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| 7 | <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> |
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| 9 | <title>where_tag.pro (SAXO Documentation)</title> |
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| 23 | <body onload="setTitle();"> |
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| 24 | |
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| 25 | <div id="navbar_title"> |
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| 26 | <h1>SAXO Documentation</h1> |
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| 30 | <div id="main_navbar"> |
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| 32 | <table cellspacing="0"> |
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| 33 | <tr> |
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| 34 | |
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| 35 | <td><a href="./../../overview.html" title="Overview of library">Overview</a></td> |
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| 36 | |
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| 38 | |
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| 39 | <td >Directory</td> |
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| 43 | <td><a href="./../../idldoc-categories.html" title="Browse library by category">Categories</a></td> |
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| 44 | |
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| 46 | |
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| 47 | <td><a href="./../../idldoc-index.html" title="Index of files, routines, and parameters">Index</a></td> |
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| 48 | |
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| 49 | |
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| 50 | |
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| 51 | <td><a href="./../../search-page.html" title="Search library">Search</a></td> |
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| 52 | |
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| 53 | |
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| 54 | <td id="selected">File</td> |
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| 55 | |
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| 56 | |
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| 57 | <td><a href="../../../../ToBeReviewed/STRUCTURE//where_tag.pro" title="Source code of a file">Source</a></td> |
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| 58 | |
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| 61 | <td><a href="./../../idldoc-help.html" title="Help on IDLdoc">Help</a></td> |
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| 62 | |
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| 63 | |
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| 64 | <td >Etc</td> |
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| 65 | |
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| 66 | <td id="flexible">Developer documentation</td> |
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| 67 | </tr> |
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| 68 | </table> |
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| 69 | |
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| 70 | </div> |
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| 71 | |
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| 72 | <div id="secondary_navbar"> |
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| 73 | |
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| 74 | <a href="struct2string.html"><<prev file</a> | next file >> <a href="where_tag.html" target="_TOP">view single page</a> | <a href="./../../index.html" target="_TOP">view frames</a> summary: fields | routine details: <a href="#routine_details">routine</a> |
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| 75 | |
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| 76 | </div> |
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| 77 | |
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| 78 | |
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| 79 | <div id="container"> |
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| 80 | |
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| 81 | <h1 class="directory"><a href="directory-overview.html">ToBeReviewed/STRUCTURE/</a></h1> |
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| 82 | <h2 class="pro_file">where_tag.pro</h2> |
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| 83 | |
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| 84 | <div id="file_attr"> |
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| 85 | <dl> |
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| 86 | </dl> |
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| 87 | </div> |
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| 88 | |
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| 89 | <div id="file_comments"> |
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| 90 | Like <a href="/Applications/itt/idl64/help/online_help/WHERE.html">WHERE</a> but works on structure tag names |
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| 91 | |
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| 92 | Obtain subscripts of elements in structure array for which |
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| 93 | a particular Tag has values in a range or matching specified values. |
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| 94 | |
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| 95 | Like the <a href="/Applications/itt/idl64/help/online_help/WHERE.html">WHERE</a> function but for use with structures |
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| 96 | </div> |
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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 | |
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| 102 | |
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| 103 | |
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| 104 | |
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| 105 | |
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| 106 | <div id="routine_details"> |
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| 107 | |
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| 108 | |
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| 109 | <div class="routine_details" id="_where_tag"> |
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| 110 | |
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| 111 | <h2><a class="top" href="#container">top</a>where_tag <span class="categories"> |
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| 112 | Structure |
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| 113 | </span></h2> |
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| 114 | |
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| 115 | <p class="header"> |
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| 116 | <span class="result">result = </span>where_tag(<span class="result"><a href="#_where_tag_param_Struct">Struct</a>, <a href="#_where_tag_param_Nfound">Nfound</a></span>, <a href="#_where_tag_keyword_TAG_NAME">TAG_NAME</a>=<span class="result">TAG_NAME</span>, <a href="#_where_tag_keyword_TAG_NUMBER">TAG_NUMBER</a>=<span class="result">TAG_NUMBER</span>, <a href="#_where_tag_keyword_ISELECT">ISELECT</a>=<span class="result">ISELECT</span>, <a href="#_where_tag_keyword_NOPRINT">NOPRINT</a>=<span class="result">NOPRINT</span>, <a href="#_where_tag_keyword_RANGE">RANGE</a>=<span class="result">RANGE</span>, <a href="#_where_tag_keyword_VALUES">VALUES</a>=<span class="result">VALUES</span>)</p> |
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| 117 | |
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| 118 | <div class="comments"> |
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| 119 | </div> |
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| 120 | |
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| 121 | <h3>Return value</h3><div class="preformat"> |
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| 122 | Nfound {out} |
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| 123 | # of occurrences found. |
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| 124 | </div> |
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| 125 | |
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| 126 | |
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| 127 | <h3>Parameters</h3> |
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| 128 | |
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| 129 | |
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| 130 | <h4 id="_where_tag_param_Struct">Struct |
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| 131 | <span class="attr">in</span> |
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| 132 | |
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| 133 | |
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| 134 | <span class="attr">required</span> |
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| 135 | |
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| 136 | |
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| 137 | |
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| 138 | |
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| 139 | </h4> |
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| 140 | |
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| 141 | <div class="comments"> |
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| 142 | structure array to search. |
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| 143 | </div> |
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| 144 | |
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| 145 | <h4 id="_where_tag_param_Nfound">Nfound |
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| 146 | |
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| 148 | |
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| 150 | |
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| 151 | |
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| 153 | |
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| 154 | </h4> |
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| 155 | |
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| 156 | <div class="comments"></div> |
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| 157 | |
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| 158 | |
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| 159 | |
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| 160 | |
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| 161 | |
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| 162 | |
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| 163 | <h3>Keywords</h3> |
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| 164 | |
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| 165 | <h4 id="_where_tag_keyword_TAG_NAME">TAG_NAME |
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| 166 | |
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| 167 | |
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| 168 | |
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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 | </h4> |
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| 175 | |
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| 176 | <div class="comments"> |
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| 177 | Scalar string specifying Tag Name |
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| 178 | </div> |
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| 179 | |
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| 180 | <h4 id="_where_tag_keyword_TAG_NUMBER">TAG_NUMBER |
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| 181 | |
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| 186 | |
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| 187 | |
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| 188 | |
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| 189 | </h4> |
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| 190 | |
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| 191 | <div class="comments"> |
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| 192 | Otherwise give the Tag Number |
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| 193 | </div> |
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| 194 | |
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| 195 | <h4 id="_where_tag_keyword_ISELECT">ISELECT |
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| 196 | |
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| 197 | |
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| 198 | |
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| 200 | |
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| 201 | |
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| 202 | |
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| 203 | |
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| 204 | </h4> |
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| 205 | |
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| 206 | <div class="comments"> |
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| 207 | Specifies indices to select only part of structure array, |
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| 208 | (use it to recycle subscripts from previous searches). |
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| 209 | </div> |
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| 210 | |
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| 211 | <h4 id="_where_tag_keyword_NOPRINT">NOPRINT |
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| 212 | |
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| 213 | |
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| 214 | |
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| 219 | |
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| 220 | </h4> |
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| 221 | |
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| 222 | <div class="comments"> |
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| 223 | Suppress informational messages about nothing found. |
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| 224 | </div> |
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| 225 | |
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| 226 | <h4 id="_where_tag_keyword_RANGE">RANGE |
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| 227 | |
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| 228 | |
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| 229 | |
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| 230 | |
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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 | </h4> |
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| 236 | |
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| 237 | <div class="comments"> |
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| 238 | [min,max] range to search for in STRUCT |
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| 239 | </div> |
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| 240 | |
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| 241 | <h4 id="_where_tag_keyword_VALUES">VALUES |
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| 242 | |
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| 249 | |
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| 250 | </h4> |
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| 251 | |
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| 252 | <div class="comments"> |
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| 253 | One or array of numbers to match for in STRUCT |
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| 254 | </div> |
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| 255 | |
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| 256 | |
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| 257 | |
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| 258 | <h3>Examples</h3><div class="preformat"> |
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| 259 | |
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| 260 | Suppose STR is a structure with tags CAT_NO:indgen(10), and |
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| 261 | NAME:strarr(10). Find the indices where STR.CAT_NO is between 3 and 5. |
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| 262 | |
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| 263 | IDL> print, WHERE_TAG( str, TAG_NAME = 'CAT_NO', VALUE = [3,4,5] ) |
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| 264 | or |
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| 265 | IDL> print, WHERE_TAG( str, TAG_NUM = 0, RANGE = [3,5]) |
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| 266 | </div> |
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| 267 | <h3>Version history</h3> |
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| 268 | |
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| 269 | <h4>Version</h4><div class="preformat"> |
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| 270 | $Id: where_tag.pro 375 2008-08-08 15:55:40Z pinsard $ |
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| 271 | </div> |
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| 272 | <h4>History</h4><div class="preformat"> |
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| 273 | written 1990 Frank Varosi STX @ NASA/GSFC |
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| 274 | Stop printing "Tag <xxx> not found" with /NOPRINT, CD Pike 8-Jun-93 |
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| 275 | </div> |
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| 276 | |
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| 277 | |
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| 278 | <h3>Known issues</h3> |
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| 279 | |
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| 280 | |
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| 281 | |
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| 282 | <h4>Restrictions</h4><div class="preformat"> |
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| 283 | User *must* specify (1) TAG_NAME or TAG_NUMBER to search, and (2) |
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| 284 | the VALUES or RANGE to search on. |
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| 285 | </div> |
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| 286 | |
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| 293 | |
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| 294 | |
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| 295 | <h3>Statistics</h3> |
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| 296 | <table class="statistics"> |
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| 297 | <tr><td>McCabe cyclic</td><td> 26</td></tr> |
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| 298 | <tr><td>McCabe essential</td><td> 1</td></tr> |
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| 299 | <tr><td>McCabe modular design</td><td> 1</td></tr> |
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| 300 | </table> |
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| 301 | |
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| 302 | |
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| 303 | </div> |
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| 304 | |
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| 305 | </div> |
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| 306 | |
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| 307 | |
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| 308 | |
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| 309 | <div id="tagline">Produced by IDLdoc 2.0.</div> |
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| 310 | |
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| 311 | </div> |
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| 312 | |
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| 313 | </body> |
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| 314 | </html> |
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