1 | /* |
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2 | * $Id: TransformColorMap.java,v 1.6 2002/06/12 18:47:26 dwd Exp $ |
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3 | * |
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4 | * This software is provided by NOAA for full, free and open release. It is |
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5 | * understood by the recipient/user that NOAA assumes no liability for any |
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6 | * errors contained in the code. Although this software is released without |
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7 | * conditions or restrictions in its use, it is expected that appropriate |
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8 | * credit be given to its author and to the National Oceanic and Atmospheric |
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9 | * Administration should the software be included by the recipient as an |
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10 | * element in other product development. |
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11 | */ |
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12 | package gov.noaa.pmel.sgt; |
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13 | |
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14 | import gov.noaa.pmel.util.Range2D; |
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15 | import gov.noaa.pmel.util.Debug; |
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16 | |
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17 | import java.awt.*; |
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18 | import java.beans.PropertyChangeListener; |
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19 | import java.beans.PropertyChangeSupport; |
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20 | import java.beans.PropertyChangeEvent; |
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21 | |
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22 | /** |
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23 | * <code>TransformColorMap</code> provides a mapping from a value |
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24 | * to a <code>Color</code>. |
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25 | * |
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26 | * @author Donald Denbo |
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27 | * @version $Revision: 1.6 $, $Date: 2002/06/12 18:47:26 $ |
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28 | * @since 2.0 |
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29 | */ |
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30 | public class TransformColorMap extends ColorMap |
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31 | implements Cloneable, PropertyChangeListener, |
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32 | TransformColor, TransformAccess { |
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33 | /** |
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34 | * Red Transform |
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35 | |
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36 | * @supplierCardinality 0..1 |
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37 | * @clientRole rTrans_ |
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38 | * @link aggregationByValue |
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39 | */ |
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40 | private Transform rTrans_ = null; |
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41 | /** |
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42 | * Green Transform |
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43 | |
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44 | * @supplierCardinality 0..1 |
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45 | * @clientRole gTrans_ |
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46 | * @link aggregationByValue |
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47 | */ |
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48 | private Transform gTrans_ = null; |
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49 | /** |
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50 | * Blue Transform |
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51 | |
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52 | * @supplierCardinality 0..1 |
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53 | * @clientRole bTrans_ |
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54 | * @link aggregationByValue |
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55 | */ |
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56 | private Transform bTrans_ = null; |
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57 | /** |
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58 | * Initialize the color map to use red, green, and blue transforms. Sets up |
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59 | * <code>ColorMap</code> for <code>TRANSFORM</code> access. |
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60 | * Each <code>Transform</code> should have identical user |
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61 | * ranges. The physical range will be set to 0.0 to 1.0 for each |
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62 | * color component. |
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63 | * |
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64 | * @see Transform |
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65 | */ |
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66 | public TransformColorMap(Transform rTrans,Transform gTrans,Transform bTrans) { |
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67 | rTrans_ = rTrans; |
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68 | rTrans_.setRangeP(0.0, 1.0); |
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69 | gTrans_ = gTrans; |
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70 | gTrans_.setRangeP(0.0, 1.0); |
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71 | bTrans_ = bTrans; |
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72 | bTrans_.setRangeP(0.0, 1.0); |
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73 | } |
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74 | /** |
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75 | * Create a copy of the <code>ColorMap</code> object. |
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76 | */ |
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77 | public ColorMap copy() { |
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78 | ColorMap newMap; |
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79 | try { |
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80 | newMap = (ColorMap)clone(); |
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81 | } catch (CloneNotSupportedException e) { |
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82 | newMap = null; |
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83 | } |
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84 | return newMap; |
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85 | } |
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86 | /** |
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87 | * Get a <code>Color</code>. Returns a <code>Color</code> by |
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88 | * one of four methods. <code>INDEXED</code>, <code>TRANSFORM</code>, |
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89 | * <code>LEVEL_INDEXED</code>, and <code>LEVEL_TRANSFORM</code>. |
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90 | * |
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91 | * @param val Value |
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92 | * @return Color |
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93 | * |
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94 | */ |
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95 | public Color getColor(double val) { |
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96 | double ival = val; |
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97 | float red = (float)rTrans_.getTransP(ival); |
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98 | float green = (float)gTrans_.getTransP(ival); |
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99 | float blue = (float)bTrans_.getTransP(ival); |
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100 | return new Color(red, green, blue); |
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101 | } |
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102 | /** |
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103 | * Set the user range for all the <code>Transform</codes>s. |
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104 | * |
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105 | */ |
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106 | public void setRange(Range2D range) { |
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107 | rTrans_.setRangeU(range); |
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108 | gTrans_.setRangeU(range); |
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109 | bTrans_.setRangeU(range); |
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110 | } |
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111 | /** |
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112 | * Get the current user range for the <code>Transform</code>s. |
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113 | * |
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114 | * @return user range |
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115 | */ |
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116 | public Range2D getRange() { |
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117 | return rTrans_.getRangeU(); |
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118 | } |
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119 | /** |
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120 | * Set the color <code>Transform</code>s. |
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121 | * <BR><B>Property Change:</B> <code>redColorTransform</code>, |
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122 | * <code>greenColorTransform</code>, and |
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123 | * <code>blueColorTransform</code>. |
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124 | * |
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125 | * @param rTrans red <code>Transform</code> |
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126 | * @param gTrans green <code>Transform</code> |
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127 | * @param bTrans blue <code>Transform</code> |
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128 | */ |
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129 | public void setColorTransforms(Transform rTrans, |
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130 | Transform gTrans, |
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131 | Transform bTrans) { |
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132 | if(!rTrans_.equals(rTrans) || |
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133 | !gTrans_.equals(gTrans) || |
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134 | !bTrans_.equals(bTrans)) { |
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135 | if(rTrans_ != null) rTrans_.removePropertyChangeListener(this); |
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136 | if(gTrans_ != null) gTrans_.removePropertyChangeListener(this); |
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137 | if(bTrans_ != null) bTrans_.removePropertyChangeListener(this); |
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138 | |
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139 | Transform tempOld = rTrans_; |
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140 | rTrans_ = rTrans; |
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141 | rTrans_.setRangeP(0.0, 1.0); |
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142 | firePropertyChange("redColorTransform", |
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143 | tempOld, |
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144 | rTrans_); |
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145 | tempOld = gTrans_; |
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146 | gTrans_ = gTrans; |
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147 | gTrans_.setRangeP(0.0, 1.0); |
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148 | firePropertyChange("greenColorTransform", |
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149 | tempOld, |
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150 | gTrans_); |
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151 | tempOld = bTrans_; |
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152 | bTrans_ = bTrans; |
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153 | bTrans_.setRangeP(0.0, 1.0); |
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154 | firePropertyChange("blueColorTransform", |
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155 | tempOld, |
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156 | bTrans_); |
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157 | |
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158 | rTrans_.addPropertyChangeListener(this); |
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159 | gTrans_.addPropertyChangeListener(this); |
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160 | bTrans_.addPropertyChangeListener(this); |
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161 | } |
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162 | } |
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163 | /** |
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164 | * Set the red color <code>Transform</code> |
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165 | */ |
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166 | public void setRedTransform(Transform red) { |
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167 | rTrans_ = red; |
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168 | } |
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169 | /** |
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170 | * Get the red color <code>Transform</code>. |
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171 | * |
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172 | * @return red <code>Transform</code> |
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173 | */ |
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174 | public Transform getRedTransform() { |
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175 | return rTrans_; |
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176 | } |
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177 | /** |
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178 | * Set the green color <code>Transform</code> |
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179 | */ |
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180 | public void setGreenTransform(Transform green) { |
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181 | gTrans_ = green; |
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182 | } |
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183 | /** |
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184 | * Get the green color <code>Transform</code>. |
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185 | * |
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186 | * @return green <code>Transform</code> |
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187 | */ |
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188 | public Transform getGreenTransform() { |
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189 | return gTrans_; |
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190 | } |
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191 | /** |
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192 | * Set the blue color <code>Transform</code> |
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193 | */ |
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194 | public void setBlueTransform(Transform blue) { |
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195 | bTrans_ = blue; |
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196 | } |
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197 | /** |
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198 | * Get the blue color <code>Transform</code>. |
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199 | * |
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200 | * @return blue <code>Transform</code> |
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201 | */ |
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202 | public Transform getBlueTransform() { |
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203 | return bTrans_; |
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204 | } |
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205 | |
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206 | public boolean equals(ColorMap cm) { |
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207 | if(cm == null || !(cm instanceof TransformColorMap)) return false; |
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208 | if(!(rTrans_.equals(((TransformColorMap)cm).rTrans_) && |
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209 | gTrans_.equals(((TransformColorMap)cm).gTrans_) && |
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210 | bTrans_.equals(((TransformColorMap)cm).bTrans_))) return false; |
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211 | return true; |
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212 | } |
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213 | } |
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