Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonSeries.java @ 808:2e951160c43d

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Finished the javadoc of the math package. gnv-artifacts/trunk@890 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Thu, 08 Apr 2010 16:35:02 +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 /**
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124 *
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125 * @param newRings
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126 */
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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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parents:
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134 else {
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parents:
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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);
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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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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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
141 }
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142
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143 /**
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
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144 *
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
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145 * @param key
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parents: 780
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146 * @return
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
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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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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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151
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parents:
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152
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153 /**
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
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154 *
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
155 * @param key
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parents: 780
diff changeset
156 * @param value
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157 * @return
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
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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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parents:
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161 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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162
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parents:
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163
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164 /**
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
165 *
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
166 * @return
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
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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parents: 436
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169 return rings != null ? rings.length : 0;
422
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170 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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171
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172
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173 /**
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
174 *
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
175 * @param idx
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parents: 780
diff changeset
176 * @return
cdade5005cba Added javadoc in jfreechart package.
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parents: 780
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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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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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181
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182
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diff changeset
183 /**
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
184 *
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
185 * @param key
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parents: 780
diff changeset
186 * @return
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
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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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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
191
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parents:
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192
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193 /**
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
194 *
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
195 * @param key
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parents: 780
diff changeset
196 * @return
cdade5005cba Added javadoc in jfreechart package.
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parents: 780
diff changeset
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 }
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
201
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parents:
diff changeset
202
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diff changeset
203 /**
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
204 *
cdade5005cba Added javadoc in jfreechart package.
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parents: 780
diff changeset
205 * @return the range of the x axis.
cdade5005cba Added javadoc in jfreechart package.
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parents: 780
diff changeset
206 */
422
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207 public Range getDomainBounds() {
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208 double upper = Double.NEGATIVE_INFINITY;
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diff changeset
209 double lower = Double.POSITIVE_INFINITY;
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diff changeset
210 int count = getItemCount();
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211
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
212 for (int i = 0; i < count; i++) {
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parents:
diff changeset
213 CompactXYItems items = getItem(i);
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parents:
diff changeset
214 double minX = items.getMinX();
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parents:
diff changeset
215 double maxX = items.getMaxX();
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216
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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parents:
diff changeset
217 if (!Double.isNaN(minX)) {
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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218 lower = Math.min(lower, minX);
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parents:
diff changeset
219 }
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
220
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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parents:
diff changeset
221 if (!Double.isNaN(maxX)) {
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222 upper = Math.max(upper, maxX);
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parents:
diff changeset
223 }
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
224 }
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
225
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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parents:
diff changeset
226 if (lower > upper) {
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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diff changeset
227 return null;
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
228 }
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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parents:
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229
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diff changeset
230 return new Range(lower, upper);
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
231 }
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
232
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
233
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diff changeset
234 /**
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
235 *
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
236 * @return the range of the y axis.
cdade5005cba Added javadoc in jfreechart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
237 */
422
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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parents:
diff changeset
238 public Range getRangeBounds() {
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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parents:
diff changeset
239 double upper = Double.NEGATIVE_INFINITY;
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parents:
diff changeset
240 double lower = Double.POSITIVE_INFINITY;
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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parents:
diff changeset
241 int count = getItemCount();
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
242
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
243 for (int i = 0; i < count; i++) {
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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parents:
diff changeset
244 CompactXYItems items = getItem(i);
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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parents:
diff changeset
245 double minY = items.getMinY();
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parents:
diff changeset
246 double maxY = items.getMaxY();
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parents:
diff changeset
247
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
248 if (!Double.isNaN(minY)) {
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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parents:
diff changeset
249 lower = Math.min(lower, minY);
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
250 }
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
251
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
252 if (!Double.isNaN(maxY)) {
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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parents:
diff changeset
253 upper = Math.max(upper, maxY);
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
254 }
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
255 }
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
256
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
257 if (lower > upper) {
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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258 return null;
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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259 }
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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260
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
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parents:
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261 return new Range(lower, upper);
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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262 }
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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263 }
f426f55d4f7a Added Ingo Weinzierl's special JFreeChart classes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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264 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org