Acq: small fixed to account for multiple detectors and single acq field (should be changed)

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

1_preprocessing/gtGetOmegaStepDeg.m

@@ -7,7 +7,11 @@ function omega_step = gtGetOmegaStepDeg(parameters, det_ind)
         omega_step = parameters.detgeo(det_ind).omstep;
     elseif (isfield(parameters.labgeo, 'omstep'))
         omega_step = parameters.labgeo.omstep;
-    else
+    elseif (numel(parameters.acq) > 1 || det_ind == 1)
         omega_step = 180 / parameters.acq(det_ind).nproj;
+    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;
     end
 end
\ No newline at end of file

1_preprocessing/gtGetTotNumberOfImages.m

 function totproj = gtGetTotNumberOfImages(parameters, det_index)
 
-    if (~exist('det_index', 'var') || isempty(det_index))
+    if (~exist('det_index', 'var') || isempty(det_index) ...
+            || (numel(parameters.acq) == 1 && det_index > 1))
+        % We should complain more about the third possibility
         det_index = 1;
     end
 

4_grains/gtGrainAnglesTabularFix360deg.m

-function w_tab = gtGrainAnglesTabularFix360deg(w_tab, ref_int_ws, parameters)
+function w_tab = gtGrainAnglesTabularFix360deg(w_tab, ref_int_ws, parameters, det_index)
     if (exist('parameters', 'var') && ~isempty(parameters))
-        num_images = gtGetTotNumberOfImages(parameters);
+        if (~exist('det_index', 'var') || isempty(det_index))
+            det_index = 1;
+        end
+        num_images = gtGetTotNumberOfImages(parameters, det_index);
 
         % Let's treat those blobs at the w edge 360->0
         % (from the sampled orientations perspective)