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Last change
on this file since 97603c0 was
27972c1d,
checked in by Jae Cho <jhjcho@…>, 15 years ago
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removed all non asc font in the units
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-
Property mode set to
100644
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File size:
1.5 KB
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Rev | Line | |
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[5068697] | 1 | /* |
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| 2 | TODO: Add 2D model |
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| 3 | */ |
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| 4 | |
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| 5 | #if !defined(flexible_cylinder_h) |
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| 6 | #define flexible_cylinder_h |
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| 7 | /** Structure definition for Flexible cylinder parameters |
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| 8 | * [PYTHONCLASS] = FlexibleCylinderModel |
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[ea07075] | 9 | * [DISP_PARAMS] = length, kuhn_length, radius |
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| 10 | [DESCRIPTION] = <text> Note : 'scale' and 'contrast' are both multiplicative factors in the |
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| 11 | model and are perfectly correlated. One or |
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| 12 | both of these parameters must be held fixed |
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| 13 | during model fitting. |
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[5068697] | 14 | </text> |
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[e6fa43e] | 15 | [FIXED]= <text>length.width; kuhn_length.width; radius.width</text> |
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[ea07075] | 16 | [ORIENTATION_PARAMS]= <text></text> |
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[5068697] | 17 | |
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| 18 | |
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| 19 | **/ |
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| 20 | typedef struct { |
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| 21 | /// Scale factor |
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| 22 | // [DEFAULT]=scale=1.0 |
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| 23 | double scale; |
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| 24 | /// Length of the flexible cylinder [A] |
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| 25 | // [DEFAULT]=length=1000 [A] |
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| 26 | double length; |
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| 27 | /// Kuhn length of the flexible cylinder [A] |
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| 28 | // [DEFAULT]=kuhn_length=100 [A] |
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| 29 | double kuhn_length; |
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| 30 | /// Radius of the flexible cylinder [A] |
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| 31 | // [DEFAULT]=radius=20.0 [A] |
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| 32 | double radius; |
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[27972c1d] | 33 | /// Contrast [1/A^(2)] |
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| 34 | // [DEFAULT]=contrast=5.3e-6 [1/A^(2)] |
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[5068697] | 35 | double contrast; |
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[ea07075] | 36 | /// Incoherent Background [1/cm] |
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[5068697] | 37 | // [DEFAULT]=background=0.0001 [1/cm] |
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| 38 | double background; |
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| 39 | |
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| 40 | |
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| 41 | } FlexibleCylinderParameters; |
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| 42 | |
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| 43 | |
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| 44 | |
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| 45 | /// 1D scattering function |
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| 46 | double flexible_cylinder_analytical_1D(FlexibleCylinderParameters *pars, double q); |
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| 47 | |
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| 48 | /// 2D scattering function |
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| 49 | double flexible_cylinder_analytical_2D(FlexibleCylinderParameters *pars, double q, double phi); |
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| 50 | double flexible_cylinder_analytical_2DXY(FlexibleCylinderParameters *pars, double qx, double qy); |
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| 51 | |
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| 52 | #endif |
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