Re: Plot&2backgroundcolors

*To*: mathgroup at smc.vnet.net*Subject*: [mg44319] Re: Plot&2backgroundcolors*From*: bobhanlon at aol.com (Bob Hanlon)*Date*: Wed, 5 Nov 2003 10:00:48 -0500 (EST)*References*: <bo7nq2$ads$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Needs["Graphics`Colors`"]; orig=1.234; Plot[Sin[x], {x,0,Pi}, PlotStyle->{Blue, AbsoluteDashing[{}]}, Frame->True, Prolog->{Text[orig, {orig,-0.2}], Antique,Rectangle[{0, 0}, {orig, 1}], LightBeige,Rectangle[{orig, 0}, {Pi, 1}], Red, AbsoluteDashing[{5,5}], Line[{{orig,0}, {orig,1} }]}, PlotRange->All]; However, if you also want to change the style of the plot in mid stream Needs["Graphics`Graphics`"]; DisplayTogether[ Plot[Sin[x], {x,0,orig}, PlotStyle->{Green, AbsoluteDashing[{}]}], Plot[Sin[x], {x,orig,Pi}, PlotStyle->{Blue, AbsoluteDashing[{}]}], Prolog->{Text[orig, {orig,-0.2}], Antique,Rectangle[{0, 0}, {orig, 1}], LightBeige,Rectangle[{orig, 0}, {Pi, 1}], Red, AbsoluteDashing[{5,5}], Line[{{orig,0}, {orig,1} }]}, PlotRange->All, Frame->True]; Bob Hanlon In article <bo7nq2$ads$1 at smc.vnet.net>, Roberto Brambilla <rlbrambilla at cesi.it> wrote: << I have to plot a function, let it be Sin[x] in (0-pg), then I have a peculiar abscissa, ex. x=1.234. I'd like to overlap to a normal grid and frame a vertical line at this abscissa in same different style (as dash or color or thickness, etc.) . How can I do it? How can I have also this value explicit as a tick on the plot? Then all this would be even better if I could have two background colors (or gray levels), before and after the selected abscissa.