Threshoulding: fixed bug in checking parameters version

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

4_grains/GtThreshold.m

@@ -102,7 +102,7 @@ classdef GtThreshold < handle
                     grain_file = fullfile(phase_dir, sprintf('grain_%04d.mat', grainID));
                     grain      = load(grain_file, 'vol', 'shift', 'id');
 
-                    if (isfield(obj.param.rec.grains) ...
+                    if (isfield(obj.param.rec, 'grains') ...
                             && ismember(upper(obj.param.rec.grains.algorithm), {'6DL1', '6DTV', '6DTVL1'}))
                         file_details_path = fullfile(phase_dir, ...
                             sprintf('grain_details_%04d.mat', grainID));
@@ -174,7 +174,7 @@ classdef GtThreshold < handle
             grain = load(filePath);
 
             % Should be enabled as soon as GrainsManager can handle it.
-%             if (isfield(obj.param.rec.grains) ...
+%             if (isfield(obj.param.rec, 'grains') ...
 %                     && ismember(upper(obj.param.rec.grains.algorithm), {'6DL1', '6DTV', '6DTVL1'}))
 %                 file_details_path = fullfile(phase_dir, ...
 %                     sprintf('grain_details_%04d.mat', grainID));