numComp counting when default value (=-1) is used, has been lost since 7668 revision

Post/PViewDataGModelIO.cpp

@@ -16,6 +16,13 @@ bool PViewDataGModel::addData(GModel *model, std::map<int, std::vector<double> >
 {
   if(data.empty()) return false;
 
+  if (numComp < 0){
+    numComp = 9;
+    for(std::map<int, std::vector<double> >::iterator it = data.begin();
+        it != data.end(); it++)
+      numComp = std::min(numComp, (int)it->second.size());
+  }
+
   while(step >= (int)_steps.size())
     _steps.push_back(new stepData<double>(model, numComp));