Mercurial > dive4elements > gnv-client
annotate gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonSeries.java @ 804:9058c08eac3a
Added more Javadoc in some classes of state.profile.
gnv-artifacts/trunk@886 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Thu, 08 Apr 2010 10:10:04 +0000 |
parents | cdade5005cba |
children | 22c18083225e |
rev | line source |
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1 package de.intevation.gnv.jfreechart; |
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2 |
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3 import java.util.HashMap; |
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4 import java.util.Map; |
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5 |
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6 import org.jfree.data.Range; |
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7 |
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8 import org.jfree.data.general.Series; |
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9 |
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10 /** |
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11 * This class represents a series of polygon items. |
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12 * |
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13 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha Teichmann</a> |
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14 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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15 */ |
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16 public class PolygonSeries |
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17 extends Series |
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18 { |
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19 /** |
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20 * Polygons. |
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21 */ |
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22 protected CompactXYItems [] rings; |
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23 |
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24 /** |
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25 * A map containing attribues. |
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26 */ |
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27 protected Map attributes; |
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28 |
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29 /** |
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30 * The unique key of this series. |
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31 */ |
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32 private static long uniqueKey; |
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33 |
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34 /** |
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35 * |
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36 * @return a unique key. |
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37 */ |
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38 protected synchronized static Long createUniqueKey() { |
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39 return new Long(uniqueKey++); |
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40 } |
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41 |
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42 /** |
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43 * Constructor to create an empty PolygonSeries with a unique key. |
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44 */ |
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45 public PolygonSeries() { |
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46 this(createUniqueKey(), null); |
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47 } |
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48 |
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49 /** |
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50 * |
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51 * @param key The key used for this series. |
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52 * @param rings Polygons. |
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53 */ |
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54 public PolygonSeries(Comparable key, CompactXYItems [] rings) { |
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55 this(key, null, rings, new HashMap()); |
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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 * @param key The key used for this series. |
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61 * @param description A description of this series. |
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62 * @param rings Polygons. |
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63 */ |
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64 public PolygonSeries( |
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65 Comparable key, |
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66 String description, |
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67 CompactXYItems[] rings |
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68 ) { |
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69 this(key, description, rings, new HashMap()); |
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70 } |
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71 |
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72 /** |
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73 * |
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74 * @param key The key used for this series. |
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75 * @param description A description of this series. |
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76 * @param rings Polygons. |
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77 * @param attributes Some attribues. |
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78 */ |
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79 public PolygonSeries( |
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80 Comparable key, |
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81 String description, |
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82 CompactXYItems [] rings, |
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83 Map attributes |
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84 ) { |
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85 super(key, description); |
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86 this.rings = rings; |
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87 this.attributes = attributes; |
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88 } |
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89 |
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90 |
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91 /** |
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92 * |
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93 * @param rings |
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94 */ |
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95 public void setRings(CompactXYItems [] rings) { |
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96 this.rings = rings; |
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97 } |
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98 |
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99 /** |
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100 * |
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101 * @return |
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102 */ |
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103 public CompactXYItems [] getRings() { |
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104 return rings; |
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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 * @param newRing |
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110 */ |
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111 public void addRing(CompactXYItems newRing) { |
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112 if (rings == null) { |
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113 rings = new CompactXYItems [] { newRing }; |
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114 } |
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115 else { |
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116 CompactXYItems [] nRings = new CompactXYItems[rings.length + 1]; |
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117 System.arraycopy(rings, 0, nRings, 0, rings.length); |
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118 nRings[rings.length] = newRing; |
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119 rings = nRings; |
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120 } |
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121 } |
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122 |
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123 /** |
cdade5005cba
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124 * |
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125 * @param newRings |
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126 */ |
422
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127 public void addRings(CompactXYItems [] newRings) { |
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128 if (newRings == null || newRings.length == 0) { |
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129 return; |
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130 } |
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131 if (rings == null || rings.length == 0) { |
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132 rings = newRings; |
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133 } |
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134 else { |
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135 CompactXYItems [] both = |
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136 new CompactXYItems[rings.length + newRings.length]; |
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137 System.arraycopy(rings, 0, both, 0, rings.length); |
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138 System.arraycopy(newRings, 0, both, rings.length, newRings.length); |
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139 rings = both; |
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140 } |
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141 } |
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142 |
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143 /** |
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144 * |
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145 * @param key |
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146 * @return |
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147 */ |
422
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148 public Object getAttribute(Object key) { |
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149 return attributes.get(key); |
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150 } |
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151 |
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152 |
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153 /** |
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154 * |
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155 * @param key |
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156 * @param value |
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157 * @return |
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158 */ |
422
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159 public Object setAttribute(Object key, Object value) { |
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160 return attributes.put(key, value); |
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161 } |
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162 |
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163 |
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164 /** |
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165 * |
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166 * @return |
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167 */ |
422
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168 public int getItemCount() { |
447
92b7ccbf6163
Improved generation of iso lines in vertical cross section.
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169 return rings != null ? rings.length : 0; |
422
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170 } |
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171 |
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172 |
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173 /** |
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174 * |
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175 * @param idx |
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176 * @return |
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177 */ |
422
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178 public CompactXYItems getItem(int idx) { |
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179 return rings[idx]; |
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180 } |
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181 |
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182 |
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183 /** |
cdade5005cba
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184 * |
cdade5005cba
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185 * @param key |
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186 * @return |
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187 */ |
422
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188 public Object removeAttribute(Object key) { |
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189 return attributes.remove(key); |
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190 } |
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191 |
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192 |
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193 /** |
cdade5005cba
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194 * |
cdade5005cba
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195 * @param key |
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196 * @return |
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197 */ |
422
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198 public boolean hasAttribute(Object key) { |
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199 return attributes.containsKey(key); |
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200 } |
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201 |
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202 |
795
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|
203 /** |
cdade5005cba
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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204 * |
cdade5005cba
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205 * @return the range of the x axis. |
cdade5005cba
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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|
206 */ |
422
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207 public Range getDomainBounds() { |
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208 double upper = Double.NEGATIVE_INFINITY; |
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209 double lower = Double.POSITIVE_INFINITY; |
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210 int count = getItemCount(); |
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211 |
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212 for (int i = 0; i < count; i++) { |
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213 CompactXYItems items = getItem(i); |
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214 double minX = items.getMinX(); |
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215 double maxX = items.getMaxX(); |
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216 |
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217 if (!Double.isNaN(minX)) { |
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218 lower = Math.min(lower, minX); |
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219 } |
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220 |
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221 if (!Double.isNaN(maxX)) { |
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222 upper = Math.max(upper, maxX); |
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223 } |
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224 } |
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225 |
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226 if (lower > upper) { |
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227 return null; |
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228 } |
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229 |
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230 return new Range(lower, upper); |
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231 } |
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232 |
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233 |
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234 /** |
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235 * |
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236 * @return the range of the y axis. |
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237 */ |
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238 public Range getRangeBounds() { |
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239 double upper = Double.NEGATIVE_INFINITY; |
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240 double lower = Double.POSITIVE_INFINITY; |
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241 int count = getItemCount(); |
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242 |
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243 for (int i = 0; i < count; i++) { |
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244 CompactXYItems items = getItem(i); |
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245 double minY = items.getMinY(); |
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246 double maxY = items.getMaxY(); |
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247 |
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248 if (!Double.isNaN(minY)) { |
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249 lower = Math.min(lower, minY); |
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250 } |
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251 |
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252 if (!Double.isNaN(maxY)) { |
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253 upper = Math.max(upper, maxY); |
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254 } |
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255 } |
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256 |
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257 if (lower > upper) { |
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258 return null; |
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259 } |
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260 |
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261 return new Range(lower, upper); |
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262 } |
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263 } |
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264 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |