Re: Plot&2backgroundcolors

*To*: mathgroup at smc.vnet.net*Subject*: [mg44342] Re: [mg44262] Plot&2backgroundcolors*From*: Tomas Garza <tgarza01 at prodigy.net.mx>*Date*: Wed, 5 Nov 2003 10:02:01 -0500 (EST)*References*: <200311040823.DAA10407@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

It's a good idea to play around a little with graphics primitives and directives, so as to become familiar with these things. For example, the following could be a first approach to your question: In[1]:= p1 = Plot[Sin[x], {x, 0, 1.234}, DisplayFunction -> Identity]; In[2]:= p2 = Plot[Sin[x], {x, 1.234, Pi}, DisplayFunction -> Identity]; In[3]:= Show[Graphics[{Hue[0.8], Rectangle[{0, 0}, {1.234, 1}]}], Graphics[{Hue[0.2], Rectangle[{1.234, 0}, {Pi, 1}]}], p1, p2, Graphics[{Hue[1], Thickness[0.01], Line[{{1.234, -0.1}, {1.234, 1.1}}]}], Graphics[Text["1.234", {1.234, -0.2}]], Axes -> True, AxesOrigin -> {-0.1, 0}, DisplayFunction -> $DisplayFunction]; Tomas Garza Mexico City ----- Original Message ----- From: "Roberto Brambilla" <rlbrambilla at cesi.it> To: mathgroup at smc.vnet.net Subject: [mg44342] [mg44262] Plot&2backgroundcolors > Hello, > > 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. > > Many thanks in advance, Roberto > > Roberto Brambilla > CESI > Via Rubattino 54 > 20134 Milano > tel +39.02.2125.5875 > fax +39.02.2125.5492 > rlbrambilla at cesi.it > > >

**References**:**Plot&2backgroundcolors***From:*Roberto Brambilla <rlbrambilla@cesi.it>