Merge branch '68-convert-float-results-to-single-precision' into 'master'

Resolve "Convert float results to single precision"

Closes #68

See merge request !58

fluegg/results.py

@@ -21,6 +21,15 @@ class Results(ABC):
         self._domain_length = results.domain_length()
         self._time = results.time(slice(None))
 
+    def _convert_to_single(self):
+
+        for k in self.__class__.__dict__['_members']:
+            data = self.__dict__[k]
+            if isinstance(data, np.ndarray):
+                data = data.astype('f4')  # convert to single precision
+            elif isinstance(data, np.float64):
+                data = np.float32(data)
+
     def configuration(self):
         """Returns the configuration dictionary
 
@@ -267,6 +276,8 @@ class FullResults(Results):
         self._depth = results.depth()
         self._width = results.width()
 
+        self._convert_to_single()
+
     def _normalize_axis(self, position_axis):
         """Returns one position axis, normalized
 
@@ -545,6 +556,8 @@ class QuantileResults(Results):
             positions = results.positions((0, 1, 2))
             self._positions = np.quantile(positions, self._quantiles, axis=1)
 
+        self._convert_to_single()
+
     def position_cfrac(self, time, position_axis=0):
         """Cumulative fraction of particles past positions at a
         given time