source: sasview/src/sas/sascalc/fit/pluginmodel.py @ 0b1a677

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Last change on this file since 0b1a677 was 5213d22, checked in by Paul Kienzle <pkienzle@…>, 7 years ago

support old style custom formula models (but not sum or product)

  • Property mode set to 100644
File size: 1.7 KB
Line 
1from sas.sascalc.calculator.BaseComponent import BaseComponent
2import math
3
4class Model1DPlugin(BaseComponent):
5    is_multiplicity_model = False
6
7    ## Name of the model
8
9    def __init__(self , name="Plugin Model" ):
10        """ Initialization """
11        BaseComponent.__init__(self)
12        self.name = name
13        self.details = {}
14        self.params  = {}
15        self.description = 'plugin model'
16
17    def function(self, x):
18        """
19        Function to be implemented by the plug-in writer
20        """
21        return x
22
23    def run(self, x = 0.0):
24        """
25        Evaluate the model
26
27        :param x: input x, or [x, phi] [radian]
28
29        :return: function value
30
31        """
32        if x.__class__.__name__ == 'list':
33            x_val = x[0]*math.cos(x[1])
34            y_val = x[0]*math.sin(x[1])
35            return self.function(x_val)*self.function(y_val)
36        elif x.__class__.__name__ == 'tuple':
37            raise ValueError, "Tuples are not allowed as input to BaseComponent models"
38        else:
39            return self.function(x)
40
41
42    def runXY(self, x = 0.0):
43        """
44        Evaluate the model
45
46        :param x: input x, or [x, y]
47
48        :return: function value
49
50        """
51        if x.__class__.__name__ == 'list':
52            return self.function(x[0])*self.function(x[1])
53        elif x.__class__.__name__ == 'tuple':
54            raise ValueError, "Tuples are not allowed as input to BaseComponent models"
55        else:
56            return self.function(x)
57
58    def set_details(self):
59        """
60        Set default details
61        """
62        if not self.params:
63            return {}
64
65        for key in self.params.keys():
66            self.details[key] = ['', None, None]
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