gtSetup : fix bug wherever the xml file doesn't exist

Signed-off-by: Laura Nervo <laura.nervo@esrf.fr>

git-svn-id: https://svn.code.sf.net/p/dct/code/trunk@563 4c865b51-4357-4376-afb4-474e03ccb993

1_preprocessing/gtSetup.m

@@ -213,15 +213,15 @@ catch mexc
     end
 end
 % update energy field from updated xml file
-params_xml.energy = tmpxml.acquisition.energy;
-parameters.acq = gtAddMatFile(parameters.acq,params_xml,true,true,false);
+if ~isempty(tmpxml)
+    params_xml.energy = tmpxml.acquisition.energy;
+    parameters.acq = gtAddMatFile(parameters.acq,params_xml,true,true,false);
+end
 clear params_xml
 
-
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % Default acquisition parameters 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
 params_acq = gtAcqDefaultParameters(parameters.acq);
 parameters.acq = gtAddMatFile(parameters.acq,params_acq,true,true,false);
 clear params_acq