Omega step is now coherent with the number of images

Signed-off-by: Nicola Vigano <nicola.vigano@esrf.fr>

1_preprocessing/gtAcqGetOmegaStep.m

@@ -22,11 +22,11 @@ function omega_step = get_step(parameters, det_ind)
         omega_step = parameters.detgeo(det_ind).omstep;
     else
         if (numel(parameters.acq) > 1 || det_ind == 1)
-            omega_step = 180 / parameters.acq(det_ind).nproj;
+            omega_step = 360 / gtAcqTotNumberOfImages(parameters, det_ind);
         else
             % This is the last resort! It should become more verbose in the
             % future, in case it happens!
-            omega_step = 180 / parameters.acq(1).nproj;
+            omega_step = 360 / gtAcqTotNumberOfImages(parameters, 1);
         end
     end
 end
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