source: sasview/sansmodels/src/sans/models/c_extensions/vesicle.c @ 8a6d4af

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Last change on this file since 8a6d4af was e2afadf, checked in by Jae Cho <jhjcho@…>, 15 years ago

fixed a mistake and changed a para_name

  • Property mode set to 100644
File size: 994 bytes
RevLine 
[3d25331f]1/**
2 * Scattering model for a sphere
3 * @author: Gervaise B alina / UTK
4 */
5
6#include "vesicle.h"
7#include "libSphere.h"
8#include <math.h>
9
10
11/**
12 * Function to evaluate 1D scattering function
13 * @param pars: parameters of the vesicle
14 * @param q: q-value
15 * @return: function value
16 */
17double vesicle_analytical_1D(VesicleParameters *pars, double q) {
18        double dp[6];
[e2afadf]19
[3d25331f]20        dp[0] = pars->scale;
[e2afadf]21        dp[1] = pars->radius;
[3d25331f]22        dp[2] = pars->thickness;
23        dp[3] = pars->core_sld;
24        dp[4] = pars->shell_sld;
25        dp[5] = pars->background;
26
[e2afadf]27
[3d25331f]28        return VesicleForm(dp, q);
29}
[e2afadf]30
[3d25331f]31/**
32 * Function to evaluate 2D scattering function
33 * @param pars: parameters of the vesicle
34 * @param q: q-value
35 * @return: function value
36 */
37double vesicle_analytical_2D(VesicleParameters *pars, double q, double phi) {
38        return vesicle_analytical_1D(pars,q);
39}
40
41double vesicle_analytical_2DXY(VesicleParameters *pars, double qx, double qy){
[e2afadf]42        return vesicle_analytical_1D(pars,sqrt(qx*qx+qy*qy));
[3d25331f]43}
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