Extended grains: fixed small bug

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

zUtil_Deformation/gt6DCreateProjDataFromExtendedGrain.m

@@ -96,6 +96,7 @@ function [refor, estim_space_bbox_pix, estim_orient_bbox] = gt6DCreateProjDataFr
     end
 
     or_abs = cat(1, ors(:).allblobs);
+    num_ors = numel(or_abs);
     uvw_tab = zeros(numel(used_refl), num_ors, 3);
     for ii_g = 1:num_ors
         if (isfield(or_abs(1), 'detector'))