Re: vertical plane in plot3D

*To*: mathgroup at smc.vnet.net*Subject*: [mg113161] Re: vertical plane in plot3D*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Sat, 16 Oct 2010 13:10:14 -0400 (EDT)*Reply-to*: hanlonr at cox.net

f[x_, y_] := Sin[2 + Pi*(x/50 + (y/50)^2)] Show[{Plot3D[f[x, y], {x, 0, 100}, {y, 0, 100}], ContourPlot3D[x == 80, {x, 0, 100}, {y, 0, 100}, {z, -2, 2}]}, PlotRange -> All] Show[{Plot3D[f[x, y], {x, 0, 100}, {y, 0, 100}], ContourPlot3D[x == y, {x, 0, 100}, {y, 0, 100}, {z, -2, 2}]}, PlotRange -> All] Show[{Plot3D[f[x, y], {x, 0, 100}, {y, 0, 100}], ContourPlot3D[{x == 80, y == 50}, {x, 0, 100}, {y, 0, 100}, {z, -2, 2}]}, PlotRange -> All] Bob Hanlon ---- Greg Colbourn <gcolbourn at hotmail.com> wrote: ============= Hi, Sorry for the basic question. But I'm having trouble plotting a vertical pl= ane in Plot3D. I've got a surface graph, but I want to overlay an transpa= rent plane at a set value on the x axis. So, I want to plot x=80 for al= l y and z. Plot3D[x = 80, {x, 0, 100}, {y, 0, 100}] just gives me z=80 for all x and y (i.e. a horizontal plane) Cheers,Greg =