Changeset c612162 in sasmodels


Ignore:
Timestamp:
Feb 17, 2016 1:54:00 PM (7 years ago)
Author:
Doucet, Mathieu <doucetm@…>
Branches:
master, core_shell_microgels, costrafo411, magnetic_model, release_v0.94, release_v0.95, ticket-1257-vesicle-product, ticket_1156, ticket_1265_superball, ticket_822_more_unit_tests
Children:
b7c2fce
Parents:
a8b3cdb
Message:

fix pylint

File:
1 edited

Legend:

Unmodified
Added
Removed
  • sasmodels/models/elliptical_cylinder.py

    ra8b3cdb rc612162  
     1# pylint: disable=line-too-long 
    12r""" 
    23This function calculates the scattering from an elliptical cylinder. 
     
    9596title = "Form factor for an elliptical cylinder." 
    9697description = """ 
    97     F^2(q) = The function calculated is 
    98  
    99 .. math:: 
    100     I(\mathbf{q})=\frac{1}{V_{cyl}}\int{d\psi}\int{d\phi}\int{p(\theta,\phi,\psi)F^2(\mathbf{q},\alpha,\psi)\sin(\theta)d\theta} 
    101  
    102 with the functions 
    103  
    104 .. math:: 
    105     F(\mathbf{q},\alpha,\psi)=2\frac{J_1(a)\sin(b)}{ab}  
    106     \\ 
    107     a = \mathbf{q}\sin(\alpha)\left[ r^2_{major}\sin^2(\psi)+r^2_{minor}\cos(\psi) \right]^{1/2} 
    108     \\ 
    109     b=\mathbf{q}\frac{L}{2}\cos(\alpha) 
    110      
    111 In 1D we have 
    112  
    113 .. math:: 
    114     P(q) = scale  <F^2> / V 
     98    Form factor for an elliptical cylinder. 
     99    See L A Feigin and D I Svergun, Structure Analysis by Small-Angle X-Ray and Neutron Scattering, Plenum, New York, (1987). 
    115100""" 
    116101category = "shape:cylinder" 
     
    144129        @param length: Length of the cylinder 
    145130    """ 
    146     r = math.sqrt(r_minor * r_minor * r_ratio ) 
     131    r = math.sqrt(r_minor * r_minor * r_ratio) 
    147132    ddd = 0.75 * r * (2 * r * length + (length + r) * (length + pi * r)) 
    148133    return 0.5 * (ddd) ** (1. / 3.) 
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