| 1 | from _asap import fitentry
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| 2 | from asap.parameters 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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