Re: Help with 3D graphics

*To*: mathgroup at smc.vnet.net*Subject*: [mg33864] Re: Help with 3D graphics*From*: "Allan Hayes" <hay at haystack.demon.co.uk>*Date*: Sat, 20 Apr 2002 02:49:59 -0400 (EDT)*References*: <a9og0m$df8$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Debbie, 1. For each show option type, Show[ gr1, gr2, .. , grn, showoptions] uses the firse option of that type in , showoptions options from gr1 (options from gr2 ... are not used); so in your code the option PlotRange -> {0,1} is not effective. 2. The SurfaceGraphics object generated by Plot3D will be automatically converted to a Graphics3D object when shown with such an object. 3. We can collect the points together in a list and use single directive PointSize[.05]. Show[Plot3D[2*x + y, {x, 0, 1}, {y, 0, 1}, PlotRange -> {0, 1}, ClipFill -> None], Graphics3D[{PointSize[0.05], Point[{0, 0, 0}], Point[{0, 0, 1}], Point[{0, 1, 0}], Point[{0, 1, 1}]}]] 4. If we want to show only the last picture we can turn display off and then on. Show[Plot3D[2*x + y, {x, 0, 1}, {y, 0, 1}, DisplayFunction -> Identity], Graphics3D[{PointSize[0.05], Point[{0, 0, 0}], Point[{0, 0, 1}], Point[{0, 1, 0}], Point[{0, 1, 1}]}], DisplayFunction -> $DisplayFunction, PlotRange -> {{0, 1}, {0, 1}, {0, 1.1}}]; (I have used (0,1.1} to show the highest point) -- Allan --------------------- Allan Hayes Mathematica Training and Consulting Leicester UK www.haystack.demon.co.uk hay at haystack.demon.co.uk Voice: +44 (0)116 271 4198 Fax: +44 (0)870 164 0565 "Debbie Carlini" <dmc522 at earthlink.net> wrote in message news:a9og0m$df8$1 at smc.vnet.net... > I am doing a project for school and need to be able to plot a 3D graph that > goes from 0 to 1 in x, y and z directions. I also need to be able to plot a > set of 3d points on the same graph as the 3d graph. > Here is what i have so far, the problem is that my second graph does not go > from 0 to 1 in the z direction like the first graph. I think it is a > problem with converting Plot3D to Graphics3D. > > Show[ > Graphics3D[{ PointSize[0.05], Point[{0, 0, 0}] } ], > Graphics3D[{ PointSize[0.05], Point[{0, 0, 1}] } ], > Graphics3D[{ PointSize[0.05], Point[{0, 1, 0}] } ], > Graphics3D[{ PointSize[0.05], Point[{0, 1, 1}] } ], > Graphics3D[ > Plot3D[2x + y, {x, 0, 1}, {y, 0, 1}, PlotRange -> {0, 1}, > ClipFill -> None ]] > > ] > > Would my problem be solved if i used ScatterPlot3D to plot the points. The > problem i've found with this is that ScatterPlot3D will not work in Show > command. > > Thanks > >