How to change colours for single line

[Narahari s. p. <pra...@re...>]

hi Micha,=0A=0AI couldnt understand,Could u please give my some suggestion.=
=0AIs it possible to change colors for single line using "Surfaceplot".=0A=
=0AThanks for u kind reply=0A=0ABest Regards=0Aprasad=0A=0A =0A  =0A