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Last change
on this file since c93122e was
79492222,
checked in by krzywon, 10 years ago
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Changed the file and folder names to remove all SANS references.
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-
Property mode set to
100644
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File size:
1.7 KB
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1 | #if !defined(fractal_h) |
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2 | #define fractal_h |
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3 | #include "parameters.hh" |
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4 | |
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5 | /** |
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6 | * Structure definition for sphere parameters |
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7 | */ |
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8 | //[PYTHONCLASS] = FractalModel |
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9 | //[DISP_PARAMS] = radius |
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10 | //[DESCRIPTION] =<text> The scattering intensity I(x) = P(|x|)*S(|x|) + background, where |
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11 | // p(x)= scale * V * delta^(2)* F(x*radius)^(2) |
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12 | // F(x) = 3*[sin(x)-x cos(x)]/x**3 |
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13 | // where delta = sldBlock -sldSolv. |
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14 | // scale = scale factor * Volume fraction |
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15 | // radius = Block radius |
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16 | // fractal_dim = Fractal dimension |
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17 | // cor_length = Correlation Length |
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18 | // sldBlock = SDL block |
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19 | // sldSolv = SDL solvent |
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20 | // background = background |
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21 | // </text> |
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22 | //[FIXED]= <text> radius.width </text> |
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23 | //[ORIENTATION_PARAMS]= <text> </text> |
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24 | |
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25 | class FractalModel{ |
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26 | public: |
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27 | // Model parameters |
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28 | /// Radius of gyration [A] |
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29 | // [DEFAULT]=radius=5.0 [A] |
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30 | Parameter radius; |
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31 | |
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32 | /// Scale factor |
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33 | // [DEFAULT]=scale= 0.05 |
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34 | Parameter scale; |
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35 | |
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36 | /// Fractal dimension |
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37 | // [DEFAULT]=fractal_dim=2.0 |
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38 | Parameter fractal_dim; |
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39 | |
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40 | /// Correlation Length [A] |
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41 | // [DEFAULT]=cor_length=100.0 [A] |
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42 | Parameter cor_length; |
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43 | |
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44 | /// SDL block [1/A^(2)] |
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45 | // [DEFAULT]=sldBlock=2.0e-6 [1/A^(2)] |
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46 | Parameter sldBlock; |
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47 | |
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48 | /// SDL solvent [1/A^(2)] |
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49 | // [DEFAULT]=sldSolv= 6.35e-6 [1/A^(2)] |
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50 | Parameter sldSolv; |
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51 | |
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52 | /// Incoherent Background [1/cm] |
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53 | // [DEFAULT]=background=0.0 [1/cm] |
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54 | Parameter background; |
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55 | |
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56 | // Constructor |
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57 | FractalModel(); |
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58 | |
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59 | // Operators to get I(Q) |
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60 | double operator()(double q); |
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61 | double operator()(double qx, double qy); |
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62 | double calculate_ER(); |
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63 | double calculate_VR(); |
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64 | double evaluate_rphi(double q, double phi); |
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65 | }; |
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66 | |
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67 | #endif |
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