Changeset ea75043 in sasmodels for sasmodels/direct_model.py

Timestamp:

Mar 29, 2016 6:22:13 PM (8 years ago)

Author:

Paul Kienzle <pkienzle@…>

Branches:

master, core_shell_microgels, costrafo411, magnetic_model, release_v0.94, release_v0.95, ticket-1257-vesicle-product, ticket_1156, ticket_1265_superball, ticket_822_more_unit_tests

Children:

d6f5da6

Parents:

1d61d07

Message:

add support for oriented usans using direct 2d resolution integral

File:

• sasmodels/direct_model.py (modified) (6 diffs)

sasmodels/direct_model.py

@@ -63 +63 @@
         elif hasattr(data, 'qx_data'):
             self.data_type = 'Iqxy'
+        elif getattr(data, 'oriented', False):
+            self.data_type = 'Iq-oriented'
         else:
             self.data_type = 'Iq'
@@ -116 +118 @@
                   and getattr(data, 'dxw', None) is not None):
                 res = resolution.Slit1D(data.x[index],
-                                        width=data.dxh[index],
-                                        height=data.dxw[index])
+                                        qx_width=data.dxw[index],
+                                        qy_width=data.dxl[index])
             else:
                 res = resolution.Perfect1D(data.x[index])
@@ -123 +125 @@
             #self._theory = np.zeros_like(self.Iq)
             q_vectors = [res.q_calc]
+            q_mono = []
+        elif self.data_type == 'Iq-oriented':
+            index = (data.x >= data.qmin) & (data.x <= data.qmax)
+            if data.y is not None:
+                index &= ~np.isnan(data.y)
+                Iq = data.y[index]
+                dIq = data.dy[index]
+            else:
+                Iq, dIq = None, None
+            if (getattr(data, 'dxl', None) is None
+                or getattr(data, 'dxw', None) is None):
+                raise ValueError("oriented sample with 1D data needs slit resolution")
+
+            res = resolution2d.Slit2D(data.x[index],
+                                      qx_width=data.dxw[index],
+                                      qy_width=data.dxl[index])
+            q_vectors = res.q_calc
             q_mono = []
         else:
@@ -142 +161 @@
         y = Iq + np.random.randn(*dy.shape) * dy
         self.Iq = y
-        if self.data_type == 'Iq':
+        if self.data_type in ('Iq', 'Iq-oriented'):
             self._data.dy[self.index] = dy
             self._data.y[self.index] = y
@@ -155 +174 @@
         if self._kernel is None:
             self._kernel = make_kernel(self._model, self._kernel_inputs)  # pylint: disable=attribute-dedata_type
-            self._kernel_mono = make_kernel(self._model, self._kernel_mono_inputs) if self._kernel_mono_inputs else None
+            self._kernel_mono = (make_kernel(self._model, self._kernel_mono_inputs)
+                                 if self._kernel_mono_inputs else None)
 
         Iq_calc = call_kernel(self._kernel, pars, cutoff=cutoff)
-        Iq_mono = call_kernel(self._kernel_mono, pars, mono=True) if self._kernel_mono_inputs else None
+        # TODO: may want to plot the raw Iq for other than oriented usans
+        self.Iq_calc = None
         if self.data_type == 'sesans':
+            Iq_mono = (call_kernel(self._kernel_mono, pars, mono=True)
+                       if self._kernel_mono_inputs else None)
             result = sesans.transform(self._data,
                                    self._kernel_inputs[0], Iq_calc, 
@@ -165 +188 @@
         else:
             result = self.resolution.apply(Iq_calc)
+            if hasattr(self.resolution, 'nx'):
+                self.Iq_calc = (
+                    self.resolution.qx_calc, self.resolution.qy_calc,
+                    np.reshape(Iq_calc, (self.resolution.ny, self.resolution.nx))
+                )
         return result