / 2;
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
393
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
394 origin[0] = centerX - chartWidth / 2;
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
395 origin[1] = centerY - chartHeight / 2;
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
396
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
397 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
398 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
399
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
400 if (log.isDebugEnabled()) {
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
401 log.debug("==> centered left origin: " + origin[0]);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
402 log.debug("==> centered top origin: " + origin[1]);
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
403 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
404
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
405 return origin;
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
406 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
407 }
956445dd601d Added a helper class to export charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
408 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org