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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* This is part of the netCDF package.</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> Copyright 2006 University Corporation for Atmospheric Research/Unidata.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> See COPYRIGHT file for conditions of use.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"></span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> This is a very simple example which reads a 2D array of</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> sample data produced by simple_xy_wr.cpp.</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"></span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> This example is part of the netCDF tutorial:</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> http://www.unidata.ucar.edu/software/netcdf/docs/netcdf-tutorial</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"></span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> Full documentation of the netCDF C++ API can be found at:</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> http://www.unidata.ucar.edu/software/netcdf/docs/netcdf-cxx</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> $Id: simple_xy_rd.cpp,v 1.5 2010/02/11 22:36:43 russ Exp $</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">*/</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <iostream></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <netcdf></span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">using namespace </span><a class="code" href="namespacenetCDF.html">netCDF</a>;</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">using namespace </span><a class="code" href="namespacenetCDF_1_1exceptions.html">netCDF::exceptions</a>;</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// We are reading 2D data, a 6 x 12 grid. </span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> NX = 6;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> NY = 12;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// Return this in event of a problem.</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> NC_ERR = 2;</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keywordtype">int</span> main()</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> {</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">try</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  {</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="comment">// This is the array we will read.</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordtype">int</span> dataIn[NX][NY]; </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="comment">// Open the file for read access</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <a class="code" href="classnetCDF_1_1NcFile.html">NcFile</a> dataFile(<span class="stringliteral">"simple_xy.nc"</span>, NcFile::read);</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="comment">// Retrieve the variable named "data"</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <a class="code" href="classnetCDF_1_1NcVar.html">NcVar</a> data=dataFile.<a class="code" href="classnetCDF_1_1NcVar.html#acfb10fba7aa386e06551039bddd555c3">getVar</a>(<span class="stringliteral">"data"</span>);</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">if</span>(data.<a class="code" href="classnetCDF_1_1NcVar.html#abff3856710bf8ea8ddc4a01b52a61c88">isNull</a>()) <span class="keywordflow">return</span> NC_ERR;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  data.<a class="code" href="classnetCDF_1_1NcVar.html#acfb10fba7aa386e06551039bddd555c3">getVar</a>(dataIn);</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="comment">// Check the values. </span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < NX; i++)</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < NY; j++)</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">if</span> (dataIn[i][j] != i * NY + j)</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> NC_ERR;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">// The netCDF file is automatically closed by the NcFile destructor</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="comment">//cout << "*** SUCCESS reading example file simple_xy.nc!" << endl;</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  }<span class="keywordflow">catch</span>(<a class="code" href="classnetCDF_1_1exceptions_1_1NcException.html">NcException</a>& e)</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  e.what();</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  cout<<<span class="stringliteral">"FAILURE*************************************"</span><<endl;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">return</span> NC_ERR;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> }</div><div class="ttc" id="namespacenetCDF_html"><div class="ttname"><a href="namespacenetCDF.html">netCDF</a></div><div class="ttdoc">C++ API for netCDF4. </div><div class="ttdef"><b>Definition:</b> <a href="ncAtt_8h_source.html#l00009">ncAtt.h:9</a></div></div>
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<div class="ttc" id="namespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div></div>
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<div class="ttc" id="namespacenetCDF_1_1exceptions_html"><div class="ttname"><a href="namespacenetCDF_1_1exceptions.html">netCDF::exceptions</a></div><div class="ttdoc">Exception classes. </div><div class="ttdef"><b>Definition:</b> <a href="ncException_8h_source.html#l00015">ncException.h:15</a></div></div>
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<div class="ttc" id="classnetCDF_1_1NcVar_html_abff3856710bf8ea8ddc4a01b52a61c88"><div class="ttname"><a href="classnetCDF_1_1NcVar.html#abff3856710bf8ea8ddc4a01b52a61c88">netCDF::NcVar::isNull</a></div><div class="ttdeci">bool isNull() const </div><div class="ttdoc">Returns true if this object variable is not defined. </div><div class="ttdef"><b>Definition:</b> <a href="ncVar_8h_source.html#l00112">ncVar.h:112</a></div></div>
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<div class="ttc" id="classnetCDF_1_1NcVar_html_acfb10fba7aa386e06551039bddd555c3"><div class="ttname"><a href="classnetCDF_1_1NcVar.html#acfb10fba7aa386e06551039bddd555c3">netCDF::NcVar::getVar</a></div><div class="ttdeci">void getVar(void *dataValues) const </div><div class="ttdoc">This is an overloaded member function, provided for convenience. </div><div class="ttdef"><b>Definition:</b> <a href="ncVar_8cpp_source.html#l01439">ncVar.cpp:1439</a></div></div>
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<div class="ttc" id="classnetCDF_1_1exceptions_1_1NcException_html"><div class="ttname"><a href="classnetCDF_1_1exceptions_1_1NcException.html">netCDF::exceptions::NcException</a></div><div class="ttdoc">Base object is thrown if a netCDF exception is encountered. </div><div class="ttdef"><b>Definition:</b> <a href="ncException_8h_source.html#l00024">ncException.h:24</a></div></div>
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<div class="ttc" id="classnetCDF_1_1NcVar_html"><div class="ttname"><a href="classnetCDF_1_1NcVar.html">netCDF::NcVar</a></div><div class="ttdoc">Class represents a netCDF variable. </div><div class="ttdef"><b>Definition:</b> <a href="ncVar_8h_source.html#l00033">ncVar.h:33</a></div></div>
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<div class="ttc" id="classnetCDF_1_1NcFile_html"><div class="ttname"><a href="classnetCDF_1_1NcFile.html">netCDF::NcFile</a></div><div class="ttdoc">Class represents a netCDF root group. </div><div class="ttdef"><b>Definition:</b> <a href="ncFile_8h_source.html#l00018">ncFile.h:18</a></div></div>
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Generated on Fri Nov 11 2016 15:28:29 for NetCDF-C++. NetCDF is
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