Hi Carlo, the Cross reference is supposed to be in the F(x) component. See: http://grasshopper3d.googlegroups.com/web/CrossReferencePointFunction.jpg?gsc=9KON4RYAAABY1x_9yb8DuxJE1VJy_ERVAJwcXtjUFRYNEgqVs1KnTQ
-- David Rutten Robert McNeel & Associates On Oct 24, 12:47 pm, K4rl33 <[EMAIL PROTECTED]> wrote: > Hi guys, > > I'm playing in grasshopper with the Expressions component. > I have already managed F1(x) functions, and with my alghorithm I can > see the flow of the function in a collection of points that generates > the flow of a curve in a bidimensional space; here there's a diagram > of the logic structure. > > RANGE-------------------------------> X > | POINT > |----> F(X) ---> Y > > All right at the moment. > > But now I want to improve from F1(x) functions to F2(x) functions to > study by points the flow in the 3dimensional space. > I take two range components and I join them to the F2(X) component (x > and y with a defined R2 --> R function, for example sin(x+y)), then to > the X and Y of the POINT component, and the F2(X) output to the Z of > the POINT. > What I obtain is not a plane - so a grid - as I want,but a curve > defined by points in the space, on the diagonal of the matrix of > values of the ranges (domains) that I've choosed. If I put "cross > reference" to the POINT component, the diagonal shift to a grid of > points, but in each (X;Y) value I doesn't have a unique Z = F(X;Y) > result as I want , but multiple results, and it is not good because > the function must associate a unique value to each couple of points. > > Sorry for my poor english, I hope you guys have understood the problem > and would give me an answer to solve it! > > K4rl33
