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51  <h1>Source code for sas.dataloader.readers.red2d_reader</h1><div class="highlight"><pre>
52<span class="sd">&quot;&quot;&quot;</span>
53<span class="sd">    TXT/IGOR 2D Q Map file reader</span>
54<span class="sd">&quot;&quot;&quot;</span>
55<span class="c">#####################################################################</span>
56<span class="c">#This software was developed by the University of Tennessee as part of the</span>
57<span class="c">#Distributed Data Analysis of Neutron Scattering Experiments (DANSE)</span>
58<span class="c">#project funded by the US National Science Foundation. </span>
59<span class="c">#See the license text in license.txt</span>
60<span class="c">#copyright 2008, University of Tennessee</span>
61<span class="c">######################################################################</span>
62<span class="kn">import</span> <span class="nn">os</span>
63<span class="kn">import</span> <span class="nn">numpy</span>
64<span class="kn">import</span> <span class="nn">math</span>
65<span class="kn">from</span> <span class="nn">sas.dataloader.data_info</span> <span class="kn">import</span> <span class="n">Data2D</span><span class="p">,</span> <span class="n">Detector</span>
66
67<span class="c"># Look for unit converter</span>
68<span class="n">has_converter</span> <span class="o">=</span> <span class="bp">True</span>
69<span class="k">try</span><span class="p">:</span>
70    <span class="kn">from</span> <span class="nn">sas.data_util.nxsunit</span> <span class="kn">import</span> <span class="n">Converter</span>
71<span class="k">except</span><span class="p">:</span>
72    <span class="n">has_converter</span> <span class="o">=</span> <span class="bp">False</span>
73   
74   
75<div class="viewcode-block" id="check_point"><a class="viewcode-back" href="../../../../dev/api/sas.dataloader.readers.html#sas.dataloader.readers.red2d_reader.check_point">[docs]</a><span class="k">def</span> <span class="nf">check_point</span><span class="p">(</span><span class="n">x_point</span><span class="p">):</span>
76    <span class="sd">&quot;&quot;&quot;</span>
77<span class="sd">    check point validity</span>
78<span class="sd">    &quot;&quot;&quot;</span>
79    <span class="c"># set zero for non_floats</span>
80    <span class="k">try</span><span class="p">:</span>
81        <span class="k">return</span> <span class="nb">float</span><span class="p">(</span><span class="n">x_point</span><span class="p">)</span>
82    <span class="k">except</span><span class="p">:</span>
83        <span class="k">return</span> <span class="mi">0</span>
84     
85        </div>
86<div class="viewcode-block" id="Reader"><a class="viewcode-back" href="../../../../dev/api/sas.dataloader.readers.html#sas.dataloader.readers.red2d_reader.Reader">[docs]</a><span class="k">class</span> <span class="nc">Reader</span><span class="p">:</span>
87    <span class="sd">&quot;&quot;&quot; Simple data reader for Igor data files &quot;&quot;&quot;</span>
88    <span class="c">## File type</span>
89    <span class="n">type_name</span> <span class="o">=</span> <span class="s">&quot;IGOR/DAT 2D Q_map&quot;</span>
90    <span class="c">## Wildcards</span>
91    <span class="nb">type</span> <span class="o">=</span> <span class="p">[</span><span class="s">&quot;IGOR/DAT 2D file in Q_map (*.dat)|*.DAT&quot;</span><span class="p">]</span>
92    <span class="c">## Extension</span>
93    <span class="n">ext</span> <span class="o">=</span> <span class="p">[</span><span class="s">&#39;.DAT&#39;</span><span class="p">,</span> <span class="s">&#39;.dat&#39;</span><span class="p">]</span>
94   
95<div class="viewcode-block" id="Reader.write"><a class="viewcode-back" href="../../../../dev/api/sas.dataloader.readers.html#sas.dataloader.readers.red2d_reader.Reader.write">[docs]</a>    <span class="k">def</span> <span class="nf">write</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">filename</span><span class="p">,</span> <span class="n">data</span><span class="p">):</span>
96        <span class="sd">&quot;&quot;&quot;</span>
97<span class="sd">        Write to .dat</span>
98<span class="sd">        </span>
99<span class="sd">        :param filename: file name to write</span>
100<span class="sd">        :param data: data2D</span>
101<span class="sd">        &quot;&quot;&quot;</span>
102        <span class="kn">import</span> <span class="nn">time</span>
103        <span class="c"># Write the file</span>
104        <span class="n">fd</span> <span class="o">=</span> <span class="nb">open</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="s">&#39;w&#39;</span><span class="p">)</span>
105        <span class="n">t</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">localtime</span><span class="p">()</span>
106        <span class="n">time_str</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">strftime</span><span class="p">(</span><span class="s">&quot;%H:%M on %b </span><span class="si">%d</span><span class="s"> %y&quot;</span><span class="p">,</span> <span class="n">t</span><span class="p">)</span>
107       
108        <span class="n">header_str</span> <span class="o">=</span> <span class="s">&quot;Data columns are Qx - Qy - I(Qx,Qy)</span><span class="se">\n\n</span><span class="s">ASCII data&quot;</span>
109        <span class="n">header_str</span> <span class="o">+=</span> <span class="s">&quot; created at </span><span class="si">%s</span><span class="s"> </span><span class="se">\n\n</span><span class="s">&quot;</span> <span class="o">%</span> <span class="n">time_str</span>
110        <span class="c"># simple 2D header</span>
111        <span class="n">fd</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">header_str</span><span class="p">)</span>
112        <span class="c"># write qx qy I values</span>
113        <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">data</span><span class="o">.</span><span class="n">data</span><span class="p">)):</span>
114            <span class="n">fd</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">&quot;</span><span class="si">%g</span><span class="s">  </span><span class="si">%g</span><span class="s">  </span><span class="si">%g</span><span class="se">\n</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">data</span><span class="o">.</span><span class="n">qx_data</span><span class="p">[</span><span class="n">i</span><span class="p">],</span>
115                                        <span class="n">data</span><span class="o">.</span><span class="n">qy_data</span><span class="p">[</span><span class="n">i</span><span class="p">],</span>
116                                       <span class="n">data</span><span class="o">.</span><span class="n">data</span><span class="p">[</span><span class="n">i</span><span class="p">]))</span>
117        <span class="c"># close</span>
118        <span class="n">fd</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
119</div>
120<div class="viewcode-block" id="Reader.read"><a class="viewcode-back" href="../../../../dev/api/sas.dataloader.readers.html#sas.dataloader.readers.red2d_reader.Reader.read">[docs]</a>    <span class="k">def</span> <span class="nf">read</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">filename</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
121        <span class="sd">&quot;&quot;&quot; Read file &quot;&quot;&quot;</span>
122        <span class="k">if</span> <span class="ow">not</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">isfile</span><span class="p">(</span><span class="n">filename</span><span class="p">):</span>
123            <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">,</span> \
124            <span class="s">&quot;Specified file </span><span class="si">%s</span><span class="s"> is not a regular file&quot;</span> <span class="o">%</span> <span class="n">filename</span>
125
126        <span class="c"># Read file</span>
127        <span class="n">f</span> <span class="o">=</span> <span class="nb">open</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="s">&#39;r&#39;</span><span class="p">)</span>
128        <span class="n">buf</span> <span class="o">=</span> <span class="n">f</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
129        <span class="n">f</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
130        <span class="c"># Instantiate data object</span>
131        <span class="n">output</span> <span class="o">=</span> <span class="n">Data2D</span><span class="p">()</span>
132        <span class="n">output</span><span class="o">.</span><span class="n">filename</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">basename</span><span class="p">(</span><span class="n">filename</span><span class="p">)</span>
133        <span class="n">detector</span> <span class="o">=</span> <span class="n">Detector</span><span class="p">()</span>
134        <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">output</span><span class="o">.</span><span class="n">detector</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
135            <span class="k">print</span> <span class="nb">str</span><span class="p">(</span><span class="n">output</span><span class="o">.</span><span class="n">detector</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
136        <span class="n">output</span><span class="o">.</span><span class="n">detector</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">detector</span><span class="p">)</span>
137               
138        <span class="c"># Get content</span>
139        <span class="n">dataStarted</span> <span class="o">=</span> <span class="bp">False</span>
140       
141        <span class="c">## Defaults</span>
142        <span class="n">lines</span> <span class="o">=</span> <span class="n">buf</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s">&#39;</span><span class="se">\n</span><span class="s">&#39;</span><span class="p">)</span>
143        <span class="n">x</span> <span class="o">=</span> <span class="p">[]</span>
144        <span class="n">y</span> <span class="o">=</span> <span class="p">[]</span>
145       
146        <span class="n">wavelength</span> <span class="o">=</span> <span class="bp">None</span>
147        <span class="n">distance</span> <span class="o">=</span> <span class="bp">None</span>
148        <span class="n">transmission</span> <span class="o">=</span> <span class="bp">None</span>
149       
150        <span class="n">pixel_x</span> <span class="o">=</span> <span class="bp">None</span>
151        <span class="n">pixel_y</span> <span class="o">=</span> <span class="bp">None</span>
152       
153        <span class="n">isInfo</span> <span class="o">=</span> <span class="bp">False</span>
154        <span class="n">isCenter</span> <span class="o">=</span> <span class="bp">False</span>
155
156        <span class="n">data_conv_q</span> <span class="o">=</span> <span class="bp">None</span>
157        <span class="n">data_conv_i</span> <span class="o">=</span> <span class="bp">None</span>
158       
159        <span class="c"># Set units: This is the unit assumed for Q and I in the data file.</span>
160        <span class="k">if</span> <span class="n">has_converter</span> <span class="o">==</span> <span class="bp">True</span> <span class="ow">and</span> <span class="n">output</span><span class="o">.</span><span class="n">Q_unit</span> <span class="o">!=</span> <span class="s">&#39;1/A&#39;</span><span class="p">:</span>
161            <span class="n">data_conv_q</span> <span class="o">=</span> <span class="n">Converter</span><span class="p">(</span><span class="s">&#39;1/A&#39;</span><span class="p">)</span>
162            <span class="c"># Test it</span>
163            <span class="n">data_conv_q</span><span class="p">(</span><span class="mf">1.0</span><span class="p">,</span> <span class="n">output</span><span class="o">.</span><span class="n">Q_unit</span><span class="p">)</span>
164           
165        <span class="k">if</span> <span class="n">has_converter</span> <span class="o">==</span> <span class="bp">True</span> <span class="ow">and</span> <span class="n">output</span><span class="o">.</span><span class="n">I_unit</span> <span class="o">!=</span> <span class="s">&#39;1/cm&#39;</span><span class="p">:</span>
166            <span class="n">data_conv_i</span> <span class="o">=</span> <span class="n">Converter</span><span class="p">(</span><span class="s">&#39;1/cm&#39;</span><span class="p">)</span>
167            <span class="c"># Test it</span>
168            <span class="n">data_conv_i</span><span class="p">(</span><span class="mf">1.0</span><span class="p">,</span> <span class="n">output</span><span class="o">.</span><span class="n">I_unit</span><span class="p">)</span>
169       
170             
171        <span class="c"># Remove the last lines before the for loop if the lines are empty</span>
172        <span class="c"># to calculate the exact number of data points</span>
173        <span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
174        <span class="k">while</span> <span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">lines</span><span class="p">[</span><span class="nb">len</span><span class="p">(</span><span class="n">lines</span><span class="p">)</span> <span class="o">-</span> <span class="p">(</span><span class="n">count</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)]</span><span class="o">.</span><span class="n">lstrip</span><span class="p">()</span><span class="o">.</span><span class="n">rstrip</span><span class="p">())</span> <span class="o">&lt;</span> <span class="mi">1</span><span class="p">):</span>
175            <span class="k">del</span> <span class="n">lines</span><span class="p">[</span><span class="nb">len</span><span class="p">(</span><span class="n">lines</span><span class="p">)</span> <span class="o">-</span> <span class="p">(</span><span class="n">count</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)]</span>
176            <span class="n">count</span> <span class="o">=</span> <span class="n">count</span> <span class="o">+</span> <span class="mi">1</span>
177
178        <span class="c">#Read Header and find the dimensions of 2D data</span>
179        <span class="n">line_num</span> <span class="o">=</span> <span class="mi">0</span>
180        <span class="c"># Old version NIST files: 0</span>
181        <span class="n">ver</span> <span class="o">=</span> <span class="mi">0</span>
182        <span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">lines</span><span class="p">:</span>
183            <span class="n">line_num</span> <span class="o">+=</span> <span class="mi">1</span>
184            <span class="c">## Reading the header applies only to IGOR/NIST 2D q_map data files</span>
185            <span class="c"># Find setup info line</span>
186            <span class="k">if</span> <span class="n">isInfo</span><span class="p">:</span>
187                <span class="n">isInfo</span> <span class="o">=</span> <span class="bp">False</span>
188                <span class="n">line_toks</span> <span class="o">=</span> <span class="n">line</span><span class="o">.</span><span class="n">split</span><span class="p">()</span>
189                <span class="c"># Wavelength in Angstrom</span>
190                <span class="k">try</span><span class="p">:</span>
191                    <span class="n">wavelength</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">line_toks</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
192                    <span class="c"># Units</span>
193                    <span class="k">if</span> <span class="n">has_converter</span> <span class="o">==</span> <span class="bp">True</span> <span class="ow">and</span> \
194                    <span class="n">output</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">wavelength_unit</span> <span class="o">!=</span> <span class="s">&#39;A&#39;</span><span class="p">:</span>
195                        <span class="n">conv</span> <span class="o">=</span> <span class="n">Converter</span><span class="p">(</span><span class="s">&#39;A&#39;</span><span class="p">)</span>
196                        <span class="n">wavelength</span> <span class="o">=</span> <span class="n">conv</span><span class="p">(</span><span class="n">wavelength</span><span class="p">,</span>
197                                          <span class="n">units</span><span class="o">=</span><span class="n">output</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">wavelength_unit</span><span class="p">)</span>
198                <span class="k">except</span><span class="p">:</span>
199                    <span class="c">#Not required</span>
200                    <span class="k">pass</span>
201                <span class="c"># Distance in mm</span>
202                <span class="k">try</span><span class="p">:</span>
203                    <span class="n">distance</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">line_toks</span><span class="p">[</span><span class="mi">3</span><span class="p">])</span>
204                    <span class="c"># Units</span>
205                    <span class="k">if</span> <span class="n">has_converter</span> <span class="o">==</span> <span class="bp">True</span> <span class="ow">and</span> <span class="n">detector</span><span class="o">.</span><span class="n">distance_unit</span> <span class="o">!=</span> <span class="s">&#39;m&#39;</span><span class="p">:</span>
206                        <span class="n">conv</span> <span class="o">=</span> <span class="n">Converter</span><span class="p">(</span><span class="s">&#39;m&#39;</span><span class="p">)</span>
207                        <span class="n">distance</span> <span class="o">=</span> <span class="n">conv</span><span class="p">(</span><span class="n">distance</span><span class="p">,</span> <span class="n">units</span><span class="o">=</span><span class="n">detector</span><span class="o">.</span><span class="n">distance_unit</span><span class="p">)</span>
208                <span class="k">except</span><span class="p">:</span>
209                    <span class="c">#Not required</span>
210                    <span class="k">pass</span>
211               
212                <span class="c"># Distance in meters</span>
213                <span class="k">try</span><span class="p">:</span>
214                    <span class="n">transmission</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">line_toks</span><span class="p">[</span><span class="mi">4</span><span class="p">])</span>
215                <span class="k">except</span><span class="p">:</span>
216                    <span class="c">#Not required</span>
217                    <span class="k">pass</span>
218                                           
219            <span class="k">if</span> <span class="n">line</span><span class="o">.</span><span class="n">count</span><span class="p">(</span><span class="s">&quot;LAMBDA&quot;</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
220                <span class="n">isInfo</span> <span class="o">=</span> <span class="bp">True</span>
221               
222            <span class="c"># Find center info line</span>
223            <span class="k">if</span> <span class="n">isCenter</span><span class="p">:</span>
224                <span class="n">isCenter</span> <span class="o">=</span> <span class="bp">False</span>
225                <span class="n">line_toks</span> <span class="o">=</span> <span class="n">line</span><span class="o">.</span><span class="n">split</span><span class="p">()</span>
226                <span class="c"># Center in bin number</span>
227                <span class="n">center_x</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">line_toks</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
228                <span class="n">center_y</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">line_toks</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
229
230            <span class="k">if</span> <span class="n">line</span><span class="o">.</span><span class="n">count</span><span class="p">(</span><span class="s">&quot;BCENT&quot;</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
231                <span class="n">isCenter</span> <span class="o">=</span> <span class="bp">True</span>
232            <span class="c"># Check version</span>
233            <span class="k">if</span> <span class="n">line</span><span class="o">.</span><span class="n">count</span><span class="p">(</span><span class="s">&quot;Data columns&quot;</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
234                <span class="k">if</span> <span class="n">line</span><span class="o">.</span><span class="n">count</span><span class="p">(</span><span class="s">&quot;err(I)&quot;</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
235                    <span class="n">ver</span> <span class="o">=</span> <span class="mi">1</span>
236            <span class="c"># Find data start</span>
237            <span class="k">if</span> <span class="n">line</span><span class="o">.</span><span class="n">count</span><span class="p">(</span><span class="s">&quot;ASCII data&quot;</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
238                <span class="n">dataStarted</span> <span class="o">=</span> <span class="bp">True</span>
239                <span class="k">continue</span>
240
241            <span class="c">## Read and get data.</span>
242            <span class="k">if</span> <span class="n">dataStarted</span> <span class="o">==</span> <span class="bp">True</span><span class="p">:</span>
243                <span class="n">line_toks</span> <span class="o">=</span> <span class="n">line</span><span class="o">.</span><span class="n">split</span><span class="p">()</span>
244                <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">line_toks</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
245                    <span class="c">#empty line</span>
246                    <span class="k">continue</span>
247                <span class="c"># the number of columns must be stayed same </span>
248                <span class="n">col_num</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">line_toks</span><span class="p">)</span>
249                <span class="k">break</span>
250        <span class="c"># Make numpy array to remove header lines using index</span>
251        <span class="n">lines_array</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">array</span><span class="p">(</span><span class="n">lines</span><span class="p">)</span>
252
253        <span class="c"># index for lines_array</span>
254        <span class="n">lines_index</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">arange</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">lines</span><span class="p">))</span>
255       
256        <span class="c"># get the data lines</span>
257        <span class="n">data_lines</span> <span class="o">=</span> <span class="n">lines_array</span><span class="p">[</span><span class="n">lines_index</span> <span class="o">&gt;=</span> <span class="p">(</span><span class="n">line_num</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)]</span>
258        <span class="c"># Now we get the total number of rows (i.e., # of data points)</span>
259        <span class="n">row_num</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">data_lines</span><span class="p">)</span>
260        <span class="c"># make it as list again to control the separators</span>
261        <span class="n">data_list</span> <span class="o">=</span> <span class="s">&quot; &quot;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">data_lines</span><span class="o">.</span><span class="n">tolist</span><span class="p">())</span>
262        <span class="c"># split all data to one big list w/&quot; &quot;separator</span>
263        <span class="n">data_list</span> <span class="o">=</span> <span class="n">data_list</span><span class="o">.</span><span class="n">split</span><span class="p">()</span>
264 
265        <span class="c"># Check if the size is consistent with data, otherwise</span>
266        <span class="c">#try the tab(\t) separator</span>
267        <span class="c"># (this may be removed once get the confidence</span>
268        <span class="c">#the former working all cases).</span>
269        <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">data_list</span><span class="p">)</span> <span class="o">!=</span> <span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">data_lines</span><span class="p">))</span> <span class="o">*</span> <span class="n">col_num</span><span class="p">:</span>
270            <span class="n">data_list</span> <span class="o">=</span> <span class="s">&quot;</span><span class="se">\t</span><span class="s">&quot;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">data_lines</span><span class="o">.</span><span class="n">tolist</span><span class="p">())</span>
271            <span class="n">data_list</span> <span class="o">=</span> <span class="n">data_list</span><span class="o">.</span><span class="n">split</span><span class="p">()</span>
272
273        <span class="c"># Change it(string) into float</span>
274        <span class="c">#data_list = map(float,data_list)</span>
275        <span class="n">data_list1</span> <span class="o">=</span> <span class="nb">map</span><span class="p">(</span><span class="n">check_point</span><span class="p">,</span> <span class="n">data_list</span><span class="p">)</span>
276
277        <span class="c"># numpy array form</span>
278        <span class="n">data_array</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">array</span><span class="p">(</span><span class="n">data_list1</span><span class="p">)</span>
279        <span class="c"># Redimesion based on the row_num and col_num,</span>
280        <span class="c">#otherwise raise an error.</span>
281        <span class="k">try</span><span class="p">:</span>
282            <span class="n">data_point</span> <span class="o">=</span> <span class="n">data_array</span><span class="o">.</span><span class="n">reshape</span><span class="p">(</span><span class="n">row_num</span><span class="p">,</span> <span class="n">col_num</span><span class="p">)</span><span class="o">.</span><span class="n">transpose</span><span class="p">()</span>
283        <span class="k">except</span><span class="p">:</span>
284            <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;red2d_reader: Can&#39;t read this file: Not a proper file format&quot;</span>
285            <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">,</span> <span class="n">msg</span>
286        <span class="c">## Get the all data: Let&#39;s HARDcoding; Todo find better way</span>
287        <span class="c"># Defaults</span>
288        <span class="n">dqx_data</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">zeros</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
289        <span class="n">dqy_data</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">zeros</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
290        <span class="n">err_data</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">ones</span><span class="p">(</span><span class="n">row_num</span><span class="p">)</span>
291        <span class="n">qz_data</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">zeros</span><span class="p">(</span><span class="n">row_num</span><span class="p">)</span>
292        <span class="n">mask</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">ones</span><span class="p">(</span><span class="n">row_num</span><span class="p">,</span> <span class="n">dtype</span><span class="o">=</span><span class="nb">bool</span><span class="p">)</span>
293        <span class="c"># Get from the array</span>
294        <span class="n">qx_data</span> <span class="o">=</span> <span class="n">data_point</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
295        <span class="n">qy_data</span> <span class="o">=</span> <span class="n">data_point</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
296        <span class="n">data</span> <span class="o">=</span> <span class="n">data_point</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
297        <span class="k">if</span> <span class="n">ver</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
298            <span class="k">if</span> <span class="n">col_num</span> <span class="o">&gt;</span> <span class="p">(</span><span class="mi">2</span> <span class="o">+</span> <span class="n">ver</span><span class="p">):</span>
299                <span class="n">err_data</span> <span class="o">=</span> <span class="n">data_point</span><span class="p">[(</span><span class="mi">2</span> <span class="o">+</span> <span class="n">ver</span><span class="p">)]</span>
300        <span class="k">if</span> <span class="n">col_num</span> <span class="o">&gt;</span> <span class="p">(</span><span class="mi">3</span> <span class="o">+</span> <span class="n">ver</span><span class="p">):</span>
301            <span class="n">qz_data</span> <span class="o">=</span> <span class="n">data_point</span><span class="p">[(</span><span class="mi">3</span> <span class="o">+</span> <span class="n">ver</span><span class="p">)]</span>
302        <span class="k">if</span> <span class="n">col_num</span> <span class="o">&gt;</span> <span class="p">(</span><span class="mi">4</span> <span class="o">+</span> <span class="n">ver</span><span class="p">):</span>
303            <span class="n">dqx_data</span> <span class="o">=</span> <span class="n">data_point</span><span class="p">[(</span><span class="mi">4</span> <span class="o">+</span> <span class="n">ver</span><span class="p">)]</span>
304        <span class="k">if</span> <span class="n">col_num</span> <span class="o">&gt;</span> <span class="p">(</span><span class="mi">5</span> <span class="o">+</span> <span class="n">ver</span><span class="p">):</span>
305            <span class="n">dqy_data</span> <span class="o">=</span> <span class="n">data_point</span><span class="p">[(</span><span class="mi">5</span> <span class="o">+</span> <span class="n">ver</span><span class="p">)]</span>
306        <span class="c">#if col_num &gt; (6 + ver): mask[data_point[(6 + ver)] &lt; 1] = False</span>
307        <span class="n">q_data</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">sqrt</span><span class="p">(</span><span class="n">qx_data</span><span class="o">*</span><span class="n">qx_data</span><span class="o">+</span><span class="n">qy_data</span><span class="o">*</span><span class="n">qy_data</span><span class="o">+</span><span class="n">qz_data</span><span class="o">*</span><span class="n">qz_data</span><span class="p">)</span>
308           
309        <span class="c"># Extra protection(it is needed for some data files): </span>
310        <span class="c"># If all mask elements are False, put all True</span>
311        <span class="k">if</span> <span class="ow">not</span> <span class="n">mask</span><span class="o">.</span><span class="n">any</span><span class="p">():</span>
312            <span class="n">mask</span><span class="p">[</span><span class="n">mask</span> <span class="o">==</span> <span class="bp">False</span><span class="p">]</span> <span class="o">=</span> <span class="bp">True</span>
313 
314        <span class="c"># Store limits of the image in q space</span>
315        <span class="n">xmin</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">min</span><span class="p">(</span><span class="n">qx_data</span><span class="p">)</span>
316        <span class="n">xmax</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">max</span><span class="p">(</span><span class="n">qx_data</span><span class="p">)</span>
317        <span class="n">ymin</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">min</span><span class="p">(</span><span class="n">qy_data</span><span class="p">)</span>
318        <span class="n">ymax</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">max</span><span class="p">(</span><span class="n">qy_data</span><span class="p">)</span>
319
320        <span class="c"># units</span>
321        <span class="k">if</span> <span class="n">has_converter</span> <span class="o">==</span> <span class="bp">True</span> <span class="ow">and</span> <span class="n">output</span><span class="o">.</span><span class="n">Q_unit</span> <span class="o">!=</span> <span class="s">&#39;1/A&#39;</span><span class="p">:</span>
322            <span class="n">xmin</span> <span class="o">=</span> <span class="n">data_conv_q</span><span class="p">(</span><span class="n">xmin</span><span class="p">,</span> <span class="n">units</span><span class="o">=</span><span class="n">output</span><span class="o">.</span><span class="n">Q_unit</span><span class="p">)</span>
323            <span class="n">xmax</span> <span class="o">=</span> <span class="n">data_conv_q</span><span class="p">(</span><span class="n">xmax</span><span class="p">,</span> <span class="n">units</span><span class="o">=</span><span class="n">output</span><span class="o">.</span><span class="n">Q_unit</span><span class="p">)</span>
324            <span class="n">ymin</span> <span class="o">=</span> <span class="n">data_conv_q</span><span class="p">(</span><span class="n">ymin</span><span class="p">,</span> <span class="n">units</span><span class="o">=</span><span class="n">output</span><span class="o">.</span><span class="n">Q_unit</span><span class="p">)</span>
325            <span class="n">ymax</span> <span class="o">=</span> <span class="n">data_conv_q</span><span class="p">(</span><span class="n">ymax</span><span class="p">,</span> <span class="n">units</span><span class="o">=</span><span class="n">output</span><span class="o">.</span><span class="n">Q_unit</span><span class="p">)</span>
326           
327        <span class="c">## calculate the range of the qx and qy_data</span>
328        <span class="n">x_size</span> <span class="o">=</span> <span class="n">math</span><span class="o">.</span><span class="n">fabs</span><span class="p">(</span><span class="n">xmax</span> <span class="o">-</span> <span class="n">xmin</span><span class="p">)</span>
329        <span class="n">y_size</span> <span class="o">=</span> <span class="n">math</span><span class="o">.</span><span class="n">fabs</span><span class="p">(</span><span class="n">ymax</span> <span class="o">-</span> <span class="n">ymin</span><span class="p">)</span>
330       
331        <span class="c"># calculate the number of pixels in the each axes</span>
332        <span class="n">npix_y</span> <span class="o">=</span> <span class="n">math</span><span class="o">.</span><span class="n">floor</span><span class="p">(</span><span class="n">math</span><span class="o">.</span><span class="n">sqrt</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">data</span><span class="p">)))</span>
333        <span class="n">npix_x</span> <span class="o">=</span> <span class="n">math</span><span class="o">.</span><span class="n">floor</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">data</span><span class="p">)</span> <span class="o">/</span> <span class="n">npix_y</span><span class="p">)</span>
334       
335        <span class="c"># calculate the size of bins</span>
336        <span class="n">xstep</span> <span class="o">=</span> <span class="n">x_size</span> <span class="o">/</span> <span class="p">(</span><span class="n">npix_x</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
337        <span class="n">ystep</span> <span class="o">=</span> <span class="n">y_size</span> <span class="o">/</span> <span class="p">(</span><span class="n">npix_y</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
338       
339        <span class="c"># store x and y axis bin centers in q space</span>
340        <span class="n">x_bins</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">arange</span><span class="p">(</span><span class="n">xmin</span><span class="p">,</span> <span class="n">xmax</span> <span class="o">+</span> <span class="n">xstep</span><span class="p">,</span> <span class="n">xstep</span><span class="p">)</span>
341        <span class="n">y_bins</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">arange</span><span class="p">(</span><span class="n">ymin</span><span class="p">,</span> <span class="n">ymax</span> <span class="o">+</span> <span class="n">ystep</span><span class="p">,</span> <span class="n">ystep</span><span class="p">)</span>
342       
343        <span class="c"># get the limits of q values</span>
344        <span class="n">xmin</span> <span class="o">=</span> <span class="n">xmin</span> <span class="o">-</span> <span class="n">xstep</span> <span class="o">/</span> <span class="mi">2</span>
345        <span class="n">xmax</span> <span class="o">=</span> <span class="n">xmax</span> <span class="o">+</span> <span class="n">xstep</span> <span class="o">/</span> <span class="mi">2</span>
346        <span class="n">ymin</span> <span class="o">=</span> <span class="n">ymin</span> <span class="o">-</span> <span class="n">ystep</span> <span class="o">/</span> <span class="mi">2</span>
347        <span class="n">ymax</span> <span class="o">=</span> <span class="n">ymax</span> <span class="o">+</span> <span class="n">ystep</span> <span class="o">/</span> <span class="mi">2</span>
348       
349        <span class="c">#Store data in outputs</span>
350        <span class="c">#TODO: Check the lengths</span>
351        <span class="n">output</span><span class="o">.</span><span class="n">data</span> <span class="o">=</span> <span class="n">data</span>
352        <span class="k">if</span> <span class="p">(</span><span class="n">err_data</span> <span class="o">==</span> <span class="mi">1</span><span class="p">)</span><span class="o">.</span><span class="n">all</span><span class="p">():</span>
353            <span class="n">output</span><span class="o">.</span><span class="n">err_data</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">sqrt</span><span class="p">(</span><span class="n">numpy</span><span class="o">.</span><span class="n">abs</span><span class="p">(</span><span class="n">data</span><span class="p">))</span>
354            <span class="n">output</span><span class="o">.</span><span class="n">err_data</span><span class="p">[</span><span class="n">output</span><span class="o">.</span><span class="n">err_data</span> <span class="o">==</span> <span class="mf">0.0</span><span class="p">]</span> <span class="o">=</span> <span class="mf">1.0</span>
355        <span class="k">else</span><span class="p">:</span>
356            <span class="n">output</span><span class="o">.</span><span class="n">err_data</span> <span class="o">=</span> <span class="n">err_data</span>
357           
358        <span class="n">output</span><span class="o">.</span><span class="n">qx_data</span> <span class="o">=</span> <span class="n">qx_data</span>
359        <span class="n">output</span><span class="o">.</span><span class="n">qy_data</span> <span class="o">=</span> <span class="n">qy_data</span>
360        <span class="n">output</span><span class="o">.</span><span class="n">q_data</span> <span class="o">=</span> <span class="n">q_data</span>
361        <span class="n">output</span><span class="o">.</span><span class="n">mask</span> <span class="o">=</span> <span class="n">mask</span>
362       
363        <span class="n">output</span><span class="o">.</span><span class="n">x_bins</span> <span class="o">=</span> <span class="n">x_bins</span>
364        <span class="n">output</span><span class="o">.</span><span class="n">y_bins</span> <span class="o">=</span> <span class="n">y_bins</span>
365               
366        <span class="n">output</span><span class="o">.</span><span class="n">xmin</span> <span class="o">=</span> <span class="n">xmin</span>
367        <span class="n">output</span><span class="o">.</span><span class="n">xmax</span> <span class="o">=</span> <span class="n">xmax</span>
368        <span class="n">output</span><span class="o">.</span><span class="n">ymin</span> <span class="o">=</span> <span class="n">ymin</span>
369        <span class="n">output</span><span class="o">.</span><span class="n">ymax</span> <span class="o">=</span> <span class="n">ymax</span>
370       
371        <span class="n">output</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">wavelength</span> <span class="o">=</span> <span class="n">wavelength</span>
372       
373        <span class="c"># Store pixel size in mm</span>
374        <span class="n">detector</span><span class="o">.</span><span class="n">pixel_size</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="n">pixel_x</span>
375        <span class="n">detector</span><span class="o">.</span><span class="n">pixel_size</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="n">pixel_y</span>
376       
377        <span class="c"># Store the sample to detector distance</span>
378        <span class="n">detector</span><span class="o">.</span><span class="n">distance</span> <span class="o">=</span> <span class="n">distance</span>
379       
380        <span class="c"># optional data: if all of dq data == 0, do not pass to output</span>
381        <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">dqx_data</span><span class="p">)</span> <span class="o">==</span> <span class="nb">len</span><span class="p">(</span><span class="n">qx_data</span><span class="p">)</span> <span class="ow">and</span> <span class="n">dqx_data</span><span class="o">.</span><span class="n">any</span><span class="p">()</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">:</span>
382            <span class="c"># if no dqx_data, do not pass dqy_data.</span>
383            <span class="c">#(1 axis dq is not supported yet).</span>
384            <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">dqy_data</span><span class="p">)</span> <span class="o">==</span> <span class="nb">len</span><span class="p">(</span><span class="n">qy_data</span><span class="p">)</span> <span class="ow">and</span> <span class="n">dqy_data</span><span class="o">.</span><span class="n">any</span><span class="p">()</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">:</span>
385                <span class="c"># Currently we do not support dq parr, perp.</span>
386                <span class="c"># tranfer the comp. to cartesian coord. for newer version.</span>
387                <span class="k">if</span> <span class="n">ver</span> <span class="o">!=</span> <span class="mi">1</span><span class="p">:</span>
388                    <span class="n">diag</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">sqrt</span><span class="p">(</span><span class="n">qx_data</span> <span class="o">*</span> <span class="n">qx_data</span> <span class="o">+</span> <span class="n">qy_data</span> <span class="o">*</span> <span class="n">qy_data</span><span class="p">)</span>
389                    <span class="n">cos_th</span> <span class="o">=</span> <span class="n">qx_data</span> <span class="o">/</span> <span class="n">diag</span>
390                    <span class="n">sin_th</span> <span class="o">=</span> <span class="n">qy_data</span> <span class="o">/</span> <span class="n">diag</span>
391                    <span class="n">output</span><span class="o">.</span><span class="n">dqx_data</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">sqrt</span><span class="p">((</span><span class="n">dqx_data</span> <span class="o">*</span> <span class="n">cos_th</span><span class="p">)</span> <span class="o">*</span> \
392                                                 <span class="p">(</span><span class="n">dqx_data</span> <span class="o">*</span> <span class="n">cos_th</span><span class="p">)</span> \
393                                                 <span class="o">+</span> <span class="p">(</span><span class="n">dqy_data</span> <span class="o">*</span> <span class="n">sin_th</span><span class="p">)</span> <span class="o">*</span> \
394                                                  <span class="p">(</span><span class="n">dqy_data</span> <span class="o">*</span> <span class="n">sin_th</span><span class="p">))</span>
395                    <span class="n">output</span><span class="o">.</span><span class="n">dqy_data</span> <span class="o">=</span> <span class="n">numpy</span><span class="o">.</span><span class="n">sqrt</span><span class="p">((</span><span class="n">dqx_data</span> <span class="o">*</span> <span class="n">sin_th</span><span class="p">)</span> <span class="o">*</span> \
396                                                 <span class="p">(</span><span class="n">dqx_data</span> <span class="o">*</span> <span class="n">sin_th</span><span class="p">)</span> \
397                                                 <span class="o">+</span> <span class="p">(</span><span class="n">dqy_data</span> <span class="o">*</span> <span class="n">cos_th</span><span class="p">)</span> <span class="o">*</span> \
398                                                  <span class="p">(</span><span class="n">dqy_data</span> <span class="o">*</span> <span class="n">cos_th</span><span class="p">))</span>
399                <span class="k">else</span><span class="p">:</span>
400                    <span class="n">output</span><span class="o">.</span><span class="n">dqx_data</span> <span class="o">=</span> <span class="n">dqx_data</span>
401                    <span class="n">output</span><span class="o">.</span><span class="n">dqy_data</span> <span class="o">=</span> <span class="n">dqy_data</span>
402
403        <span class="c"># Units of axes</span>
404        <span class="k">if</span> <span class="n">data_conv_q</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
405            <span class="n">output</span><span class="o">.</span><span class="n">xaxis</span><span class="p">(</span><span class="s">&quot;</span><span class="se">\\</span><span class="s">rm{Q_{x}}&quot;</span><span class="p">,</span> <span class="n">output</span><span class="o">.</span><span class="n">Q_unit</span><span class="p">)</span>
406            <span class="n">output</span><span class="o">.</span><span class="n">yaxis</span><span class="p">(</span><span class="s">&quot;</span><span class="se">\\</span><span class="s">rm{Q_{y}}&quot;</span><span class="p">,</span> <span class="n">output</span><span class="o">.</span><span class="n">Q_unit</span><span class="p">)</span>
407        <span class="k">else</span><span class="p">:</span>
408            <span class="n">output</span><span class="o">.</span><span class="n">xaxis</span><span class="p">(</span><span class="s">&quot;</span><span class="se">\\</span><span class="s">rm{Q_{x}}&quot;</span><span class="p">,</span> <span class="s">&#39;A^{-1}&#39;</span><span class="p">)</span>
409            <span class="n">output</span><span class="o">.</span><span class="n">yaxis</span><span class="p">(</span><span class="s">&quot;</span><span class="se">\\</span><span class="s">rm{Q_{y}}&quot;</span><span class="p">,</span> <span class="s">&#39;A^{-1}&#39;</span><span class="p">)</span>
410        <span class="k">if</span> <span class="n">data_conv_i</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
411            <span class="n">output</span><span class="o">.</span><span class="n">zaxis</span><span class="p">(</span><span class="s">&quot;</span><span class="se">\\</span><span class="s">rm{Intensity}&quot;</span><span class="p">,</span> <span class="n">output</span><span class="o">.</span><span class="n">I_unit</span><span class="p">)</span>
412        <span class="k">else</span><span class="p">:</span>
413            <span class="n">output</span><span class="o">.</span><span class="n">zaxis</span><span class="p">(</span><span class="s">&quot;</span><span class="se">\\</span><span class="s">rm{Intensity}&quot;</span><span class="p">,</span> <span class="s">&quot;cm^{-1}&quot;</span><span class="p">)</span>
414   
415        <span class="c"># Store loading process information</span>
416        <span class="n">output</span><span class="o">.</span><span class="n">meta_data</span><span class="p">[</span><span class="s">&#39;loader&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">type_name</span>
417
418        <span class="k">return</span> <span class="n">output</span></div></div>
419</pre></div>
420
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