Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/exports/StyledSeriesBuilder.java @ 5017:51a353887871
Tiny doc.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Tue, 19 Feb 2013 11:23:57 +0100 |
parents | 919d4939ebe6 |
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rev | line source |
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Added new StyledSeriesBuilder class and use it when adding points to XYSeries (in diagram generation).
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1 package de.intevation.flys.exports; |
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2 |
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3 import org.apache.log4j.Logger; |
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4 |
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5 import org.jfree.data.xy.XYSeries; |
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6 |
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FLYS artifacts: Removed trailing whitespace.
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7 import de.intevation.flys.artifacts.model.WKms; |
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8 import de.intevation.flys.artifacts.model.WQKms; |
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9 import de.intevation.flys.artifacts.model.WWQQ; |
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10 |
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11 /** |
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12 * Helper to create and modify StyledXYSeries. |
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13 */ |
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14 public class StyledSeriesBuilder { |
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15 |
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16 /** |
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17 * JFreeChart and the area calculation will fail if we use Double.INFINITY |
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18 * or Double.MAX_VALUE (probably because these are really used in |
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19 * calculations). We define and use a more handy value instead. |
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20 */ |
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21 final static double BIG_DOUBLE_VALUE = 1234567d; |
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22 |
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23 private static final Logger logger = Logger.getLogger |
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24 (StyledSeriesBuilder.class); |
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25 |
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26 |
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27 /** |
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28 * Trivial, hidden constructor. |
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29 */ |
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30 private StyledSeriesBuilder() { |
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31 } |
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32 |
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33 |
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34 /** |
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35 * Add points to series. |
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36 * |
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37 * @param series Series to add points to. |
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38 * @param points Points to add to series, points[0] to 1st dim, points[1] |
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39 * to 2nd dim. |
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40 * @param skipNANs if true, skip NAN values in points parameter. |
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41 */ |
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42 public static void addPoints(XYSeries series, double[][] points, boolean skipNANs) { |
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43 if (points == null || points.length <= 1) { |
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44 return; |
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45 } |
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46 double [] xPoints = points[0]; |
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47 double [] yPoints = points[1]; |
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48 for (int i = 0; i < xPoints.length; i++) { |
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49 if (skipNANs && |
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50 (Double.isNaN(xPoints[i]) || Double.isNaN(yPoints[i]))) { |
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51 logger.warn ("Skipping NaN in StyledSeriesBuilder."); |
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52 continue; |
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53 } |
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54 series.add(xPoints[i], yPoints[i], false); |
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55 } |
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56 } |
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57 |
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58 |
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59 /** |
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60 * Add points to series (km to 1st dim, w to 2nd dim). |
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61 * |
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62 * @param series Series to add points to. |
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63 * @param wkms WKms to add to series. |
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64 */ |
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65 public static void addPoints(XYSeries series, WKms wkms) { |
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66 if (wkms == null) { |
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67 return; |
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68 } |
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69 |
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70 int size = wkms.size(); |
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71 |
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72 for (int i = 0; i < size; i++) { |
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73 series.add(wkms.getKm(i), wkms.getW(i), false); |
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74 } |
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75 } |
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76 |
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77 |
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78 /** |
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79 * Add points to dataset with an offset (shift all points by given amount). |
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80 * @param series series to add data to. |
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81 * @param wkms WKms of which the Ws will be shifted. |
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82 * @param off the offset. |
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83 */ |
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84 public static void addUpperBand(XYSeries series, WKms wkms, double off) { |
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85 if (wkms == null) { |
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86 return; |
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87 } |
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88 |
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89 int size = wkms.size(); |
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90 |
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91 for (int i = 0; i < size; i++) { |
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92 series.add(wkms.getKm(i), wkms.getW(i)+off, false); |
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93 } |
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94 } |
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95 |
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96 |
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97 /** |
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98 * Add points to dataset with an offset (shift all points 'down' by given |
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99 * amount). |
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100 * @param series series to add data to. |
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101 * @param wkms WKms of which the Ws will be shifted. |
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102 * @param off the offset. |
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103 */ |
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104 public static void addLowerBand(XYSeries series, WKms wkms, double off) { |
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105 addUpperBand(series, wkms, -off); |
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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 * Add points to series (km to 1st dim, q to 2nd dim). |
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111 * |
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112 * @param series Series to add points to. |
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113 * @param wqkms WQKms to add to series. |
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114 */ |
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115 public static void addPointsKmQ(XYSeries series, WQKms wqkms) { |
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116 if (wqkms == null) { |
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117 return; |
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118 } |
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119 |
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120 int size = wqkms.size(); |
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121 |
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122 for (int i = 0; i < size; i++) { |
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123 series.add(wqkms.getKm(i), wqkms.getQ(i), false); |
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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 * Add points to series (km to 1st dim, q to 2nd dim), adding points |
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130 * to achieve a step-like curve. |
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131 * |
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132 * @param series Series to add points to. |
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133 * @param wqkms WQKms to add to series. |
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134 */ |
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135 public static void addStepPointsKmQ(XYSeries series, WQKms wqkms) { |
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136 if (wqkms == null) { |
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137 return; |
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138 } |
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139 |
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140 int size = wqkms.size(); |
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141 |
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142 for (int i = 0; i < size; i++) { |
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143 if (i==0) { |
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144 series.add(wqkms.getKm(i), wqkms.getQ(i), false); |
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145 } |
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146 else { |
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147 //Add two points. |
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148 double halveX = (wqkms.getKm(i-1) + wqkms.getKm(i)) / 2d; |
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149 series.add(halveX, wqkms.getQ(i-1), false); |
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150 series.add(halveX, wqkms.getQ(i), false); |
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151 } |
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152 if (i == size-1) { |
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153 series.add(wqkms.getKm(i), wqkms.getQ(i), false); |
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154 } |
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155 } |
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156 } |
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157 |
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158 |
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159 /** |
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160 * Add points to series (q to 1st dim, w to 2nd dim). |
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161 * |
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162 * @param series Series to add points to. |
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163 * @param wqkms WQKms to add to series. |
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164 */ |
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165 public static void addPointsQW(XYSeries series, WQKms wqkms) { |
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166 if (wqkms == null) { |
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167 return; |
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168 } |
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169 |
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170 int size = wqkms.size(); |
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171 |
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172 for (int i = 0; i < size; i++) { |
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173 series.add(wqkms.getQ(i), wqkms.getW(i), false); |
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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 /** |
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179 * Add points to series (q to 1st dim, w to 2nd dim). |
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180 * |
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181 * @param series Series to add points to. |
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182 * @param qs the Qs to add, assumed same length than ws. |
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183 * @param ws the Ws to add, assumed same length than qs. |
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184 */ |
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185 public static void addPointsQW(XYSeries series, double[] qs, double ws[]) { |
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186 if (ws == null || qs == null) { |
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187 return; |
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188 } |
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189 |
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190 int size = qs.length; |
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191 |
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192 for (int i = 0; i < size; i++) { |
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193 series.add(qs[i], ws[i], false); |
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194 } |
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195 } |
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196 |
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197 |
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198 /** |
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199 * Add points to series (q to 1st dim, w to 2nd dim). |
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200 * |
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201 * @param series Series to add points to. |
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202 * @param wwqq WWQQ to add to series. |
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203 */ |
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204 public static void addPoints(XYSeries series, WWQQ wwqq) { |
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205 if (wwqq == null) { |
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206 return; |
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207 } |
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208 |
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209 int size = wwqq.size(); |
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210 |
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211 for (int i = 0; i < size; i++) { |
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212 series.add(wwqq.getW1(i), wwqq.getW2(i), false); |
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213 } |
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214 } |
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215 |
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216 |
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217 /** |
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218 * Create a Series such that an infinitely big area can be filled |
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219 * between the newly created and the given series. |
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220 */ |
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221 public static XYSeries createGroundAtInfinity(XYSeries series) { |
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222 XYSeries ground = new XYSeries(series.getKey() + /** TODO rand + */ "INF"); |
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223 ground.add(series.getMinX(), -BIG_DOUBLE_VALUE); |
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224 ground.add(series.getMaxX(), -BIG_DOUBLE_VALUE); |
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225 return ground; |
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226 } |
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227 |
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228 |
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229 /** |
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230 * Create a Series such that an infinitely big area can be filled |
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231 * between the newly created and the given series. |
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232 */ |
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233 public static XYSeries createCeilingAtInfinity(XYSeries series) { |
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234 XYSeries ground = new XYSeries(series.getKey() + /** TODO rand + */ "INF"); |
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235 ground.add(series.getMinX(), BIG_DOUBLE_VALUE); |
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236 ground.add(series.getMaxX(), BIG_DOUBLE_VALUE); |
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237 return ground; |
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238 } |
1791
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239 } |
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240 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |