Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/HorizontalProfileChart.java @ 799:feeaf5aec552

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ISSUE213: Wrong Geometrytype used for the generation of an Layer with Multipolygon-Geometries gnv-artifacts/trunk@881 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Tue, 06 Apr 2010 11:56:53 +0000
parents e8a9e84a0328
children 22c18083225e
rev   line source
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1 package de.intevation.gnv.chart;
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2
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3 import com.vividsolutions.jts.geom.Point;
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4
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5 import com.vividsolutions.jts.io.ParseException;
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6 import com.vividsolutions.jts.io.WKTReader;
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7
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8 import de.intevation.gnv.geobackend.base.Result;
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9
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10 import de.intevation.gnv.utils.DistanceCalculator;
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12 import java.util.Collection;
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13 import java.util.Locale;
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14 import java.util.Map;
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16 import org.apache.log4j.Logger;
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18 import org.jfree.chart.ChartTheme;
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20 import org.jfree.chart.plot.PlotOrientation;
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22 import org.jfree.data.general.Series;
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23
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24 import org.jfree.data.xy.XYSeries;
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25
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26 /**
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27 * This class is used to create xy-charts of horizontal profiles.
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28 *
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29 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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30 */
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31 public class HorizontalProfileChart
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32 extends VerticalProfileChart
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33 {
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34 /**
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35 * Logger used for logging with log4j.
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36 */
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37 private static Logger log = Logger.getLogger(HorizontalProfileChart.class);
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38
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39 /**
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40 * <code>WKTReader</code> used to turn wkt strings into geometries.
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41 */
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42 private static WKTReader wktReader = new WKTReader();
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44 /**
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45 * The first point in a HorizontalProfileChart. It is used to calculate the
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46 * distance between the currently processed point an the start.
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47 */
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48 private Point firstPoint;
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49
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50 /**
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51 * Constructor used to create horizontal profile charts.
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52 *
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53 * @param labels Labels used to be displayed in title, subtitle and so on.
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54 * @param theme ChartTheme used to adjust the rendering of this chart.
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55 * @param parameters Collection containing a bunch of parameters.
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56 * @param measurements Collection containing a bunch of measurements.
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57 * @param dates Collection containing a bunch of date objects.
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58 * @param result Collection containing a bunch of <code>Result</code>
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59 * objects which contain the actual data items to be displayed.
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60 * @param timeGaps Collection with timegap definitions.
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61 * @param locale Locale used to specify the format of labels, numbers, ...
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62 * @param linesVisible Render lines between data points if true, otherwise
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63 * not.
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64 * @param shapesVisible Render vertices as points if true, otherwise not.
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65 */
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66 public HorizontalProfileChart(
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67 ChartLabels labels,
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68 ChartTheme theme,
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69 Collection parameters,
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70 Collection measurements,
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71 Collection dates,
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72 Collection result,
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73 Collection timeGaps,
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74 Locale locale,
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75 boolean linesVisible,
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76 boolean shapesVisible
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77 ) {
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78 super(
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79 labels,
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80 theme,
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81 parameters,
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82 measurements,
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83 dates,
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84 result,
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85 timeGaps,
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86 locale,
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87 linesVisible,
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88 shapesVisible
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89 );
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90 this.PLOT_ORIENTATION = PlotOrientation.VERTICAL;
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91 }
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92
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93
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94 /**
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95 * @see de.intevation.gnv.chart.VerticalProfileChart#getValue(Result)
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96 */
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97 @Override
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98 protected Object getValue(Result row) {
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99 try {
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100 return (Point) wktReader.read(row.getString("SHAPE"));
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101 }
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102 catch(ParseException pe) {
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103 log.warn("No data found while parsing.");
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104 return null;
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105 }
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106 }
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107
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108
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109 /**
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110 * @see de.intevation.gnv.chart.VerticalProfileChart#gapDetection(Result,
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111 * Series, int, int)
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112 */
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113 @Override
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114 protected void gapDetection(
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115 Result[] results,
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116 Series series,
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117 int startPos,
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118 int endPos
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119 ) {
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120 log.debug("Start gap detection.");
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121 try {
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122 Point startValue = getPoint(results[startPos]);
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123 Point endValue = getPoint(results[endPos-1]);
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124 if (results[0].getInteger("DATAID") == 2)
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125 addGapsOnGrid(results, series, startPos, endPos);
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126 else
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127 addGaps(
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128 results,
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129 series,
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130 startValue,
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131 endValue,
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132 startPos,
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133 endPos
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134 );
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135 }
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136 catch (ParseException pe) {
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137 log.warn(
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138 "Error while parsing points for gap detection. " +
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139 "No gaps for current series will be detected."
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140 );
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141 }
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142
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143 log.debug("Gap detection finished.");
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144 }
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145
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146
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147 /**
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148 * @see de.intevation.gnv.chart.AbstractXYLineChart(Result, Series)
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149 */
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150 @Override
298
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151 protected void addValue(Result row, Series series) {
644
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152 double distance = 0;
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153
298
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154 try {
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155 Point point = (Point) wktReader.read(row.getString("SHAPE"));
644
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156 if (firstPoint != null) {
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157 distance = DistanceCalculator.calculateDistance(
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158 firstPoint, point
298
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159 );
644
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160 }
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161 else {
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162 firstPoint = point;
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163 }
298
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164
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165 ((XYSeries) series).add(
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166 distance,
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167 row.getDouble("YORDINATE")
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168 );
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169 }
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170 catch(ParseException pe) {
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171 log.warn("No data found while parsing.");
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172 }
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173 }
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174
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175
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176
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177 /**
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178 * @see de.intevation.gnv.chart.AbstractXYLineChart#addSeries(Series,
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179 * String, int)
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180 */
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181 @Override
334
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182 protected void addSeries(Series series, String label, int idx) {
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183 super.addSeries(series, label, idx);
298
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184
644
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185 // reset firstPoint for next series
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186 firstPoint = null;
298
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187 }
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188
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189
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190 /**
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191 * @see de.intevation.gnv.chart.VerticalProfileChart#prepareRangeAxis(String,
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192 * int)
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193 */
656
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194 @Override
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195 protected void prepareRangeAxis(String seriesKey, int idx) {
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196 return;
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197 // do nothing here
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198 }
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199
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200
767
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201 /**
788
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202 * @param value
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203 * @see de.intevation.gnv.chart.VerticalProfileChart#storeMaxValue(Map,
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204 * Object, String)
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205 */
656
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206 @Override
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207 protected void storeMaxValue(Map values, Object value, String parameter) {
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208 return;
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209 // do nothing here
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210 }
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211
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212
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213 /**
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214 * @see de.intevation.gnv.chart.AbstractXYLineChart#createSeriesName(String,
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215 * String, String)
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216 */
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217 @Override
298
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218 protected String createSeriesName(
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219 String breakPoint1,
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220 String breakPoint2,
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221 String breakPoint3
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222 ) {
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223 log.debug("create seriesname of horizontalprofile chart");
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224 return super.createSeriesName(
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225 breakPoint1,
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226 breakPoint2,
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227 breakPoint3) +
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228 " " +
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229 findValueTitle(dates, breakPoint3);
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230 }
340
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231
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232
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233 /**
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234 * @see de.intevation.gnv.chart.VerticalProfileChart#addGapsOnGrid(Result[],
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235 * Series, int, int)
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236 */
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237 @Override
340
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238 protected void addGapsOnGrid(
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239 Result[] results,
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240 Series series,
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241 int startPos,
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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242 int endPos
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243 ) {
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244 String axis = getDependendAxisName(
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245 results[startPos],
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246 results[startPos+1]
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247 );
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248
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249 int last = 0;
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250 int current = 0;
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251 Point lastPoint = null;
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252 Point currentPoint = null;
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253
644
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254 try {
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255 firstPoint = getPoint(results[0]);
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256 }
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257 catch (ParseException pe) {
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258 log.error("Unable to parse start point for gap detection.");
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259 return;
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260 }
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261
340
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262 for (int i = startPos+1; i < endPos; i++) {
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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263 try {
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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264 last = results[i-1].getInteger(axis);
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265 lastPoint = getPoint(results[i-1]);
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266 current = results[i].getInteger(axis);
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267 currentPoint = getPoint(results[i]);
644
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268 double distance = DistanceCalculator.calculateDistance(
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269 firstPoint,
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270 currentPoint);
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271 double distanceOld = DistanceCalculator.calculateDistance(
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272 firstPoint,
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273 lastPoint);
340
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274
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275 boolean detected = gridDetection(last, current);
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276
643
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277 if (log.isDebugEnabled()) {
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278 log.debug("Last point: " + lastPoint.toString());
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279 log.debug("Current point: " + currentPoint.toString());
644
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280 log.debug("Current distance from start: " + distance);
643
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281 }
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282
340
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283 if (detected) {
643
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284 log.info(
644
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285 "Gap detected on grid between " + distanceOld +
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286 " and " + distance);
340
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287
644
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288 ((XYSeries) series).add(distance-1d, null);
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289 ((XYSeries) series).add(distanceOld+1d, null);
340
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290 }
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291 }
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292 catch (ParseException pe) {
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293 log.warn("Error while parsing point for gap detection.", pe);
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294 }
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295 }
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diff changeset
296 }
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diff changeset
297
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298
767
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299 /**
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300 * Method to add gaps between two data points. The real detection is done by
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301 * {@link #simpleDetection} and {@link #specialDetection}.
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302 *
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303 * @param results All data points in this dataset.
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304 * @param series Series to be processed.
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305 * @param startValue <code>Point</code> where the scan for gaps should begin.
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306 * @param endValue <code>Point</code> where the scan should end.
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307 * @param startPos Start position of this series in <code>results</code>.
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308 * @param endPos End position of a series in <code>results</code>
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309 */
340
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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310 protected void addGaps(
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311 Result[] results,
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diff changeset
312 Series series,
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diff changeset
313 Point startValue,
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
314 Point endValue,
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
315 int startPos,
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
316 int endPos
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
317 ) {
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
318 double range = 0;
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
319 Point last = null;
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
320 Point now = null;
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
321
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
322 for (int i = startPos+1; i < endPos; i++) {
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
323 boolean detected = false;
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
324
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 334
diff changeset
325 try {
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
326 last = (Point) getPoint(results[i-1]);
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diff changeset
327 now = (Point) getPoint(results[i]);
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parents: 334
diff changeset
328
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
329 // gap detection for more than GAP_MAX_VALUES values
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parents: 334
diff changeset
330 if (results.length > GAP_MAX_VALUES)
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
331 detected = simpleDetection(startValue, endValue, last, now);
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parents: 334
diff changeset
332 // gap detection for less than GAP_MAX_VALUES values
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 334
diff changeset
333 else
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
334 detected = specialDetection(
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
335 startValue,
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
336 endValue,
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
337 last,
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
338 now,
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
339 results.length
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 334
diff changeset
340 );
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 334
diff changeset
341
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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diff changeset
342 // gap detected, insert null value to break line
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
343 if (detected) {
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
344 log.info("Gap after " + range);
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
345 double x = range + 0.0001;
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
346
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
347 ((XYSeries)series).add(x, null);
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
348 }
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 334
diff changeset
349
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
350 range += DistanceCalculator.calculateDistance(last,now);
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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parents: 334
diff changeset
351 }
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 334
diff changeset
352 catch (ParseException pe) {
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
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diff changeset
353 log.warn("Error while parsing point.");
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parents: 334
diff changeset
354 }
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 334
diff changeset
355
07a64cfafdf1 Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 334
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356 }
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357 }
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358
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359
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360 /**
778
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361 * Simple method to detect gaps. A gap is detected if the delta between two
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362 * data points (current, last) is bigger than <code>PERCENTAGE</code> percent
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363 * of delta of start and end.
767
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364 * <br>
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365 * (smallDelta &gt; delta / 100 * PERCENTAGE)
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366 *
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367 * @param start First data point in a series
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368 * @param end Last data point in a series
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369 * @param last Left point
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370 * @param current Right point
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371 *
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372 * @return true, if a gap is detected between last and current - otherwise
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373 * false.
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374 */
340
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375 protected boolean simpleDetection(
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376 Point start,
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377 Point end,
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378 Point last,
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379 Point current
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380 ) {
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381 double delta = DistanceCalculator.calculateDistance(start, end);
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382 double deltaSmall = DistanceCalculator.calculateDistance(last,current);
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383
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384 return (deltaSmall > (delta / 100 * PERCENTAGE));
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385 }
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386
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387
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388 /**
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389 * Method to detect gaps between two data points. Following formula is used
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390 * for detection:<br>
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391 * smallDelta &gt; (3.0 / (count - 1) * delta)<br>
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392 * smallDelta = distance between <code>current</code> and <code>last</code>
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393 * <br>
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394 * delta = distance between <code>start</code> and <code>end</code>
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395 *
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396 * @param start First data point in a series
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397 * @param end Last data point in a series
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398 * @param last Left point
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399 * @param current Right point
788
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400 * @param count Number of datapoints
767
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401 * @return true, if a gap is detected between last and current - otherwise
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402 * false.
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403 */
340
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404 protected boolean specialDetection(
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405 Point start,
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406 Point end,
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407 Point last,
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408 Point current,
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409 int count
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410 ) {
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411 double delta = Math.abs(
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412 DistanceCalculator.calculateDistance(end, start)
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413 );
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414 double smallDelta = Math.abs(
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415 DistanceCalculator.calculateDistance(current, last)
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416 );
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417
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418 return (smallDelta > (3.0 / (count - 1) * delta));
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419 }
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420
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421 /**
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422 * @see de.intevation.gnv.chart.VerticalProfileChart#getDependendAxisName(Result,
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423 * Result)
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424 */
370
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425 @Override
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426 protected String getDependendAxisName(Result first, Result second) {
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427 if (first.getInteger("IPOSITION") == second.getInteger("IPOSITION"))
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428 return "JPOSITION";
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429
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430 return "IPOSITION";
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431 }
340
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432
767
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433 /**
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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434 * This method returns a point from a given wkt string stored in
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435 * <code>result</code>.
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436 *
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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437 * @param result <code>Result</code> object which contains the wkt string.
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438 * The wkt string needs to be available under the key SHAPE.
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 656
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439 *
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 656
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440 * @return Point representation of wkt string.
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 656
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441 */
340
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442 private Point getPoint(Result result)
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443 throws ParseException
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444 {
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445 return (Point) wktReader.read(result.getString("SHAPE"));
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446 }
298
80f7c5dc09c6 Implementation of classes for creating timeseries, verticalprofile and horizontalprofile charts.
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parents:
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447 }
327
22a6493e8460 New options in chart template: visibility of lines and points in charts and point's size.
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448 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org