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74&lt;&lt; prev file | <a href="colorbar.html">next file &gt;&gt;</a>&nbsp;&nbsp;&nbsp;&nbsp;<a href="color24.html" target="_TOP">view single page</a> | <a href="./../index.html" target="_TOP">view frames</a>&nbsp;&nbsp;&nbsp;&nbsp;summary: fields | routine&nbsp;&nbsp;&nbsp;&nbsp;details: <a href="#routine_details">routine</a>
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81      <h1 class="directory"><a href="directory-overview.html">Colors/</a></h1>
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90 The purpose of this function is to convert a RGB color triple
91 into the equivalent 24-big long integer.
92 This routine was written to be used with routines like
93 or <a href="..//Colors/getcolor.html">getcolor</a>.
94</div>
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104      <div id="routine_details">
105       
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107        <div class="routine_details" id="_color24">
108
109          <h2><a class="top" href="#container">top</a>color24 <span class="categories">
110 Graphics, Color
111</span></h2>
112       
113          <p class="header">
114            <span class="result">result = </span>color24(<span class="result"><a href="#_color24_param_rgb_triple">rgb_triple</a></span>)</p>
115       
116          <div class="comments">
117</div>
118
119          <h3>Return value</h3><div class="preformat"> {type=long integer}
120 a 24-bit long integer that is equivalent the input color.
121 The color is described in terms of a hexadecimal number (e.g., FF206A)
122 where the left two digits represent the blue color, the
123 middle two digits represent the green color, and the right
124 two digits represent the red color.
125</div>
126
127         
128            <h3>Parameters</h3>
129       
130           
131            <h4 id="_color24_param_rgb_triple">rgb_triple&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
132              <span class="attr">in</span>
133             
134             
135              <span class="attr">required</span>
136             
137              <span class="attr">type:</span> <span class="value">byte, A three-element array</span>
138             
139             
140            </h4>
141       
142          <div class="comments">
143 A color triple. The values of the elements must be between 0 and 255.
144</div>
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151          <h3>Examples</h3><div class="preformat">
152 To convert the color triple for the color YELLOW,
153 (255, 255, 0), to the hexadecimal value '00FFFF'x
154 or the decimal number 65535, type:
155
156   IDL> color = COLOR24([255, 255, 0])
157</div>
158          <h3>Version history</h3>
159         
160          <h4>Version</h4><div class="preformat">
161 $Id: color24.pro 371 2008-08-07 09:32:02Z pinsard $
162</div>
163          <h4>History</h4><div class="preformat">
164       Written by:     David Fanning, 3 February 96.
165</div>
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181       
182          <h3>Statistics</h3>
183          <table class="statistics">
184            <tr><td>McCabe cyclic</td><td>           4</td></tr>
185            <tr><td>McCabe essential</td><td>           1</td></tr>
186            <tr><td>McCabe modular design</td><td>           1</td></tr>
187          </table>
188         
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