1 | from _asap import fitentry
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2 | from asap import rcParams
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3 |
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4 | class asapfit(fitentry):
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5 |
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6 | def __init__(self, other=None):
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7 | if isinstance(other, fitentry):
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8 | fitentry.__init__(self,other)
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9 | else:
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10 | fitentry.__init__(self)
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11 |
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12 | def __str__(self):
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13 | out = ""
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14 | out += "Fit:"
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15 | pars = self.getparameters()
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16 | mask = self.getfixedparameters()
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17 | funcs = self.getfunctions()
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18 | comps = self.getcomponents()
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19 | finfo = self.getframeinfo()
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20 | pos=0
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21 | k = 0
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22 | for f in funcs:
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23 | out += "\n Type: "
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24 | out += f
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25 | s = pos
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26 | pos += comps[k]
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27 | ps = pars[s:pos]
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28 | out += "\n Parameters: "
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29 | out += self._format_pars(pars[s:pos],f, finfo[0])
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30 | out += "\n Fixed Parms: "
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31 | out += str(mask[s:pos])
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32 | out += "\n Frame: "
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33 | out += str(finfo)
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34 | out += "\n"
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35 | out += "\n"
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36 | return out
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37 |
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38 | def as_dict(self):
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39 | out = []
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40 | pars = self.getparameters()
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41 | mask = self.getfixedparameters()
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42 | funcs = self.getfunctions()
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43 | comps = self.getcomponents()
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44 | pos=0
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45 | k=0
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46 | comp = []
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47 | for f in funcs:
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48 | s = pos
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49 | pos += comps[k]
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50 | ps = pars[s:pos]
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51 | d = {'function' : f,
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52 | 'parameters' : pars[s:pos],
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53 | 'fixed' : mask[s:pos],
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54 | 'frame' : self.getframeinfo()
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55 | }
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56 | comp.append(d)
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57 | k+=1
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58 | out.append(comp)
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59 | return out
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60 |
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61 | def save(self, filename):
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62 | f = file(filename, 'w')
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63 | parstr = ""
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64 | for i in xrange(self.getcomponents()[0]):
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65 | pname = "P%d"% (i)
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66 | parstr += "%-12s " % (pname)
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67 | header = "#%-12s %s\n" % ("Function", parstr)
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68 | f.write(header)
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69 | i = 0
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70 | funcs=self.getfunctions()
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71 | pars=self.getparameters()
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72 | for c in self.getcomponents():
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73 | line = " %-12s " % (funcs[i])
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74 | for j in xrange(c):
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75 | line += "%3.8f " % (pars[i*c+j])
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76 | i+=1
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77 | f.write(line+"\n")
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78 | f.close()
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79 |
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80 | def _format_pars(self, pars, ftype, unit):
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81 | out = ''
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82 | if ftype == 'poly':
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83 | i = 0
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84 | for p in pars:
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85 | out += ' p%d = %3.6f %s,' % (i,p,unit)
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86 | i+=1
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87 | out = out[1:-1]
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88 | elif ftype == 'gauss':
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89 | out += 'peak = %3.6f , centre = %3.6f %s, FWHM = %3.6f %s' % (pars[0],pars[1],unit,pars[2],unit)
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90 | return out
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