Hi, I have made an XY graph in Grasshopper like the upper graph in the rhino screendump via below link. The graph is changing with other grasshopper functions. The XY values are available in grasshopper via a list and via a curve. I need to get the positive area (m^3) as well as the negative area under the graph. Till now I tried to solve this graphically without succes. Can anybody help how I can do this?
http://groups.google.com/group/grasshopper3d/web/xy%20graph.jpg?hl=en Bas
