/// <summary>
/// Combines two graphs using the operator of this binary expression
/// </summary>
/// <param name="leftGraph"></param>
/// <param name="rightGraph"></param>
/// <returns></returns>
private Functions.Graph combineGraph(Functions.Graph leftGraph, Functions.Graph rightGraph)
{
Functions.Graph retVal = null;
switch (Operation)
{
case BinaryExpression.OPERATOR.ADD:
retVal = leftGraph.AddGraph(rightGraph);
break;
case BinaryExpression.OPERATOR.SUB:
retVal = leftGraph.SubstractGraph(rightGraph);
break;
case BinaryExpression.OPERATOR.MULT:
retVal = leftGraph.MultGraph(rightGraph);
break;
case BinaryExpression.OPERATOR.DIV:
retVal = leftGraph.DivGraph(rightGraph);
break;
}
return retVal;
}