plotting field data

thomas

Hello, I am trying to plot field data along a line in my domain. Star cd offers the option of selecting the line by picking the endpoints with the cursor. However, since I am trying to compare different grids, this is not accurate enough. In the pull down menu on the graph tab where the line definition method can be chosen, there is also the option to specify a point and a vector. This is what i want. For some reason though this option appears in grey and cannot be picked. There is nothing in the manual about conditions under which this option is disabled. It's driving me crazy! Has Anyone ever encountered this problem?or knows a possible solution to it?

I would be very thankfull

Thomas