Changeset d277229 in sasmodels for sasmodels/models/hollow_rectangular_prism_thin_walls.py
- Timestamp:
- Sep 7, 2018 3:29:38 AM (6 years ago)
- Branches:
- master, core_shell_microgels, magnetic_model, ticket-1257-vesicle-product, ticket_1156, ticket_1265_superball, ticket_822_more_unit_tests
- Children:
- 3c60146
- Parents:
- 2a12351b
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
sasmodels/models/hollow_rectangular_prism_thin_walls.py
r71b751d rd277229 103 103 source = ["lib/gauss76.c", "hollow_rectangular_prism_thin_walls.c"] 104 104 have_Fq = True 105 effective_radius_type = ["equivalent sphere","half length_a", "half length_b", "half length_c", 106 "equivalent outer circular cross-section","half ab diagonal","half diagonal"] 105 107 106 def ER(length_a, b2a_ratio, c2a_ratio):107 """108 Return equivalent radius (ER)109 """110 b_side = length_a * b2a_ratio111 c_side = length_a * c2a_ratio112 113 # surface average radius (rough approximation)114 surf_rad = sqrt(length_a * b_side / pi)115 116 ddd = 0.75 * surf_rad * (2 * surf_rad * c_side + (c_side + surf_rad) * (c_side + pi * surf_rad))117 return 0.5 * (ddd) ** (1. / 3.)108 #def ER(length_a, b2a_ratio, c2a_ratio): 109 # """ 110 # Return equivalent radius (ER) 111 # """ 112 # b_side = length_a * b2a_ratio 113 # c_side = length_a * c2a_ratio 114 # 115 # # surface average radius (rough approximation) 116 # surf_rad = sqrt(length_a * b_side / pi) 117 # 118 # ddd = 0.75 * surf_rad * (2 * surf_rad * c_side + (c_side + surf_rad) * (c_side + pi * surf_rad)) 119 # return 0.5 * (ddd) ** (1. / 3.) 118 120 119 121 def VR(length_a, b2a_ratio, c2a_ratio):
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