clip without createClippedAxis

Device/Data/DataUtils.cpp

@@ -134,14 +134,12 @@ DataUtils::Data::createClippedDataSet(const OutputData<double>& origin, double x
 
     std::unique_ptr<OutputData<double>> result(new OutputData<double>);
     for (size_t i_axis = 0; i_axis < origin.rank(); i_axis++) {
-        const IAxis& axis = origin.axis(i_axis);
-        IAxis* new_axis;
+        std::unique_ptr<IAxis> new_axis{origin.axis(i_axis).clone()};
         if (i_axis == 0)
-            new_axis = axis.createClippedAxis(x1, x2);
+            new_axis->clip(x1, x2);
         else
-            new_axis = axis.createClippedAxis(y1, y2);
+            new_axis->clip(y1, y2);
         result->addAxis(*new_axis);
-        delete new_axis;
     }
     result->setAllTo(0.0);