[tomohdf5tonx] add `x_magnified_pixel_size` and `y_magnified_pixel_size` properties

tomoscan/esrf/hdf5scan.py

@@ -91,6 +91,10 @@ class HDF5TomoScan(TomoScanBase):
 
     _Y_PIXEL_SIZE_PATH = 'instrument/detector/y_pixel_size'
 
+    _X_PIXEL_MAG_SIZE_PATH = 'instrument/detector/x_magnified_pixel_size'
+
+    _Y_PIXEL_MAG_SIZE_PATH = 'instrument/detector/y_magnified_pixel_size'
+
     _DISTANCE_PATH = 'instrument/detector/distance'
 
     _ENERGY_PATH = 'beam/incident_energy'
@@ -186,6 +190,8 @@ class HDF5TomoScan(TomoScanBase):
         self._dim_1, self._dim_2 = None, None
         self._x_pixel_size = None
         self._y_pixel_size = None
+        self._x_magnified_pixel_size = None
+        self._y_magnified_pixel_size = None
         self._rotation_angles = None
         self._distance = None
         self._image_keys_control = None
@@ -485,6 +491,14 @@ class HDF5TomoScan(TomoScanBase):
             _y_pixel_size = self._get_value(y_pixel_dataset, default_unit='micrometer')
         return _x_pixel_size, _y_pixel_size
 
+    def _get_x_y_magnified_pixel_values(self):
+        with h5py.File(self.master_file, 'r') as h5_file:
+            x_m_pixel_dataset = h5_file[self._entry][self._X_PIXEL_MAG_SIZE_PATH]
+            _x_m_pixel_size = self._get_value(x_m_pixel_dataset, default_unit='micrometer')
+            y_m_pixel_dataset = h5_file[self._entry][self._Y_PIXEL_MAG_SIZE_PATH]
+            _y_m_pixel_size = self._get_value(y_m_pixel_dataset, default_unit='micrometer')
+        return _x_m_pixel_size, _y_m_pixel_size
+
     def _get_dim1_dim2(self):
         if self.master_file and os.path.exists(self.master_file):
             if self.projections is not None:
@@ -498,6 +512,20 @@ class HDF5TomoScan(TomoScanBase):
             self._x_pixel_size, self._y_pixel_size = self._get_x_y_pixel_values()
         return self._y_pixel_size
 
+    @property
+    def x_magnified_pixel_size(self) -> typing.Union[None, float]:
+        if (self._x_magnified_pixel_size is None and self.master_file and
+                os.path.exists(self.master_file)):
+            self._x_magnified_pixel_size, self._y_magnified_pixel_size = self._get_x_y_magnified_pixel_values()
+        return self._x_magnified_pixel_size
+
+    @property
+    def y_magnified_pixel_size(self) -> typing.Union[None, float]:
+        if (self._y_magnified_pixel_size is None and self.master_file and
+                os.path.exists(self.master_file)):
+            self._x_magnified_pixel_size, self._y_magnified_pixel_size = self._get_x_y_magnified_pixel_values()
+        return self._y_magnified_pixel_size
+
     @property
     def distance(self) -> typing.Union[None, float]:
         if (self._distance is None and self.master_file and