Greetings, I have a regularly spaced 2d-matrix in a dx-formatted file, with positions, connections and data. The positions extend in x-direction from -Lx to Lx, and in y direction from -Ly to Ly. The data is thus defined on a grid for positions (x,y) with -Lx <= x <= Lx and -Ly <= y <= Ly.
For my analysis I only want to operate on a subset of this matrix, so ideally I would specify values lx_min and lx_max, and ly_min and ly_max, and ask some module to exclude only points for which lx_min <= x <= lx_max and ly_min <= y <= ly_max. I can see that this could possibly be solved by marking positions, having several Include modules with Compute modules (to get x and y-components) in series, and eventually unmarking the positions. However, this sounds like lots of boxes on the screen ... Is there a better solution? Many thanks, Hans ---------------------------------------------- Hans Fangohr University of Southampton ----------------------------------------------
