experimental: only show the last step if we have more than 2 steps (to avoid...

experimental: only show the last step if we have more than 2 steps (to avoid always showing the imaginary part for complex fields)

Common/DefaultOptions.h

@@ -1309,7 +1309,8 @@ StringXNumber SolverOptions_Number[] = {
   { F|O, "AutoShowViews" , opt_solver_auto_show_views , 2. ,
     "Automcatically show newly merged results (0: none; 1: all; 2: last one)" },
   { F|O, "AutoShowLastStep" , opt_solver_auto_show_last_step , 1. ,
-    "Automatically show the last time step in newly merged results" },
+    "Automatically show the last step in newly merged results, if there are "
+    "more than 2 steps" },
 
   { F|O, "Plugins" , opt_solver_plugins , 0. ,
     "Enable default solver plugins?" },

Common/OpenFile.cpp

@@ -616,12 +616,13 @@ int MergePostProcessingFile(const std::string &fileName, int showViews,
     }
   }
 
-  // if we added steps, go to the last one
+  // if we added steps, and we have more than 2 (to avoid always showing the
+  // imaginary part for complex fields), go to the last one
   if(showLastStep){
     steps.resize(PView::list.size(), 0);
     for(unsigned int i = 0; i < PView::list.size(); i++){
       int step = (int)opt_view_nb_timestep(i, GMSH_GET, 0);
-      if(step > steps[i])
+      if(step > steps[i] && steps[i] > 1)
         opt_view_timestep(i, GMSH_SET|GMSH_GUI, step - 1);
     }
   }