Add ENsetdemandpattern

include/epanet2.h

@@ -933,6 +933,15 @@ extern "C" {
    */
   int  DLLEXPORT ENsetbasedemand(int nodeIndex, int demandIdx, EN_API_FLOAT_TYPE baseDemand);
   
+   /**  
+   @brief Sets the index of the demand pattern assigned to a node for a category index. 
+   @param nodeIndex The index of a node (first node is index 1).  
+   @param demandIndex The index of a category (first category is index 1).  
+   @param pattIndex The index of the pattern for this node and category.  
+   @return Error code 
+   */ 
+  int  DLLEXPORT ENsetdemandpattern(int nodeIndex, int demandIdx, int patIndex);
+  
   /**
    @brief Retrieves index of curve with specific ID.
    @param id The ID of a curve.