Synthetic grain fwd-proj: made mr easy to check fedpars' usage

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

zUtil_Deformation/gtDefSyntheticGrainCreate.m

@@ -144,7 +144,8 @@ gv.cs = vox000sam(:, nv_ones) + (gv.ind - 0.5) .* phantom_voxsize(:, nv_ones);
 % Producing centers and deformation components for projection
 if (isfield(fedpars, 'volume_super_sampling') ...
         && (fedpars.volume_super_sampling > 1))
-    [gv.pcs, gv.d] = compute_oversampling_voxels(gv, dmvol, fedpars, phantom_voxsize);
+    [gv.pcs, gv.d] = compute_oversampling_voxels(gv, dmvol, ...
+        phantom_voxsize, fedpars.volume_super_sampling, fedpars.gvtype);
 else
     gv.pcs = gv.cs;
     gv.d = gv.dm;
@@ -264,15 +265,13 @@ end
 
 end
 
-function [gvpcs, gvd] = compute_oversampling_voxels(gv, dmvol, fedpars, voxsize)
+function [gvpcs, gvd] = compute_oversampling_voxels(gv, dmvol, voxsize, vssampling, gvtype)
     nv = size(gv.ind, 2);
     nv_ones = ones(nv, 1);
 
-    vssampling = fedpars.volume_super_sampling;
-
     num_subvoxels = vssampling ^ 3;
-    gvpcs = zeros(3, nv, num_subvoxels, fedpars.gvtype);
-    gvd = zeros(3, nv, num_subvoxels, fedpars.gvtype);
+    gvpcs = zeros(3, nv, num_subvoxels, gvtype);
+    gvd = zeros(3, nv, num_subvoxels, gvtype);
 
     dmvol_size = [size(dmvol, 1), size(dmvol, 2), size(dmvol, 3)]';
     dmvol_size = dmvol_size(:, nv_ones);