-                      r67424cd
+                      r20d91bd
 #if !defined(schulz_h)
 #define schulz_h
+#include "parameters.hh"
 /** Structure definition for Schulz parameters.
 …
                                         R= x/center</text>
  */
-typedef struct {
-    /// Scale factor
-    //  [DEFAULT]=scale=1.0
-    double scale;
-    /// Standard deviation
-    //  [DEFAULT]=sigma=1
-    double sigma;
-    /// Center of the Schulz distribution
-    //  [DEFAULT]=center=0.0
-    double center;
-} SchulzParameters;
+/// 1D scattering function
+double schulz_analytical_1D(SchulzParameters *pars, double x);
+class Schulz{
+public:
+  /// Scale factor
+  //  [DEFAULT]=scale=1.0
+  Parameter scale;
+  /// Standard deviation
+  //  [DEFAULT]=sigma=1
+  Parameter sigma;
+  /// Center of the Schulz distribution
+  //  [DEFAULT]=center=0.0
+  Parameter center;
+/// 2D scattering function
+double schulz_analytical_2D(SchulzParameters *pars, double x, double phi);
+double schulz_analytical_2DXY(SchulzParameters *pars, double x, double y);
+  // Constructor
+  Schulz();
+  // Operators to get I(Q)
+  double operator()(double q);
+  double operator()(double qx, double qy);
+  double calculate_ER();
+  double evaluate_rphi(double q, double phi);
+};
 #endif

sansmodels/src/c_models/c_models.cpp

-                      r82c11d3
+                      r20d91bd
         void addCGaussian(PyObject *module);
         void addCLogNormal(PyObject *module);
-        void addCSchulz(PyObject *module);
+}
 void addCLorentzian(PyObject *module);
+void addCSchulz(PyObject *module);
 /**

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