fixed little bugs

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

zUtil_Imaging/gtGetVolsIntersectLimits.m

@@ -5,9 +5,11 @@ function [lims1, lims2] = gtGetVolsIntersectLimits(size1, size2, shift)
 
     num_dims_1 = size(size1, 2);
     num_dims_2 = size(size2, 2);
+    num_dims_s = size(shift, 2);
 
     size1(:, (num_dims_1+1):3) = 1;
     size2(:, (num_dims_2+1):3) = 1;
+    shift(:, (num_dims_s+1):3) = 0;
     if (num_dims_1 > 3)
         warning('gtGetVolsIntersectLimits:wrong_argument', ...
             'first volume size refers to a %d-dimensional volume', num_dims_1)

zUtil_Imaging/gtVolumeGetSlice.m

 function slice = gtVolumeGetSlice(vol, plane, slice_idx, do_squeeze)
     switch (lower(plane))
-        case 'xy'
+        case {'xy', 'XY'}
             slice = vol(:, :, slice_idx, :);
-        case 'yx'
+        case {'yx', 'YX'}
             slice = permute(vol(:, :, slice_idx, :), [2 1 3 4]);
-        case 'yz'
+        case {'yz', 'YZ'}
             slice = vol(slice_idx, :, :, :);
-        case 'zy'
-            slice = permute(vol(slice_idx, :, :, :), [2 1 3 4]);
-        case 'xz'
+        case {'zy', 'ZY'}
+            slice = permute(vol(slice_idx, :, :, :), [1 3 2 4]);
+        case {'xz', 'XZ'}
             slice = vol(:, slice_idx, :, :);
-        case 'zx'
-            slice = permute(vol(:, slice_idx, :, :), [2 1 3 4]);
+        case {'zx', 'ZX'}
+            slice = permute(vol(:, slice_idx, :, :), [3 2 1 4]);
     end
     if (~exist('do_squeeze', 'var') || isempty(do_squeeze) || do_squeeze)
         slice = squeeze(slice);