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<h1>node.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// "node.cpp"</span>
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<a name="l00002"></a>00002
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<a name="l00003"></a>00003 <span class="comment">// (c) OPAC Team, LIFL, January 2006</span>
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<a name="l00004"></a>00004
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<a name="l00005"></a>00005 <span class="comment">/* </span>
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<a name="l00006"></a>00006 <span class="comment"> Contact: paradiseo-help@lists.gforge.inria.fr</span>
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<a name="l00007"></a>00007 <span class="comment">*/</span>
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<a name="l00008"></a>00008
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<a name="l00009"></a>00009 <span class="preprocessor">#include <math.h></span>
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<a name="l00010"></a>00010 <span class="preprocessor">#include <values.h></span>
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<a name="l00011"></a>00011
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<a name="l00012"></a>00012 <span class="preprocessor">#include "node.h"</span>
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<a name="l00013"></a>00013
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<a name="l00014"></a>00014 <span class="keywordtype">unsigned</span> numNodes; <span class="comment">/* Number of nodes */</span>
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<a name="l00015"></a>00015
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<a name="l00016"></a>00016 <span class="comment">//static unsigned * * dist; /* Square matrix of distances */</span>
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<a name="l00017"></a>00017
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<a name="l00018"></a>00018 <span class="keywordtype">double</span> * X_coord, * Y_coord;
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<a name="l00019"></a>00019
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<a name="l00020"></a>00020 <span class="keywordtype">double</span> X_min = MAXDOUBLE, X_max = MINDOUBLE, Y_min = MAXDOUBLE, Y_max = MINDOUBLE;
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<a name="l00021"></a>00021
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<a name="l00022"></a>00022 <span class="keywordtype">void</span> loadNodes (FILE * __f) {
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<a name="l00023"></a>00023
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<a name="l00024"></a>00024 <span class="comment">/* Coord */</span>
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<a name="l00025"></a>00025
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<a name="l00026"></a>00026 X_coord = <span class="keyword">new</span> <span class="keywordtype">double</span> [numNodes];
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<a name="l00027"></a>00027
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<a name="l00028"></a>00028 Y_coord = <span class="keyword">new</span> <span class="keywordtype">double</span> [numNodes];
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<a name="l00029"></a>00029
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<a name="l00030"></a>00030 <span class="keywordtype">unsigned</span> num;
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<a name="l00031"></a>00031
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<a name="l00032"></a>00032 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i < numNodes; i ++) {
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<a name="l00033"></a>00033
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<a name="l00034"></a>00034 fscanf (__f, <span class="stringliteral">"%u%lf%lf"</span>, & num, X_coord + i, Y_coord + i);
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<a name="l00035"></a>00035
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<a name="l00036"></a>00036 <span class="keywordflow">if</span> (X_coord [i] < X_min)
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<a name="l00037"></a>00037 X_min = X_coord [i];
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<a name="l00038"></a>00038 <span class="keywordflow">if</span> (X_coord [i] > X_max)
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<a name="l00039"></a>00039 X_max = X_coord [i];
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<a name="l00040"></a>00040 <span class="keywordflow">if</span> (Y_coord [i] < Y_min)
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<a name="l00041"></a>00041 Y_min = Y_coord [i];
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<a name="l00042"></a>00042 <span class="keywordflow">if</span> (Y_coord [i] > Y_max)
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<a name="l00043"></a>00043 Y_max = Y_coord [i];
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<a name="l00044"></a>00044 }
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<a name="l00045"></a>00045
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<a name="l00046"></a>00046 <span class="comment">/* Allocation */</span>
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<a name="l00047"></a>00047 <span class="comment">/*</span>
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<a name="l00048"></a>00048 <span class="comment"> dist = new unsigned * [numNodes];</span>
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<a name="l00049"></a>00049 <span class="comment"> </span>
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<a name="l00050"></a>00050 <span class="comment"> for (unsigned i = 0; i < numNodes; i ++)</span>
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<a name="l00051"></a>00051 <span class="comment"> dist [i] = new unsigned [numNodes];</span>
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<a name="l00052"></a>00052 <span class="comment"> */</span>
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<a name="l00053"></a>00053 <span class="comment">/* Computation of the distances */</span>
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<a name="l00054"></a>00054
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<a name="l00055"></a>00055 <span class="comment">/*</span>
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<a name="l00056"></a>00056 <span class="comment"> for (unsigned i = 0; i < numNodes; i ++) {</span>
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<a name="l00057"></a>00057 <span class="comment"></span>
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<a name="l00058"></a>00058 <span class="comment"> dist [i] [i] = 0;</span>
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<a name="l00059"></a>00059 <span class="comment"></span>
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<a name="l00060"></a>00060 <span class="comment"> for (unsigned j = 0; j < numNodes; j ++) {</span>
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<a name="l00061"></a>00061 <span class="comment"> </span>
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<a name="l00062"></a>00062 <span class="comment"> double dx = X_coord [i] - X_coord [j], dy = Y_coord [i] - Y_coord [j];</span>
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<a name="l00063"></a>00063 <span class="comment"> </span>
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<a name="l00064"></a>00064 <span class="comment"> dist [i] [j] = dist [j] [i] = (unsigned) (sqrt (dx * dx + dy * dy) + 0.5) ;</span>
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<a name="l00065"></a>00065 <span class="comment"> }</span>
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<a name="l00066"></a>00066 <span class="comment"> }*/</span>
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<a name="l00067"></a>00067 }
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<a name="l00068"></a>00068
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<a name="l00069"></a>00069 <span class="keywordtype">unsigned</span> distance (<a class="codeRef" doxygen="paradiseo-peo.doxytag:../..//" href="../..//structNode.html">Node</a> __from, <a class="codeRef" doxygen="paradiseo-peo.doxytag:../..//" href="../..//structNode.html">Node</a> __to) {
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<a name="l00070"></a>00070
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<a name="l00071"></a>00071 <span class="comment">// return dist [__from] [__to];</span>
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<a name="l00072"></a>00072
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<a name="l00073"></a>00073 <span class="keywordtype">double</span> dx = X_coord [__from] - X_coord [__to], dy = Y_coord [__from] - Y_coord [__to];
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<a name="l00074"></a>00074
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<a name="l00075"></a>00075 <span class="keywordflow">return</span> (<span class="keywordtype">unsigned</span>) (sqrt (dx * dx + dy * dy) + 0.5) ;
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<a name="l00076"></a>00076 }
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<a name="l00077"></a>00077
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Tue Jan 9 15:47:41 2007 for ParadisEO-PEO - Lessons by
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.7 </small></address>
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