add import NAS volume files

include/Algo/Import/import.h

@@ -124,6 +124,9 @@ bool importMSH(typename PFP::MAP& the_map, const std::string& filename, std::vec
 template <typename PFP>
 bool importVTU(typename PFP::MAP& the_map, const std::string& filename, std::vector<std::string>& attrNames, float scaleFactor = 1.0f);
 
+template <typename PFP>
+bool importNAS(typename PFP::MAP& the_map, const std::string& filename, std::vector<std::string>& attrNames, float scaleFactor = 1.0f);
+
 
 } // Import
 
@@ -143,6 +146,7 @@ bool importVTU(typename PFP::MAP& the_map, const std::string& filename, std::vec
 #include "Algo/Import/importNodeEle.hpp"
 #include "Algo/Import/importMSH.hpp"
 #include "Algo/Import/importVTU.hpp"
+#include "Algo/Import/importNAS.hpp"
 
 #include "Algo/Import/importChoupi.hpp"
 

include/Algo/Import/importMesh.hpp

@@ -552,6 +552,9 @@ bool importMesh(typename PFP::MAP& map, const std::string& filename, std::vector
 		return importVTU<PFP>(map, filename, attrNames, 1.0f);
 		break;
 
+	case NAS:
+		return importNAS<PFP>(map, filename, attrNames, 1.0f);
+		break;
 
 		case OFF:
 		{