Changes in / [d5e650d:d368d21] in sasmodels


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  • sasmodels/convert.py

    r5054e80 r03582f9  
    1 """ 
    2 Convert models to and from sasview. 
    3 """ 
    4 import warnings 
    5  
    6 # List of models which SasView versions don't contain the explicit 'scale' argument. 
    7 # When converting such a model, please update this list. 
    8 MODELS_WITHOUT_SCALE = [ 
    9     'teubner_strey', 
    10     'broad_peak', 
    11     'two_lorentzian', 
    12     'gel_fit', 
    13     'gauss_lorentz_gel', 
    14     'be_polyelectrolyte', 
    15     'correlation_length', 
    16 ] 
    17  
    18 # List of models which SasView versions don't contain the explicit 'background' argument. 
    19 # When converting such a model, please update this list. 
    20 MODELS_WITHOUT_BACKGROUND = [ 
    21     'guinier', 
    22 ] 
    23  
    24 PD_DOT = [ 
    25     ("", ""), 
    26     ("_pd", ".width"), 
    27     ("_pd_n", ".npts"), 
    28     ("_pd_nsigma", ".nsigmas"), 
    29     ("_pd_type", ".type"), 
    30     ] 
    31 def _convert_pars(pars, mapping): 
    32     """ 
    33     Rename the parameters and any associated polydispersity attributes. 
    34     """ 
    35     newpars = pars.copy() 
    36     for new, old in mapping.items(): 
    37         if old == new: continue 
    38         for pd, dot in PD_DOT: 
    39             if old+dot in newpars: 
    40                 if new is not None: 
    41                     newpars[new+pd] = pars[old+dot] 
    42                 del newpars[old+dot] 
    43     return newpars 
    44  
    45 def _rescale_sld(pars): 
    46     """ 
    47     rescale all sld parameters in the new model definition by 1e6 so the 
    48     numbers are nicer.  Relies on the fact that all sld parameters in the 
    49     new model definition end with sld. 
    50     """ 
    51     return dict((p, (v*1e6 if p.endswith('sld') else v)) 
    52                 for p, v in pars.items()) 
    53  
    54 def convert_model(name, pars): 
    55     """ 
    56     Convert model from old style parameter names to new style. 
    57     """ 
    58     _, _ = name, pars # lint 
    59     raise NotImplementedError 
    60     # need to load all new models in order to determine old=>new 
    61     # model name mapping 
    62  
    63 def _unscale_sld(pars): 
    64     """ 
    65     rescale all sld parameters in the new model definition by 1e6 so the 
    66     numbers are nicer.  Relies on the fact that all sld parameters in the 
    67     new model definition end with sld. 
    68     """ 
    69     return dict((p, (v*1e-6 if p.endswith('sld') else v)) 
    70                 for p, v in pars.items()) 
    71  
    72 def _remove_pd(pars, key, name): 
    73     """ 
    74     Remove polydispersity from the parameter list. 
    75  
    76     Note: operates in place 
    77     """ 
    78     # Bumps style parameter names 
    79     pd = pars.pop(key+".width", 0.0) 
    80     pd_n = pars.pop(key+".npts", 0) 
    81     if pd != 0.0 and pd_n != 0: 
    82         warnings.warn("parameter %s not polydisperse in sasview %s"%(key, name)) 
    83     pars.pop(key+".nsigmas", None) 
    84     pars.pop(key+".type", None) 
    85     return pars 
    86  
    87 def _revert_pars(pars, mapping): 
    88     """ 
    89     Rename the parameters and any associated polydispersity attributes. 
    90     """ 
    91     newpars = pars.copy() 
    92  
    93     for new, old in mapping.items(): 
    94         for pd, dot in PD_DOT: 
    95             if old and old+pd == new+dot: 
    96                 continue 
    97             if new+pd in newpars: 
    98                 if old is not None: 
    99                     newpars[old+dot] = pars[new+pd] 
    100                 del newpars[new+pd] 
    101     for k in list(newpars.keys()): 
    102         for pd, dot in PD_DOT[1:]:  # skip "" => "" 
    103             if k.endswith(pd): 
    104                 newpars[k[:-len(pd)]+dot] = newpars[k] 
    105                 del newpars[k] 
    106     return newpars 
    107  
    108 def revert_model(model_definition, pars): 
    109     """ 
    110     Convert model from new style parameter names to old style. 
    111     """ 
    112     mapping = model_definition.oldpars 
    113     oldname = model_definition.oldname 
    114     oldpars = _revert_pars(_unscale_sld(pars), mapping) 
    115  
    116     # Note: update compare.constrain_pars to match 
    117     name = model_definition.name 
    118     if name in MODELS_WITHOUT_SCALE: 
    119         if oldpars.pop('scale', 1.0) != 1.0: 
    120             warnings.warn("parameter scale not used in sasview %s"%name) 
    121     elif name in MODELS_WITHOUT_BACKGROUND: 
    122         if oldpars.pop('background', 0.0) != 0.0: 
    123             warnings.warn("parameter background not used in sasview %s"%name) 
    124     elif getattr(model_definition, 'category', None) == 'structure-factor': 
    125         if oldpars.pop('scale', 1.0) != 1.0: 
    126             warnings.warn("parameter scale not used in sasview %s"%name) 
    127         if oldpars.pop('background', 0.0) != 0.0: 
    128             warnings.warn("parameter background not used in sasview %s"%name) 
    129     elif name == 'pearl_necklace': 
    130         _remove_pd(oldpars, 'num_pearls', name) 
    131         _remove_pd(oldpars, 'thick_string', name) 
    132     elif name == 'rpa': 
    133         # convert scattering lengths from femtometers to centimeters 
    134         for p in "La", "Lb", "Lc", "Ld": 
    135             if p in oldpars: oldpars[p] *= 1e-13 
    136  
    137     return oldname, oldpars 
    138  
    139 def constrain_new_to_old(model_definition, pars): 
    140     """ 
    141     Restrict parameter values to those that will match sasview. 
    142     """ 
    143     # Note: update convert.revert_model to match 
    144     name = model_definition.name 
    145     if name in MODELS_WITHOUT_SCALE: 
    146         pars['scale'] = 1 
    147     elif name in MODELS_WITHOUT_BACKGROUND: 
    148         pars['background'] = 0 
    149     elif name == 'pearl_necklace': 
    150         pars['string_thickness_pd_n'] = 0 
    151         pars['number_of_pearls_pd_n'] = 0 
    152     elif name == 'rpa': 
    153         pars['case_num'] = int(pars['case_num']) 
    154     elif getattr(model_definition, 'category', None) == 'structure-factor': 
    155         pars['scale'], pars['background'] = 1, 0 
    156  
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     425      <tr> 
     426        <td id="L5" class="blob-num js-line-number" data-line-number="5"></td> 
     427        <td id="LC5" class="blob-code blob-code-inner js-file-line"> 
     428</td> 
     429      </tr> 
     430      <tr> 
     431        <td id="L6" class="blob-num js-line-number" data-line-number="6"></td> 
     432        <td id="LC6" class="blob-code blob-code-inner js-file-line"><span class="pl-c"># List of models which SasView versions don&#39;t contain the explicit &#39;scale&#39; argument.</span></td> 
     433      </tr> 
     434      <tr> 
     435        <td id="L7" class="blob-num js-line-number" data-line-number="7"></td> 
     436        <td id="LC7" class="blob-code blob-code-inner js-file-line"><span class="pl-c"># When converting such a model, please update this list.</span></td> 
     437      </tr> 
     438      <tr> 
     439        <td id="L8" class="blob-num js-line-number" data-line-number="8"></td> 
     440        <td id="LC8" class="blob-code blob-code-inner js-file-line"><span class="pl-c1">MODELS_WITHOUT_SCALE</span> <span class="pl-k">=</span> [</td> 
     441      </tr> 
     442      <tr> 
     443        <td id="L9" class="blob-num js-line-number" data-line-number="9"></td> 
     444        <td id="LC9" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&#39;</span>teubner_strey<span class="pl-pds">&#39;</span></span>,</td> 
     445      </tr> 
     446      <tr> 
     447        <td id="L10" class="blob-num js-line-number" data-line-number="10"></td> 
     448        <td id="LC10" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&#39;</span>broad_peak<span class="pl-pds">&#39;</span></span>,</td> 
     449      </tr> 
     450      <tr> 
     451        <td id="L11" class="blob-num js-line-number" data-line-number="11"></td> 
     452        <td id="LC11" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&#39;</span>two_lorentzian<span class="pl-pds">&#39;</span></span>,</td> 
     453      </tr> 
     454      <tr> 
     455        <td id="L12" class="blob-num js-line-number" data-line-number="12"></td> 
     456        <td id="LC12" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&#39;</span>gel_fit<span class="pl-pds">&#39;</span></span>,</td> 
     457      </tr> 
     458      <tr> 
     459        <td id="L13" class="blob-num js-line-number" data-line-number="13"></td> 
     460        <td id="LC13" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&#39;</span>gauss_lorentz_gel<span class="pl-pds">&#39;</span></span>,</td> 
     461      </tr> 
     462      <tr> 
     463        <td id="L14" class="blob-num js-line-number" data-line-number="14"></td> 
     464        <td id="LC14" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&#39;</span>be_polyelectrolyte<span class="pl-pds">&#39;</span></span>,</td> 
     465      </tr> 
     466      <tr> 
     467        <td id="L15" class="blob-num js-line-number" data-line-number="15"></td> 
     468        <td id="LC15" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&#39;</span>correlation_length<span class="pl-pds">&#39;</span></span>,</td> 
     469      </tr> 
     470      <tr> 
     471        <td id="L16" class="blob-num js-line-number" data-line-number="16"></td> 
     472        <td id="LC16" class="blob-code blob-code-inner js-file-line">]</td> 
     473      </tr> 
     474      <tr> 
     475        <td id="L17" class="blob-num js-line-number" data-line-number="17"></td> 
     476        <td id="LC17" class="blob-code blob-code-inner js-file-line"> 
     477</td> 
     478      </tr> 
     479      <tr> 
     480        <td id="L18" class="blob-num js-line-number" data-line-number="18"></td> 
     481        <td id="LC18" class="blob-code blob-code-inner js-file-line"><span class="pl-c"># List of models which SasView versions don&#39;t contain the explicit &#39;background&#39; argument.</span></td> 
     482      </tr> 
     483      <tr> 
     484        <td id="L19" class="blob-num js-line-number" data-line-number="19"></td> 
     485        <td id="LC19" class="blob-code blob-code-inner js-file-line"><span class="pl-c"># When converting such a model, please update this list.</span></td> 
     486      </tr> 
     487      <tr> 
     488        <td id="L20" class="blob-num js-line-number" data-line-number="20"></td> 
     489        <td id="LC20" class="blob-code blob-code-inner js-file-line"><span class="pl-c1">MODELS_WITHOUT_BACKGROUND</span> <span class="pl-k">=</span> [</td> 
     490      </tr> 
     491      <tr> 
     492        <td id="L21" class="blob-num js-line-number" data-line-number="21"></td> 
     493        <td id="LC21" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&#39;</span>guinier<span class="pl-pds">&#39;</span></span>,</td> 
     494      </tr> 
     495      <tr> 
     496        <td id="L22" class="blob-num js-line-number" data-line-number="22"></td> 
     497        <td id="LC22" class="blob-code blob-code-inner js-file-line">]</td> 
     498      </tr> 
     499      <tr> 
     500        <td id="L23" class="blob-num js-line-number" data-line-number="23"></td> 
     501        <td id="LC23" class="blob-code blob-code-inner js-file-line"> 
     502</td> 
     503      </tr> 
     504      <tr> 
     505        <td id="L24" class="blob-num js-line-number" data-line-number="24"></td> 
     506        <td id="LC24" class="blob-code blob-code-inner js-file-line"><span class="pl-c1">PD_DOT</span> <span class="pl-k">=</span> [</td> 
     507      </tr> 
     508      <tr> 
     509        <td id="L25" class="blob-num js-line-number" data-line-number="25"></td> 
     510        <td id="LC25" class="blob-code blob-code-inner js-file-line">    (<span class="pl-s"><span class="pl-pds">&quot;</span><span class="pl-pds">&quot;</span></span>, <span class="pl-s"><span class="pl-pds">&quot;</span><span class="pl-pds">&quot;</span></span>),</td> 
     511      </tr> 
     512      <tr> 
     513        <td id="L26" class="blob-num js-line-number" data-line-number="26"></td> 
     514        <td id="LC26" class="blob-code blob-code-inner js-file-line">    (<span class="pl-s"><span class="pl-pds">&quot;</span>_pd<span class="pl-pds">&quot;</span></span>, <span class="pl-s"><span class="pl-pds">&quot;</span>.width<span class="pl-pds">&quot;</span></span>),</td> 
     515      </tr> 
     516      <tr> 
     517        <td id="L27" class="blob-num js-line-number" data-line-number="27"></td> 
     518        <td id="LC27" class="blob-code blob-code-inner js-file-line">    (<span class="pl-s"><span class="pl-pds">&quot;</span>_pd_n<span class="pl-pds">&quot;</span></span>, <span class="pl-s"><span class="pl-pds">&quot;</span>.npts<span class="pl-pds">&quot;</span></span>),</td> 
     519      </tr> 
     520      <tr> 
     521        <td id="L28" class="blob-num js-line-number" data-line-number="28"></td> 
     522        <td id="LC28" class="blob-code blob-code-inner js-file-line">    (<span class="pl-s"><span class="pl-pds">&quot;</span>_pd_nsigma<span class="pl-pds">&quot;</span></span>, <span class="pl-s"><span class="pl-pds">&quot;</span>.nsigmas<span class="pl-pds">&quot;</span></span>),</td> 
     523      </tr> 
     524      <tr> 
     525        <td id="L29" class="blob-num js-line-number" data-line-number="29"></td> 
     526        <td id="LC29" class="blob-code blob-code-inner js-file-line">    (<span class="pl-s"><span class="pl-pds">&quot;</span>_pd_type<span class="pl-pds">&quot;</span></span>, <span class="pl-s"><span class="pl-pds">&quot;</span>.type<span class="pl-pds">&quot;</span></span>),</td> 
     527      </tr> 
     528      <tr> 
     529        <td id="L30" class="blob-num js-line-number" data-line-number="30"></td> 
     530        <td id="LC30" class="blob-code blob-code-inner js-file-line">    ]</td> 
     531      </tr> 
     532      <tr> 
     533        <td id="L31" class="blob-num js-line-number" data-line-number="31"></td> 
     534        <td id="LC31" class="blob-code blob-code-inner js-file-line"><span class="pl-k">def</span> <span class="pl-en">_convert_pars</span>(<span class="pl-smi">pars</span>, <span class="pl-smi">mapping</span>):</td> 
     535      </tr> 
     536      <tr> 
     537        <td id="L32" class="blob-num js-line-number" data-line-number="32"></td> 
     538        <td id="LC32" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     539      </tr> 
     540      <tr> 
     541        <td id="L33" class="blob-num js-line-number" data-line-number="33"></td> 
     542        <td id="LC33" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    Rename the parameters and any associated polydispersity attributes.</span></td> 
     543      </tr> 
     544      <tr> 
     545        <td id="L34" class="blob-num js-line-number" data-line-number="34"></td> 
     546        <td id="LC34" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    <span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     547      </tr> 
     548      <tr> 
     549        <td id="L35" class="blob-num js-line-number" data-line-number="35"></td> 
     550        <td id="LC35" class="blob-code blob-code-inner js-file-line">    newpars <span class="pl-k">=</span> pars.copy()</td> 
     551      </tr> 
     552      <tr> 
     553        <td id="L36" class="blob-num js-line-number" data-line-number="36"></td> 
     554        <td id="LC36" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">for</span> new, old <span class="pl-k">in</span> mapping.items():</td> 
     555      </tr> 
     556      <tr> 
     557        <td id="L37" class="blob-num js-line-number" data-line-number="37"></td> 
     558        <td id="LC37" class="blob-code blob-code-inner js-file-line">        <span class="pl-k">if</span> old <span class="pl-k">==</span> new: <span class="pl-k">continue</span></td> 
     559      </tr> 
     560      <tr> 
     561        <td id="L38" class="blob-num js-line-number" data-line-number="38"></td> 
     562        <td id="LC38" class="blob-code blob-code-inner js-file-line">        <span class="pl-k">for</span> pd, dot <span class="pl-k">in</span> <span class="pl-c1">PD_DOT</span>:</td> 
     563      </tr> 
     564      <tr> 
     565        <td id="L39" class="blob-num js-line-number" data-line-number="39"></td> 
     566        <td id="LC39" class="blob-code blob-code-inner js-file-line">            <span class="pl-k">if</span> old<span class="pl-k">+</span>dot <span class="pl-k">in</span> newpars:</td> 
     567      </tr> 
     568      <tr> 
     569        <td id="L40" class="blob-num js-line-number" data-line-number="40"></td> 
     570        <td id="LC40" class="blob-code blob-code-inner js-file-line">                <span class="pl-k">if</span> new <span class="pl-k">is</span> <span class="pl-k">not</span> <span class="pl-c1">None</span>:</td> 
     571      </tr> 
     572      <tr> 
     573        <td id="L41" class="blob-num js-line-number" data-line-number="41"></td> 
     574        <td id="LC41" class="blob-code blob-code-inner js-file-line">                    newpars[new<span class="pl-k">+</span>pd] <span class="pl-k">=</span> pars[old<span class="pl-k">+</span>dot]</td> 
     575      </tr> 
     576      <tr> 
     577        <td id="L42" class="blob-num js-line-number" data-line-number="42"></td> 
     578        <td id="LC42" class="blob-code blob-code-inner js-file-line">                <span class="pl-k">del</span> newpars[old<span class="pl-k">+</span>dot]</td> 
     579      </tr> 
     580      <tr> 
     581        <td id="L43" class="blob-num js-line-number" data-line-number="43"></td> 
     582        <td id="LC43" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">return</span> newpars</td> 
     583      </tr> 
     584      <tr> 
     585        <td id="L44" class="blob-num js-line-number" data-line-number="44"></td> 
     586        <td id="LC44" class="blob-code blob-code-inner js-file-line"> 
     587</td> 
     588      </tr> 
     589      <tr> 
     590        <td id="L45" class="blob-num js-line-number" data-line-number="45"></td> 
     591        <td id="LC45" class="blob-code blob-code-inner js-file-line"><span class="pl-k">def</span> <span class="pl-en">_rescale_sld</span>(<span class="pl-smi">pars</span>):</td> 
     592      </tr> 
     593      <tr> 
     594        <td id="L46" class="blob-num js-line-number" data-line-number="46"></td> 
     595        <td id="LC46" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     596      </tr> 
     597      <tr> 
     598        <td id="L47" class="blob-num js-line-number" data-line-number="47"></td> 
     599        <td id="LC47" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    rescale all sld parameters in the new model definition by 1e6 so the</span></td> 
     600      </tr> 
     601      <tr> 
     602        <td id="L48" class="blob-num js-line-number" data-line-number="48"></td> 
     603        <td id="LC48" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    numbers are nicer.  Relies on the fact that all sld parameters in the</span></td> 
     604      </tr> 
     605      <tr> 
     606        <td id="L49" class="blob-num js-line-number" data-line-number="49"></td> 
     607        <td id="LC49" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    new model definition end with sld.</span></td> 
     608      </tr> 
     609      <tr> 
     610        <td id="L50" class="blob-num js-line-number" data-line-number="50"></td> 
     611        <td id="LC50" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    <span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     612      </tr> 
     613      <tr> 
     614        <td id="L51" class="blob-num js-line-number" data-line-number="51"></td> 
     615        <td id="LC51" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">return</span> <span class="pl-c1">dict</span>((p, (v<span class="pl-k">*</span><span class="pl-c1">1e6</span> <span class="pl-k">if</span> p.endswith(<span class="pl-s"><span class="pl-pds">&#39;</span>sld<span class="pl-pds">&#39;</span></span>) <span class="pl-k">else</span> v))</td> 
     616      </tr> 
     617      <tr> 
     618        <td id="L52" class="blob-num js-line-number" data-line-number="52"></td> 
     619        <td id="LC52" class="blob-code blob-code-inner js-file-line">                <span class="pl-k">for</span> p, v <span class="pl-k">in</span> pars.items())</td> 
     620      </tr> 
     621      <tr> 
     622        <td id="L53" class="blob-num js-line-number" data-line-number="53"></td> 
     623        <td id="LC53" class="blob-code blob-code-inner js-file-line"> 
     624</td> 
     625      </tr> 
     626      <tr> 
     627        <td id="L54" class="blob-num js-line-number" data-line-number="54"></td> 
     628        <td id="LC54" class="blob-code blob-code-inner js-file-line"><span class="pl-k">def</span> <span class="pl-en">convert_model</span>(<span class="pl-smi">name</span>, <span class="pl-smi">pars</span>):</td> 
     629      </tr> 
     630      <tr> 
     631        <td id="L55" class="blob-num js-line-number" data-line-number="55"></td> 
     632        <td id="LC55" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     633      </tr> 
     634      <tr> 
     635        <td id="L56" class="blob-num js-line-number" data-line-number="56"></td> 
     636        <td id="LC56" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    Convert model from old style parameter names to new style.</span></td> 
     637      </tr> 
     638      <tr> 
     639        <td id="L57" class="blob-num js-line-number" data-line-number="57"></td> 
     640        <td id="LC57" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    <span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     641      </tr> 
     642      <tr> 
     643        <td id="L58" class="blob-num js-line-number" data-line-number="58"></td> 
     644        <td id="LC58" class="blob-code blob-code-inner js-file-line">    _, _ <span class="pl-k">=</span> name, pars <span class="pl-c"># lint</span></td> 
     645      </tr> 
     646      <tr> 
     647        <td id="L59" class="blob-num js-line-number" data-line-number="59"></td> 
     648        <td id="LC59" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">raise</span> <span class="pl-c1">NotImplementedError</span></td> 
     649      </tr> 
     650      <tr> 
     651        <td id="L60" class="blob-num js-line-number" data-line-number="60"></td> 
     652        <td id="LC60" class="blob-code blob-code-inner js-file-line">    <span class="pl-c"># need to load all new models in order to determine old=&gt;new</span></td> 
     653      </tr> 
     654      <tr> 
     655        <td id="L61" class="blob-num js-line-number" data-line-number="61"></td> 
     656        <td id="LC61" class="blob-code blob-code-inner js-file-line">    <span class="pl-c"># model name mapping</span></td> 
     657      </tr> 
     658      <tr> 
     659        <td id="L62" class="blob-num js-line-number" data-line-number="62"></td> 
     660        <td id="LC62" class="blob-code blob-code-inner js-file-line"> 
     661</td> 
     662      </tr> 
     663      <tr> 
     664        <td id="L63" class="blob-num js-line-number" data-line-number="63"></td> 
     665        <td id="LC63" class="blob-code blob-code-inner js-file-line"><span class="pl-k">def</span> <span class="pl-en">_unscale_sld</span>(<span class="pl-smi">pars</span>):</td> 
     666      </tr> 
     667      <tr> 
     668        <td id="L64" class="blob-num js-line-number" data-line-number="64"></td> 
     669        <td id="LC64" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     670      </tr> 
     671      <tr> 
     672        <td id="L65" class="blob-num js-line-number" data-line-number="65"></td> 
     673        <td id="LC65" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    rescale all sld parameters in the new model definition by 1e6 so the</span></td> 
     674      </tr> 
     675      <tr> 
     676        <td id="L66" class="blob-num js-line-number" data-line-number="66"></td> 
     677        <td id="LC66" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    numbers are nicer.  Relies on the fact that all sld parameters in the</span></td> 
     678      </tr> 
     679      <tr> 
     680        <td id="L67" class="blob-num js-line-number" data-line-number="67"></td> 
     681        <td id="LC67" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    new model definition end with sld.</span></td> 
     682      </tr> 
     683      <tr> 
     684        <td id="L68" class="blob-num js-line-number" data-line-number="68"></td> 
     685        <td id="LC68" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    <span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     686      </tr> 
     687      <tr> 
     688        <td id="L69" class="blob-num js-line-number" data-line-number="69"></td> 
     689        <td id="LC69" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">return</span> <span class="pl-c1">dict</span>((p, (v<span class="pl-k">*</span><span class="pl-c1">1e-6</span> <span class="pl-k">if</span> p.endswith(<span class="pl-s"><span class="pl-pds">&#39;</span>sld<span class="pl-pds">&#39;</span></span>) <span class="pl-k">else</span> v))</td> 
     690      </tr> 
     691      <tr> 
     692        <td id="L70" class="blob-num js-line-number" data-line-number="70"></td> 
     693        <td id="LC70" class="blob-code blob-code-inner js-file-line">                <span class="pl-k">for</span> p, v <span class="pl-k">in</span> pars.items())</td> 
     694      </tr> 
     695      <tr> 
     696        <td id="L71" class="blob-num js-line-number" data-line-number="71"></td> 
     697        <td id="LC71" class="blob-code blob-code-inner js-file-line"> 
     698</td> 
     699      </tr> 
     700      <tr> 
     701        <td id="L72" class="blob-num js-line-number" data-line-number="72"></td> 
     702        <td id="LC72" class="blob-code blob-code-inner js-file-line"><span class="pl-k">def</span> <span class="pl-en">_remove_pd</span>(<span class="pl-smi">pars</span>, <span class="pl-smi">key</span>, <span class="pl-smi">name</span>):</td> 
     703      </tr> 
     704      <tr> 
     705        <td id="L73" class="blob-num js-line-number" data-line-number="73"></td> 
     706        <td id="LC73" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     707      </tr> 
     708      <tr> 
     709        <td id="L74" class="blob-num js-line-number" data-line-number="74"></td> 
     710        <td id="LC74" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    Remove polydispersity from the parameter list.</span></td> 
     711      </tr> 
     712      <tr> 
     713        <td id="L75" class="blob-num js-line-number" data-line-number="75"></td> 
     714        <td id="LC75" class="blob-code blob-code-inner js-file-line"><span class="pl-s"></span></td> 
     715      </tr> 
     716      <tr> 
     717        <td id="L76" class="blob-num js-line-number" data-line-number="76"></td> 
     718        <td id="LC76" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    Note: operates in place</span></td> 
     719      </tr> 
     720      <tr> 
     721        <td id="L77" class="blob-num js-line-number" data-line-number="77"></td> 
     722        <td id="LC77" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    <span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     723      </tr> 
     724      <tr> 
     725        <td id="L78" class="blob-num js-line-number" data-line-number="78"></td> 
     726        <td id="LC78" class="blob-code blob-code-inner js-file-line">    <span class="pl-c"># Bumps style parameter names</span></td> 
     727      </tr> 
     728      <tr> 
     729        <td id="L79" class="blob-num js-line-number" data-line-number="79"></td> 
     730        <td id="LC79" class="blob-code blob-code-inner js-file-line">    pd <span class="pl-k">=</span> pars.pop(key<span class="pl-k">+</span><span class="pl-s"><span class="pl-pds">&quot;</span>.width<span class="pl-pds">&quot;</span></span>, <span class="pl-c1">0.0</span>)</td> 
     731      </tr> 
     732      <tr> 
     733        <td id="L80" class="blob-num js-line-number" data-line-number="80"></td> 
     734        <td id="LC80" class="blob-code blob-code-inner js-file-line">    pd_n <span class="pl-k">=</span> pars.pop(key<span class="pl-k">+</span><span class="pl-s"><span class="pl-pds">&quot;</span>.npts<span class="pl-pds">&quot;</span></span>, <span class="pl-c1">0</span>)</td> 
     735      </tr> 
     736      <tr> 
     737        <td id="L81" class="blob-num js-line-number" data-line-number="81"></td> 
     738        <td id="LC81" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">if</span> pd <span class="pl-k">!=</span> <span class="pl-c1">0.0</span> <span class="pl-k">and</span> pd_n <span class="pl-k">!=</span> <span class="pl-c1">0</span>:</td> 
     739      </tr> 
     740      <tr> 
     741        <td id="L82" class="blob-num js-line-number" data-line-number="82"></td> 
     742        <td id="LC82" class="blob-code blob-code-inner js-file-line">        warnings.warn(<span class="pl-s"><span class="pl-pds">&quot;</span>parameter <span class="pl-c1">%s</span> not polydisperse in sasview <span class="pl-c1">%s</span><span class="pl-pds">&quot;</span></span><span class="pl-k">%</span>(key, name))</td> 
     743      </tr> 
     744      <tr> 
     745        <td id="L83" class="blob-num js-line-number" data-line-number="83"></td> 
     746        <td id="LC83" class="blob-code blob-code-inner js-file-line">    pars.pop(key<span class="pl-k">+</span><span class="pl-s"><span class="pl-pds">&quot;</span>.nsigmas<span class="pl-pds">&quot;</span></span>, <span class="pl-c1">None</span>)</td> 
     747      </tr> 
     748      <tr> 
     749        <td id="L84" class="blob-num js-line-number" data-line-number="84"></td> 
     750        <td id="LC84" class="blob-code blob-code-inner js-file-line">    pars.pop(key<span class="pl-k">+</span><span class="pl-s"><span class="pl-pds">&quot;</span>.type<span class="pl-pds">&quot;</span></span>, <span class="pl-c1">None</span>)</td> 
     751      </tr> 
     752      <tr> 
     753        <td id="L85" class="blob-num js-line-number" data-line-number="85"></td> 
     754        <td id="LC85" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">return</span> pars</td> 
     755      </tr> 
     756      <tr> 
     757        <td id="L86" class="blob-num js-line-number" data-line-number="86"></td> 
     758        <td id="LC86" class="blob-code blob-code-inner js-file-line"> 
     759</td> 
     760      </tr> 
     761      <tr> 
     762        <td id="L87" class="blob-num js-line-number" data-line-number="87"></td> 
     763        <td id="LC87" class="blob-code blob-code-inner js-file-line"><span class="pl-k">def</span> <span class="pl-en">_revert_pars</span>(<span class="pl-smi">pars</span>, <span class="pl-smi">mapping</span>):</td> 
     764      </tr> 
     765      <tr> 
     766        <td id="L88" class="blob-num js-line-number" data-line-number="88"></td> 
     767        <td id="LC88" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     768      </tr> 
     769      <tr> 
     770        <td id="L89" class="blob-num js-line-number" data-line-number="89"></td> 
     771        <td id="LC89" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    Rename the parameters and any associated polydispersity attributes.</span></td> 
     772      </tr> 
     773      <tr> 
     774        <td id="L90" class="blob-num js-line-number" data-line-number="90"></td> 
     775        <td id="LC90" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    <span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     776      </tr> 
     777      <tr> 
     778        <td id="L91" class="blob-num js-line-number" data-line-number="91"></td> 
     779        <td id="LC91" class="blob-code blob-code-inner js-file-line">    newpars <span class="pl-k">=</span> pars.copy()</td> 
     780      </tr> 
     781      <tr> 
     782        <td id="L92" class="blob-num js-line-number" data-line-number="92"></td> 
     783        <td id="LC92" class="blob-code blob-code-inner js-file-line"> 
     784</td> 
     785      </tr> 
     786      <tr> 
     787        <td id="L93" class="blob-num js-line-number" data-line-number="93"></td> 
     788        <td id="LC93" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">for</span> new, old <span class="pl-k">in</span> mapping.items():</td> 
     789      </tr> 
     790      <tr> 
     791        <td id="L94" class="blob-num js-line-number" data-line-number="94"></td> 
     792        <td id="LC94" class="blob-code blob-code-inner js-file-line">        <span class="pl-k">for</span> pd, dot <span class="pl-k">in</span> <span class="pl-c1">PD_DOT</span>:</td> 
     793      </tr> 
     794      <tr> 
     795        <td id="L95" class="blob-num js-line-number" data-line-number="95"></td> 
     796        <td id="LC95" class="blob-code blob-code-inner js-file-line">            <span class="pl-k">if</span> old <span class="pl-k">and</span> old<span class="pl-k">+</span>pd <span class="pl-k">==</span> new<span class="pl-k">+</span>dot:</td> 
     797      </tr> 
     798      <tr> 
     799        <td id="L96" class="blob-num js-line-number" data-line-number="96"></td> 
     800        <td id="LC96" class="blob-code blob-code-inner js-file-line">                <span class="pl-k">continue</span></td> 
     801      </tr> 
     802      <tr> 
     803        <td id="L97" class="blob-num js-line-number" data-line-number="97"></td> 
     804        <td id="LC97" class="blob-code blob-code-inner js-file-line">            <span class="pl-k">if</span> new<span class="pl-k">+</span>pd <span class="pl-k">in</span> newpars:</td> 
     805      </tr> 
     806      <tr> 
     807        <td id="L98" class="blob-num js-line-number" data-line-number="98"></td> 
     808        <td id="LC98" class="blob-code blob-code-inner js-file-line">                <span class="pl-k">if</span> old <span class="pl-k">is</span> <span class="pl-k">not</span> <span class="pl-c1">None</span>:</td> 
     809      </tr> 
     810      <tr> 
     811        <td id="L99" class="blob-num js-line-number" data-line-number="99"></td> 
     812        <td id="LC99" class="blob-code blob-code-inner js-file-line">                    newpars[old<span class="pl-k">+</span>dot] <span class="pl-k">=</span> pars[new<span class="pl-k">+</span>pd]</td> 
     813      </tr> 
     814      <tr> 
     815        <td id="L100" class="blob-num js-line-number" data-line-number="100"></td> 
     816        <td id="LC100" class="blob-code blob-code-inner js-file-line">                <span class="pl-k">del</span> newpars[new<span class="pl-k">+</span>pd]</td> 
     817      </tr> 
     818      <tr> 
     819        <td id="L101" class="blob-num js-line-number" data-line-number="101"></td> 
     820        <td id="LC101" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">for</span> k <span class="pl-k">in</span> <span class="pl-c1">list</span>(newpars.keys()):</td> 
     821      </tr> 
     822      <tr> 
     823        <td id="L102" class="blob-num js-line-number" data-line-number="102"></td> 
     824        <td id="LC102" class="blob-code blob-code-inner js-file-line">        <span class="pl-k">for</span> pd, dot <span class="pl-k">in</span> <span class="pl-c1">PD_DOT</span>[<span class="pl-c1">1</span>:]:  <span class="pl-c"># skip &quot;&quot; =&gt; &quot;&quot;</span></td> 
     825      </tr> 
     826      <tr> 
     827        <td id="L103" class="blob-num js-line-number" data-line-number="103"></td> 
     828        <td id="LC103" class="blob-code blob-code-inner js-file-line">            <span class="pl-k">if</span> k.endswith(pd):</td> 
     829      </tr> 
     830      <tr> 
     831        <td id="L104" class="blob-num js-line-number" data-line-number="104"></td> 
     832        <td id="LC104" class="blob-code blob-code-inner js-file-line">                newpars[k[:<span class="pl-k">-</span><span class="pl-c1">len</span>(pd)]<span class="pl-k">+</span>dot] <span class="pl-k">=</span> newpars[k]</td> 
     833      </tr> 
     834      <tr> 
     835        <td id="L105" class="blob-num js-line-number" data-line-number="105"></td> 
     836        <td id="LC105" class="blob-code blob-code-inner js-file-line">                <span class="pl-k">del</span> newpars[k]</td> 
     837      </tr> 
     838      <tr> 
     839        <td id="L106" class="blob-num js-line-number" data-line-number="106"></td> 
     840        <td id="LC106" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">return</span> newpars</td> 
     841      </tr> 
     842      <tr> 
     843        <td id="L107" class="blob-num js-line-number" data-line-number="107"></td> 
     844        <td id="LC107" class="blob-code blob-code-inner js-file-line"> 
     845</td> 
     846      </tr> 
     847      <tr> 
     848        <td id="L108" class="blob-num js-line-number" data-line-number="108"></td> 
     849        <td id="LC108" class="blob-code blob-code-inner js-file-line"><span class="pl-k">def</span> <span class="pl-en">revert_model</span>(<span class="pl-smi">model_definition</span>, <span class="pl-smi">pars</span>):</td> 
     850      </tr> 
     851      <tr> 
     852        <td id="L109" class="blob-num js-line-number" data-line-number="109"></td> 
     853        <td id="LC109" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     854      </tr> 
     855      <tr> 
     856        <td id="L110" class="blob-num js-line-number" data-line-number="110"></td> 
     857        <td id="LC110" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    Convert model from new style parameter names to old style.</span></td> 
     858      </tr> 
     859      <tr> 
     860        <td id="L111" class="blob-num js-line-number" data-line-number="111"></td> 
     861        <td id="LC111" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    <span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     862      </tr> 
     863      <tr> 
     864        <td id="L112" class="blob-num js-line-number" data-line-number="112"></td> 
     865        <td id="LC112" class="blob-code blob-code-inner js-file-line">    mapping <span class="pl-k">=</span> model_definition.oldpars</td> 
     866      </tr> 
     867      <tr> 
     868        <td id="L113" class="blob-num js-line-number" data-line-number="113"></td> 
     869        <td id="LC113" class="blob-code blob-code-inner js-file-line">    oldname <span class="pl-k">=</span> model_definition.oldname</td> 
     870      </tr> 
     871      <tr> 
     872        <td id="L114" class="blob-num js-line-number" data-line-number="114"></td> 
     873        <td id="LC114" class="blob-code blob-code-inner js-file-line">    oldpars <span class="pl-k">=</span> _revert_pars(_unscale_sld(pars), mapping)</td> 
     874      </tr> 
     875      <tr> 
     876        <td id="L115" class="blob-num js-line-number" data-line-number="115"></td> 
     877        <td id="LC115" class="blob-code blob-code-inner js-file-line"> 
     878</td> 
     879      </tr> 
     880      <tr> 
     881        <td id="L116" class="blob-num js-line-number" data-line-number="116"></td> 
     882        <td id="LC116" class="blob-code blob-code-inner js-file-line">    <span class="pl-c"># Note: update compare.constrain_pars to match</span></td> 
     883      </tr> 
     884      <tr> 
     885        <td id="L117" class="blob-num js-line-number" data-line-number="117"></td> 
     886        <td id="LC117" class="blob-code blob-code-inner js-file-line">    name <span class="pl-k">=</span> model_definition.name</td> 
     887      </tr> 
     888      <tr> 
     889        <td id="L118" class="blob-num js-line-number" data-line-number="118"></td> 
     890        <td id="LC118" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">if</span> name <span class="pl-k">in</span> <span class="pl-c1">MODELS_WITHOUT_SCALE</span>:</td> 
     891      </tr> 
     892      <tr> 
     893        <td id="L119" class="blob-num js-line-number" data-line-number="119"></td> 
     894        <td id="LC119" class="blob-code blob-code-inner js-file-line">        <span class="pl-k">if</span> oldpars.pop(<span class="pl-s"><span class="pl-pds">&#39;</span>scale<span class="pl-pds">&#39;</span></span>, <span class="pl-c1">1.0</span>) <span class="pl-k">!=</span> <span class="pl-c1">1.0</span>:</td> 
     895      </tr> 
     896      <tr> 
     897        <td id="L120" class="blob-num js-line-number" data-line-number="120"></td> 
     898        <td id="LC120" class="blob-code blob-code-inner js-file-line">            warnings.warn(<span class="pl-s"><span class="pl-pds">&quot;</span>parameter scale not used in sasview <span class="pl-c1">%s</span><span class="pl-pds">&quot;</span></span><span class="pl-k">%</span>name)</td> 
     899      </tr> 
     900      <tr> 
     901        <td id="L121" class="blob-num js-line-number" data-line-number="121"></td> 
     902        <td id="LC121" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">elif</span> name <span class="pl-k">in</span> <span class="pl-c1">MODELS_WITHOUT_BACKGROUND</span>:</td> 
     903      </tr> 
     904      <tr> 
     905        <td id="L122" class="blob-num js-line-number" data-line-number="122"></td> 
     906        <td id="LC122" class="blob-code blob-code-inner js-file-line">        <span class="pl-k">if</span> oldpars.pop(<span class="pl-s"><span class="pl-pds">&#39;</span>background<span class="pl-pds">&#39;</span></span>, <span class="pl-c1">0.0</span>) <span class="pl-k">!=</span> <span class="pl-c1">0.0</span>:</td> 
     907      </tr> 
     908      <tr> 
     909        <td id="L123" class="blob-num js-line-number" data-line-number="123"></td> 
     910        <td id="LC123" class="blob-code blob-code-inner js-file-line">            warnings.warn(<span class="pl-s"><span class="pl-pds">&quot;</span>parameter background not used in sasview <span class="pl-c1">%s</span><span class="pl-pds">&quot;</span></span><span class="pl-k">%</span>name)</td> 
     911      </tr> 
     912      <tr> 
     913        <td id="L124" class="blob-num js-line-number" data-line-number="124"></td> 
     914        <td id="LC124" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">elif</span> <span class="pl-c1">getattr</span>(model_definition, <span class="pl-s"><span class="pl-pds">&#39;</span>category<span class="pl-pds">&#39;</span></span>, <span class="pl-c1">None</span>) <span class="pl-k">==</span> <span class="pl-s"><span class="pl-pds">&#39;</span>structure-factor<span class="pl-pds">&#39;</span></span>:</td> 
     915      </tr> 
     916      <tr> 
     917        <td id="L125" class="blob-num js-line-number" data-line-number="125"></td> 
     918        <td id="LC125" class="blob-code blob-code-inner js-file-line">        <span class="pl-k">if</span> oldpars.pop(<span class="pl-s"><span class="pl-pds">&#39;</span>scale<span class="pl-pds">&#39;</span></span>, <span class="pl-c1">1.0</span>) <span class="pl-k">!=</span> <span class="pl-c1">1.0</span>:</td> 
     919      </tr> 
     920      <tr> 
     921        <td id="L126" class="blob-num js-line-number" data-line-number="126"></td> 
     922        <td id="LC126" class="blob-code blob-code-inner js-file-line">            warnings.warn(<span class="pl-s"><span class="pl-pds">&quot;</span>parameter scale not used in sasview <span class="pl-c1">%s</span><span class="pl-pds">&quot;</span></span><span class="pl-k">%</span>name)</td> 
     923      </tr> 
     924      <tr> 
     925        <td id="L127" class="blob-num js-line-number" data-line-number="127"></td> 
     926        <td id="LC127" class="blob-code blob-code-inner js-file-line">        <span class="pl-k">if</span> oldpars.pop(<span class="pl-s"><span class="pl-pds">&#39;</span>background<span class="pl-pds">&#39;</span></span>, <span class="pl-c1">0.0</span>) <span class="pl-k">!=</span> <span class="pl-c1">0.0</span>:</td> 
     927      </tr> 
     928      <tr> 
     929        <td id="L128" class="blob-num js-line-number" data-line-number="128"></td> 
     930        <td id="LC128" class="blob-code blob-code-inner js-file-line">            warnings.warn(<span class="pl-s"><span class="pl-pds">&quot;</span>parameter background not used in sasview <span class="pl-c1">%s</span><span class="pl-pds">&quot;</span></span><span class="pl-k">%</span>name)</td> 
     931      </tr> 
     932      <tr> 
     933        <td id="L129" class="blob-num js-line-number" data-line-number="129"></td> 
     934        <td id="LC129" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">elif</span> name <span class="pl-k">==</span> <span class="pl-s"><span class="pl-pds">&#39;</span>pearl_necklace<span class="pl-pds">&#39;</span></span>:</td> 
     935      </tr> 
     936      <tr> 
     937        <td id="L130" class="blob-num js-line-number" data-line-number="130"></td> 
     938        <td id="LC130" class="blob-code blob-code-inner js-file-line">        _remove_pd(oldpars, <span class="pl-s"><span class="pl-pds">&#39;</span>num_pearls<span class="pl-pds">&#39;</span></span>, name)</td> 
     939      </tr> 
     940      <tr> 
     941        <td id="L131" class="blob-num js-line-number" data-line-number="131"></td> 
     942        <td id="LC131" class="blob-code blob-code-inner js-file-line">        _remove_pd(oldpars, <span class="pl-s"><span class="pl-pds">&#39;</span>thick_string<span class="pl-pds">&#39;</span></span>, name)</td> 
     943      </tr> 
     944      <tr> 
     945        <td id="L132" class="blob-num js-line-number" data-line-number="132"></td> 
     946        <td id="LC132" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">elif</span> name <span class="pl-k">==</span> <span class="pl-s"><span class="pl-pds">&#39;</span>rpa<span class="pl-pds">&#39;</span></span>:</td> 
     947      </tr> 
     948      <tr> 
     949        <td id="L133" class="blob-num js-line-number" data-line-number="133"></td> 
     950        <td id="LC133" class="blob-code blob-code-inner js-file-line">        <span class="pl-c"># convert scattering lengths from femtometers to centimeters</span></td> 
     951      </tr> 
     952      <tr> 
     953        <td id="L134" class="blob-num js-line-number" data-line-number="134"></td> 
     954        <td id="LC134" class="blob-code blob-code-inner js-file-line">        <span class="pl-k">for</span> p <span class="pl-k">in</span> <span class="pl-s"><span class="pl-pds">&quot;</span>La<span class="pl-pds">&quot;</span></span>, <span class="pl-s"><span class="pl-pds">&quot;</span>Lb<span class="pl-pds">&quot;</span></span>, <span class="pl-s"><span class="pl-pds">&quot;</span>Lc<span class="pl-pds">&quot;</span></span>, <span class="pl-s"><span class="pl-pds">&quot;</span>Ld<span class="pl-pds">&quot;</span></span>:</td> 
     955      </tr> 
     956      <tr> 
     957        <td id="L135" class="blob-num js-line-number" data-line-number="135"></td> 
     958        <td id="LC135" class="blob-code blob-code-inner js-file-line">            <span class="pl-k">if</span> p <span class="pl-k">in</span> oldpars: oldpars[p] <span class="pl-k">*=</span> <span class="pl-c1">1e-13</span></td> 
     959      </tr> 
     960      <tr> 
     961        <td id="L136" class="blob-num js-line-number" data-line-number="136"></td> 
     962        <td id="LC136" class="blob-code blob-code-inner js-file-line"> 
     963</td> 
     964      </tr> 
     965      <tr> 
     966        <td id="L137" class="blob-num js-line-number" data-line-number="137"></td> 
     967        <td id="LC137" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">return</span> oldname, oldpars</td> 
     968      </tr> 
     969      <tr> 
     970        <td id="L138" class="blob-num js-line-number" data-line-number="138"></td> 
     971        <td id="LC138" class="blob-code blob-code-inner js-file-line"> 
     972</td> 
     973      </tr> 
     974      <tr> 
     975        <td id="L139" class="blob-num js-line-number" data-line-number="139"></td> 
     976        <td id="LC139" class="blob-code blob-code-inner js-file-line"><span class="pl-k">def</span> <span class="pl-en">constrain_new_to_old</span>(<span class="pl-smi">model_definition</span>, <span class="pl-smi">pars</span>):</td> 
     977      </tr> 
     978      <tr> 
     979        <td id="L140" class="blob-num js-line-number" data-line-number="140"></td> 
     980        <td id="LC140" class="blob-code blob-code-inner js-file-line">    <span class="pl-s"><span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     981      </tr> 
     982      <tr> 
     983        <td id="L141" class="blob-num js-line-number" data-line-number="141"></td> 
     984        <td id="LC141" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    Restrict parameter values to those that will match sasview.</span></td> 
     985      </tr> 
     986      <tr> 
     987        <td id="L142" class="blob-num js-line-number" data-line-number="142"></td> 
     988        <td id="LC142" class="blob-code blob-code-inner js-file-line"><span class="pl-s">    <span class="pl-pds">&quot;&quot;&quot;</span></span></td> 
     989      </tr> 
     990      <tr> 
     991        <td id="L143" class="blob-num js-line-number" data-line-number="143"></td> 
     992        <td id="LC143" class="blob-code blob-code-inner js-file-line">    <span class="pl-c"># Note: update convert.revert_model to match</span></td> 
     993      </tr> 
     994      <tr> 
     995        <td id="L144" class="blob-num js-line-number" data-line-number="144"></td> 
     996        <td id="LC144" class="blob-code blob-code-inner js-file-line">    name <span class="pl-k">=</span> model_definition.name</td> 
     997      </tr> 
     998      <tr> 
     999        <td id="L145" class="blob-num js-line-number" data-line-number="145"></td> 
     1000        <td id="LC145" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">if</span> name <span class="pl-k">in</span> <span class="pl-c1">MODELS_WITHOUT_SCALE</span>:</td> 
     1001      </tr> 
     1002      <tr> 
     1003        <td id="L146" class="blob-num js-line-number" data-line-number="146"></td> 
     1004        <td id="LC146" class="blob-code blob-code-inner js-file-line">        pars[<span class="pl-s"><span class="pl-pds">&#39;</span>scale<span class="pl-pds">&#39;</span></span>] <span class="pl-k">=</span> <span class="pl-c1">1</span></td> 
     1005      </tr> 
     1006      <tr> 
     1007        <td id="L147" class="blob-num js-line-number" data-line-number="147"></td> 
     1008        <td id="LC147" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">elif</span> name <span class="pl-k">in</span> <span class="pl-c1">MODELS_WITHOUT_BACKGROUND</span>:</td> 
     1009      </tr> 
     1010      <tr> 
     1011        <td id="L148" class="blob-num js-line-number" data-line-number="148"></td> 
     1012        <td id="LC148" class="blob-code blob-code-inner js-file-line">        pars[<span class="pl-s"><span class="pl-pds">&#39;</span>background<span class="pl-pds">&#39;</span></span>] <span class="pl-k">=</span> <span class="pl-c1">0</span></td> 
     1013      </tr> 
     1014      <tr> 
     1015        <td id="L149" class="blob-num js-line-number" data-line-number="149"></td> 
     1016        <td id="LC149" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">elif</span> name <span class="pl-k">==</span> <span class="pl-s"><span class="pl-pds">&#39;</span>pearl_necklace<span class="pl-pds">&#39;</span></span>:</td> 
     1017      </tr> 
     1018      <tr> 
     1019        <td id="L150" class="blob-num js-line-number" data-line-number="150"></td> 
     1020        <td id="LC150" class="blob-code blob-code-inner js-file-line">        pars[<span class="pl-s"><span class="pl-pds">&#39;</span>string_thickness_pd_n<span class="pl-pds">&#39;</span></span>] <span class="pl-k">=</span> <span class="pl-c1">0</span></td> 
     1021      </tr> 
     1022      <tr> 
     1023        <td id="L151" class="blob-num js-line-number" data-line-number="151"></td> 
     1024        <td id="LC151" class="blob-code blob-code-inner js-file-line">        pars[<span class="pl-s"><span class="pl-pds">&#39;</span>number_of_pearls_pd_n<span class="pl-pds">&#39;</span></span>] <span class="pl-k">=</span> <span class="pl-c1">0</span></td> 
     1025      </tr> 
     1026      <tr> 
     1027        <td id="L152" class="blob-num js-line-number" data-line-number="152"></td> 
     1028        <td id="LC152" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">elif</span> name <span class="pl-k">==</span> <span class="pl-s"><span class="pl-pds">&#39;</span>rpa<span class="pl-pds">&#39;</span></span>:</td> 
     1029      </tr> 
     1030      <tr> 
     1031        <td id="L153" class="blob-num js-line-number" data-line-number="153"></td> 
     1032        <td id="LC153" class="blob-code blob-code-inner js-file-line">        pars[<span class="pl-s"><span class="pl-pds">&#39;</span>case_num<span class="pl-pds">&#39;</span></span>] <span class="pl-k">=</span> <span class="pl-c1">int</span>(pars[<span class="pl-s"><span class="pl-pds">&#39;</span>case_num<span class="pl-pds">&#39;</span></span>])</td> 
     1033      </tr> 
     1034      <tr> 
     1035        <td id="L154" class="blob-num js-line-number" data-line-number="154"></td> 
     1036        <td id="LC154" class="blob-code blob-code-inner js-file-line">    <span class="pl-k">elif</span> <span class="pl-c1">getattr</span>(model_definition, <span class="pl-s"><span class="pl-pds">&#39;</span>category<span class="pl-pds">&#39;</span></span>, <span class="pl-c1">None</span>) <span class="pl-k">==</span> <span class="pl-s"><span class="pl-pds">&#39;</span>structure-factor<span class="pl-pds">&#39;</span></span>:</td> 
     1037      </tr> 
     1038      <tr> 
     1039        <td id="L155" class="blob-num js-line-number" data-line-number="155"></td> 
     1040        <td id="LC155" class="blob-code blob-code-inner js-file-line">        pars[<span class="pl-s"><span class="pl-pds">&#39;</span>scale<span class="pl-pds">&#39;</span></span>], pars[<span class="pl-s"><span class="pl-pds">&#39;</span>background<span class="pl-pds">&#39;</span></span>] <span class="pl-k">=</span> <span class="pl-c1">1</span>, <span class="pl-c1">0</span></td> 
     1041      </tr> 
     1042      <tr> 
     1043        <td id="L156" class="blob-num js-line-number" data-line-number="156"></td> 
     1044        <td id="LC156" class="blob-code blob-code-inner js-file-line"> 
     1045</td> 
     1046      </tr> 
     1047</table> 
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