Hello Is it possible to combine scalars to a vector? I only have got scalars and want to visualise streamlines... Best regards, -- Dipl.-Ing. Soeren Freudiger Institut fuer ComputerAnwendungen im Bauingenieurwesen TU Braunschweig, Pockelsstr. 3, D-38106 Braunschweig Tel.: +49 531/391-7595, Mobil: +49 176/210 17 444 email: freud at cab.bau.tu-bs.de http://www.cab.bau.tu-bs.de/