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### GRBCallback::getNodeRel()

Retrieve values from the node relaxation solution at the current node. Only available when the where member variable is equal to GRB_CB_MIPNODE, and GRB_CB_MIPNODE_STATUS is equal to GRB_OPTIMAL.

 double getNodeRel ( GRBVar v )

Arguments:

v: The variable whose value is desired.

Return value:

The value of the specified variable in the node relaxation for the current node.

 double* getNodeRel ( const GRBVar* xvars, int len )
Arguments:

xvars: The list of variables whose values are desired.

len: The number of variables in the list.

Return value:

The values of the specified variables in the node relaxation for the current node. Note that the result is heap-allocated, and must be returned to the heap by the user.