6D-Cluster: apply rspace_oversize to volume mask

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

zUtil_Deformation/gt6DCreateProjDataFromGrainCluster.m

@@ -235,6 +235,12 @@ function [refor, estim_space_bbox_pix, estim_orient_bbox_rod] = gt6DCreateProjDa
             volume_verts = cat(1, volume_verts, ...
                 bsxfun(@plus, grs(ii_g).fwd_sim.gv_verts, center_shift));
         end
+        k = convhull(volume_verts);
+        volume_verts = volume_verts(k, :);
+        center_verts = max(volume_verts, [], 1) - min(volume_verts, [], 1);
+        volume_verts = bsxfun(@minus, volume_verts, center_verts);
+        volume_verts = bsxfun(@times, volume_verts, conf.ospace_oversize);
+        volume_verts = bsxfun(@plus, volume_verts, center_verts);
 
         proj_bl_masks = gt6DSpreadProjectVertices2Det(refor, volume_verts, fwdsim_sel_refl(~inconvenient_etas), p, conf.det_index);
         blobs = assign_masks(blobs, proj_bl_masks, sel_reflections, true);