source: sasview/sansview/plugins/testmodel.py @ 72b524b

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Last change on this file since 72b524b was 539b1d6, checked in by Mathieu Doucet <doucetm@…>, 16 years ago

debugged init

  • Property mode set to 100644
File size: 1.0 KB
Line 
1"""
2    Test plug-in model
3"""
4from sans.models.pluginmodel import Model1DPlugin
5
6import math
7
8
9# Your model HAS to be called Model
10class Model(Model1DPlugin):
11    """ Class that evaluates a cos(x) model.
12    """
13   
14    ## Name of the model
15    name = "A+Bcos(2x)+Csin(2x)"
16   
17    def __init__(self):
18        """ Initialization """
19        Model1DPlugin.__init__(self)
20       
21        ## Parameters definition and defaults
22        self.params = {}
23        self.params['A'] = 0.0
24        self.params['B'] = 1.0
25        self.params['C'] = 0.0
26
27        ## Parameter details [units, min, max]
28        self.details = {}
29        self.details['A'] = ['', -1e16, 1e16]
30        self.details['B'] = ['', -1e16, 1e16]
31        self.details['C'] = ['', -1e16, 1e16]
32   
33    def function(self, x = 0.0):
34        """ Evaluate the model
35            @param x: input x
36            @return: function value
37        """
38        return self.params['A']+self.params['B']*math.cos(2.0*x)+self.params['C']*math.sin(2.0*x)
39   
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