Daniel Weschke
4fc4903dc2
inside the data module rename read to read_columns add add new read function to read the whole file as string. add print_list function to print one element per line. add unique_list and unique_list_hashable to reduce the list into a unique list with same order. add find_last, str_between, str_to_list functions. inside the mathematics module for vector add normalized creating a new object (normalize will change the object), isclose and iscloseto, change ang to round internal number. for matrix improve slicing and add transposed creating a new object (transpose will change object). inside the function module add b_spline_basis, b_spline_curve_with_knots and b_spline_knots functions. add sample_hal_open and sample_half_open_seq. add circle and ellipse. inside the geometry module change CS init from using lists to Directions and add new constructor CS.init_xzy using lists. rename Wireframe to Polyline. add classes B_spline_curve_with_knots, Ellipse, ArcCircle, ArcEllipse, ArcBSplineCurveWithKnots. add function sample_half_open to create a list of Points. inside the geometry_plot_pylab module change the help text. add step_and data data_step_std module to read a step file to list and draw the content. add helper module with context manager and decorator timeit to meassure the time for a section or function. add example for b_spline function.
445 lines
23 KiB
HTML
445 lines
23 KiB
HTML
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<html xmlns="http://www.w3.org/1999/xhtml">
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<title>pylib.data module — pylib 2019.12.21 documentation</title>
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<div class="body" role="main">
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<div class="section" id="module-pylib.data">
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<span id="pylib-data-module"></span><h1>pylib.data module<a class="headerlink" href="#module-pylib.data" title="Permalink to this headline">¶</a></h1>
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<p>Read and write data to or from file and manipulate data
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structures.</p>
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<dl class="field-list simple">
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<dt class="field-odd">Date</dt>
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<dd class="field-odd"><p>2019-12-28</p>
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</dd>
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</dl>
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<span class="target" id="module-data"></span><dl class="function">
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<dt id="pylib.data.find_last">
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<code class="sig-name descname">find_last</code><span class="sig-paren">(</span><em class="sig-param">sequence</em>, <em class="sig-param">pattern</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#find_last"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.find_last" title="Permalink to this definition">¶</a></dt>
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<dd><p>Find last last occurance in sequence (text)</p>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters</dt>
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<dd class="field-odd"><ul class="simple">
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<li><p><strong>sequence</strong> (<em>str</em>) – text to search in</p></li>
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<li><p><strong>pattern</strong> (<em>str</em>) – search pattern</p></li>
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</ul>
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</dd>
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<dt class="field-even">Returns</dt>
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<dd class="field-even"><p>index (-1 if pattern not in sequence)</p>
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</dd>
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<dt class="field-odd">Return type</dt>
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<dd class="field-odd"><p>int</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="function">
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<dt id="pylib.data.fold_list">
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<code class="sig-name descname">fold_list</code><span class="sig-paren">(</span><em class="sig-param">lst</em>, <em class="sig-param">n</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#fold_list"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.fold_list" title="Permalink to this definition">¶</a></dt>
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<dd><p>Convert one-dimensional kx1 array (list) to two-dimensional mxn
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array. m = k / n</p>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters</dt>
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<dd class="field-odd"><ul class="simple">
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<li><p><strong>lst</strong> (<em>list</em>) – list to convert</p></li>
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<li><p><strong>n</strong> (<em>int</em>) – length of the second dimenson</p></li>
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</ul>
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</dd>
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<dt class="field-even">Returns</dt>
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<dd class="field-even"><p>two-dimensional array (list of lists)</p>
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</dd>
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<dt class="field-odd">Return type</dt>
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<dd class="field-odd"><p>list</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="function">
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<dt id="pylib.data.get_id">
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<code class="sig-name descname">get_id</code><span class="sig-paren">(</span><em class="sig-param">ids</em>, <em class="sig-param">uide</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#get_id"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.get_id" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get full id from unique id ending.</p>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters</dt>
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<dd class="field-odd"><ul class="simple">
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<li><p><strong>ids</strong> (<em>list</em>) – ids</p></li>
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<li><p><strong>uide</strong> (<em>str</em>) – unique id ending</p></li>
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</ul>
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</dd>
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<dt class="field-even">Returns</dt>
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<dd class="field-even"><p>full id</p>
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</dd>
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<dt class="field-odd">Return type</dt>
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<dd class="field-odd"><p>str or int</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="function">
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<dt id="pylib.data.issequence">
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<code class="sig-name descname">issequence</code><span class="sig-paren">(</span><em class="sig-param">obj</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#issequence"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.issequence" title="Permalink to this definition">¶</a></dt>
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<dd><p>True for tuple, list, str
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False for int, dict, set</p>
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<dl class="field-list simple">
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<dt class="field-odd">Example</dt>
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<dd class="field-odd"><p></p></dd>
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</dl>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">issequence</span><span class="p">(())</span>
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<span class="go">True</span>
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<span class="gp">>>> </span><span class="n">issequence</span><span class="p">((</span><span class="mi">3</span><span class="p">,</span> <span class="p">))</span>
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<span class="go">True</span>
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<span class="gp">>>> </span><span class="n">issequence</span><span class="p">([])</span>
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<span class="go">True</span>
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<span class="gp">>>> </span><span class="n">issequence</span><span class="p">([</span><span class="mi">1</span><span class="p">])</span>
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<span class="go">True</span>
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<span class="gp">>>> </span><span class="n">issequence</span><span class="p">([</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">])</span>
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<span class="go">True</span>
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<span class="gp">>>> </span><span class="n">issequence</span><span class="p">(</span><span class="s1">''</span><span class="p">)</span>
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<span class="go">True</span>
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</pre></div>
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</div>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">issequence</span><span class="p">((</span><span class="mi">3</span><span class="p">))</span>
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<span class="go">False</span>
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<span class="gp">>>> </span><span class="n">issequence</span><span class="p">({})</span>
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<span class="go">False</span>
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<span class="gp">>>> </span><span class="n">issequence</span><span class="p">(</span><span class="nb">set</span><span class="p">())</span>
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<span class="go">False</span>
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</pre></div>
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</div>
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</dd></dl>
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<dl class="function">
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<dt id="pylib.data.load">
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<code class="sig-name descname">load</code><span class="sig-paren">(</span><em class="sig-param">file_name</em>, <em class="sig-param">default=None</em>, <em class="sig-param">verbose=False</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#load"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.load" title="Permalink to this definition">¶</a></dt>
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<dd><p>Load stored program objects from binary file.</p>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters</dt>
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<dd class="field-odd"><ul class="simple">
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<li><p><strong>file_name</strong> (<em>str</em>) – file to load</p></li>
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<li><p><strong>default</strong> (<em>object</em>) – return object if data loading fails</p></li>
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<li><p><strong>verbose</strong> (<em>bool</em>) – verbose information (default = False)</p></li>
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</ul>
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</dd>
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<dt class="field-even">Returns</dt>
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<dd class="field-even"><p>loaded data</p>
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</dd>
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<dt class="field-odd">Return type</dt>
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<dd class="field-odd"><p>object</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="function">
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<dt id="pylib.data.print_list">
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<code class="sig-name descname">print_list</code><span class="sig-paren">(</span><em class="sig-param">lst</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#print_list"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.print_list" title="Permalink to this definition">¶</a></dt>
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<dd><p>Print list, one list element per line.</p>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters</dt>
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<dd class="field-odd"><p><strong>lst</strong> (<em>list</em>) – list to print</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="function">
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<dt id="pylib.data.read">
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<code class="sig-name descname">read</code><span class="sig-paren">(</span><em class="sig-param">file_name</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#read"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.read" title="Permalink to this definition">¶</a></dt>
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<dd><p>Read ascii data file.</p>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters</dt>
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<dd class="field-odd"><p><strong>filename</strong> (<em>str</em>) – file to read</p>
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</dd>
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<dt class="field-even">Returns</dt>
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<dd class="field-even"><p>file content</p>
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</dd>
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<dt class="field-odd">Return type</dt>
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<dd class="field-odd"><p>str</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="function">
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<dt id="pylib.data.read_columns">
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<code class="sig-name descname">read_columns</code><span class="sig-paren">(</span><em class="sig-param">file_name</em>, <em class="sig-param">x_column</em>, <em class="sig-param">y_column</em>, <em class="sig-param">default=None</em>, <em class="sig-param">verbose=False</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#read_columns"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.read_columns" title="Permalink to this definition">¶</a></dt>
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<dd><p>Read ascii data file.</p>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters</dt>
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<dd class="field-odd"><ul class="simple">
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<li><p><strong>file_name</strong> (<em>str</em>) – file to read</p></li>
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<li><p><strong>x_column</strong> (<em>int</em>) – column index for the x data (first column is 0)</p></li>
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<li><p><strong>y_column</strong> (<em>int</em>) – column index for the y data (first column is 0)</p></li>
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<li><p><strong>default</strong> (<em>object</em>) – return object if data loading fails</p></li>
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<li><p><strong>verbose</strong> (<em>bool</em>) – verbose information (default = False)</p></li>
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</ul>
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</dd>
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<dt class="field-even">Returns</dt>
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<dd class="field-even"><p>x and y</p>
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</dd>
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<dt class="field-odd">Return type</dt>
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<dd class="field-odd"><p>tuple(list, list)</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="function">
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<dt id="pylib.data.seq">
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<code class="sig-name descname">seq</code><span class="sig-paren">(</span><em class="sig-param">start</em>, <em class="sig-param">stop=None</em>, <em class="sig-param">step=1</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#seq"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.seq" title="Permalink to this definition">¶</a></dt>
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<dd><p>Create an arithmetic bounded sequence.</p>
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<p>The sequence is one of the following;</p>
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<ul class="simple">
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<li><p>empty <span class="math notranslate nohighlight">\(\{\}=\emptyset\)</span>, if start and stop are the same</p></li>
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<li><p>degenerate <span class="math notranslate nohighlight">\(\{a\}\)</span>, if the sequence has only one element.</p></li>
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<li><p>left-close and right-open <span class="math notranslate nohighlight">\([a, b)\)</span></p></li>
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</ul>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters</dt>
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<dd class="field-odd"><ul class="simple">
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<li><p><strong>start</strong> (<em>int</em><em> or </em><em>float</em>) – start of the sequence, the lower bound. If only start
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is given than it is interpreted as stop and start will be 0.</p></li>
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<li><p><strong>stop</strong> (<em>int</em><em> or </em><em>float</em>) – stop of sequence, the upper bound.</p></li>
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<li><p><strong>step</strong> (<em>int</em><em> or </em><em>float</em>) – step size, the common difference (constant difference
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between consecutive terms).</p></li>
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</ul>
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</dd>
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<dt class="field-even">Returns</dt>
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<dd class="field-even"><p>arithmetic bounded sequence</p>
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</dd>
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<dt class="field-odd">Return type</dt>
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<dd class="field-odd"><p>list</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="function">
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<dt id="pylib.data.store">
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<code class="sig-name descname">store</code><span class="sig-paren">(</span><em class="sig-param">file_name</em>, <em class="sig-param">object_data</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#store"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.store" title="Permalink to this definition">¶</a></dt>
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<dd><p>Store program objects to binary file.</p>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters</dt>
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<dd class="field-odd"><ul class="simple">
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<li><p><strong>file_name</strong> (<em>str</em>) – file to store</p></li>
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<li><p><strong>object_data</strong> (<em>object</em>) – data to store</p></li>
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</ul>
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</dd>
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</dl>
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</dd></dl>
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<dl class="function">
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<dt id="pylib.data.str_between">
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<code class="sig-name descname">str_between</code><span class="sig-paren">(</span><em class="sig-param">text</em>, <em class="sig-param">left</em>, <em class="sig-param">right</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#str_between"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.str_between" title="Permalink to this definition">¶</a></dt>
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<dd><p>Get text between two pattern.</p>
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<p>Text can be multi-line.</p>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters</dt>
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<dd class="field-odd"><ul class="simple">
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<li><p><strong>text</strong> (<em>str</em>) – text to search in</p></li>
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<li><p><strong>left</strong> (<em>str</em>) – left pattern</p></li>
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<li><p><strong>right</strong> (<em>str</em>) – right pattern</p></li>
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</ul>
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</dd>
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<dt class="field-even">Returns</dt>
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<dd class="field-even"><p>text between the left and right pattern</p>
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</dd>
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<dt class="field-odd">Return type</dt>
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<dd class="field-odd"><p>str</p>
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</dd>
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</dl>
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</dd></dl>
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<dl class="function">
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<dt id="pylib.data.str_to_list">
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<code class="sig-name descname">str_to_list</code><span class="sig-paren">(</span><em class="sig-param">string</em>, <em class="sig-param">delimiter=';\n'</em>, <em class="sig-param">newline_replacement=''</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#str_to_list"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.str_to_list" title="Permalink to this definition">¶</a></dt>
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<dd><p>Converts a string with block information into a list.</p>
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<p>This function un-wraps multi-line block information into one line.</p>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters</dt>
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<dd class="field-odd"><ul class="simple">
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<li><p><strong>string</strong> (<em>str</em>) – string with block information</p></li>
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<li><p><strong>delimiter</strong> (<em>str</em>) – block delimiter (default = ‘;n’). This will be
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removed from the resulting list.</p></li>
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<li><p><strong>newline_replacement</strong> (<em>str</em>) – block lines replacement (default = ‘’)</p></li>
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</ul>
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</dd>
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<dt class="field-even">Returns</dt>
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<dd class="field-even"><p>list of block information</p>
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</dd>
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<dt class="field-odd">Return type</dt>
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<dd class="field-odd"><p>list</p>
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</dd>
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</dl>
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<div class="admonition note">
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<p class="admonition-title">Note</p>
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<p>Every line is left striped. Empty line are ignored.</p>
|
||
</div>
|
||
<dl class="field-list simple">
|
||
<dt class="field-odd">Example</dt>
|
||
<dd class="field-odd"><p></p></dd>
|
||
</dl>
|
||
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">before</span> <span class="p">(</span><span class="n">string</span><span class="p">):</span>
|
||
<span class="n">FILE_DESCRIPTION</span><span class="p">((</span><span class="s1">'Open CASCADE Model'</span><span class="p">),</span><span class="s1">'2;1'</span><span class="p">);</span>
|
||
<span class="n">FILE_NAME</span><span class="p">(</span><span class="s1">'Open CASCADE Shape Model'</span><span class="p">,</span><span class="s1">'2019-10-14T14:32:20'</span><span class="p">,(</span><span class="s1">'Author'</span><span class="p">),(</span>
|
||
<span class="s1">'Open CASCADE'</span><span class="p">),</span><span class="s1">'Open CASCADE STEP processor 7.1'</span><span class="p">,</span><span class="s1">'Open CASCADE 7.1'</span>
|
||
<span class="p">,</span><span class="s1">'Unknown'</span><span class="p">);</span>
|
||
<span class="n">FILE_SCHEMA</span><span class="p">((</span><span class="s1">'AUTOMOTIVE_DESIGN { 1 0 10303 214 1 1 1 1 }'</span><span class="p">));</span>
|
||
|
||
<span class="n">after</span> <span class="p">(</span><span class="nb">list</span> <span class="n">elements</span> <span class="n">one</span> <span class="n">per</span> <span class="n">line</span><span class="p">):</span>
|
||
<span class="n">FILE_DESCRIPTION</span><span class="p">((</span><span class="s1">'Open CASCADE Model'</span><span class="p">),</span><span class="s1">'2;1'</span><span class="p">)</span>
|
||
<span class="n">FILE_NAME</span><span class="p">(</span><span class="s1">'Open CASCADE Shape Model'</span><span class="p">,</span><span class="s1">'2019-10-14T14:32:20'</span><span class="p">,(</span><span class="s1">'Author'</span><span class="p">),(</span><span class="s1">'Open CASCADE'</span><span class="p">),</span><span class="s1">'Open CASCADE STEP processor 7.1'</span><span class="p">,</span><span class="s1">'Open CASCADE 7.1'</span><span class="p">,</span><span class="s1">'Unknown'</span><span class="p">)</span>
|
||
<span class="n">FILE_SCHEMA</span><span class="p">((</span><span class="s1">'AUTOMOTIVE_DESIGN { 1 0 10303 214 1 1 1 1 }'</span><span class="p">))</span>
|
||
</pre></div>
|
||
</div>
|
||
</dd></dl>
|
||
|
||
<dl class="function">
|
||
<dt id="pylib.data.unique_ending">
|
||
<code class="sig-name descname">unique_ending</code><span class="sig-paren">(</span><em class="sig-param">ids</em>, <em class="sig-param">n=1</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#unique_ending"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.unique_ending" title="Permalink to this definition">¶</a></dt>
|
||
<dd><p>From id list get list with unique ending.</p>
|
||
<dl class="field-list simple">
|
||
<dt class="field-odd">Parameters</dt>
|
||
<dd class="field-odd"><ul class="simple">
|
||
<li><p><strong>ids</strong> (<em>list</em>) – ids</p></li>
|
||
<li><p><strong>n</strong> (<em>int</em>) – minumum chars or ints</p></li>
|
||
</ul>
|
||
</dd>
|
||
<dt class="field-even">Returns</dt>
|
||
<dd class="field-even"><p>unique ending of ids</p>
|
||
</dd>
|
||
<dt class="field-odd">Return type</dt>
|
||
<dd class="field-odd"><p>list</p>
|
||
</dd>
|
||
</dl>
|
||
</dd></dl>
|
||
|
||
<dl class="function">
|
||
<dt id="pylib.data.unique_list">
|
||
<code class="sig-name descname">unique_list</code><span class="sig-paren">(</span><em class="sig-param">sequence</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#unique_list"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.unique_list" title="Permalink to this definition">¶</a></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="function">
|
||
<dt id="pylib.data.unique_list_hashable">
|
||
<code class="sig-name descname">unique_list_hashable</code><span class="sig-paren">(</span><em class="sig-param">sequence</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#unique_list_hashable"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.unique_list_hashable" title="Permalink to this definition">¶</a></dt>
|
||
<dd><p>faster using set() but elements of the sequence must be hashable.
|
||
unhashable types: ‘list’</p>
|
||
</dd></dl>
|
||
|
||
<dl class="function">
|
||
<dt id="pylib.data.write">
|
||
<code class="sig-name descname">write</code><span class="sig-paren">(</span><em class="sig-param">file_name</em>, <em class="sig-param">data</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/pylib/data.html#write"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pylib.data.write" title="Permalink to this definition">¶</a></dt>
|
||
<dd><p>Write ascii file.</p>
|
||
<dl class="field-list simple">
|
||
<dt class="field-odd">Parameters</dt>
|
||
<dd class="field-odd"><ul class="simple">
|
||
<li><p><strong>file_name</strong> (<em>str</em>) – file to write</p></li>
|
||
<li><p><strong>data</strong> (<em>str</em>) – data to write</p></li>
|
||
</ul>
|
||
</dd>
|
||
</dl>
|
||
</dd></dl>
|
||
|
||
</div>
|
||
|
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|
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|
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